Class 251/335.1 - HERMETIC FLEXIBLE WALL SEAL FOR ACTUATOR

Subclass of Class 251 - Valves and valve actuation
Definition: Subject matter wherein sealing means comprising a diaphragm
No. of patents: 35
Last issue date: 11/08/2005

Number	Title	Issue Date
6962319	Safety switch for a water dispenser A safety switch for a water dispenser includes a sealing ring movably received in the channel to alternatively block communication between the inlet and the outlet, a guiding rod securely received in the sealing ring and having a first spring compressibly mounted ar...	11/08/2005
6807984	High flow high control valve and assembly A valve and a valve assembly are provided that exhibit both highly controlled metering of fluid, as well as a high volume of fluid flow when the valve is in the fully open position. The regulating portion of the valve is provided with channels having different cross...	10/26/2004
6601823	Sanitary drain valve design A valve for sampling a process from a tank or conduit includes an internal cavity in communication with at least one inlet and an outlet. A valve actuating rod includes a sealing tip attached to one end thereof. The valve actuating rod is movable to open ...	08/05/2003
6192924	Pilot operated relief valve A pilot operated safety relief valve (14) in which a pilot valve (32) controls the opening and closing of the main valve member (26). The pilot valve (32) has a spindle valve member (70) between an intermediate dome fluid chamber (52) and an exhaust chamb...	02/27/2001
6189861	Diaphragm valve A flow control device includes a first body and a second body; a threaded engagement for clamping the bodies together in an axially aligned relationship; a diaphragm seal that is disposed axially between the first and second bodies to form a seal there be...	02/20/2001
6116267	Valving device A valving device can operate stably to provide switching or flow rate control operations, even when it is used for controlling thermodynamically unstable gases. The valving device including a valve casing having an internal passage for process fluids. A v...	09/12/2000
6086045	Tap with safety mechanism A tap attached to one end of a water pipe or a connecting pipe of a water dispenser, and controlling the flow of water or liquid by opening and closing an outlet by the operation of a handle actuated by the leverage, the tap including a body having a shaf...	07/11/2000
6003468	Animal watering valve with deflectable elastomeric boot An animal watering valve, of the type actuated by radially deflecting a valve stem, has a deflectable elastomeric boot which is less susceptible to sticking or clogging than movable shields but which at the same time prevents or at least inhibits bedding ...	12/21/1999
5950987	In-line lever actuated valve An in-line, lever actuated valve for use in a liquid filling apparatus includes a valve body having an outer surface and defining an inlet region, an outlet region and a flow chamber intermediate the inlet and outlet regions. The valve body defines a cone...	09/14/1999
5881997	Metal diaphragm type valve A metal diaphragm type valve includes a valve seat holder supported from a rotatable valve stem, a metal diaphragm and a deflection limiter. The valve seat holder has a shaft extending upwardly through central openings in the diaphragm and the deflection ...	03/16/1999
5865423	High flow diaphragm valve A diaphragm valve is provided with a valve housing having an inlet passage extending into a chamber and an outlet passage extending from the chamber. A diaphragm is mounted to the valve housing for covering the valve chamber. The diaphragm is provided wit...	02/02/1999
5823967	Flush valve with cable attachment A flush valve having a fluid receiving housing having a first passageway, a fluid discharge housing having a second passageway, and a flow restricting device having a capillary tube defining a primary fluid flow path extending between the first passageway...	10/20/1998
5820565	Flush valve with interlocking seal A flush valve comprising a fluid receiving housing having a first passageway, a fluid discharge housing having a second passageway, and a flow restricting means having a capillary tube defining a primary fluid flow path extending between the first passage...	10/13/1998
5771884	Magnetic exhalation valve with compensation for temperature and patient airway pressure induced changes to the magnetic field The exhalation valve includes a valve housing with a valve seat having an annular shoulder, and a valve poppet having a face with a corresponding annular groove. A soft flexible diaphragm seal disposed between the face of the valve poppet and the valve se...	06/30/1998
5743513	Diaphragm valve A diaphragm valve comprises: a body (1) having an inflow passage (1a), an outflow passage (1b), a concave valve chamber (1c) and a valve seat (1d); a metallic main diaphragm (2) which holds airtightness of the valve chamber (1c) and makes contact with and...	04/28/1998
5730415	Flush valve triple seal handle packing A toilet flushing device has a body with an inlet and an outlet. There is a valve seat in the body in the flow path between the inlet and the outlet and a valve in the body movable toward and away from the valve seat to control water flow through the toil...	03/24/1998
5624102	Structure for sealing an inner peripheral portion of a metallic diaphragm An inner peripheral portion of a metallic diaphragm (11) having a mounting hole (11a) at a central portion is held between a metallic welding fitting (8, 8') and a metallic holding member (6, 17), each respectively having an annular flat portion (8a, 6a, ...	04/29/1997
5447257	Valve trumpet spring and seal A compression spring is formed of elastic material in a shape resembling a trumpet horn. Novel valve structures incorporate the trumpet horn spring as a component, the latter of which serves therein to make the valve self restoring and also to provide a f...	09/05/1995
5326074	Enhanced sealing arrangement for a rotary valve shaft A valve has an actuating shaft packing assembly for located in a valve enclosure cover for preventing leakage of process fluid into the space between the actuating shaft and the cylindrical sidewall of a bore in the cover. The assembly includes an annular...	07/05/1994
5213237	Lock gate blade-type valve A low profile, lock-gate type of valve for handling dry particulate material forms a conduit therethrough, and a pair of curved flow control blades are mounted on arms and are pivoted with respect to the conduit, to define therebetween a flow measuring ch...	05/25/1993
5114055	A reinforced tubular seal A dispensing nozzle for a liquid composition having a needle valve and a reinforced tubular seal. The seal has an upper disc-like portion which is secured in place and a lower tubular extension. The tubular extension has an internal tapered bore such that...	05/19/1992
4917355	Stop valve An improved stop valve eliminates the need for O-rings and washers. The valve contains a one piece unitary stem formed of resilient compressible plastic material. The stem contains three separate seals and fits within, extends through and is moveable in a...	04/17/1990
4818397	Shut-off valve seal A shut-off valve sealing system for a removable cartridge-type filter which includes a body having an inlet to conduct fluid to be filtered therethrough to an inlet of the filter cartridge. The body has an outlet to conduct filtered fluid therethrough fro...	04/04/1989
4729543	Valve A fluid-supply valve comprises a fluid inlet passage; an intermediate fluid chamber of greater volume than this passage; an fluid outlet from the chamber; and a device for closing off the inlet passage which is selectively adaptable to operate in one of t...	03/08/1988
4684106	Valve A valve including indicating means for indicating overtravel of an operating member beyond its normally closed position for warning that replacement of a seal is necessary. A diaphragm valve has a diaphragm of a material which withstands repeated flexing ...	08/04/1987
4462422	Bellows sealed stem for rotary valve A valve body includes a chamber for the flow of fluid between an inlet and outlet thereto. A valve member, such as a ball valve member, is positioned in the chamber for rotatable movement between an open position and a closed position to open and close th...	07/31/1984
4338689	Self-aligning valve assembly A self-aligning valve assembly and a valve plug therefor includes an elastomeric valve plug having an annular outer sealing portion with an annular sealing surface for sealing a drain hole valve seating of a receptacle. A central mounting portion is secur...	07/13/1982
4285498	Control valves A control valve has a gland seal comprising a sealing member formed of a flexible polymeric material, preferably PTFE. The sealing member comprises a tubular portion located around the valve spindle and a radially extending flange encircling the tubular p...	08/25/1981
4278083	Flow regulating device for arterial catheter systems A flow regulating device provides continuous, regulated flow of a medical fluid, as well as intermittent, manually controlled larger flows of fluid to a catheter system. Such apparatus includes a control member having an inlet means adapted to be connecte...	07/14/1981
4193423	Multiway valve A multiway valve which includes an axially positionable regulating member therein. The regulating member includes a diaphragm sealingly connected thereto which has a sealing lip extending radially therefrom which contacts the inner valve wall and an elast...	03/18/1980
4192303	Flow regulating device for arterial catheter systems A flow regulating device provides continuous, regulated flow of a medical fluid, as well as intermittent, manually controlled larger flows of fluid to a catheter system. Such apparatus includes a control member having an inlet means adapted to be connecte...	03/11/1980
4183500	Control valves In a valve for controlling fluid flow, the spindle comprises a flexible polymeric sheath, preferably PTFE, around the end of a stem, the sheath having a tubular portion suspended clear of the stem and having an oversize external ridge which is accommodate...	01/15/1980
4164168	Vacuum booster device A vacuum booster device has a casing defining two chambers partitioned by a diaphragm, a valve body connected to the diaphragm, a plunger slidably and sealingly inserted in the valve body and connected to an input rod, two valve seats formed respectively ...	08/14/1979
4044998	Web tip seat cup Valve assemblies of the type often used for dispensing liquid foods and beverages. The disclosed valves each comprise a valve or nozzle body including a valve chamber connected with a lateral inlet passage and an axial outlet passage. A valve seat is form...	08/30/1977
4000224	Carburetor and fuel supply system A carburetor and fuel feed device for small internal combustion engines incorporating a pumping section which receives fuel from a supply and delivers the required amounts for the range of operation between high and low speed operation with any excess bei...	12/28/1976

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Class 251/335.1 - HERMETIC FLEXIBLE WALL SEAL FOR ACTUATOR