Class 251/299 - Terminal

Subclass of Class 251 - Valves and valve actuation
Definition: Devices in which the valve is mounted externally of the
No. of patents: 34
Last issue date: 01/30/2007

Number	Title	Issue Date
6896003	High efficiency low actuation force inlet door An inlet system for an inlet in a flow field includes an inlet recess housing having an interior with forward and rear end walls, a base wall, and an opening formed in an upper surface thereof. An intake duct is formed in a rear end wall of the inlet recess. An inle...	05/24/2005
6427969	Adjustable gate valve assembly for vacuum chamber A vacuum processing device has at least one vacuum processing unit, which includes a housing defining a vacuum chamber, and a gate valve assembly. The valve assembly includes a lid plate. for covering an opening in the housing, and a connecting member con...	08/06/2002
6202669	Self-aligning valve A valve, for example a valve for use in conjunction with a pneumatic pressure controller for controlling a load pressure in a volume, comprises an apparatus for aligning a pressure control valve such that a seal between at least one input port and a flapp...	03/20/2001
6053474	Vent valve The invention is a valve for a microwavable container having a flexible lid. The valve has two posts extending from one side of a body member, and the posts correspond to two apertures in the lid. The cross-sectional area of the posts are larger than the ...	04/25/2000
5950988	Concrete boom discharge valve apparatus A concrete boom discharge valve apparatus 10 for controlling the flow of concrete from the discharge end 101 of a concrete boom 100 including a nozzle member 20 operatively connected on one end 21 to the discharge end 101 of the boom 100 and having the ot...	09/14/1999
5620015	Flush valve A valve for sealing a pipe opening with a seal plate movably attached to the pipe opening and a valve body fixed to the pipe opening. Moving the seal plate towards the pipe opening closes the valve, and moving the seal plate away from the pipe opening ope...	04/15/1997
5398910	Damper A damper including a motor, a reduction gear train rotatably coupled with the motor, reducing rotation of the motor and transmitting the reduced rotation of the motor to a baffle, a rack meshing with a last-stage gear of the reduction gear train and engag...	03/21/1995
5257647	Fountain attachment for a faucet A fountain attachment for a faucet, comprising a tubular body of rigid plastic material, a closure member of rigid plastic material hinged to the short rear wall of the tubular body and adapted to be pivoted to cover its inclined outlet end, a fountain sp...	11/02/1993
5163473	Valve system for automatic fuel delivery A valve system for use on vehicles for automatic fuel delivery to the vehicle fuel tank. An entry member having a conical passage is arranged on the fuel filler door of the vehicle. A valve body located behind the fuel filler door includes a sliding valve...	11/17/1992
5117514	Improved toilet-tank flapper valve An improved toilet flapper valve (10) designed to directly replace either a conventional toilet flapper valve or tank ball valve. The valve (10) allows a toilet user to selectively determine the quantity of water used for a toilet flush by controlling the...	06/02/1992
5056678	Access port sealing device An access port cover is fitted with a sealing plug that is adapted to fit inside a conduit to provide an occluding seal. The conduit is also fitted with an inner flap that is automatically closed and latched when the cover is closed and latched. In a pref...	10/15/1991
5029810	High performance damper blade and damper seal combination A high performance damper blade and damper blade seal combination including a damper blade having a planar portion perpendicular to the damper blade and a damper blade seal including a base and two upwardly extending legs. One leg of the damper blade seal...	07/09/1991
5020567	Drainage valve having a flexible flap with an edge taper A valve is installed into an underground conduit to control drainage of water through that conduit. The drainage control valve includes a perforated plate across the conduit. The latter plate is formed with a peripheral groove rectangular in cross section...	06/04/1991
4969586	Chute closure device A delivery chute flow control device is disclosed. The device has a body portion which mates with the remainder of the delivery chute. Affixed to one end of the body portion is a rotatable door which is used to control the flow of material. A locking mech...	11/13/1990
4899979	Bleeder valve assembly A valve assembly has a valve lid assembly which can be fitted in sealing relation on a valve seat, an over-center device can serve to force the lid on to the seat; a drive shaft connected to the lid assembly and drive means for rotating the shaft to open ...	02/13/1990
4784301	Dispensing spigot A dispensing spigot for a container in which the spigot 15 is mounted on a spout 10 and a portion 18 of the deformable diaphragm wall 19 sealingly engages the internal surface of the spout wall 12. To improve sealing a groove 21 is provided in the diaphra...	11/15/1988
4690296	Open flow valve assembly A non obstructing, flap type valve for a circular conduit is defined as a right angle section from a cylinder wall of the same diameter. A mating, right angle section taken from the end of the circular conduit defines the valve seat. The valve is end moun...	09/01/1987
4645100	Dispensing spigot A dispensing spigot for a container in which the spigot 15 is mounted on a spout 10 and a portion 18 of the deformable diaphragm wall 19 sealingly engages the internal surface of the spout wall 12. To improve sealing a groove 21 is provided in the diaphra...	02/24/1987
4541611	Arrangement for controlling an air duct An arrangement is described for pivoting a flap (5) relative to an air duct (1), as used for example in a vehicle heating and ventilation system. A first actuating element (7a) is connected by film hinge (8) to a base plate (4) on the duct, and a second a...	09/17/1985
4531549	Valve means and fluid transport system A valve having at least one passage through the valve body and terminating in a port at one end of the valve body, a stem means extending through the valve body having a stem operating means on one end thereof and having the other end thereof terminating ...	07/30/1985
4512703	Bottom silo unloader A silo unloader for unloading silage from a discharge opening in a bottom wall thereof includes a housing mounted in the opening having a downwardly extending discharge chute. The chute includes an inner sloping wall having a lower drip edge and a pair of...	04/23/1985
4475324	Valves Valve suitable for use in a relatively narrow elongate opening to an air duct in a window frame which opening faces inwardly towards an accommodation space. The valve has at least two, preferably three, separately made, elongate members made by extrusion....	10/09/1984
4475571	Sewer relief valve An improved sewer relief valve which is vandal-proof and automatically opens responsive to a back flow of sewage and drain water within a plumbing system....	10/09/1984
4468172	Jet pump plug A jet pump plug for a multi-nozzle jet pump is disclosed wherein the nozzles are accessible through a relatively small opening in the pump structure. The plug comprises a plurality of sections, each including a closure plate and a lever coupled thereto. E...	08/28/1984
4452617	Dirty gas inlet for a filter in a baghouse installation A dirty gas inlet arrangement for a filter housing including an inlet housing connecting an elongated outlet in a dirty gas supply manifold to the dirty gas chamber of the filter housing. The inlet housing is provided with a downwardly sloping bottom wall...	06/05/1984
4416287	Discharge valve for a blood pressure measuring device or the like A discharge valve for a blood pressure measuring device or the like, comprising a valve casing the interior of which is in fluid communication with an inflatable cuff and a pressure measuring device (gauge) and an air outlet leading to a flat valve seat l...	11/22/1983
4382725	Pneumatic outlet valve A pneumatic outlet is provided including a rotatable control valve having a body portion and a moment portion extending therefrom. The moment portion and the body portion each include edge portions which in closed position engage adjacent valve seats. The...	05/10/1983
4361310	Quick release drain plug A drain valve assembly for attachment to the threaded drain opening of an automobile crankcase is disclosed. A drain plug, which is engageable with the threaded drain opening of the automobile crankcase, is provided with an axially extending bore which de...	11/30/1982
4354665	Valve for opening and closing a fluid conduit A valve for opening and closing a fluid conduit of the type having a generally wide cross-section, the conduit having a transverse slit therein to allow for movement of a shut-off member into and out of registration therewith. The shut-off member has a sp...	10/19/1982
4103495	Flow control device for an irrigation ditch A device for controlling the flow of water between an irrigation ditch and an adjacent field. A conduit having a first end opening into the irrigation ditch and a second end opening into the field to be irrigated. The cover is pivotally attached to the fi...	08/01/1978
4059045	Engine exhaust rain cap with extruded bearing support means An engine exhaust rain cap of the type which is adapted to be clamped to an upstanding exhaust pipe and including a cover secured to a corner of a balance arm body which is pivotally mounted on the ears of the clamp. The balance arm body is a folded sheet...	11/22/1977
4043705	Reactor jet pump plugs The invention provides a tool for closing off the jet nozzles of jet pumps located in an almost inaccessible location inside the shell of a boiling water reactor. The tool suspended on a cord is lowered down through a narrow gap extending down along the m...	08/23/1977
3951130	Isolating damper for closing a duct An isolating valve or damper for the gas-tight closure of a flue or duct, comprising a frame or housing fitted in the flue or duct and a closure member operable between an open position and a closed position in which the member closes the flue or duct, wh...	04/20/1976

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Class 251/299 - Terminal