Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7174918 | Air flow control valve for vehicle air conditioning module A novel air flow control valve for an air outlet in an HVAC housing provides for strong, even seal pressure all the way around the edge of the opening. In stead of a swinging door hinged at one edge of the opening, in which seal pressure is strong on the hinge edge ... | 02/13/2007 |
| 6588442 | Servo operated rotary valve with emergency bypass and method of making same A motorized rotary water valve has an integrally formed one piece motor housing and emergency bypass channel. A solenoid operated valve is integrally provided on the bypass channel and is spring biased to the open position upon shut off of electrical powe... | 07/08/2003 |
| 6568417 | Throttle valve assembly A throttle valve assembly for a deposition chamber or the like is disclosed. The throttle valve assembly comprises a shaft including a first portion and second portion. At least one throttle vane or plate is coupled to the first portion of the shaft and a... | 05/27/2003 |
| 6318399 | Latch mechanism A fluid damper in a ventilation duct serves to close the duct in the event of a fire so as to damp the flow of air in the duct. The damper comprises a retractable curtain that is normally retained in a retracted configuration by a latch mechanism attached... | 11/20/2001 |
| 6293306 | Throttle gate valve A throttle gate valve (10) including an upright, generally rectangular valve housing (12), in which is positioned a linearly movable gate valve (32) for closing off a thru-opening (15) formed in the lower part of housing (12). A pneumatic actuator assembl... | 09/25/2001 |
| 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 |
| 6164329 | Generally T-shaped valve and valve assembly Valve assembly 10 and generally T-shaped fast acting high-output valve 12 suitable to control flow of fluid through base opening 42, wherein valve 12 comprises stem 14 having pivoting end 16 and arm end 18. Two arms 20 are coupled to arm end 18 of stem 14... | 12/26/2000 |
| 6161576 | Integrated turbo pump and control valve system A gas delivery system comprises a gate valve that can be connected between a turbo pump and a process chamber. The gate valve includes a valve body, a valve seat and a housing constructed to support the valve seat, wherein (a) the valve body is secured wi... | 12/19/2000 |
| 5845677 | Dual throttle valve The present invention relates to a dual throttle valve of a car which includes an intake pipe divided into a primary intake path for low speed and a secondary intake path for middle or high speed, a primary throttle valve, a secondary throttle valve, a pi... | 12/08/1998 |
| 5195558 | Automatic/manual double-function urinal flush valve An automatic/manual double-function urinal flush valve comprising a first flush port sealed by an electromagnetic valve controlled diaphragm, a second flush port sealed by a press rod controlled oscillating rod, wherein the press rod is pressed down, duri... | 03/23/1993 |
| 5174337 | Water conditioner rotary valve A water conditioner rotary valve for use in a water conditioning system includes a valve body constructed of an upper section, a lower section and a middle section, to facilitate ease in assembly of the body. The valve rotor member of the conditioner valv... | 12/29/1992 |
| 5101857 | Valve vane A valve vane is provided, where the valve vane is movable along the surface of a casing part and is driven by a dog follower, guided in a slot of the casing part, wherein the slot is furnished at least at one end, and wherein a flat slider is required for... | 04/07/1992 |
| 5048564 | High-speed solenoid valve for a fluid under pressure, e.g. for pneumatic circuits A solenoid valve having an electromagnet arranged in a chamber into which an inlet duct and an outlet duct of the solenoid valve open, whereby the coil is constantly ventilated by the compressed air itself. The armature of the electromagnetic has a disc f... | 09/17/1991 |
| 4967793 | Compact multi-stage pressure reducing valve A flow control and pressure reducing valve has a valve body with an inlet chamber and outlet chamber separated by a partition plate. A plurality of passages are formed in the valve body spaced circumferentially around the partition plate and have an inlet... | 11/06/1990 |
| 4739798 | Multiple control valve for mixing fluids A mixing valve particularly suited for use as a water faucet includes separate levers for selectively delivering an unmixed flow of cold water, an unmixed flow of hot water, and one or more mixed flows of intermediate temperature water. An intermediate te... | 04/26/1988 |
| 4628954 | Multi-use damper An air damper having a housing, a strut mounted across the housing, a pair of damper panels hinged on the strut, and swingable between open and closed positions, an adjustable control above the strut, and, linkage on the upper side of each panel extending... | 12/16/1986 |
| 4608913 | Actuator with pneumatic energy accumulator more especially for cock valves The present invention provides an actuator comprising a hydraulic cylinder whose rod is connected to the shaft driving the controlled device by means of a transmission. The end of the rod of the cylinder penetrates into an accumulation chamber connected t... | 09/02/1986 |
