Aircraft alarm or indicating systems

Aircraft beacons

Lights communicate (e.g., direction, altitude, reference position to observer)

Docking guidance

Flight alarm

Altitude

Attitude (including yaw, angle of attack, roll, pitch, glide slope)

Phased warnings for same flight condition

Speed

Stall

Tactile

Wind shear

Icing indicator

Land-based landing guidance

Aircraft actuation of land-based landing guides

Movable (e.g., rotatable) guides

Particular energy guide source (e.g., sound, electric field, radio)

Magnetic field guide

Visual source

Alignment of plural sources

Modulated light source

Plural colors

Phased landing guidance (e.g., runway approach, landing, touchdown)

Wind direction

Landing gear indicator

Nonairplane (e.g., balloon or helicopter)

Nonalarm flight indicator

Altitude

Attitude

Glide slope or path

Roll or pitch

Heading (includes deviation from desired course)

Indicator of at least four flight parameters (altitude, speed, etc.)

Indicator visible in pilot's line of sight through windscreen

Runway presentation

Speed

Obstruction beacon

Potential collision with other aircraft

Takeoff indicator

Audible indication

Diaphragm (e.g., horn or buzzer)

Alternating current

Armature support

Having spring

Housing or mounting

Interrupter

Having spring

Rotary actuator

Having spring

With auxiliary flexible membrane

With resonance chamber

Electronic siren (e.g., wail tone or yelp tone warning device)

Electronic

Plural generators

Timing

With sound transducer details

Explosive

Percussion-type sound producer (e.g., signal chimes or bells)

Alternating current

Armature support

Having spring

Battery operated

Housing or mounting

Including timer

Interrupter

Having spring

Nonelectrical driving means (e.g., spring or weight)

With electromagnetic control

Including circuit breaker

Plural armatures

Polarized

Pushbutton

Resonator (e.g., signal chimes)

Rotary actuator

Suspended (e.g., locomotive bell)

Tubular sound producer (e.g., signal chimes)

Volume control

Piezoelectric

Pneumatic-type sound producer (e.g., whistle or siren)

Rotary actuator

With valve

Simulation

Ultrasonic pest control

Weatherproofing

With computer element

Condition responsive indicating system (340/500)

Condition responsive indicating system (340/500)

Condition responsive indicating system (340/500)

Condition responsive indicating system (340/500)

Condition responsive indicating system (340/500)

Condition responsive indicating system (340/500)

Condition responsive indicating system (340/500)

Specific condition (340/540)

Specific condition (340/540)

Specific condition (340/540)

Specific condition (340/540)

Condition of electrical apparatus (340/635)

Intrusion detection (340/541)

With particular coupling link (340/531)

Condition responsive indicating system

Specific condition

Acceleration

Article placement or removal (e.g., anti-theft)

Alarm on protected article

Article on pedestal, in display case, or mounted on wall (e.g., work of art)

Currency, credit card, or container therefor (e.g., wallet or handbag)

Detectable device on protected article (e.g., "tag")

Deactivatable by means other than mere removal

Having "soft" magnetic element (e.g., permalloy)

Having tuned resonant circuit

Specified antenna structure

Specified device housing or attachment means

Having means locking device to article

Specified processing arrangement for detected signal

Specified relationship between field and detection frequencies (e.g., nth order harmonics)

Drawer

Mailbox

Shopping cart or item thereon

Signal-carrying conduit between sensor and article (e.g., cable, power cord, or data link)

Power cord

Specified connector (e.g., phone jack-type plug)

Sporting equipment (e.g., golfbag, club, cart, or skis)

Article transport

Discrete articles

Strand

Web, film, or strip

Conveyor belt

Condition of electrical apparatus

Battery

Battery deterioration detection

By change or rate of change of impedance or admittance

By current and voltage

By current

Thermochromic indication

By voltage

Having load detail

Having overcharge detection or protection

Including temperature detection

Including charging circuit

Wet cell type

Breaking of circuit continuity

Circuit energization

Electrical socket

Heating circuit

Condition of intentional grounding circuit

Electronic circuit or component

Fuse or circuit breaker

Plural

Heater element

Insulation

Motor

Rectifier

Signalling light element

Plural bulbs or filaments

Thermal or magnetic current sensors

Switch or relay

Transformer

Undesired circuit ground or short

For plural circuit conductors

Watt-hour meter

Electrical characteristic

Current

Phase or frequency

Pulse or surge

Voltage

Comparison

Overvoltage

Undervoltage

Flame

By ionization or conductivity

By radiant energy

Fluent material

Flow rate

Counting

Filter clogging

Pressure

Stoppage

Vane in flow path

Gas

Catalytic detector

Semiconductor detector

Leakage

Material level

Liquid

Electrode probe

Float sensor

Pivoted arm

Vertically reciprocable

Having heat sensor

Having sonic sensor

Optical sensor

Moving sensor (e.g., impeller)

Overflow

Pressure

Pulverant material (e.g., bin)

Weight in container

Particle suspension in fluid

Lubricant

Smoke

Ionization

Photoelectric

Pressure

Wetness

Force or stress

Tension

Weight

On seat

Human or animal

Domestic animal training, monitoring, or controlling

Drive capability

Holdup

House arrest system, wandering, or wrong place

Incontinence or enuresis alarm

Nondomestic animal (e.g., for hunting, fishing, or repelling)

Posture alarm

Sleep

Water safety alarm

Ice formation

Photoelectric

Thermal

Vibratory

Intrusion detection

Disturbance of electric field

Capacitance

Fence

With bridge

Disturbance of electromagnetic waves

Doppler effect

Light

Beam

Laser

Standing waves

Disturbance of fluid pressure

Disturbance of magnetic field

Door or window movement

Door, cover, or lid for self-contained article (e.g., refrigerator, mailbox, drawer, cabinet, or box)

Plural doors or windows

Portable

Specified door or window attachment (e.g., shade or blind)

Specified door or window portion (e.g., doorknob)

Specified sensor

Inertia-type sensor (e.g., mercury or pendulum switch)

Magnetic sensor

Plug or cord tension sensor

Rotatable sensor

Sensing of electrical parameter (e.g., piezoelectricity or capacitance)

Sensing of electromagnetic energy (e.g., light, infrared, or microwave)

Lock

Permutation

Partition penetration

Responsive to intruder energy

Electromagnetic energy

Vibration

Machine condition

Agricultural

Bearing

Cranes

Machine tool

Synchronization

Vibration

Meteorological condition

Moisture or humidity (e.g., rain)

Of geometrical gauge

Position responsive

Alignment or misalignment

Connected or disconnected

Geophysical (e.g., fault slip)

Meter dial

One article inserted into another

Proximity or distance

Shaft or rotary element

Tilt

Workpiece

Radiant energy

Thermal

Current modifier or generator

Barrier-layer sensor

Bridge circuit

Cable or elongated probe

Curie point sensor

Expanding fluid sensor

False alarm resistant

Fusible, frangible, or destructible sensor

Containing pressurized fluid

Portable

Refrigerated storage

Switch sensor

With bimetallic element

Time-temperature relationship (e.g., overtemperature exceeds predetermined interval or time-temperature integral)

Rate of temperature change

Velocity

Angular

Direction of shaft rotation

Specified housing

Configured to promote sensing capability (e.g., smoke detector)

Inserted battery required for housing closure

Having specified mounting structure

To wall or ceiling

Within another housing

Simulation

Specified indicator structure

Control circuit detail

Degree or urgency

Information display

Mechanical

Plural

Diverse

Simulated effect

Sound reproducer

Specified power supply

Having reduced power consumption (e.g., intermittent power)

Having specified voltage regulator

Substitute or emergency source (e.g., back-up battery)

With particular coupling link

Having particular safety function

Radio

Having plural distinct sensors (i.e., for surrounding conditions)

Diagnostic

Including video

Proximity

Including central station detail

And remote station detail

Dispatching

Programmable

Map

Signal strength

Including location of misplaced item

Including personal portable device

Medical

Tracking location (e.g., gps, etc.)

Including power saving

Including remote residential device

Parent/child device

Including tamper resistant device

Specific environmental sensor

Dosimeter

Heat

Weather

Wired

Coded message

Mechanical code means (e.g., coded disc)

Combined with power line

Bi-directional (e.g., with transceiver)

Impedance matching (e.g., y-match or delta match)

Modulation technique

Noise reduction (e.g., filtering)

Zero crossing

With coupling plug

With inductive coupling (e.g., transformer or torroid)

Noninterfering

With impedance level coding

With particular system function (e.g., temperature compensation, calibration)

Acknowledgement

With ringback

Alarm system supervision

Bridge or potential divider

Diode

Fail-safe

Plural or diverse current sources

Pulse

Redundant (e.g., added circuit or loop)

Threshold or window (e.g., of analog electrical level)

Answer-back

Interrogator-responder

Predetermined rate of occurrence

Selection from a plurality of sensed conditions

Condition position indicator

Display board

First sensed exclusively indicated

Particular sequence of conditions

Plural diverse conditions

Combined for response

Scanning

Worst condition

Testing

Automatic (e.g., periodic, start-up)

Simulation of condition

Time delay

Condition persistence

Capacitor

Entrance/exit

Continuously variable indicating (e.g., telemetering)

Combined (tm system with other system)

Radio dial

With alarm or annunciator (concurrent with tm)

Condition responsive

Temperature

For radio sonde

Frequency variation

Phase variation

Plural circuits, each for particular magnitude

Plural transmitters

Frequency division multiplex

Time division multiplex

Using particular sync

With plural receiver

Using a particular modulation (e.g., phase, frequency, or amplitude)

Pulse

Analog to digital function converter

Increase pulses plus decrease pulses

Permutation code

Pulse duration (e.g., pulse train)

Pulse repetition

Via radiant energy beam (via particular energy)

Photoelectric cell pickup

With calculation

Plural transmitters (e.g., ratio)

With calibration

With meter reading

Having plural transmitters

With particular receiver (e.g., ratiometer)

Plural receivers

With discharge device (e.g., crt)

With feedback (e.g., reflex along line)

Follow-up (e.g., circuit rebalanced when upset)

With particular transmitter (e.g., piezoelectric, dynamo)

Capacitive transmitter

Inductive transmitter

Mutual inductance

Differential type

Linear variable differential transformer (lvdt)

Flux valve type (e.g., with movable saturating magnet)

Self-synchronous type

Resistive transmitter

With supply voltage regulation or compensation

Digital comparator systems

External condition vehicle-mounted indicator or alarm

Highway information (e.g., weather, speed limits, etc.)

Transmitter in another vehicle (e.g., emergency vehicle)

Relative distence between vehicles (e.g., collision alert)

Transmitter in one vehicle only

Land vehicle alarm or indicator (340/425.5)

Land vehicle alarms or indicators

Electromagnetically actuated mechanical signal

Normally encased

Plural concurrent indicators

Sliding sign or shutter

Window exhibited sign or shutter

Drum

Pivoting

Multiple indicators

Three or more positions

Vertical axis

Wigwag type

External alarm or indicator of movement

Acceleration or deceleration

Plural indications (e.g., go, slow, stop)

Speed

Turning or steering

External signal light system

Brake light

Hazard warning or distress signalling

Auxiliary signal permanently attached to vehicle

Portable signal

Pass - no pass

Turn signal

With automatic cancelling

By predetermined time interval or distance

With plural bulbs sequentially flashed

With audible signal

With two or more intensity levels (e.g., day or night)

For bicycle

For school bus

For taxi

For trailer

Internal alarm or indicator responsive to a condition of the vehicle

Battery charging system condition

Brake or clutch condition

Wear

Fluid level

Of fuel

Of hydraulic brake fluid

Of lubricant (e.g., engine oil)

Fluid pressure

Of brake fluid

Gear position

Lamp or lamp circuit condition

Operation efficiency (e.g., engine performance, driver habits)

Plural conditions

With particular display means

Digital

With voice warning

Reminder

Of headlight energization

Of parking brake application

Of seat belt application

Of service interval expiration

Speed of vehicle, engine, or power train

Temperature

Tilt, imbalance, or overload

Tire deflation or inflation

By indirect detection means (e.g., height measurement)

Relative wheel speed

With particular telemetric coupling

Acoustic wave

Inductive

Radio wave

Of burglary or unauthorized use

Including immobilization

User activated (e.g., car-jacking, etc.)

Including keyless entry

Including programmable key

Including specified sensor

Accessory (e.g., speaker, radio face plate, etc.)

Brake

Detecting intruder energy (e.g., infrared, etc.)

Door or lock

Ignition switch

Plural diverse sensors

Steering wheel

Trunk or hood

Wheel/tire

Window (i.e., glass)

Local indication

Exterior of vehicle

Of motorcycles or bicycles

Remote alarm

Cellular

Paging

Using gps (i.e., location)

Remote control

Programmable

Status indication

Transmitter and receiver in vehicle

Transmitter on user

Responsive to changes in voltage or current in a vehicle electrical system

Responsive to inertia, vibration, or tilt

With entrance/exit time delay

Of collision or contact with external object

Curb

Of relative distance from an obstacle

Miscellaneous

Override of traffic control indicator by command transmitter

Pedestrian guidance

Remote control over power line

Bi-directional (e.g., with transceiver)

Impedance matching (e.g., y-match or delta match)

Modulation technique

Noise reduction (e.g., filtering)

Zero crossing

With coupling plug

With inductive coupling (e.g., transformer or torroid)

Repeater in unspecified type communications line or channel (e.g., relay station)

Power control

Selective (340/825)

Selective (340/825)

Having indication or alarm (e.g., location indication) (340/825.36)

Selective

Addressing

Plural part (e.g., digit) or repetitions

Amplitude responsive actuation

Divided resistor

Audio system (e.g., by pulse signal)

Communication or control for the handicapped

Decoder matrix

Bistable crosspoint

Logic crosspoint

Plural stage

Programmable

Having fusible element

Semiconductor crosspoint

Integrated circuit

Semiconductor diode

Charge storage

Plural diodes at crosspoint

Switching element

Transistor

Field effect transistor

Four or more electrode type

Plural transistors in element

Frequency responsive actuation

Plural frequencies

Corresponding to distinct functions

Permutation

Simultaneous

Wireless link

Having electron beam device

Having indication or alarm (e.g., location indication)

Additional to other selective control

Code responsive (i.e., paging)

Addressing format

Group call

News information provider (e.g., sports, weather, etc.)

Source address

Tone code (i.e., frequency code)

Alert

Audible

Priority alert

Vibratory (i.e., tactual) alarm

Visual

Distress signal

Frequency scanning for address

Housing detail

Message presentation

Audible

Canned message (audible or visual)

Display

Including graphics

Storing or retrieving message (e.g., received message database handling)

Via externally coupled device

Paging terminal (i.e., element prior to the transmitter)

Message input

Queuing

Terminal connected to other network (e.g., internet)

Particular message and address format (e.g., pocsag, flex, etc.)

Having error detection or correction

Power control or battery saving

Based on received signal

Address based

Frame based timing

Received signal includes power command

Control based upon available power

Time based

Programming the receiver

Over the air

Via local device

Transmitting configuration

Multiple transmitters

Simulcast

Zoned

Two-way paging

Acknowledgment of message receipt

Including reply to query

Location indication

Paging to control diverse device

Party line

Amplitude or polarity controlled

Selection by means of frequency

Selector or indicator, per se

Step-by-step impulse

Polarity controlled

Intelligence comparison for controlling

Authentication (e.g., identity)

Document authentication

Personal identification

Biometrics

Image (fingerprint, face)

Voice

Password

Authorization control (e.g., entry into an area)

Access barrier

Garage door

Lockbox

Vehicle door

Access to electrical information

Coded record input (e.g., ic card or key)

Electronic coded record

Magnetic coded record

Mechanical coded record

Wireless transceiver

Including manual switching means

Including timing means (e.g., clock)

Wireless transmitter

Credit

Banking or finance

Debiting (e.g., rental)

Having indication of improper access

Including link to remote indicator

Lockout or disable

Visual indication

Input from central location for plural controlled devices

Manual code input

Biometrics

Image (e.g., fingerprint, face)

Password

Rotary input

Timed access blocking

Varying authorization

Code programming

Programming from coded record to controller

Using additional record or carrier code

Programming of coded record

Code rotating or scrambling

Rule based input

Commodity (e.g., vending)

Including merchandise information display system (e.g., store price display)

Item inventorying

Interrogation response

Additional control

Programming (e.g., read/write)

Id code

Contention avoidance

Interrogation signal detail

Group call

Individual call

Power up

Wake up (all call)

Printout or display

Response signal detail

Combination response

Identification only

Monitoring in addition to control (e.g., supervisory)

Control then monitoring

Control to avoid fault

Electromechanical relay

Fault condition detection

Control to correct fault

Including addressing

Destination address

Pulse counting

Group address

Polling or roll call

Source address

Including indicator

Having manual control input

Including storage or recording

Storage at controlled device or sensor

Storage at controller

Quiescent

Collision avoidance

Scanning

Continuous

Interrupted

Automatic

Synchronization

Electromechanical (e.g., relay, rotary distributor)

Relay chain

Step-by-step

Time slot or packet

Path selection

Channel selecting matrix

Crosspoint switch detail (i.e., specific crosspoint)

Gas discharge

Semiconductor

Folded

Having master control element

Plural matrices

Plural stages

Alternate routing

Clos type

Having master control element

Code or pulse responsive

Condition of data channel

Hunting

Data channel selector line

Plural stages

Wiper

Phase responsive actuation

Program control

Machine tool

Of audio system

Pulse responsive actuation

Having delay line

Phase or frequency shift keying

Polarity

Pulse pairs

Serial

Counting

Counting chain

Relay

Pulse spacing (e.g., pulse repetition rate)

Pulse width

Radio link

Shift register

Space allocation (e.g., vehicle seat, hotel reservation)

Remote terminal

Spare channel

Stock quotation

With information storage

Synchronizing

With addressing

System having rectifier

Tree or cascade

With multidigit encoder

Systems (340/286.01)

Systems

Annunciator

Drop annunciator

Answer back

Noncorrespondence alarm (e.g., if acknowledgement is incorrect)

Audible signals (e.g., bell rings softly first and then loudly)

Intermittent

Call station

Hospital

Hotel

Restaurant

Game reporting

Bowling

In and out indicators (e.g., doorbell button flashes "out" sign)

Manual alarm telegraph; e.g., other than signal box type

Fire

Mimic

Mapping

Network signaling

Speaking tube including circuit

Nonselective paging (e.g., public address system)

Periodic or flashing

Plural (e.g., concurrent auxiliary) single indications (e.g., light flashes when bell rings)

With sounder signal cut-off

Plural electromagnets or plural motors receiver

Portable self-contained (e.g., movie usher's signalling flashlight)

Rebalancing at receiver

Automatic rebalancing

Self-cancelling after fixed time

Selsyn type

Signal box type (e.g., to call messenger, plural fire alarm boxes)

Circuit maintenance (e.g., fault alarm, faulty circuit substitution)

Combined (e.g., alarm circuit over power line)

Engine house apparatus controlling (e.g., releases horses, starts motor)

With fire extinguisher (e.g., co2)

False alarm combating (e.g., detention devices)

Frangible element must be broken to send signal

Local circuit to actuate box

Watchman's local circuit

Noninterfering (prevents break-in by another box during transmission)

Key obstruction type

Portable box actuating key (e.g., key must be released by signal from central)

Frangible guard or protector for key

Repeaters (e.g., from central to plural fire houses or to siren)

Transmitters

Controlled by door of signal box

With make and break wheel

Variable signal (e.g., police and fire, first and third alarm)

Dial selector for variable signal

With signal at box (e.g., preliminary signal to combat false alarms)

Answer back signal acknowledges transmitted signal

Lamp at box (e.g., to call patrolman)

Simultaneous (e.g., actuated by transmitted signal)

Signal light systems

Synchronous distributor at transmitter and receiver

Timer control

Circuit maker-breaker in series

Reminder device with built-in timer

Selectively or sequentially actuated indicators

With independent manual controller

Separate diverse device activated by timer

Separate diverse device deactivated by timer

With diversely controlled indicator

With nonelectrical indicator or exhibitor

Via fluid conduit (e.g., fire hose)

With specific power supply (e.g., power substitution)

Tactual indication

With input means (e.g., keyboard)

Traffic control indicator

Combined (e.g., toll systems, one-way)

Indication of time remaining before change of phase

Electromechanical movable auxiliary indicator

Intersection normally under local controller

Controller responsive to traffic detectors

Controller, when changing right of way, alters or skips normal "go" cycle of street having no traffic detected

Density determines split

Extension of time

Plural cross highways at intersection each have traffic detectors

Density determines split

Extension of time

Local controller can be superceded by central station controller

Manual setting of cycle length and split times

Pedestrian control

Rotating cam structure (specific structure required)

Pacing (e.g., vehicle keeps pace with sequentially activated lights)

Pivoted

Plural intersections under common central station control

Central station includes display of status of indicators

Central station responsive to traffic detectors

Central station controls offset (time between beginning of same phase at adjacent intersections)

Offset control

Split control

Standby cycling implemented if invalid transmission received or loss of transmission occurs

Portable

Barricade marker

Traffic control or local controller failure indicator

Underwater

Electrodes and electrode systems

Ship guidance system

Vehicle detectors

Compensation for vehicle remaining at sensor position

Density

Discriminates vehicle direction

Environmental or drift compensation

Inductive

Photoelectric

Sonic or ultrasonic

Speed and overspeed

With camera

With pneumatic

Vehicle parking indicators

Vehicle position indication (340/988)

Vehicle position indication

At remote location

Position indication transmitted at periodic intervals (e.g., distance travelled)

Position indication transmitted by local station to remote location

Position indication transmitted by vehicle after receipt of information from local station

Vehicle's arrival or expected arrival at remote location along route indicated at that remote location (e.g., bus arrival systems)

With map display

Map display

Having plural maps

Including landmark information

Including particular display feature (e.g., indication of direction, mileage, road type, etc.)

Including particular display structure (e.g., detachable, rolling map sheet, etc.)

Including particular position/direction sensor

Including vehicle position correction

Manipulation of map display or data

Having adjustable map (e.g., scalable, etc.)

Display change based on vehicle position

Input device

Particular data storage

Route determination and display on map

Intersection turn guidance

Off course, route re-search

Pattern matching

Specifying particular start/destination

Transmission of map data to vehicle

Traffic information

Prerecorded message describes position

Visual indication

Audio responsive lamp

Binary indicator

Diverse indications

Having percussion type indication (e.g., electric bells, chimes)

Electromagnetic

Having pneumatic type indication

Electromagnetic actuator for indicator matrix

Electromagnetic rotator for indicator wheel

False signal prevention (anti-sunlight)

Grouped drop annunciators

Support

Having light piping

With specified colors

Lighted alphanumeric or character indicator matrix

Having optical means in viewing path

Movable

By electromagnetically releasable latch

Gravity operated drop annunciator

Having restoring means

Circuit closing type

Rotary

Rotor driven

Vane indicator

Self restoring type annunciator

Semaphore

Multiple colors

By light signal

Plural

With movable optical means

Pointer indicator

Annunciator

Having electromagnetically releasable latch

Seven-segment indicator

Step by step positioner

Drum indicator

Having resetting device

Remote controller

Switchboard or panel type (e.g., bullseye)

Housing

Including optical means

Including spring

Pushbutton

With details of energizing circuit

Transparent or translucent indicator with means for blocking light

Color

Having optical device

Using light emitting diodes

With lamp enclosed in transparent housing

Combined

Light source modifier

Lens type

Relatively movable light source

Watercraft alarm or indicating systems

Anchor movement

Navigation guides (e.g., channel lights)

Rudder position indicator

Wellbore telemetering or control (e.g., subsurface tool guidance, data transfer, etc.)

Diagnostic monitoring or detecting operation of communications equipment or signal

In horizontal or inclined passage arrangement

Including detail of subsurface signal storage (e.g., memory, recorder, register, etc.)

Including particular sensor

Acoustic or vibratory (e.g., sonic, fluidic, etc.)

Including specified power transmission feature or source (e.g., battery, etc.)

Specified alternating current (a.c.) circuit feature

Modification of signal bandwidth, frequency, or circuit impedance at subsurface location

Multiplexed signals

Pulse or digital signal transmission

Digital signal processing in subsurface transmitter

Having acoustic sensor

Repeater in subsurface link (e.g., cable, etc.)

Selective control of subsurface equipment

Control of drill bit or apparatus (e.g., steering, speed, etc.)

In horizontal or inclined drilling or passage

Control of drilling apparatus using magnetic field

Using a specific transmission medium (e.g., conductive fluid, annular spacing, etc.)

Cable or wire (e.g., conductor as support, etc.)

Coupling connection structural feature

Single conductor cable or wire

Drill string or tubing support signal conduction

Electromagnetic energy (e.g., radio frequency, etc.)

Near field coupling (e.g., inductive, capacitive, etc.)

Optical link (e.g., waveguide, etc.)

Wellbore casing or ground

With expandable or inflatable sensor element or mounting

With orientation sensing of subsurface telemetering equipment (other than drilling equipment)

With position or depth recording (e.g., line payout, equipment locator, etc.)

Location of collar or stuck tool