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Class 137/54 - With multiple valves


Subclass of Class 137 - Fluid handling
Definition: Control systems wherein two or more valves are provided,
No. of patents: 20
Last issue date: 07/24/2007


NumberTitleIssue Date
7247486Method and apparatus for controlling reactions
The invention relates to a method and an apparatus for performing an assay on chemical, biochemical, or biological fluids. The apparatus includes an assay chamber for fluid reactions and a centrifugal force activated-valve for controlling fluid movement through the ...
07/24/2007
7175119Apparatus and method for shredding wet chip materials
A shredder apparatus and method for shredding wet chip materials in which the shredder utilizes a shredder mechanism having a shaft attached to a frame, a bearing assembly disposed on the shaft, and a rotatable rotor disposed on the bearing assembly. First shredder ...
02/13/2007
7051750Governor spring bracket assembly
A governor spring bracket assembly that attaches to an exterior surface of a shaft-mounted governor valve assembly for an automatic transmission is disclosed. The present governor spring bracket assembly functions to counterbalance the effect of centrifugal force on...
05/30/2006
7047951Centrifugally operated evaporative emissions control valve system for internal combustion engines
An evaporative emissions control system for small internal combustion engines. A control valve assembly includes a pair of control valves which are respectively associated with a fuel line and with a vent line which each connect the fuel tank and the carburetor of t...
05/23/2006
7028935Apparatus and method for shredding wet chip materials
A shredder apparatus and method for shredding wet chip materials in which the shredder utilizes a shredder mechanism having a shaft attached to a frame, a bearing assembly disposed on the shaft, and a rotatable rotor disposed on the bearing assembly. First shredder ...
04/18/2006
5398713Centrifugal valve
A valve which controls the movement of pressurized fluid through a passage, the regulation of which is determined by the application of a centrifugal force generated by the rotation of the valve about a fixed axis...
03/21/1995
4628952Governor valve assembly
A governor valve assembly for regulating hydraulic pressure by utilizing centrifugal force developed by the output shaft of a vehicle transmission when the output shaft is rotated has a first governor valve adapted for two-stage pressure regulation and a ...
12/16/1986
4570691Tire pressure regulation system
A vehicle wheel-tire assembly wherein the tire has a low inflation pressure (large tire footprint) in a low vehicle speed range, and a large inflation pressure (small tire footprint) in a high vehicle speed range. The tire is partitioned into a series of ...
02/18/1986
4465443Pneumatic power tool with speed governor and overspeed safety device
In a pneumatically powered portable tool there is provided a speed governor and an overspeed safety device the purpose of which are to ensure a predetermined maximum speed by controlling the air inlet flow to the motor. A cup-shaped shell insert (28) is d...
08/14/1984
4424826Flyweight governor
A governor control valve is provided in which governor output pressure is varied in response to variations in vehicle speed by moving a valve member radially with respect to a ported shaft carried with a driven housing which drivingly carries a centrifuga...
01/10/1984
4417884Centrifuge timer clamp
A timing and control mechanism for a centrifuge comprising a piston to which is attached a cam having cam surfaces which interact with flexible tubing to control the rate of flow through the tubing. The velocity of the piston in the centrifugal force fiel...
11/29/1983
4284096Automatic transmission governor having deceleration sensitive pressure switching feature
A fluid pressure governor adapted to sense the driven speed of an automatic transmission torque output shaft and to develop a speed signal that may be used by an automatic transmission control circuit in conjunction with a torque demand or engine torque s...
08/18/1981
4259978Hydraulic regulator for generation of a driving speed-dependent pressure
A regulating device is comprised of a shaft which is driven at a speed of revolution proportional to the speed of an automobile, and a duct provided in the shaft and connected for fluid transmission from a pressurized fluid source and the control means fo...
04/07/1981
4194518Governor having ability of removing dust from working fluid in automatic transmission
A governor is disclosed in which dust which may comprise steel powder, fine particles of sand and so on will be removed from a hydraulic working fluid by subjecting the working fluid to centrifugal force. A fluid passage for the working fluid is formed in...
03/25/1980
4194520Two stage hydraulic governor
A pair of piston valve members are slidably mounted in a housing rotatably engaging the output shaft of the automatic transmission. A first piston valve moves freely under the influence of centrifugal force within the housing to throttle line pressure fro...
03/25/1980
4181138Governor valve assembly for automatic transmission units
A governor valve assembly is disclosed for automatic transmission units including first and second valve members which are provided in a rotating governor body so as to be telescopically fitted together. The first and second valve members are arranged on ...
01/01/1980
4164235Governor for controlling hydraulic transmission
A governor for controlling a hydraulic transmission including a housing, a flyweight assembly rotatable within the housing, an axially movable hydraulic transmission control valve within the housing connected to the flyweight assembly for axial movement i...
08/14/1979
4082103Centrifugal force hydraulic governor
Hydraulic governor having two centrifugal force controlled valves connected to a transmission output shaft. A relay valve is attached to the transmission case and connected hydraulically to the governor. Line pressure fluid supplied to the relay valve is ...
04/04/1978
4033368Governor pressure control apparatus for vehicle automatic transmission
The invention relates to a governor pressure controlling apparatus for vehicle transmissions including a governor pressure generator mounted on a rotational shaft for generating a governor pressure and provided with inlet and outlet ports, a governor pres...
07/05/1977
3939856Rotational speed responsive type fluid pressure signal control valve
A rotational speed responsive type fluid pressure signal control valve comprises a plurality of fly weights rotated by a drive shaft, a sleeve operated by the fly weights, fluid passages provided in the valve and valve bodies actuated by the sleeve so as ...
02/24/1976
 
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