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| Number | Title | Issue Date |
| 7328881 | Evacuating valve An evacuating valve includes a chamber port structure to be connected to a vacuum vessel in which a plasma is produce to create a plasma atmosphere, a pump port structure to be connected to a vacuum pump; a valve casing defining a passage connecting the chamber port... | 02/12/2008 |
| 7216831 | Shape changing structure In one preferred embodiment, a structure is provided that includes a body having a first wall and a second wall. At least one appending component extends from an end of the body and includes a first skin and second skin. The structure additionally includes at least ... | 05/15/2007 |
| 7168676 | Two-port valve for vacuum operation Disclosed is a two-port valve in which a fluid passage between two ports is gradually openable without a rapid flow rate, by stepwise lifting a valve member off a valve sent using two pistons, to open the valve in a phased manner. A cylinder portion 2 for dri... | 01/30/2007 |
| 7036790 | Vacuum pressure regulating valve An annular valve seat is formed in a connecting path connecting a first main port and a second main port, a circular flow path wall having a diameter greater than a seat diameter is formed around the valve seat so as to surround the valve seat, a circular outer peri... | 05/02/2006 |
| 6926691 | Hydrocephalus valve In order to allow improved adaptation to the situation existing in a patient in the case of a hydrocephalus valve with an electric actuating system comprising a control system opening and closing the hydrocephalus valve, it is proposed that the control system is a t... | 08/09/2005 |
| 6702249 | Pressure-variable valve device and set-pressure adjusting device for the valve device A pressure-variable valve device which is adapted to be embedded in the human body and which is capable of changing a difference in pressure between an inlet-side and an outlet-side duct, the valve device including a rotating member capable of rotating ar... | 03/09/2004 |
| 6684904 | Variable pressure valve apparatus A valve can varied in operating pressure and stopped in opening and closing by an efficiently movable actuator due to feeding of electric power without malfunction due to disturbance of magnetism, impact or temperature. A variable pressure valve is provid... | 02/03/2004 |
| 6494229 | Pilot-type two-port vacuum valve In a vacuum valve including a main flow path and an auxiliary flow path for connecting a chamber port and a pump port in parallel, a main valve body for opening and closing a main valve seat in the main flow path, and an auxiliary valve body for opening a... | 12/17/2002 |
| 6491059 | Smooth exhaust valve A smooth exhaust valve includes a main flow path having a large cross-sectional area and an auxiliary flow path having a small cross-sectional area for connecting a first port and a second port in parallel, a main valve body for opening and closing the ma... | 12/10/2002 |
| 6485449 | Pressure-variable valve device and set-pressure adjusting device for the valve device A pressure-variable valve device which is adapted to be embedded in the human body and which is capable of changing a difference in pressure between an inlet-side and an outlet-side duct, the valve device including a rotating member capable of rotating ar... | 11/26/2002 |
| 6474360 | Variable pressure valve apparatus A variable pressure valve apparatus has a case having a fluid inlet port and a fluid discharge port, a valve element for closing the fluid inlet port, a spring member disposed in the case for biasing the valve element to close the fluid inlet port, and a ... | 11/05/2002 |
| 6391019 | Valve apparatus and valve system using thereof A valve apparatus of a valve system includes a long-sized elastic member a base end portion of which is fixed and a front end portion of which is brought into contact with a valve element and a movable member capable of moving in B1 and B2 directions actu... | 05/21/2002 |
| 6019115 | Safety excess flow valve system with adjustable closing flow rate settings The present invention relates to an excess flow valve system having a sliding poppet within a chamber with an orifice at one end, wherein the closing flow rate settings can be adjusted. Precise adjustments can be made externally by turning a threaded memb... | 02/01/2000 |
| 5950623 | Adjustable pressure limiting valve for anesthesia breathing circuit An adjustable pressure limiting valve having a non-linear biasing means. The valve has a movable valve member that can be moved to an open position by a predetermined pressure and a closed position on a valve seat. A rotating control knob is rotated by th... | 09/14/1999 |
| 5507311 | Pressure regulator for a pressure cooker A pressure cooker pressure regulator having at least two operating thresholds, the regulator being of the type comprising a valve body fixed to the lid of a pressure cooker and having a valve seat formed therein, and a needle carrying a rating mass and be... | 04/16/1996 |
| 5263508 | Sewer line water trap charging valve with improved adjustment for house line pressure changes A device for charging sever line traps automatically upon decrease in main line water pressure comprising a branch line having a piston valve member telescopically received over the end of an adjustable tubular member, the piston having a first seat for s... | 11/23/1993 |
| 5141024 | Valve with paired helical ramps Axial displacement between two components of a valve occurs as a result of relative rotation through the cooperation of helical ramps. Preferably another pair of helical ramps is provided concentric with the first but angularly offset 180° with the resul... | 08/25/1992 |
| 5092229 | Entirely uniformly heated responsive cooker An entirely uniformly heated responsive cooker comprising an inner pot and an outer pot, wherein the inner pot neither directly touches the heating source nor the wall portion of the outer pot by means of exhalation valve means capable of adjusting proper... | 03/03/1992 |
| 5040563 | Adjustable air pressure valve An adjustable air pressure valve for placement in a compressed air hose. Positioning a knob determines the pressure exerted by a spring on a valve member which allows air above a predetermined pressure to escape from the hose to the atmosphere. The knob i... | 08/20/1991 |
| 4834286 | Spray gun, more especially for paints The invention provides a spray gun for liquids and more especially liquid coatings such as paints and varnishes, comprising a liquid container, a housing, a pump for the supply of the liquid from the liquid container to a spray nozzle via a spring loaded ... | 05/30/1989 |
| 4818444 | Fluid pressure control valve and a system which includes such a valve A fluid pressure control valve and a fluid control system (such as for beverage dispensing) with such a valve has a beverage passage 3, pressure fluctuations in which are detected by a diaphragm 17 to displace a sensing member 15 axially against spring lo... | 04/04/1989 |
| 4762145 | Underwater pressure relief valve Relief valve facilitating the underwater balancing of scuba divers' inflatable articles, which is finely adjustable and extremely responsive, and is designed to ensure a high functionality by using simplified components to minimize the manufacturing costs... | 08/09/1988 |
| 4644972 | Floating seal valve assembly A valve assembly for the control of pressurized fluids. The assembly comprises a casing housing a valve chamber with communicating inlet and outlet ports. A valve seat and valve-operating subassembly is associated with one of the ports. The valve-operatin... | 02/24/1987 |
| 4595390 | Magnetically-adjustable cerebrospinal fluid shunt valve A surgically-implantable shunt valve in which the popping pressure is adjusted in finite increments by application of an external magnetic field.... | 06/17/1986 |
| 4428398 | Pressure control valve A pressure control valve including a valve, a spring for pressing the valve, and a power input means for compressing the spring further comprises a backup force-generating mechanism for producing and directing a backup force counter to the direction in wh... | 01/31/1984 |
| 4379470 | Closing cap, particularly for a motor vehicle radiator In the housing of a closing cap 2, a valve seat plate 3 is held in place by means of a resilient ring 8 forming at the same time a seal relative to the tank connection to which the closing cap is screwed by its internal thread 1. The valve seat plate 3 su... | 04/12/1983 |
| 4291660 | Recycling exhaust fumes valve A system incorporated with an internal combustion engine for recycling engine exhaust fumes back into the engine for a more thorough burning before final discharge; the system including a one way valve unit installed along a line between the muffler and t... | 09/29/1981 |
| 4201242 | Pressure relief valve There is disclosed a pressure relief valve having a part which is movable to a first position for returning the closure member thereof to closed position, and thus resetting the valve, automatically in response to a predetermined low pressure level of flu... | 05/06/1980 |
| 3964585 | Hydraulic double clutch of the wet type with pressure control valves Hydraulic double clutch comprising a tractor-driving clutch unit and a power takeoff clutch unit accommodated in a clutch housing serving also as an oil tank. Hydraulic pumps disposed in the housing have gears respectively meshing with a gear on the drive... | 06/22/1976 |
