Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Browse by Category: Main > Engineering
Class Information
Number: 137/53
Name: Fluid handling > Speed responsive valve control > Centrifugal mass type (exclusive of liquid)
Description: Control systems wherein the speed responsive means comprises a rotating or revolving weight or weights, the position assumed by such weight or weights due to centrifugal force varying as a function of the speed at which they are rotated or revolved.










Sub-classes under this class:

Class Number Class Name Patents
137/57 Excess speed responsive 17
137/55 Periodically actuated valve 5
137/56 Rotating valve and rotating governor 40
137/58 With fluid servo-motor 7
137/54 With multiple valves 15


Patents under this class:

Patent Number Title Of Patent Date Issued
7247486 Method and apparatus for controlling reactions Jul. 24, 2007
7051750 Governor spring bracket assembly May. 30, 2006
6899514 Overspeed safety device May. 31, 2005
6179552 Speed control unit for a pneumatic rotation motor Jan. 30, 2001
5291086 Electrical actuator for valve or other device Mar. 1, 1994
4772186 Automatic fluid torque responsive shut-off mechanism for an air tool Sep. 20, 1988
4586884 Pneumatic power tool with speed governor May. 6, 1986
4443164 Secondary speed sensor for governed air grinders Apr. 17, 1984
4425931 Speed bias fluid pressure regulator and systems utilizing same Jan. 17, 1984
4417884 Centrifuge timer clamp Nov. 29, 1983
4389991 Rotation sensitive pressure regulator Jun. 28, 1983
4368004 Apparatus for preventing a turbine from exceeding a predetermined value of a monitored physical magnitude Jan. 11, 1983
4133060 Odorless toilet Jan. 9, 1979
4057113 Pneumatically powered hand tool with speed-control governor Nov. 8, 1977
3942422 Roof ventilator Mar. 9, 1976
3939856 Rotational speed responsive type fluid pressure signal control valve Feb. 24, 1976











 
 
  Recently Added Patents
Ventilated vacuum commutation structure
Method of providing tailor-made software for hospital departments
Non-visual presentation of information on an electronic wireless device
Apparatus and method for image encoding/decoding using predictability of intra-prediction mode
Treatment of cancer using the sodium salt of a benzoic acid derivative
Passive charge cord release system for an electric vehicle
Dithering method and apparatus
  Randomly Featured Patents
Convenient "drop-down" respirator
Non-contact connector
Method for reducing shrinkage during firing of ceramic bodies
Process for preparing bis(hydroxymethyl)perylenetetracarboximide
Method and apparatus for value-based queuing of telephone calls
Spiral formed flexible fluid containment vessel
Baling and strapping machine with strap capturing and deflection apparatus and method therefor
Movable barrier operator system display method and apparatus
Network station suitable for identifying and prioritizing network adapters
Method and apparatus for coating a complex object and composite comprising the coated object