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Class 251/183 - Encased


Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter wherein the spring is enclosed by the valve
No. of patents: 12
Last issue date: 03/25/2008


NumberTitleIssue Date
7347406Shut-off valve and method of shutting off opening of vacuum chamber
A shut-off valve disposed between openings formed to a vacuum chamber includes a casing, a valve body disposed inside the casing and having a shaft rotating around a central axis of the valve body, a drive unit for driving the valve body to rotate the shaft, and an ...
03/25/2008
7322559Plug valve having high flow resolution
The invention relates to a valve with high flow resolution within a flow range, which valve comprises a valve housing and a valve plug, whereby the valve plug comprises a cavity and a flow regulating slit which in cooperation with the valve housing forms a flow pass...
01/29/2008
7210668Valve assembly having a pressure balanced segment seal
A plug valve assembly includes a plug and a segment seal assembly. The segment seal assembly is configured to reduce the differential pressure load across the segment seal assembly when the valve is closed. The segment seal includes an opening in fluid communication...
05/01/2007
7131460Automotive coolant control valve
A coolant flow valve for controlling the distribution and flow of coolant to replace the radiator thermostat and heater valve currently used in automotive applications. The valve includes a valve rotor rotationally received in a valve housing wherein the rotational ...
11/07/2006
7017784Dispensing system for ice cream machine
A dispensing system for a tank for mixing and freezing ice cream includes a valve selectively pivotable between a first position, a second position and a third position. Pivoting the valve between the first position, the second position and the third position valve ...
03/28/2006
6845966Gas valve with linear regulation for gas burners
A gas valve with linear regulation for gas burners that comprises a valve body (10), said valve body (10) comprising a gas chamber (15), an inlet conduit (16) and an exit conduit (14) communicating with said gas chamber (15)...
01/25/2005
6520481Linearly regulated gas valve for gas burners
The current invention is a linearly regulated gas valve for a gas burner, utilizing a central plug to control the gas flow. This valve has the capability of providing a smoothly increasing or decreasing gaseous flow between the highest setting and the low...
02/18/2003
5727596Changeover valve
A changeover valve which accommodates thermal transients and is operable over a range of temperatures includes a crossover member (20) and a seat assembly (30) in each outlet passage (15), a thrust bearing (45) rotatably supporting the crossover member an...
03/17/1998
4947891Fuel control device, fuel control system using the device and method of making the device
A fuel control device, system using the device and method of making the same are provided, the device comprising a housing having a passage therethrough for interconnecting a fuel source with a main burner, a throttle valve unit disposed in the passage fo...
08/14/1990
4688756Single seat ball valve with bar spring biasing members
A single metal-seated ball valve can accommodate differential temperature expansion of the components without jamming yet provide tight shutoff in a closed position, and provides tight shutoff even if solids are present in the fluid being valved. The valv...
08/25/1987
4084657Method and apparatus for preventing theft of idling vehicles
A valve positioned in the fuel supply line of a vehicle has two positions selectable by means of a key-operated lock. In the first position, the valve permits full fuel flow allowing the vehicle to operate in its normal manner. In the second position, the...
04/18/1978
3964728Self closing safety gate valve for viscous fluids
A self closing safety gate valve controls the flow of heavy, viscous fluids such as machine oil, rubber cement, lacquer, or the like. The valve housing contains a rotor with a spring biased thrust exerted laterally against the rotor, to hold it--in normal...
06/22/1976
 
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