Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 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 piston transmits axial forces directly to the piston crown. The connecti... | 03/27/2012 |
| 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 embodiment, the mechanism is a sealing member configured to open at a thr... | 09/14/2010 |
| 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) includes a housing (2) formed of at least two housing parts ( | 07/13/2010 |
| 7614422 | Reed valve assembly The reed valve assembly of the present invention includes a reed cage and a retainer that includes in once piece two or more reed petals. The retainer is independently interlockable with the reed cage. As defined herein, independently interlockable is understood to ... | 11/10/2009 |
| 7600531 | Valve with check valve The invention relates to a valve with a central guide and a check valve. The check valve and valve form an integrated component, the check valve being formed by a band which is shaped into a ring and is arranged in an internal groove. ... | 10/13/2009 |
| 7435347 | Filter device and parts thereof and a method for operating of the filter device A filter device has a filter housing part (10) with a filter element (12) and can be detachably connected to another filter housing part (20). A valve (24) clears a fluid path in the interconnected state of the housing parts (10, 20 | 10/14/2008 |
| 7413007 | Vehicle air-conditioning system A vehicle air-conditioning system includes an air-conditioner and an air outlet for opening and closing an opening formed in a rear part of a vehicle body. A control unit causes the air outlet to open and close the opening in accordance with changes in air condition... | 08/19/2008 |
| 7392828 | Insertion part for inserting into a gas or liquid line An insertion part is provided in the form of a back-flow preventer and which can be inserted in a gas or liquid line. An insertion part is also provided that can be inserted into a gas or liquid line in the form of a flow regulator. The insertion parts are character... | 07/01/2008 |
| 7390176 | 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 structure defining the cylinder of the compressor and are spaced a dis... | 06/24/2008 |
| 7367803 | Multi user oral cleansing device, DentalJet This invention creates a convenient low cost water pressure driven multi user oral cleansing device, the DentalJet with exchangeable color coded nozzle/handle which is easy to use, needs no electricity. The invention uses a faucet attachable rotating diverter, a fle... | 05/06/2008 |
| 7367329 | Intake device for engine An intake device for an engine includes a fuel supply system for supplying fuel to an intake passage and a plurality of plates. The plurality of plates are positioned on an upstream side and a downstream side along a direction of a flow of intake air and arranged at... | 05/06/2008 |
| 7363939 | Bleed valve A bleed valve (1) for a pipe into which a non-return function is integrated. The bleed valve is preferably designed to be a thermal valve. ... | 04/29/2008 |
| 7350541 | Leakproof one-way valve for use with vacuum attachment A one-way valve allows air to be drawn from a collapsible, flexible, airtight bag using a vacuum source. When the vacuum source is removed, the one-way valve prevents air from re-entering the bag. The valve assembly comprises a base, a valve element supported by the... | 04/01/2008 |
| 7338475 | Electret enhanced automatic IV drip chamber shutoff An automatic stop valve formed in a container of a medical fluid administration system includes an electrical field that attracts the float and valve seat together to shut off flow from the exit port of the container when the fluid within the container is reduced to... | 03/04/2008 |
| 7337511 | Biological hazard protection body bag A biological hazard protection body bag comprises an non-transparent outer bag case and a transparent inner bag case, which transparent inner bag case provides a vacuum filtration device formed by a check valve and medical grade filter screen for achieving a vacuum ... | 03/04/2008 |
| 7331949 | Urinary catheter with check valve The present invention provides a novel construction for a catheter that includes backflow prevention in the form of a check valve, which keeps the flow of drained fluid material from reentering the patient. The catheter construction of the present invention provides... | 02/19/2008 |
| 7316240 | Exhaust system and mini-exhaust static pressure controlling apparatus thereof An exhaust system and a mini-exhaust static pressure controlling apparatus thereof for controlling a process area. The mini-exhaust static pressure controlling apparatus has an exhaust chamber and an auto release damping device. The exhaust chamber has an air inlet ... | 01/08/2008 |
| 7311104 | Method of making a filtering face mask that has an exhalation valve A method of making a filtering face mask, which method includes the steps of: (a) providing (i) a valve seat that comprises an orifice and a seal surface, wherein the orifice allows air to pass therethrough and is surrounded by the seal surface, and (ii) a single fl... | 12/25/2007 |
| 7310965 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 12/25/2007 |
| 7311119 | Valve apparatus A valve apparatus is small, and regulates a fuel amount by restricting a lift amount of a valve. A columnar portion is formed on a pump body. The columnar portion is inserted into a check valve and a washer formed with a protruding portion which protrudes outward fr... | 12/25/2007 |
| 7302962 | Vehicle pressure relief valve having peripherally secured flaps and method of manufacturing the same A pressure relief valve (12) for relieving air pressure from a passenger compartment (14) of a vehicle (10) includes a base (18) having a peripheral portion (30). A central opening (42) extends through the peripheral portion... | 12/04/2007 |
| 7302971 | Umbrella valve and assembly An umbrella valve includes an umbrella-valve body having a stem, a flexible umbrella, and a flange. The umbrella and the flange are each attached to, and extend radially outward from, the stem. The flange has at least one fluid passage. The umbrella valve can be pla... | 12/04/2007 |
| 7302967 | Reverse flow preventing device and electronic apparatus A reverse flow preventing device arranged in a flow path of fluid formed by a fan and an electronic apparatus equipped with the same. The reverse flow preventing device has a frame, a plurality of support shafts arranged about the center of the frame and mounted on ... | 12/04/2007 |
| 7290660 | Storage system having a disposable vacuum bag The present invention provides a storage system having a storage device having at least one polymeric sheet sealed along a portion of its' periphery to provide an opening to a storage space; a resealable closure structure adapted to seal the opening to the storage s... | 11/06/2007 |
| 7252110 | Membrane valve and second stage pressure reducer for two-stage underwater regulators incorporating said valve A membrane valve wherein the shutter disk is retained in contact with the valve seat during ejection of liquid or gas by means of one or more ribs that are substantially in contact with the shutter disk along one or more lines secant to the shutter disk and/or by me... | 08/07/2007 |
| 7251912 | Biodegradable device for irrigating seedlings and other small plants This invention is a device for irrigating tree seedlings and other small plants, to ensure that said plants stay moist in the critical few weeks following their planting. The device uses a bag, approximately 1 gallon capacity, constructed of biodegradable plastic, s... | 08/07/2007 |
| 7243682 | Annular one-way valve A one-way valve with an annular nozzle. The valve body is a truncated cone with an interior fluid manifold. The truncated cone section includes a lower retaining groove and a fluid groove. A fluid conduit connects the interior fluid manifold to the fluid groove. An ... | 07/17/2007 |
| 7243683 | Overpressure valve for the content of a package An overpressure valve for a packaging container is disposed on the inside of the packaging material comprising the packaging container. The overpressure valve comprises a base plate, a diaphragm, and a connecting element. The overpressure valve is relatively simple ... | 07/17/2007 |
| 7243676 | Combination umbrella and inverted bi-directional valve A combination valve including a valve body having an inverted bi-directional valve portion and an umbrella portion is disclosed. In accordance with one aspect of the invention, a combination valve includes a valve body with a substantially cylindrical portion defini... | 07/17/2007 |
| 7240768 | Flapper finger valve A flapper finger valve assembly for use in an exhaust system. The flapper finger valve includes a tube having a plurality of orifices therethrough. The flapper finger valve assembly also includes a plurality of flapper finger valves generally having a C-shape wherei... | 07/10/2007 |
| 7232108 | Exhaust valve for a bag An exhaust valve for a bag comprising a valve body having an exhaust opening communicating with a part between the inner and outer surfaces of the bag, a lid body detachably fitted to the valve body having a suction opening, a valve plate arranged above the upper en... | 06/19/2007 |
| 7228875 | Seal and bleed valve unit for electric batteries Sealing and breathing valve assembly for accumulators comprising: at least one substantially tubular collar associated to the cover of said accumulator and suitable for connecting the external environment with one or more breathing ducts made in said cover; an elast... | 06/12/2007 |
| 7222803 | Liquid dispensing apparatus A hand operated flexible bulb for use with a liquid dipensing apparatus 5, the bulb comprises an open ended neck 2 which is securable in an air tight manner to a liquid dispensing apparatus. The flexible bulb is provided with an air inlet 6 sepa... | 05/29/2007 |
| 7201284 | Vented container There is provided a spill proof cup assembly having a cap with at least one spout outlet, a cup with an upper open portion adapted to securely and sealingly receive the cap, and a thermoplastic elastomer, or similar elastomeric material, co-molded bottom portion wit... | 04/10/2007 |
| 7201189 | Reed valve and reed valve assembly A reed valve having a plate shaped support substrate with a valve hole formed in a central section passing through in a plate thickness direction is provided. A flexible plate-shaped reed covering the valve hole at one surface of the support substrate and having one... | 04/10/2007 |
| 7182093 | Vehicle pressure relief valve having centrally secured flaps and method of manufacturing the same A pressure relief valve (12) for relieving air pressure from a passenger compartment (14) of a vehicle (10) includes a base (18) having a central portion (26) and a peripheral portion (28). A plurality of openings (46... | 02/27/2007 |
| 7182413 | Valve seat for a control valve in a vehicle brake system A valve seat assembly for a control valve of a vehicle brake system includes a valve seat body. A valve passageway extends through a portion of the valve seat body. A groove is formed circumferentially in an outer surface of the valve seat body. The groove defines a... | 02/27/2007 |
| 7159412 | Compressor head, internal discriminator, external discriminator, manifold design for refrigeration recovery apparatus The compressor head, internal and/or external discriminator, and manifold design in general utilize ball valves on the suction and discharge of a cylinder head in the recovery of refrigerant liquid and/or vapor. The device facilitates the flashing of liquid refriger... | 01/09/2007 |
| 7153322 | Tubular stent with oval struts A vascular or endoluminal stent is adapted for deployment in a vessel or tract of a patient to maintain an open lumen. The stent constitutes a scaffold formed from a single open-ended tube having a multiplicity of through-holes in its wall. The through-holes are def... | 12/26/2006 |
| 7128089 | Flow control providing stable fluid flow An electro-mechanical variable fluid flow restrictor includes a support having a passage and a seal surface, a deformable seal that is engageable with the seal surface, and a bias member for exerting an electronically controlled variable bias against the deformable ... | 10/31/2006 |
