Celebrity Inventors
Walt Disney was no Mickey Mouse inventor. He devised a serious animation camera which he patented. With the device, his company created "Snow White".
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.
| Number | Title | Issue Date |
| 8109745 | Floor pump A floor pump includes a base; and a cylinder assembly having a first end coupled to the base and a second end, with a cross-sectional area of the first end of the cylinder assembly being larger than the second end of the cylinder assembly. A linkage assembly is part... | 02/07/2012 |
| 8105058 | Drywall mud pump with improved connection between the piston and the rod Drywall mud pump for pumping drywall joint compound, for instance, from a bucket into a drywall tool. The pump includes a cylinder, a piston, a rod, and a means, or a connection structure between the piston and the rod, for allowing the end of the rod to move latera... | 01/31/2012 |
| 7841844 | Refrigerants suction guide structure for reciprocating compressor A refrigerant suction guide structure of a reciprocating compressor is provided. The refrigerant suction guide structure includes a cylinder having an accommodating space inside, a piston having suction channels through which refrigerant is inhaled inside and insert... | 11/30/2010 |
| 7357626 | Suction valve for reciprocating compressor A suction valve for reciprocating compressor includes a fixation part, which receives a driving force of a reciprocating motor, and is fixed-combined to the front end surface of a piston performing linear reciprocal movement in the cylinder, a switching part for swi... | 04/15/2008 |
| 7351044 | Multi-stage piston type compressor In order to achieve a high level of impermeability with a low closing force for the sealing elements of a multistage piston compressor, the overflow channel (19) in the valve piston (9) opens into at least two passages (26, 27) and the sealing p... | 04/01/2008 |
| 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 |
| 7275477 | Piston assembly for air pump A piston assembly of an air pump is provided herein. The piston of the piston assembly has a through exhaust channel along the direction of the piston's back-and-forth movement. The exhaust channel is made up of two aligned exhaust holes, and a space is preserved at... | 10/02/2007 |
| 7267251 | Draw back pump A piston pump dispenser having a reciprocating piston pump arrangement which, in a dispensing stroke, dispenses fluid from an outlet and, in a charging stroke, to draw fluid from a reservoir also draws back fluid from the outlet through which fluid is dispensed in t... | 09/11/2007 |
| 7255248 | Plug style pump The embodiment of the invention are directed to a dispenser assembly having a reservoir bottle with an opening for fluid communication. The opening is formed to receive a housing cap and a dispensing pump such that the dispensing pump is sealingly engaged to the bot... | 08/14/2007 |
| 7243821 | Product dispenser comprising a tappet-activated pump The dispenser comprises a reservoir and a pump that is activated by a tappet, comprising a pump body that includes a tubular part with a smaller gauge than that of the reservoir, covering the piston, and an annular spacer by means of which it is tightly mounted agai... | 07/17/2007 |
| 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 |
| 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 |
| 7137792 | Piston pump for high viscous materials In a piston pump (1) having a differential piston (12) positioned in a cylindrical housing (11) and translationally drivable, a first pressure chamber (13) of the differential piston (12) is connectable to a second pressure chamber... | 11/21/2006 |
| 7073346 | Compressor head, internal discriminator, external discriminator, manifold design for refrigerant recovery apparatus and vacuum sensor 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... | 07/11/2006 |
| 7063520 | Suction valve assembly of reciprocating compressor In a reciprocating compressor including a piston slide-inserted into the compression space of the cylinder, having a gas path therein, inducing a fluid into the compression space through the gas path and varying a volume of the compression space while performing a l... | 06/20/2006 |
| 7001156 | Structure of an air inflation device An improved structure of an air inflation device is disclosed. External air is drawn to the motor and cylinder to provide rapid cooling so that the efficiency of the motor is maintained. In the present invention, a plurality of air filters is used to filter air. The... | 02/21/2006 |
| 6979184 | Manual negative pressure pump device A manual negative pressure pump device comprises a suction cylinder, a handle, a pull, a piston, and an expandable spring which forms a vacuum absorbing device. A front end of the suction cylinder is a thread post with outer thread. The thread post has a central thr... | 12/27/2005 |
| 6960068 | Center valve sleeve retention system for an oscillating pump A pump (10) includes an impeller (12) positioned in a housing (11). A valve assembly (13) is positioned within a valve sleeve (25) which is carried by the impeller (12). The impeller (12) is carried by an armature ( | 11/01/2005 |
| 6953051 | Valve plate structure Disclosed is a valve plate structure comprising: a suction valve for inhaling a low pressure of coolant through a linear reciprocating movement of a piston and an opening and closing operation in response to the back-and-forth movement; a valve plate coupled with th... | 10/11/2005 |
| 6923364 | Method for manufacturing air compressor assembly A method for manufacturing an air compressor assembly including, between a tank welding step and a final assembling step, a step of submerging a welded tank into a dip tank that contains cooling liquid treated with a corrosion inhibitor. In a preferred embodiment, i... | 08/02/2005 |
| 6783333 | Air compressor An air compressor includes a machine base, a transmission device, a cylinder, a valve, an automatic pressure-releasing valve and a manual pressure-releasing valve. When a pressure gauge indicates that air pressure is excessive, surplus pressure can be released eithe... | 08/31/2004 |
| 6616427 | Vacuum-assisted pump A self-priming centrifugal pump including a supplementary vacuum pump and a float valve. The vacuum pump serves to draw liquid to the pump for priming and the float valve shut of flow to the vacuum pump when liquid reaches a predetermined level to prevent... | 09/09/2003 |
| 6394773 | Pump for concentrate packages A pump for delivering product from a product package to a nozzle. The pump may include a housing with a first port, a second port, and an interior. The first port mates with the product package and the second port mates with the nozzle. A first check valv... | 05/28/2002 |
| 6318979 | Piston pump The invention relates to a piston pump for a hydraulic slip-controlled vehicle brake system. The invention embodies the piston pump with a hollow piston, in whose circumferential wall one or more valve holes are made, which are covered by a bandlike valve... | 11/20/2001 |
| 6315534 | Air compressor having easily assembled structure An air compressor includes a pressure gage attached to a cylinder housing, a compression device having a piston container slidably received in the cylinder housing for supporting a compression valve and a positioning block and a valve piece and a limiting... | 11/13/2001 |
| 6280163 | Spring blade intake valve for air compressor An air compressor includes a piston slidably received in a housing, and a sealing ring engaged between the piston and the housing. The piston includes an aperture for air to flow into the housing. A spring blade has one end secured to the piston and the o... | 08/28/2001 |
| 6200110 | Air compressor An air compressor includes a housing having a tube extended from the top and having a passage communicating the housing with the tube and having a tapered surface. A piston is slidably received in the chamber of the housing and is forced to move along the... | 03/13/2001 |
| 6164936 | Vertical reciprocating pump having easily installed piston with flap valves A vertically reciprocating pump is described, characterized by a piston which has a support including a hub extending downwards and supporting reinforcement legs, the hub having a rod to which it is translatably coupled passing therethrough, and by a valv... | 12/26/2000 |
| 6116873 | Floor pump A floor pump consists of a pump seat, a pumping rod, a pivoting member, an air nozzle, and an air guiding hose. The pump seat is composed of a cylinder and a base. The cylinder is provided in the bottom end thereof with a cross through hole in communicati... | 09/12/2000 |
| 6102679 | Air compressor The air compressor of the present invention includes an air storage tank with a hollow cylinder having a closed lower end mounted in the upper wall of the tank, so as to project within the interior of the tank. A drive motor mounted on the tank has a pist... | 08/15/2000 |
| 5975360 | Capped piston pump A disposable plastic pump for dispensing liquids is disclosed which comprises two basic unitary, preferably all plastic, elements: a chamber forming body having an open outer end and an inner end in fluid communication with a liquid reservoir, and a pisto... | 11/02/1999 |
| 5950555 | Bilge pump for a personal watercraft A bilge pump for removing water from a personal watercraft such as a kayak or a decked canoe that has a hull and a deck attached to the hull forming a cockpit opening for an operator includes a pumping device secured within the hull and below the deck. A ... | 09/14/1999 |
| 5927957 | Plunger device and method of making and using the same thereof New plunger having a cylindrical hollow body 20 or 20B, a handle 30, 30A, or 30B, an outlet hose 40, an outlet tip 42, and a valve or flap 50, 60, or 70 that is able to control the air flow within the hollow 25 of the cylindrical body 20 or 20B. Valve or ... | 07/27/1999 |
| 5915930 | Bellows operated oscillating pump An oscillating pump (10) includes a housing (11) which carries the components thereof. These components include an electromagnetic coil (24) surrounding an armature (23) carried by an impeller (12) which is positioned longitudinally between an inlet area ... | 06/29/1999 |
| 5782621 | Manual pump with inherent vacuum limit A vacuum pump useful in penile erection systems is provided. The vacuum pump comprises a piston in a cylinder with intake and exhaust valves. The vacuum producing outstroke is powered by a spring having sufficient force to draw a vacuum no higher than the... | 07/21/1998 |
| 5722817 | Noise-reducing apparatus for linear compressor A noise-reducing apparatus for a linear compressor which can significantly reduce noise by forming a multistage silencer in the suction side of a refrigerant passage of a linear compressor in which an axial flow valve system is adopted and therein a plura... | 03/03/1998 |
| 5676277 | Disposable plastic liquid pump A disposable plastic pump for dispensing liquids is disclosed which comprises two basic unitary, preferably all plastic, elements: a chamber forming body having an open outer end and an inner end in fluid communication with a liquid reservoir, and a pisto... | 10/14/1997 |
| 5634574 | Bakery mix dispenser The present invention, in one form thereof, is an ergonomically useful dispensing assembly including a short dispensing tube adapted to be coupled at its inlet to a mixing bowl outlet. The outlet of the dispensing tube is coupled, for example, to a nozzle... | 06/03/1997 |
| 5623974 | Spray product and pump to supply air under pressure to the dispenser A dispenser having a manually-operated dispensing valve assembly has a container for accommodating a spray product. The bottom of the container has a recess adapted to cooperate with a tube used to deliver air under pressure from an air pump into the cont... | 04/29/1997 |
| 5620314 | Hand-operated liquid pump with removable parts A hand-operated, portable, easily-manufactured liquid pump offering efficiency through advanced plunger design, ease of repairability, and enhanced versatility through use of a select group of inlet and outlet accessories. The pump preferably includes a c... | 04/15/1997 |
