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8181669 |
Compliant check valve stop
A check valve (10) includes a valve housing (14) having at least one valve opening (16). At least one petal (12) is located in the valve housing (14) and is configured to substantially cover the at...
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8172554 |
Chemical liquid supplying apparatus
In a chemical liquid supplying apparatus, discharge accuracy of chemical liquid is enhanced, and durability of a flexible tube is enhanced. By the flexible tube incorporated into a pump housing, an...
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8162006 |
One-way valve for medical infusion lines and the like
A check valve for medical infusion lines and the like, includes a diaphragm made of elastic material set between a first tubular connector and a second tubular connector. The diaphragm includes an...
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8147227 |
Valve guide and spring retainer assemblies
Tapered valve guide and spring retainer assemblies are described for use in plunger pump housings that incorporate corresponding outwardly flared discharge and suction bores, as well as structural...
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8147226 |
Valve assembly for pressure washer pump
A pressure washer pump generally includes a pump housing that defines a cavity, an opening into the cavity and a bottom of the cavity generally opposite the opening. A valve assembly is disposed in...
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8141581 |
Compressor improvements
A linear compressor has a hollow piston with crown and sidewall. The piston reciprocates in a cylinder. A piston rod connects the piston to a spring. A connection between the piston rod and the...
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8136544 |
Sealing arrangement with a segmented seal and pressure relief
A sealing apparatus adapted for use in a pressure vessel such as a synthesis gas cooler. The sealing apparatus is of a segmented plate construction formed around an outer wall section of a conduit...
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8132558 |
Common rail fuel pump with combined discharge and overpressure relief valves
A high pressure piston fuel pump having a discharge check valve between the pumping chamber and a pressurized fuel reservoir and a pressure relief valve between the fuel reservoir and a passageway...
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8122911 |
Adjustable orifice for coal supply conduit
A variable orifice for use in connection with a conduit designed to convey particulate material comprising a set of semi-circular plates mounted on respective concentric shafts so that they may be...
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8118574 |
Radial suction valve assembly for a compressor
A suction valve for a reciprocating compressor includes a hollow cylindrical valve seat having a plurality of suction ports formed therethrough. The suction ports are covered by flaps moveably...
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8113226 |
Valve assemblies and related systems and methods
Check valve assemblies and related methods are described. A valve assembly comprises a housing having at least a first inlet passage and an outlet passage. A flow channel is disposed within the...
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8079385 |
Valve assembly
The present invention is directed to a pressure-responsive valve assembly which functions in the nature of a check valve to control fluid flow across the assembly. The assembly includes a valve...
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8074679 |
Y-type fluid end with replaceable suction module
A fluid end assembly for a high pressure pump receives a fluid from a fluid supply manifold and supplies the fluid to an outlet manifold. The assembly includes a housing with a removable suction...
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8069950 |
Environmental compressor protection assembly
A device that relieves lubricant pressure in a divider block lubrication system into a fluid reservoir, a container, or directly back into the compressor frame to which the tubing is connected....
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8069926 |
Method of controlling flow through a drill string using a valve positioned therein
A downhole valve comprises a tubular body and a valve member. The valve member is normally closed and in the closed position may prevent or restrict passage of a working fluid through the body. The...
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8069875 |
Ventilation member, ventilation member kit, and vented housing and vented tank using them
A ventilation member and a ventilation member kit are provided that can extend the time until fogging will be produced in a housing and also can shorten the time until the produced fogging will be...
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8066560 |
System and method for information handling system floor tile cooling airflow measurement
External airflow rates from floor vents that provide chilled air to information handling systems are measured with a disposable tool to ensure compatibility of the information handling systems'...
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8065816 |
Dryer drum vane
A dryer has complex angled surfaces and a plurality of grip elements thereon. The angled surfaces have varying angles of inclination relative to a base of the dryer vane and the characteristics of...
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8056156 |
Vacuum relief unit and method for a pool
A vacuum relief unit and method for venting air into a pool pumping system when a pressure level within the system drops below a first pressure level limit. The unit includes a closed air chamber,...
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8037899 |
Backflow preventer
A first check valve has a narrow flow path portion (68) formed between an arcuate portion (46) of the outer periphery (45) of a support member and a second enlarged-diameter portion (11) of a...
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8011364 |
Exhalation valve for use in an underwater breathing device
An underwater breathing device, such as a snorkel, may include an exhalation valve. The exhalation valve is configured to produce positive end-expiratory pressure in the airway of a user of the...
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8011290 |
Apparatus for preparing a beverage suitable for consumption, such as coffee
A beverage preparation apparatus with a three-way valve that includes an inlet; a first outlet; a second outlet; a first member movable between first and second extreme positions under the...
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8011363 |
Exhalation valve for use in a breathing device
An underwater breathing device, such as a snorkel, may include an exhalation valve. The exhalation valve is configured to produce positive end-expiratory pressure in the airway of a user of the...
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8006716 |
Parent-subsidiary guide float valve
A floating valve providing a parent-and-subsidiary flow-guided floating valve of low pressure drop, high throughput and highly flexible operation maintaining high efficiency within a wide range of...
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8006325 |
Pumped shower drain system
A pumped shower drain system (10) comprises a shower base (12), a waste water unit (14) provided on the shower base (12) and having a waste water inlet (28) and a waste water outlet (30), and a...
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7997296 |
Air valve device
An outdoor lighting device includes a housing, at least one power supply device and at least one arrayed lighting unit. The housing has a surface forming at least one reflection zone and the...
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7992588 |
Open state maintainable valve device for an inflatable article
A valve device includes a tubular member fitted into an inflatable article, a flexible diaphragm having a peripheral region which engages a valve seat of the tubular member through a mounting...
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7971603 |
Header for a heat exchanger
Disclosed herein is a header for a heat exchanger that has an inflow side, an outflow side, a bypass port therebetween, and a pressure-sensitive flapper valve proximal the bypass port. As pressure...
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7967027 |
Simple diverter valve for a roman tub with replaceable cartridge including at least two checks
A diverter valve includes a housing and a diverting stem cartridge. The housing has a top and a bottom and a stem cartridge receiving chamber. The housing also has an inlet port proximate the...
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7959420 |
Constant torque unloader system for a compressor
An unloader system for a reciprocating gas compressor includes an unloader valve assembly which may be installed as the suction valve assembly or the discharge valve assembly of the compressor. The...
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7954509 |
Check valves with hinge shafts retained by welding
Methods and apparatus are provided for retaining a hinge shaft of a check valve with a bushing. The check valve includes a valve body defining a flow passage therethrough; a hinge shaft; a bushing...
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7950910 |
Piston cartridge
A piston cartridge having a piston chamber, an inlet port, an outlet port, and a piston moveable between a first position and a second position. Also, the cartridge includes a first barrier...
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7931817 |
Additive dispensing device and a thermally activated additive dispensing filter having the additive dispensing device
An additive dispensing device is provided. The additive dispensing device includes a reservoir configured to contain a supply of an additive. The reservoir is in fluid communication with a...
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7909056 |
Connector for transferring fluid and method of use
A connector for transferring fluid and method therefor. The connector may have a first port, a second port, and a third port which may be coupled together at a main channel with a first valve...
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7905074 |
Apparatus and method for the automated manufacture of self-sealing inflatable dunnage bags
An apparatus and method for the automated manufacture of self-sealing inflatable dunnage bags includes a bag making machine. The bag making machine includes a plurality of sheet roll spindles and a...
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7905252 |
Apparatus and methods to dispense fluid from a bank of containers and to refill same
A fluid dispensing system includes a manifold having a fluid outlet port to dispense fluid from a plurality of fluid supply containers. The system additionally includes a plurality of valves...
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7905246 |
Low pressure measurement devices in high pressure environments
The present invention presents various novel approaches to solving the problems inherent in measuring biological pressures in high pressure systems. Thus, to protect a pressure transducer exposed...
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7906017 |
Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water
A circulation system for bodies of water. In one set of embodiments for larger bodies of water, modified horizontal plate designs are provided at the entrance of the draft hose. The plate designs...
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7882836 |
Diaphragm valve for a respirator
A diaphragm valve is provided, in which there is improved sealing of a closing cover (15) against the valve housing (3). The seal includes a cylindrical sealing washer (25), which is connected to...
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7850437 |
Multi-port suction reed valve with optimized tips
A reed valve having a plurality of tips and associated recesses is provided as a compressor suction valve with each valve tip coacting with a suction port. The recesses are located in the housing...
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7846143 |
Portable urinal with a shaped inlet and a membrane valve
A portable urinal that includes a container defining a liquid reservoir and a spout extending therefrom. The spout has an inlet for receiving a liquid. A valve assembly is disposed within the...
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7819131 |
Springless compressor valve
A valve closure system particularly suited to reciprocating compressors employs no springs and preferably urges the valve in the closed direction by the force generated from magnets positioned to...
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7806135 |
Variable flow valve
A variable flow valve includes a housing, a valve element, an urging member, a first valve, a second valve, and a guide flow passage. The housing has an inlet opening, and an outlet opening. The...
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7793683 |
Active intake pressure control of downhole pump assemblies
Progressive cavity pump assemblies including one or more mechanisms adapted to regulate intake pressure of the main pump between a minimum intake pressure and a maximum intake pressure. In one...
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7784483 |
Backflow preventer
A backflow preventer that generally includes a modular fluid arrangement having a modular strut, a one-piece modular cage, a relief valve fluidly connected to the modular cage, and at least one...
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7779859 |
Flapper with insert stops for check valve
A check valve is provided that includes a valve body, a stop bar, a flapper, and a protrusion. The valve body has a flow channel extending therethrough, a first stop support, and a second stop...
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7753070 |
Insertable component which can be inserted into a gas or liquid line
An insertable component that is embodied as a non-return element and/or as a through-flow regulator is provided which can be inserted into a gas or liquid line. The insertable component (1)...
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7748403 |
Pressure maintaining valve, tool, set and fuel injection system
A pressure-holding valve for a fuel injection system with a high-pressure region and a low-pressure region, the valve having with a valve housing having a first connection that can be connected to...
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7748385 |
Valved holding chamber for use with an aerosol medication delivery system
The present invention pertains to a valved holding chamber suitable for use in an aerosol medication delivery system. The valved holding chamber includes a housing and a mouthpiece coupled to the...
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7740023 |
Check valve assemblies and related methods
Check valve assemblies and related methods are described. A valve assembly comprises a housing having at least a first inlet passage and an outlet passage. A flow channel is disposed within the...
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