U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Did You Know...

...In 1790, the cost to obtain a patent was between $4 and $5.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 702/142 - Speed


Subclass of Class 702 - Data processing: measuring, calibrating, or testing
Definition: Subject matter comprising means for determining a change
No. of patents: 289
Last issue date: 11/01/2011


              8  
NumberTitleIssue Date
4248085Measurement of relative velocities
An apparatus and method for measuring the velocity of a relative movement between first and second bodies or between a first body and a fluid. The first body may be stationary and the second body a moving body, such as hot strip steel. Alternatively, the ...
02/03/1981
4236215Vehicular data handling and control system
An onboard unit consisting of a tape recorder, and associated data handling components utilized to provide records of vehicular operating information including speed, distance, power level, braking level, traction motor current and other control events. E...
11/25/1980
4201083Velocity detecting apparatus
Noise signals from a relatively moving object, such as those caused by eddies in a fluid or by protrusions and recesses or gradation on the surface of paper or an iron plate, are sensed at two or more points spaced in the direction of the motion. A differ...
05/06/1980
4163941Video speed analyzer of golf club swing or the like
A video device and method for analyzing golf club swings or the like includes means for detecting the golf club swing and calculating the resultant velocity of the club head. The velocity is then displayed on a display device in either a digital or analog...
08/07/1979
4128888Velocity control arrangement for a computer-controlled oil drilling rig
A computer - controlled oil drilling rig is characterized by apparatus for comparing signals representative of the actual velocity and direction of travel of a traveling block with signals representative of predetermined minimum and maximum velocities of ...
12/05/1978
4031373Velocity computing chronograph
A velocity computing chronograph includes a chain of BCD counter stages having a clock input signal gated via the outputs from a pair of spaced apart photo-electric screens for measuring the time of flight of a bullet between the screens. BCD coded numeri...
06/21/1977
4018197Spark ignition systems for internal combustion engines
A spark ignition system for a vehicle has a memory device receiving inputs representing engine parameters and producing an output representing the crankshaft position at which a spark is to be produced. This output is compared with a signal representing t...
04/19/1977
3956617System for indicating when maximum material speed for a predetermined board length is exceeded in a corrugator cut-off machine
A system for limiting maximum material speed for predetermined board length in a corrugator cut-off machine provides an output pulse for each increment of material movement. A divide circuit is connected to the pulse generating means and there are a plura...
05/11/1976
              8  
 
Sign InRegister
Username  
Password   
forgot password?