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"That the automobile has practically reached the limit of its development is suggested by the fact that during the past year no improvements of a radical nature have been introduced."
Scientific American ; Jan. 2 edition, 1909
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| Number | Title | Issue Date |
| 6901962 | Surge prevention device A surge prevention valve may be used to prevent the formation of an initial surge of high pressure. The valve may be located, for example, between a high pressure gas cylinder and a medical pressure regulator. The valve is provided with first and second valves locat... | 06/07/2005 |
| 6776392 | Retractable plug assembly A retractable plug assembly for engaging a seat ring seating surface comprises a plug housing, a plug body, a retainer ring, a wear ring, a spring retainer and a valve spring. The plug housing has the plug body slidably disposed therewithin and defines a plug body s... | 08/17/2004 |
| 6729600 | Valve for regulating fluids A valve for regulating fluids includes a piezo-electric actor unit (9) for operating a valve member assembly. The valve member assembly has at least one first piston (13) guided in a valve body (10) and a second piston (14). A hydraulic c... | 05/04/2004 |
| 6565065 | Disc valve adaptor An adaptor is for a rising disc valve which has a handle for rotating a stem in a housing bore having a shoulder and which displaces a disc valve member which seals against a frusto-conical housing seat spaced from the shoulder. A stack of Belleville -ste... | 05/20/2003 |
| 6495034 | Swimming pool valve system A swimming pool installation including a skimmer device, a vacuum system, a pump and a valve module is disclosed. A seat divides the valve module into an upstream chamber coupled to the skimmer device and a downstream chamber coupled to the vacuum system ... | 12/17/2002 |
| 5318274 | Sealing arrangement for valves In a sealing element for use in particular in high vacuum technology, a moveable closure unit (4) is closed tightly against a fixed outer flange (1) whose sealing surface (2) is preferably conical. The closure unit (4) comprises a hat-shaped outer part (5... | 06/07/1994 |
| 5318272 | Motor controlled throttling poppet valve A motor controlled poppet valve is provided of the type including a valve body, a valve seat mounted at one end of the valve body, and a valve element that comprises a threaded shaft having one end engaged to a nut driven by a stepper motor, and a free en... | 06/07/1994 |
| 5127431 | Flow control system for a beverage dispenser A piston-sleeve assembly for a flow control for a beverage dispenser in which the piston and sleeve are preferably injection molded. A rolling diaphragm provides a seal between the piston and sleeve. The piston includes flow control pads biased into conta... | 07/07/1992 |
| 5083750 | Membrane valve A membrane valve having a metal membrane bent smoothly axially at its inner and outer peripheries and welded steplessly, smoothly and flush to an outer ring clamped between two housing parts and a valve member which can be a cone in metal-to-metal engagem... | 01/28/1992 |
| 4815698 | Hard seated valve A hard seated globe valve assembly for use in servicing high and low temperature fluids. The valve includes a moveable stem attached at one end to a tapered plug of hard material. An equally hard seat having a tapered surface is mounted for mating engagem... | 03/28/1989 |
| 4792068 | Nozzle with at least one opening that can be closed off A nozzle with at least one opening that can be closed off, and especially a nozzle for packaging machines, including those that handle liquid products, with a valve body in the form of a piston that moves back and forth between a retracted position wherei... | 12/20/1988 |
| 4662400 | Fluid dispensing For precision dispensing of fluids particularly for medical applications, a face valve has a valve member mounted for linear sliding movement across the face of a valve body, which has fluid passages therethrough, between positions in which respectively t... | 05/05/1987 |
| 4473088 | Pressure regulator faucet slide valve A hot and cold water pressure regulating mixing faucet with automatic hot water shut-off in the event of cold water failure. The faucet maintains a predetermined discharge pressure less than the supply pressure regardless of the amount of water issuing fr... | 09/25/1984 |
| 4421298 | Y Pattern valve A valve of the Y pattern is disclosed which is useful for stopping gas flow in a vacuum system. The valve has particularly good sealing characteristics needing moderate pressures to seal in a uranium hexafluoride environment. Heretofore an environment of ... | 12/20/1983 |
| 4290453 | Reversing valve construction and method of making the same A reversing valve construction having a housing provided with a chamber carrying a movable piston-like valve member therein that controls ports of a valve seat of the housing through the relative position of a cavity of the valve member relative to the po... | 09/22/1981 |
| 4212324 | Reversing valve construction and method of making the same A reversing valve construction having a housing carrying a movable piston-like valve member therein that controls ports of a valve seat of the housing provided with a chamber through the relative position of a cavity of the valve member relative to the po... | 07/15/1980 |
| 4144905 | Reversing valve construction and method of making the same A reversing valve construction having a housing provided with a chamber carrying a movable piston-like valve member therein that controls ports of a valve seat of the housing through the relative position of a cavity of the valve member relative to the po... | 03/20/1979 |
