Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Communications
Class Information
Number: 367/114
Name: Communications, electrical: acoustic wave systems and devices > Echo systems > Distance or direction finding > With indicator > Meter
Description: Subject matter in which the display device is a meter of the moving coil type having a coil which pivots between permanent magnets, e.g., a volt meter or ammeter.










Patents under this class:

Patent Number Title Of Patent Date Issued
4420727 Self oscillating acoustic displacement detector Dec. 13, 1983
4323992 Depth sounder repeater structure and method Apr. 6, 1982
4285053 Acoustic method and apparatus for measuring micron and submicron distances Aug. 18, 1981
4221004 Adjustable ultrasonic level measurement device Sep. 2, 1980
4210970 Echo sounders Jul. 1, 1980
4175441 Gauge for measuring distance to planar surfaces and thicknesses of planar members Nov. 27, 1979
4068207 Acoustic log Jan. 10, 1978
3991398 Acoustic log Nov. 9, 1976
3976969 Underwater sound wave direction finding system Aug. 24, 1976
3934219 Acoustic method and apparatus for determining effectiveness of mine passage seal Jan. 20, 1976











 
 
  Recently Added Patents
Photosensitive quantum dot, composition comprising the same and method of forming quantum dot-containing pattern using the composition
Oil transport pipes
Method for thickening a cosmetic formulation using an alkali swellable emulsion of a polymer with AMPS and which is rich in acrylic acid
Work transfer apparatus for press machine, and work transfer unit
Method and apparatus for paging in machine to machine or mobile assisted deployments
Crosstalk polarity reversal and cancellation through substrate material tuning
Method and system to proxy phone directories
  Randomly Featured Patents
Combination weighing apparatus with improved flow of articles
Sole incorporable into plaster cast bandages for the foot
Disposable cutting board
Edge and line detection in multidimensional noisy, imagery data
Electric toothbrush
Rotary blade-type apparatus for dissolving alloy elements and dispersing gas in an aluminum bath
Plumbing control
Magnetoresistive magnetic head having a shunt film of Nb
Electrodes with adjustable gas permeability, and method of producing such electrodes
Wristwatch