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Class 251/48 - Dashpot or fluid controlled retarder or timer


Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter in which the valve is provided with a fluid
No. of patents: 87
Last issue date: 07/12/2011


1      
NumberTitleIssue Date
7975980Adjustable water valve of time-controlled type
An adjustable water valve of time-controlled type consists of an inner shell and a time-controlled apparatus. The time-controlled apparatus is disposed inside the inner shell and includes an elastomer and a push rod. The elastomer is disposed between a support lid a...
07/12/2011
7481414Natural vacuum leak detection device with magnetic damping
A pressure management apparatus (10) includes a housing (30) defining a fluid communication passage between first and second fluid ports (46, 48). A poppet (40) is disposed in the housing and is movable between first and second positions....
01/27/2009
7416030Adjustable time delay for fire suppression system
A mechanical time delay apparatus for creating a time delay between a pneumatic inlet for connection to a source of pressurized gas and a pneumatic outlet includes a primary pneumatic flow path from the inlet to the outlet. A movable gate is associated with the prim...
08/26/2008
7350539Electromagnetic controlled fuel injection apparatus with poppet valve
An electromagnetic controlled fuel injection apparatus has a poppet valve which controls the beginning and end of fuel injection by reciprocation. Inertia force and friction force arising from the reciprocating motion of the poppet valve are utilized effectively to ...
04/01/2008
7232016Fluid damper having continuously variable damping response
An improved damping apparatus that utilizes a fluid having a viscosity that may be varied by the application of an electromagnetic field, such as a magnetorheological fluid or an electrorheological fluid, to provide the damping response. The damping apparatus includ...
06/19/2007
7225770Electromagnetic actuator having inherently decelerating actuation between limits
An electromagnetic valve actuator system for controlling the operation of a valve in an internal combustion engine comprising a valve having a valve stem with a valve head at one end. The valve is reciprocable along the longitudinal central axis of the valve stem to...
06/05/2007
7163162Fuel-injection valve
A fuel-injection valve includes a fuel-injection hole, a valve element and a valve seat for opening and closing the fuel-injection hole, a force-applying member for applying force to the valve element in a direction of motion of the valve element, and a drive unit f...
01/16/2007
7163248Automotive console with adjustable armrest
A center console for an automobile includes an armrest that is selectively adjustable by vehicle occupants to and between a first position wherein the armrest is in a substantially horizontal orientation, and a second position wherein the armrest extends angularly a...
01/16/2007
7143997Plug assembly for a faucet to automatically stop water flow
A plug assembly for a faucet includes a casing adapted for engagement with the faucet, a cylinder securely received in the casing and having an isolator having a tapered through hole defined through the isolator and slits to communicate with the outlets of the cylin...
12/05/2006
7104275Pinch valve
A control valve includes an elastomeric flow tube, a plunger having first and second ends, and a pinch member connected to the first end of the plunger. The pinch member is situated adjacent the flow tube. A reference surface is positioned generally opposite the pin...
09/12/2006
7088209Electromagnetic actuator for operating a final control element
An electromagnetic actuator for operating a final control element has at least one solenoid which is arranged in a housing and acts upon an armature constructed of laminations oriented essentially toward control element. The control element may be a charge cycle val...
08/08/2006
7077380Capacity control drive
A capacity control valve is inserted in a flow path connecting a discharge chamber and a crank chamber of a variable capacity compressor and provided with a valve unit and a drive unit. The valve unit has a valve element for opening/closing the flow path or a valve ...
07/18/2006
7077376Water saver valve
The present invention relates to a valve designed to be in series with a toilet water supply line and the inlet of a toilet tank so that water which is flowing into the tank must flow through the valve. The valve includes a shutoff spool that is actuated by an inten...
07/18/2006
7044023Knob with different gear ratios
A knob adjustment device particularly for adjusting the temperature in valve units for water-heating apparatus. The device comprises a geared transmission interposed between the knob and an operating member of the valve unit in order to transmit a rotary movement to...
05/16/2006
7025327Valve actuation velocity control device
For use in a valve assembly including a housing having an axis and defining an interior, with fluid provided in the housing and substantially filling the housing interior, a valve stem disposed in the housing interior and a piston attached to the valve stem, wherein...
04/11/2006
7001300Replacement solenoid switch valve assembly
A replacement solenoid switch valve assembly for an automatic transmission system is disclosed. The switch valve assembly includes a switch valve member, which acts in conjunction with an interlocking valve disc set. The disc set is configured for reciprocating move...
02/21/2006
6997148Engine valve actuator
An engine valve actuator for an internal combustion engine is provided. The actuator includes a housing having an opening. An adjustment member is disposed in the housing and defines a fluid chamber having a chamber wall. A piston is also disposed in the opening. Th...
02/14/2006
6959907Normally closed solenoid-operated valve
A normally closed solenoid-operated valve is composed of a stationary element provided at one end of a stationary sleeve, a movable element slidably inserted in the sleeve to face the stationary element and provided at an external surface thereof with a communicatio...
11/01/2005
6959906Blow-off valve for a hydraulic dashpot
A blow-off valve for a hydraulic dashpot comprising a fluid charged cylinder (1) and a piston (3) that travels back and forth therein on the end of a piston rod. The piston partitions the cylinder into two compartments (6 & 7) and is prov...
11/01/2005
6957634Engine valve actuator
An engine valve actuator for an internal combustion engine is provided. The engine valve actuator includes a housing having an opening and a first fluid passageway leading to the opening. An adjustment member is disposed in the housing and includes a protrusion that...
10/25/2005
6896236Controlled leakage hydraulic damper
A hydraulic damper cylinder 270 is provided for an electromagnetic actuated internal combustion engine cylinder valve 20. The damper includes a piston 68 slidably mounted within the damper cylinder 270. The piston 68 bifurcates the...
05/24/2005
6883775Passive valve assembly
A passive valve assembly for controlling the flow into or out of chamber (3) through a port (4). The valve assembly comprises a valve element (5) arranged to open in the direction of flow through the port. The valve element (5) has a pist...
04/26/2005
6817592Electromagnetic valve actuator with soft-seating
The electromagnetic valve actuator of the preferred embodiments include a valve head that moves between an open position, a middle position, and a closed position; a plunger coupled to the valve head; and a housing defining a cavity that surrounds the plunger and co...
11/16/2004
6764058Control valve and fuel injection valve provided with same
A control valve and a fuel injection valve provided with same should be produced, in which it is possible to switch from a first operating state to a second operating state inexpensively and with short switching times, without requiring a hydraulic control line. To ...
07/20/2004
6702207Fuel injector control module with unidirectional dampening
Fluid in a chamber, through which a fuel control armature is moving, is used to dampen armature vibrations. This dampening effect is achieved by forming a passage through which the fluid flows as the actuator moves to a steady state position. This passage...
03/09/2004
6681730Hydraulic damper for an electromechanical valve
A hydraulic system for an electromechanical valve is provided. The system includes a housing defining a chamber for holding fluid extending along an axis. The system further includes a damper stem disposed in the chamber configured to move along the axis....
01/27/2004
6557822Dynamically stable flow amplifying poppet valve
A flow amplifying poppet valve is useful in hydraulic circuits requiring low leakage when in a loaded condition. Undesirable pressure fluctuations effect the stability of the poppet. Tilting of the poppet valve within the bore increases friction that degr...
05/06/2003
6474620Method of controlling hydraulically actuated valves and engine using same
The present invention finds application in hydraulically actuated valves, such as gas exchange valves, having a valve member that moves within a valve body between an open position and a closed position. In valves such as these, the valve member typically...
11/05/2002
6302370Valve seating control device with variable area orifice
A system for decelerating a linearly displaceable valve undergoing a closing motion is disclosed. The system includes a housing, a first hydraulic fluid chamber provided in said housing, and a slave piston for displacing the valve in response to the suppl...
10/16/2001
6216673Solenoid valve incorporating a chamber
An apparatus for suppressing the purge of the evaporated fuel gas in the prior art has a chamber in the middle of the piping connecting between the input port and an external apparatus, for reducing the pulsation of fluid flow, for reducing the noise soun...
04/17/2001
6213445Solenoid valve with magnetic fluid damper
A gap part is formed between a magnetic plate and a moving core in a solenoid part, a magnetic fluid whose viscosity is increased by the influence of the magnetic force is filled in the gap part, the viscosity of the magnetic fluid is increased by the inf...
04/10/2001
6189856Pressure release valve
A pressure release valve for a steam peeler for potatoes has a differential piston assembly including a piston which is movable between an open position and a closed position under steam control, and a fixed piston element which is received in a secondary...
02/20/2001
6173938Two speed air cylinder for slit valve motion control
A multi-speed slit valve apparatus and method of actuating a slit valve apparatus at least at two distinct speeds is provided. The slit valve apparatus includes a pneumatic cylinder 210 having a primary channel 254, 266 and auxiliary channel 258, 270 at e...
01/16/2001
6168418Ignition system with delay switch for a gas appliance
An ignition system for a gas appliance comprises an ignitor for igniting gas, a gas valve which controls the flow of gas to the ignitor, and a delay switch which delays the opening of the gas valve. The delay switch comprises a piston and a cylinder which...
01/02/2001
6168091Low noise electronically actuated oil valve and fuel injector using same
A hydraulically actuated fuel injector includes an injector body that defines a high pressure passage, a low pressure passage, a control passage, a fuel inlet, and a nozzle outlet. The injector body includes upper surface and a lower surface that partiall...
01/02/2001
6161813Solenoid valve for an electrically controlled valve
A solenoid valve comprising a magnet armature which is embodied as having multiple parts and has an armature disk and an armature bolt. The magnet armature is guided in a slider. A damping device is provided in order to prevent post-pulse oscillation of t...
12/19/2000
6145805Liquid control valve assembly with local damping and hydraulically actuated fuel injector using same
A hydraulically actuated fuel injector comprises a valve body and a stepped valve member. The valve body has a wide bore portion and a narrow bore portion. The stepped valve member has a wide member section and a narrow member section. The wide member sec...
11/14/2000
6073649Adjustable flow limiter
An adjustable flow limiter for adjustably limiting flow, for example through the vent of a diaphragm-type fluid flow regulator. The adjustable flow limiter has a housing with a compartment therein, and first and second ports communicating with the compart...
06/13/2000
6029945Self-closing valve
A self-closing valve assembly has a main valve having a seat between a high-pressure input conduit and a low-pressure output conduit, a main valve element movable into and out of engagement with the seat to block and permit flow from the input conduit to ...
02/29/2000
5954312Groove means in a fuel injector valve seat
The conical valve seat in the valve body of a fuel injector has a circumferential groove means forming a pocket to capture an amount of the fuel that flows through the injector. The needle valve seals and seats on the downstream edge of the groove means, ...
09/21/1999
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