Did You Know...
...that Thomas Edison's patent application on his phonograph was approved by the Patent Office in just seven weeks? In contrast, it took Gordon Gould, the inventor of the laser, 30 years to obtain his patent -- finally awarded in 1988!
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| Number | Title | Issue Date |
| 8113235 | Apparatus and methods for facilitating prosthesis donning, doffing, retention, and fit Apparatus and methods for improved prosthesis donning, doffing, retention, and fit. A valve located in a prosthetic socket port includes a body, a core, a spring located partially within the core, a diaphragm, and a maintained operator. The operator includes a reces... | 02/14/2012 |
| 7469713 | Check valve with locking key and pull cord A check valve for an inflatable device comprising a poppet urged by a conical spring to annularly seal uniformly around its entire periphery to assure more uniform cracking pressure about its entire periphery. In one embodiment the check valve comprises a locking ke... | 12/30/2008 |
| 7448406 | Hydraulic coupler pressure relief tool The hydraulic pressure relief tool opens a check valve in the male portion of a hydraulic line coupler. The male portion has a locking ball receiving groove. The tool includes a male coupler holder and a coupler retainer that are pivotally connected together. The ma... | 11/11/2008 |
| 7357152 | Releasable non-return valve The invention relates to a releasable non-return valve, in which a connection between a working chamber and a connector chamber may be closed by a non-return piston and opened by the opening movement of a release piston which may be pressurized with a release pressu... | 04/15/2008 |
| 7337796 | Safety relief valve having a low blow-down value and spring therefore A safety relief valve is provided that comprises a body comprising a chamber therein and an inlet and an outlet, the inlet comprising an inlet valve seat; a disk member closeable on the inlet valve seat; and a mechanism in the body biasing the disk member to rest on... | 03/04/2008 |
| 7325569 | Butterfly valve with integral split flapper relief valve A valve is provided that includes a valve housing, a valve element, and a flapper. The valve housing has a passage. The valve element is rotationally mounted in the passage and moveable between an open position and a closed position. Additionally, the valve element ... | 02/05/2008 |
| 7300637 | Sterilization container kit A sterilization container holds instruments during a sterilization process. It has an enclosure with an opening into the enclosure and an adapter at the opening. Various inserts such as semi-permeable filters and blocking plates may be placed into the adapter. ... | 11/27/2007 |
| 7273065 | Inflation/deflation valve for cargo dunnage A valve assembly for a dunnage bag wherein in the valve body a valve diaphragm is mounted on a shaft and is supported by a mounting bar such that the valve diaphragm may be reciprocally moved from the closed position to the open position by a simple axial push on th... | 09/25/2007 |
| 7270145 | unloading/venting valve having integrated therewith a high-pressure protection valve The invention relates to valves for air compressors, and more particularly, to an unloading/venting valve having integrated therewith a high-pressure protection valve where a pressure reducing valve has a discharge port in communication with the air system and a ven... | 09/18/2007 |
| 7224532 | Optical uses diamondoid-containing materials Novel optical devices based on diamondoid-containing materials are disclosed. Materials that may be fabricated from diamondoids included diamondoid nucleated CVD films, diamondoid-containing CVD films, molecular crystals, and polymerized materials. Devices that may ... | 05/29/2007 |
| 7195032 | Unidirectional, adjustable flap valves The invention provides a flap valve for controlling the air pressure within a protected space defined by walls, the flap valve including a valve frame attachable to an opening made in the walls, a valve flap, articulated at least indirectly to the frame and being su... | 03/27/2007 |
| 7178554 | Ultrasonically controlled valve An ultrasonically operated valve a source of ultrasonic energy for excitation of a pressurized liquid. The vibration of the ultrasonic horn imparts a pulsing of the pressure of the liquid within the valve. Selection of a sealing mechanism that responds at a differen... | 02/20/2007 |
| 7155777 | Closure mechanism for hinged devices A closure mechanism for hinged devices having an upper member and a lower member. The closure mechanism includes a track disposed on the upper member and at least one support arm pivotally attached to the lower member. A biasing element is adapted to urge the suppor... | 01/02/2007 |
| 7153319 | Trocar system having shielded trocar A trocar system is provided which preferably includes a cannula having an elongate cannula body. The cannula body includes medial and distal portions thereof having a first diameter and a proximal portion thereof connected to the medial portion and having a second d... | 12/26/2006 |
| 7144739 | Pressure measurement and relief for microwave-assisted chemical reactions A pressure-sealing, pressure-monitoring closure for non-invasively sealing a reaction vessel to a defined release pressure in microwave-assisted chemistry is disclosed. The closure includes a pressure-resistant, microwave-transparent reaction vessel, one portion of ... | 12/05/2006 |
| 7047763 | Constant differential pressure valve To provide a constant differential pressure valve which is compact in size and can be realized at low cost. In the constant differential pressure valve according to the present invention, a pipe forming a body thereof not only accommodates internal structures... | 05/23/2006 |
| 7037303 | Urinary flow control valve A flow control valve (22) such as for a catheter (10) allows discharge of urine from a bladder (12) by manual actuation. The valve (22) may be a double-duckbill valve (22) with a single slit (62) at one apex (60a | 05/02/2006 |
| 7011076 | Bipolar valve having permanent magnet A solenoid for use in valves used in evaporative emission control systems, such as canister purge valves or vent solenoid valves. The solenoid includes a housing having an inlet port and an outlet port. The housing further includes a guide element having a bobbin se... | 03/14/2006 |
| 7011314 | Floating seal assembly for a trocar A seal assembly used in combination with a trocar assembly to maintain sealing engagement with the exterior surface of medical instrument, which may have different size diameters, introduced into the trocar assembly so as to maintain adequate insufflation pressure w... | 03/14/2006 |
| 6981852 | Strainer and valve release A combined strainer and valve release structure formed as a unitary part of polyethylene with the strainer having a perforated wall and the valve release having a pushrod located on one side of the wall and an actuator tab located on the other side of the wall, with... | 01/03/2006 |
| 6941602 | Self adjusting, contouring cushioning system A cushion for seats, wheelchairs, mattresses, etc. is disclosed. The cushion includes fluid-filled cells. Each cell is in fluid communication with adjacent cells via conduits. Constrictures such as check-valves and duckbill valves may be located inside the conduits ... | 09/13/2005 |
| 6938597 | Variable spring force intake valve assembly Disclosed herein is a variable spring force intake valve for use in two- or four-stroke internal combustion engines. The device comprises an intake valve body and a torsion spring attached to a gear and rod assembly. Manipulation, via manual or automated means, of t... | 09/06/2005 |
| 6823905 | Inflation valve assembly for a dunnage or cargo air bag An inflation valve assembly, for a dunnage or cargo air bag, comprises an annular flange member which is adapted to be heat-sealed to an interior surface portion of one of the plies of the inflatable bladder of the air bag, and an externally threaded nipple portion ... | 11/30/2004 |
| 6820645 | Unlockable non-return valve for very high system pressures An unlockable non-return valve reduces the tendency of the poppet piston to jam by providing a first insert that has a guide diameter for the poppet piston over just a short section of its end side facing the piston collar, and wherein a supporting ring is arranged ... | 11/23/2004 |
| 6810862 | Fuel tank vapor relief valve and method of making same A diaphragm operated pressure responsive valve has its inlet connected to a fuel tank vapor line and the valving chamber openly connected to the storage canister and to the engine air intake manifold vapor purge control valve. The diaphragm is operable to vary the s... | 11/02/2004 |
| 6766824 | Fluid control valve and a feedback control system therefor The valve comprises a flexible resilient valve member which is positioned in a flexible fluid line in a fluid-tight relationship therewith. An actuating element, such as a ring-shaped member, surrounds the valve member, and an actuating coil is positioned adjacent t... | 07/27/2004 |
| 6648012 | Non-return valve override device An improved non-actuated non-return valve, the valve including a non-magnetic valve body having a substantially hollow interior portion in communication with a gas inlet and a gas outlet. A mechanically biased flow check assembly is positioned within the ... | 11/18/2003 |
| 6626204 | Cylinder valve assembly with check valve An accommodation portion (53) is formed at a position where it faces a check valve member (42) through a chamber inlet (41a) of a check valve chamber (41). An opening means (51) is attached in the accommodation portion (53). This opening means (51) switch... | 09/30/2003 |
| 6607366 | Variable clearance system for reciprocating compressors An unloader system is provided for a reciprocating gas compressor. The system includes an unloader valve assembly including a valve member controlling flow between compressor cylinder and a clearance bottle. Opening and closing of the valve member is cont... | 08/19/2003 |
| 6601603 | Clean-in-place air-blow valve An air-blow valve configured for clean-in-place capability is provided. The valve comprises a valve body defining a valve seat and internal fluid passageways. The valve further comprises valve components disposed within the valve body, including a plug, a... | 08/05/2003 |
| 6578604 | Ball valve with slot for continuous flow The invention concerns a device for controlling a fluid flow, characterised in that said device comprises second valve arrangement means interposed in the circuit in series with first valve arrangement means (20, 22, 34), and wherein a second mobile closu... | 06/17/2003 |
| 6537258 | Valve for medical infusion lines and the like A check valve and, in particular, an anti-siphon valve, for medical infusion lines and the like, including an axial upstream passageway and an axial downstream passageway, staggered and parallel with respect to each other, and a diaphragm of elastic mater... | 03/25/2003 |
| 6530751 | Device for controlling air filling and exhausting of an air cushion A device for controlling air filling and air exhausting of an air cushion includes a casing provided inside with a motor controlled by a wire controller and a fan blade, and an upper cover mounted on the casing. An air-exhausting nozzle closed by a film i... | 03/11/2003 |
| 6513556 | Flexible hose passive shut down system The flexible hose assembly 10 interconnects a portable tank and another tank for transmitting hazardous fluids. A back check housing 34 contains a valve member 56 and a seating surface 58 for closing off flow through the back check housing. A flexible hos... | 02/04/2003 |
| 6508270 | Shut-off valve The present invention relates to a shut-off valve of limiting flow to a single direction, and a shut-off valve of removing air from the sack and charging the sack with air as well. The shut-off valve has an air passage of a flat and substantially cylindri... | 01/21/2003 |
| 6488479 | Variable pressure oil pump A variable pressure oil pump assembly for use with a vehicle having a controller includes a pump body having an inlet, an outlet, a valve chamber, a first passage disposed between the inlet and the valve chamber, and a second passage disposed between the ... | 12/03/2002 |
| 6361288 | Variable clearance system for reciprocating compressors An unloader system is provided for a reciprocating gas compressor having a cylinder, a piston reciprocably mounted in the cylinder, a rotatable crankshaft connected to the piston, a suction valve assembly, and a discharge valve assembly for selectively co... | 03/26/2002 |
| 6289927 | Pressure control valve This invention provides a pressure control valve 20 including a valve plug 30 facing a seat As at a relief port A that communicates with a pressure circuit 46, and a spring 32 pressing the valve plug 30 against the seat, and when the fluid pressure in the... | 09/18/2001 |
| 6244294 | Radiator pressure release valve for a temperature control system A radiator pressure relief valve is disclosed for transferring fluid from a radiator to an overflow bottle to relieve pressure in the radiator. The valve includes a housing with an internal chamber and an inlet and outlet communicating with the chamber. A... | 06/12/2001 |
| 6237693 | Failsafe safety valve and method A subsurface well safety valve having a flow tube telescopically movable in a housing for controlling the movement of a valve closure member. A piston and cylinder assembly actuates the flow tube and is in communication with hydraulic control fluid from t... | 05/29/2001 |
