Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 7419142 | Variable fuel admission carburetor A variable fuel admission carburetor is provided including a piston and cylinder that are mated concentrically, and coexist in a carburetor chamber. The cylinder includes a longitudinal slot which allows varying amount of fuel into the carburetor. Through the relati... | 09/02/2008 |
| 7406983 | Shut-off fitting The invention relates to a shut-off fitting comprising a housing which is connected to an adjacent pipeline in a pressure tight manner, the diameter of said pipeline defining a tubular passage in the housing. Said fitting also comprises at least one closing body whi... | 08/05/2008 |
| 7341237 | Valve mechanism for a vacuum valve A valve mechanism having at least one movable valve member for sealing of a valve opening in a housing. Movements of the individual movable valve members are accomplished essentially parallelly to, and perpendicularly to, the seat surface of the valve during the ope... | 03/11/2008 |
| 7270313 | Carburetor fuel metering apparatus having an elongate spray nozzle and V-shaped deflector A fuel metering apparatus provides a carburetor; a fuel float control, a fuel metering assembly and a rocker arm assembly. The rocker arm is mechanically linked to and is operated by an accelerator pedal. Its position determines the size of a gap between a fuel mete... | 09/18/2007 |
| 7140594 | Opening/shutting apparatus for flow control An opening/shutting apparatus for flow control includes a damper door that opens/shuts a fluid channel of an interior of a duct, a knob that adjusts the damper door, a link coupled to an end of the damper door, and a rod hinged with both the knob and the link, the r... | 11/28/2006 |
| 7044444 | Actuator element with position detection An actuator element suitable, for example, for actuating a rotatable disk or a flap valve shaft. The actuator includes a housing, a drive situated in the housing, and at least one position detector, in which a movably mounted piston rod in the housing is operatively... | 05/16/2006 |
| 7032883 | Hybrid butterfly fluid control valve A flow control valve system has a housing that defines a flow path, a throttle element disposed in the flow path, and a linkage assembly coupled to the throttle element and oriented substantially outside the flow path. With such an orientation, the linkage assembly ... | 04/25/2006 |
| 6971631 | Fluid damper A damper utilizing a frame having a base and a wall portion extending outwardly from the same. The wall portion supports a stepped edge which is positioned to at least partially circumvent and aperture formed by the frame. A plurality of flanges are positioned in ov... | 12/06/2005 |
| 6962322 | Waste water valve system A drain pipe dispenses waste water from the vehicle. The drain pipe has a circumferential slot and a gate collar around the drain pipe over the slot. A gate valve is coupled to the gate collar. A gate reciprocable between a closed and open position is provided. A dr... | 11/08/2005 |
| 6957816 | Loop seal for knife gate valve A seal for use with a knife gate valve is disclosed, the seal having a loop to which is attached an axially facing sealing lobe. A sealing surface is positioned on the sealing lobe, the sealing surface having an axially projecting leading edge and flanking annular s... | 10/25/2005 |
| 6908071 | Self-closing faucet with shearing action A faucet includes a body having a main bore including an inlet and an outlet. A bonnet and spout are connected to the body. A stem includes a first portion inserted into the outlet of the main bore and a second portion that projects through the bonnet chamber to a d... | 06/21/2005 |
| 6772991 | Tapping device The valve (1) has a valve casing (2), a cone (4) with a shaft (40) emanating from the Cone (4), and a seat (20). The valve has a control element (3) for moving the cone (4) to and from the seat (20). The... | 08/10/2004 |
| 6748970 | Pilot operated water conservation valve and actuator A fluid diaphragm valve and interconnected pilot valve apparatus for control flow of fluid discharge from a pressurized fluid distribution system. The apparatus has a primary valve with an inlet adapted to receive fluid under pressure, and an outlet adapted to disch... | 06/15/2004 |
| 6676031 | Fountain shutter This invention discloses an ornamental fountain wherein a fountain nozzle is made to discharge a pressurized stream of liquid, and a shutter prevents or allows the stream to exit.... | 01/13/2004 |
| 6644239 | Valve, milking claw and milking system A diaphragm valve for shutting off milk flow through a claw (13) of a vacuum driven milking machine has, in a preferred embodiment, a lever (5) linked (6), outside the milk flow, to the diaphragm (4), thereby avoiding any bushings which are prone to leaka... | 11/11/2003 |
| 6572075 | Valve for controlling flow rate of gas A valve has a valve body having a passage including a hole in which gas flows. A valve disc is provided for closing the hole, and an actuator is provided for operating the valve disc. An emergency cutoff device is provided so that the valve disc closes th... | 06/03/2003 |
| 6557586 | Control handle support and valve linkage assembly A control handle support and valve linkage assembly for use in a lift truck or like vehicle is provided. The assembly includes a first stationary bracket and a second bracket that pivots relative to the first bracket. At least one, and preferably an array... | 05/06/2003 |
| 6543747 | Valve actuator apparatus A valve actuator includes two parallel tracks in each of which a slider block is disposed to slide with a pivot pin and nut carried between the slider blocks; a valve stem engaging member is provided with an arm terminating in a sleeve in which a pin havi... | 04/08/2003 |
| 6488262 | Gate valve for semiconductor processing system A gate valve (20) for a semiconductor processing system includes a base frame (28) configured movable along a guide (26) to move toward and away from a valve seat (22), which surrounds an opening portion (14). A first stopper (56) is disposed at the upper... | 12/03/2002 |
| 6461117 | Reversible volume oil pump A fluid pump is provided that produces an outflow of fluid that is not proportional to the speed of the input drive. Thus, the fluid pump can be tuned to provide a substantially constant outflow of fluid irrespective of the speed of the input drive. The f... | 10/08/2002 |
| 6443425 | Valve A valve, especially a switch-over valve for large channel cross sections, is provided. A wing is pivotably mounted in a housing having channel connections. A fixating lever assembly provides for movement of the wing and includes a fixating lever and at le... | 09/03/2002 |
| 6443424 | Clutch arm centering device A clutch arm centering device is disclosed. The device is mounted on a clutch using to operate piston valves on a crane or other heavy machine. The piston valves may be operated using a valve arm which has two operative positions and a neutral position be... | 09/03/2002 |
| 6439539 | Electrically controllable valve An electrically controllable valve comprising at least one input port (13) and one or more output ports (12, 14), at least one sealing means (17, 18) being arranged to control the flow of a fluid between said input port and at least one of said output por... | 08/27/2002 |
| 6412750 | Valve system for fluid pipes A valve system for fluid pipes is disclosed. This valve system is designed to be operable using pneumatic pressure or using another means, such as a valve control lever or fluid pressure, in place of pneumatic pressure and is designed to be controlled eas... | 07/02/2002 |
| 6386511 | Gate valve apparatus To be able to reduce the size of a drive part and, as a result, to achieve the reduction in size and the lowering of manufacturing cots of a gate valve. An open/close mechanism is configured from a turning pair only. This open/close mechanism is configure... | 05/14/2002 |
| 6354934 | Heating, ventilation and/or air conditioning apparatus including one or more flaps controlled by a control device The invention relates to a heating, ventilation and/or air conditioning apparatus that includes a control device and a flap controlled by the control device. The control device includes a control member and a kinematic control linkage of the direct-coupli... | 03/12/2002 |
| 6273136 | Differential valve, specifically a cabin air discharge valve in an aircraft, and method for regulating cabin pressure Disclosed is a differential valve specifically a cabin air discharge valve for use in the cabin pressure regulating system of an airplane. The valve has two valve stages for closing a valve port including a smaller first stage and a larger second stage. T... | 08/14/2001 |
| 6250326 | Dual temperature fire damper releasing system A mechanical dual temperature damper closing mechanism having a primary link that separates when the ambient temperature reaches approximately 74° F., closing the damper. The new mechanism provides a reliable means for reopening the damper to allow airfl... | 06/26/2001 |
| 6202607 | Electromagnetically operating device for actuating a valve An electromagnetically operating device for actuating a valve comprises a single solenoid cooperating with an armature which cooperates by a crank system with a shaft which, in turn, is cooperating by a crank system with a valve. The fully open position a... | 03/20/2001 |
| 6178988 | Hydrant design A hydrant valve assembly including a spool member having at least one spool seal which is at times under extremely high pressure tending to cause the seal to be displaced from an associated recess, the spool member forming venting passages in the seal rec... | 01/30/2001 |
| 6162119 | Device for regulation of intake air in a vehicle The present invention relates to an apparatus for controlling the supply of intake air to a vehicle, incorporating a control unit which is arranged to indicate and initiate supply of intake air to at least three intake air regions in the vehicle which usu... | 12/19/2000 |
| 6135414 | Ball valve apparatus Apparatus for coordinating the positions of valves in a pair of air flow passages along a jet engine nacelle to control two rotary valves from a single linear actuator. Each of the valves is of a ball type which is rotatable within a housing to achieve va... | 10/24/2000 |
| 6112762 | Top operated bottom outlet valve assembly A bottom valve assembly is provided for a tank car having a top portion, a bottom portion, and a manway disposed in the top portion. The assembly includes a valve seat disposed in the bottom portion of the tank car and defining an outlet opening and a plu... | 09/05/2000 |
| 6089530 | Gate valve A swing gate valve for closing a lateral discharge opening in an elongated conduit includes a swing gate shaped to fit around the exterior of the conduit in an open position adjacent the lateral opening. A pair of pivotable swing arms are connected to the... | 07/18/2000 |
| 6053251 | Reduced travel operating mechanism for downhole tools A reduced travel operating mechanism for downhole tools is provided. The reduced travel operating mechanism (57) includes a load ratio system (59) which may include compression ring (102) disposed within circumferential guide pocket (123) and a linkage sy... | 04/25/2000 |
| 6016832 | Valve for controlling gas mass flow A fuel admission valve for metering gas without using a mass flow sensor. The valve uses a flow control element and nozzle, an actuator, a fuel supply pressure sensor, a fuel supply temperature sensor, a flow control element position sensor, and a flow co... | 01/25/2000 |
| 6000675 | Tension-spring return rotary valve actuator A rotary valve actuator with movable actuator linkage maintained in a constant "pull-pull" tension, includes a sliding canister, rotatable lever, and a return spring substantially aligned in-line with each other. The linear motion of the canister in respo... | 12/14/1999 |
| 5975487 | Rotary valve actuator with high-low-high torque linkage A rotary valve actuator for fluid control valves having improved actuator linkage matching the torque requirements of most rotary shaft valves. A link member is pivotally interconnected to a linear movable actuating member and to a rotatable lever. The li... | 11/02/1999 |
| 5967486 | Automated actuator for pull-open, push-closed valves A valve actuator having a pivotal cam-lever driven push-pull mechanical linkage system. A power mechanism moves a cam-lever member which then moves a connecting rod to move a push-pull member to lift out or push in a conventional valve stem. This then ope... | 10/19/1999 |
| 5950660 | Housing assembly for fixed cone sleeve valve A liquid flow control system comprises an upstream length of conduit, a downstream length of conduit, a valve housing, a cone valve seat and a sleeve valve. The valve housing is connected between the upstream length of conduit and the downstream length of... | 09/14/1999 |
