U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Today In History

Thomas Edison obtained a patent for an electrographic vote recorder.

Newsletter  PatentStorm News

Make the Most of Our Site

See this month's Top Inventors and Most Cited Patents.

Stay on top of the latest innovations by subscribing to an RSS feed.

Registered users: Manage your profile.

 

Class 251/5 - Fluid pressure actuated


Subclass of Class 251 - Valves and valve actuation
Definition: Devices which are actuated by fluid pressure.
No. of patents: 231
Last issue date: 03/09/2010


1            
NumberTitleIssue Date
7673846Tube configured pressure regulating valve
A pressure regulating valve includes a body having an outer surface, the interior of the body defining an inlet chamber adapted to receive a fluid at a process pressure, and an outlet chamber. The body includes at least one inlet passage communicating with the inlet...
03/09/2010
7665713Sleeve valve for residential and commercial irrigation systems
A sleeve valve includes a rigid mandrel with a plurality of openings and a generally cylindrical elastomeric sleeve that surrounds the mandrel. A generally cylindrical rigid sleeve valve housing surrounds the elastomeric sleeve and defines a control chamber between ...
02/23/2010
7419132Bladder valve
A bladder valve (10) is disclosed which comprises a valve body (12) having an inlet (16), an outlet (14) and a flow passage (17) connecting the inlet (16) and the outlet (14). The bladder valve (10) also includ...
09/02/2008
7350597Drilling system and method
A drilling system for drilling a bore hole into an earth formation, the bore hole having an inside wall. A drill string reaches into the bore hole from a surface, leaving a drilling fluid return passage between the drill string and the bore hole inside wall. A botto...
04/01/2008
7337660Method and system for reservoir characterization in connection with drilling operations
A method for analyzing reservoir fluids in connection with a drilling operation includes determining composition and isotopes of injection fluids injected into a wellbore during a drilling operation and production fluids recovered from the wellbore during the drilli...
03/04/2008
7331492Drip resistant dispensing nozzle
A dispensing nozzle method and apparatus is provided that may help in reducing the number of defects in integrated circuits during the manufacturing process. In one embodiment, the nozzle is configured such that at least a portion of the end of the nozzle that dispe...
02/19/2008
7325565Backflow valve
The backflow valve of the present invention includes a valve housing having a cavity therein with an inlet and an outlet to the valve cavity. A switch is in communication with the valve cavity and is moveable from an off position to an on position in response to liq...
02/05/2008
7316177Hydraulic hand pump with locking device
A method and apparatus is provided that includes a hand pump having a handle locking mechanism, a counter bored nut, pivoting links, and unloading valve assembly. The unloading valve assembly allows a pump operator to pump a larger volume of hydraulic fluid and/or t...
01/08/2008
7309333Medication delivery system having selective automated or manual discharge
A portable medication delivery system enables a patient to elect slow continuous auto-administration or rapid bolus self-administration of a fluid medication. The medication delivery system has an infusion pump, which includes a fluid storage chamber and a spring-dr...
12/18/2007
7302959Low-power wireless inflatable bladder damper for forced air heating, ventilation, and air conditioning systems
A low-power, wireless, inflatable bladder damper device for controlling the flow of air through an airflow channel, and a method of operation for the same. Rather than requiring power supply and/or control wiring for operation of a wireless damper device, a low-powe...
12/04/2007
7255321Pinch valve
A pinch valve is provided with a main body (10) accommodating a tube body (11), a cylinder body (2) having an upper cylinder portion (17) and a lower handle support portion (3), a piston accommodated in the cylinder portion, a pres...
08/14/2007
7255322Pinch valve system with extended life
There is provided a pinch valve system for controlling a fluid flow in a fluid flow path. The pinch valve system has an elastic sleeve member having a pair of outwardly extending elliptical folds on the circumference. The sleeve member is novel because the elliptica...
08/14/2007
7247129Outsert-forming method
A method and apparatus for forming informational items such as outserts and booklets may include folding a sheet of paper having product information printed thereon by making a plurality of folds in the sheet of paper to form a first folded article; (b) making a fol...
07/24/2007
7246786Heavy duty pinch valve
This invention provides a heavy duty pinch valve for use in industrial applications, such as railroad tank cars that is constructed with a sealed housing that is sufficiently sturdy to operate in tough environments and large material flows. The valve includes a weld...
07/24/2007
7185719Dynamic annular pressure control apparatus and method
A drilling system for drilling a bore hole into a subterranean earth formation, wherein at least a portion of the mud flow from the primary mud pump is diverted to the mud discharge outlet, thereby creating a backpressure system to readily increase annular pressure....
03/06/2007
7182723Informational item final folding apparatus
A method and apparatus for forming informational items such as outserts and booklets may include folding a sheet of paper having product information printed thereon by making a plurality of folds in the sheet of paper to form a first folded article; (b) making a fol...
02/27/2007
7178699Pinch faucet
The present invention provides a faucet for tapping a liquid stored under pressure of a gas in a container that has less moving parts subject to wear or breakage, and has a housing made of multiple parts which can be disassembled so the faucet mechanism can be easil...
02/20/2007
7178600Apparatus and methods for utilizing a downhole deployment valve
Methods and apparatus for utilizing a downhole deployment valve (DDV) to isolate a pressure in a portion of a bore are disclosed. Any combination of fail safe features may be used with or incorporated into the DDV such as redundant valve members, an upward opening f...
02/20/2007
7175586Methods of forming outserts
A method of forming an outsert having printed information thereon is disclosed in which a plurality of parallel folds are made in a sheet of paper in a first fold direction using a plurality of pairs of folding rollers and stop members to form an intermediate folded...
02/13/2007
7168444Flow through pressure regulator with pinch valve
A fluid pressure regulator includes a regulator housing having an inlet end and an outlet end; a flexible flow tube extending between the inlet end and the outlet end; a hollow piston located at a downstream location relative to a mid-portion of the flow tube in a d...
01/30/2007
7163618Multi-inlet port manifold for a medical waste receiver having an elevated filter element and tethered inlet port caps
A filter system especially useful in the treatment of waste material, in particular liquid waste material which may include particulate matter therein. The filter system includes a series of filters of progressively finer porosity in order to selectively eliminate p...
01/16/2007
7140590Pinch valve element for plumbing fixture flush valve
The present invention discloses a pinch valve for replacing a diaphragm valve in a plumbing fixture. The plumbing fixture includes an inlet chamber defining a fluid inlet and in fluid communication with an inside chamber defining a fluid outlet. The pinch valve incl...
11/28/2006
7121992Informational item forming machine and method
A method and apparatus for forming informational items such as outserts and booklets may include folding a sheet of paper having product information printed thereon by making a plurality of folds in the sheet of paper to form a first folded article, the folds in the...
10/17/2006
7118086Pinch valve with inlet and outlet ports
A pinch valve includes a body with a passageway extending therethrough, a flexible sleeve mounted within the body and surrounding the passageway, and a cavity between the sleeve and the body. An inlet opening provides control fluid flow into the cavity, while an out...
10/10/2006
7104275Pinch valve
A control valve includes an elastomeric flow tube, a plunger having first and second ends, and a pinch member connected to the first end of the plunger. The pinch member is situated adjacent the flow tube. A reference surface is positioned generally opposite the pin...
09/12/2006
7100887Method for emptying a supply line for coating units
A supply line for supplying coating application devices with coating substances, e.g., paint from one or a plurality of containers containing the coating substance(s), includes a valve device capable of displacing the coating substance in the supply line in a direct...
09/05/2006
7093828Methods and apparatus for clamping tools
The present invention is directed generally to tools that are high quality, strong, and lightweight. For example, various tools such as clamps may be made using parts containing a compound or alloy including magnesium. Magnesium may be for cast or extruded parts. In...
08/22/2006
7066211Device for compensating for pressure drop
The invention relates to a device for compensating for pressure drop in a product pipe through which a liquid flows, and a system comprising such a device. The device comprises a collapsible tube portion, which is connectible to the product pipe, and is characterise...
06/27/2006
7052208Discharge control system for a reservoir
A discharge control system for a reservoir having a pressure-communicating valve in a valve chamber with the inlet of the pressure-communicating valve connected the reservoir outlet aperture and the outlet of the pressure-communicating valve connected to a discharge...
05/30/2006
7052060Device and method for gripping at least one elongated element
Method and device for gripping one or more elongated element(s), which device includes two main gripping arms (1, 2) adapted to hold the element(s) between them. At least one first hydraulic cylinder (6, 7) is provided for moving the main gripping arms...
05/30/2006
7032875Bag closing apparatus
A bag closing apparatus including a frame structure, a cinching assembly and an actuator assembly. The cinching assembly includes at least three pivot arms, each pivot arm including an arcuate portion and pivotably connected to the frame structure. The pivot arms ar...
04/25/2006
7013926Plumbing leak testing apparatus
A plumbing pipe plug apparatus configured for insertion into a section of pipe and adapted to radially expand so as to engage the inner surface of the pipe and form a positive seal therewith is disclosed. The pipe plug is adapted with a conduit having a check valve ...
03/21/2006
7013925Accumulator tank assembly and method
Some embodiments of the present invention provide an accumulator tank assembly and method in which a flexible bladder is received within an accumulator tank. The accumulator tank and the flexible bladder can each have an inlet aperture through which fluid is receive...
03/21/2006
7011287Motor vehicle pinch valve
A pinch valve for automotive applications, wherein the pinch valve comprises a flexible hose, an extension seat cradling the flexible hose, a pinching extension aligned opposite the extension seat on the outside of the flexible hose, and a valve actuator that is ope...
03/14/2006
7011286Bag valve
The bag valve comprises an open-ended sleeve of pliant impermeable material, one end of which is removably clamped around the down-stream open end of a conduit for fluids. The other end of the sleeve, the downstream end, can be gathered into a fully or partially clo...
03/14/2006
6976664Free flow valve and element
A gasketless, straight-through bore fluid flow pinch valve and flexible, removable tubing element for improved sanitary conditions in production facilities. The valve casing is joined by fittings that enable separation of the casing to remove and replace the flexibl...
12/20/2005
6968861Gravitational safety valve for material delivery systems
A valve apparatus for controlling the discharge of material pumped by a material pump through a discharge hose, wherein the valve apparatus includes a substantially sealed flexible bladder in a casing to be located about a discharge hose, and a source of compressed ...
11/29/2005
6966373Inflatable sealing assembly and method for sealing off an inside of a flow carrier
An inflatable sealing assembly integrated with a flow carrier which seals the inside of the flow carrier upon detection of a physical condition (e.g. fluid pressure). The inflatable sealing assembly includes a housing, a compartment in the interior of the housing fo...
11/22/2005
6964413Booklet forming method and apparatus
A method and apparatus for folding a single sheet of paper into a booklet. The method includes depositing adhesive along a linear path on the single sheet of paper and folding the sheet by making a plurality of folds parallel to a first direction, thereby forming a ...
11/15/2005
6948696Pinch valves
A pinch valve has a resiliently flexible tubular valve member folded upon itself at an intermediate portion of the length of the valve member to establish a folded configuration including a longitudinally extending folded portion, preferably in the form of folds, an...
09/27/2005
1            
 
Sign InRegister
Username  
Password   
forgot password?