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Class Information
Number: 340/672
Name: Communications: electrical > Condition responsive indicating system > Specific condition > Velocity > Angular > Direction of shaft rotation
Description: Subject matter wherein the monitored angular velocity is characterized by direction of rotation of a shaft.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7460010 |
System for detecting the rotational motion of a shaft |
Dec. 2, 2008 |
| 7340370 |
Resolver signal processing device |
Mar. 4, 2008 |
| 7205761 |
Rotation state detecting device and rotation state detecting method |
Apr. 17, 2007 |
| 7132954 |
Self monitoring pool cover system |
Nov. 7, 2006 |
| 7123998 |
Automated transmission systems |
Oct. 17, 2006 |
| 7113104 |
Giant magnetoresistance based gyroscope |
Sep. 26, 2006 |
| 7084755 |
Method and device for monitoring the region of technical rolling bodies |
Aug. 1, 2006 |
| 6940399 |
Tire air pressure detection device for detecting air pressure based on vehicle speed signal |
Sep. 6, 2005 |
| 6859139 |
Control apparatus for controlling motor drive |
Feb. 22, 2005 |
| 6768418 |
Tire air pressure detection device for detecting air pressure based on vehicle speed signal |
Jul. 27, 2004 |
| 6747553 |
Apparatus for detecting rotational state of wheel |
Jun. 8, 2004 |
| 6741170 |
Apparatus for monitoring rotation of an object about an axis |
May. 25, 2004 |
| 6737979 |
Micromechanical shock sensor |
May. 18, 2004 |
| 6693548 |
Structural monitoring system for helicopter rotor components |
Feb. 17, 2004 |
| 6690285 |
Agricultural implement component rotation alarm |
Feb. 10, 2004 |
| 6441745 |
Golf club swing path, speed and grip pressure monitor |
Aug. 27, 2002 |
| 6323779 |
Displacement sensing apparatus |
Nov. 27, 2001 |
| 6304190 |
Method for determining the absolute angular position of the steering wheel of a motor vehicle, and optoelecronic steering angle sensor |
Oct. 16, 2001 |
| 6242905 |
Method for identifying the direction of rotation of a wheel using hall probes |
Jun. 5, 2001 |
| 6229299 |
System and method for computing the angular velocity and direction of a rotational body |
May. 8, 2001 |
| 6208131 |
Electronic position and speed sensing device |
Mar. 27, 2001 |
| 6181235 |
Rotary apparatus |
Jan. 30, 2001 |
| 6058358 |
Device for direction of rotation recognition and plausibility testing in absolute angular position measuring devices especially with serial transmission of actual positions detected |
May. 2, 2000 |
| 6044791 |
Apparatus for determining the position of a rotary valve |
Apr. 4, 2000 |
| 6002338 |
Method and system for detecting failures in self-exciting sensor |
Dec. 14, 1999 |
| 5986559 |
Infinitely adjustable position sensor with visual confirmation |
Nov. 16, 1999 |
| 5982279 |
Tire air pressure detecting device |
Nov. 9, 1999 |
| 5977765 |
Speed, direction, and acceleration sensor for a rotating shaft having a rotor with teeth having unequal spacing |
Nov. 2, 1999 |
| 5644224 |
Dual brushless resolver rate sensor |
Jul. 1, 1997 |
| 5610577 |
Automobile front-wheel orientation and turning-angle indicator |
Mar. 11, 1997 |
| 5523679 |
Apparatus for detecting speed and direction of rotation with a single magnetic sensor |
Jun. 4, 1996 |
| 5500585 |
Device for detecting the speed and direction of a movable component using a single signal line |
Mar. 19, 1996 |
| 5471202 |
Rotation sensing device for detecting a fine displacement of a handle and control system in electrical power steering device |
Nov. 28, 1995 |
| 5446376 |
Sensing motor speed and rotation direction |
Aug. 29, 1995 |
| 5428964 |
Control for air quality machine |
Jul. 4, 1995 |
| 5371460 |
Speed and direction sensor for a rotating shaft having a rotor with teeth of alternating widths |
Dec. 6, 1994 |
| 5345171 |
Apparatus including a selectively connectable isolation transformer for determining the speed and direction of a rotating object |
Sep. 6, 1994 |
| 5287742 |
Device for detecting defects of web |
Feb. 22, 1994 |
| 5264789 |
Method of determining the direction of rotation of a member using a rotor having a predetermined pattern of exciter surfaces |
Nov. 23, 1993 |
| 5248939 |
Apparatus for sensing the direction and speed of a steering wheel shaft using Hall effect sensors in a detachable sensor mounting |
Sep. 28, 1993 |
| 5132665 |
Hub-mounted vehicle back-up alarm |
Jul. 21, 1992 |
| 5086272 |
Apparatus for distinguishing between opposed directions of relative motion of a part having magnetic variations |
Feb. 4, 1992 |
| 5083109 |
Rotating source verification device |
Jan. 21, 1992 |
| 5008647 |
Wireless bicycle wheel monitor system |
Apr. 16, 1991 |
| 4972332 |
Apparatus for determining the speed, angular position and direction of rotation of a rotatable shaft |
Nov. 20, 1990 |
| 4939756 |
Two-phase encoder circuit |
Jul. 3, 1990 |
| 4887479 |
Ball cage for helical ballspline |
Dec. 19, 1989 |
| 4864230 |
Processing quadrature signals |
Sep. 5, 1989 |
| 4794380 |
Means and method for determining the rotation direction of an oil well pumping unit crank arm |
Dec. 27, 1988 |
| 4758787 |
Processing quadrature signals |
Jul. 19, 1988 |
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