Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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 |
| 7967029 | Duct optimization to prevent freezing In a device for conveying liquids or moist gases through a closed duct in a vehicle fuel cell power systems, freezing of the duct is prevented by providing a part of its internal wall flow passages or flow chambers with a nonwoven material. The nonwoven material abs... | 06/28/2011 |
| 7344363 | Remedies to prevent cracking in a liquid system A liquid cooling system utilizing minimal size and volume enclosures, air pockets, compressible objects, and flexible objects is provided to protect against expansion of water-based solutions when frozen. In such a system, pipes, pumps, and heat exchangers are desig... | 03/18/2008 |
| 7278625 | Metering valve A valve device for metering a fluid for metering a urea-water solution for the aftertreatment of exhaust gases from internal combustion engines, which contains elements that flex or are compressed under high pressure so that the volume of the working chamber can cha... | 10/09/2007 |
| 7201012 | Remedies to prevent cracking in a liquid system A liquid cooling system utilizing minimal size and volume enclosures, air pockets, compressible objects, and flexible objects is provided to protect against expansion of water-based solutions when frozen. In such a system, pipes, pumps, and heat exchangers are desig... | 04/10/2007 |
| 7156239 | Filter unit for freezable liquids, particularly for a metering unit of an exhaust gas treatment device A filter unit for liquids undergoing freezing for a metering unit of an exhaust gas treatment unit has a housing having an outer member and a lid member. At least one filter insert is arranged in the housing. An elastically deformable casing part is provided that su... | 01/02/2007 |
| 7146700 | Method of manufacturing a pressure damper for a fluid conduit A pressure damper for use with a fluid conduit, such a fuel rail in a vehicular fuel delivery system, is manufactured by deforming a workpiece, such as by stamping, hydroforming, or magnetic pulse forming, to have an enlarged portion of predetermined size and reduce... | 12/12/2006 |
| 7061104 | Apparatus for conditioning power and managing thermal energy in an electronic device In one aspect, the present invention is a technique of, and a system for conditioning power for a consuming device. In this regard, a power conditioning module, affixed to an integrated circuit device, conditions power to be applied to the integrated circuit device.... | 06/13/2006 |
| 6805154 | Freeze protection device for wall hydrants/faucets A freezeless wall hydrant has a fluid inlet end connected to a source of pressurized water, and a fluid outlet end. A check valve is placed in the bore of the valve body and is spring loaded to open only when extreme water pressure within the inlet valve lifts a spr... | 10/19/2004 |
| 6769446 | Freeze protection device for wall hydrants/faucets A freezeless wall hydrant has a normally horizontal fluid inlet tube with an interior end and exterior end. A hollow valve fitting is rigidly secured to the interior end of the inlet tube for a connection to a source of pressurized fluid. A valve seat is located on ... | 08/03/2004 |
| 6532986 | Freeze protection device for wall hydrants/faucets A freezeless wall hydrant has a fluid inlet end connected to a source of pressurized water, and a fluid outlet end. A check valve is placed in the bore of the valve body and is spring loaded to open only when extreme water pressure within the inlet valve ... | 03/18/2003 |
| 6357482 | Surge suppression apparatus A surge suppression apparatus (1) comprising a chamber (7) for receiving a liquid subject to pressure variation effects that are to be suppressed and an inlet (9) through which liquid is suppliable to the chamber (7), the arrangement being such that, in u... | 03/19/2002 |
| 6338364 | Insert for freeze protecting water pipes The invention is a round, flexible, hollow tubular insert to be affixed in a central position within pressurized sprinkler pipes, water pipes and water mains. The insert will be employed to prevent sprinkler pipe, water pipe and water main ruptures due to... | 01/15/2002 |
| 6119729 | Freeze protection apparatus for fluid transport passages The present invention provides a fluid handling apparatus for use in cold temperature conditions. In this respect, the apparatus of the present invention comprises a freeze protected conduit having a length comprising an elongated conduit for conveying or... | 09/19/2000 |
| 5746254 | Water-escape device for freeze-prone water conduit A water-escape conduit connector for use in the exterior above-ground vertical section of a water-discharge conduit having an interior vertical conduit segment communicating with a sump pump container or liner 14. The water-discharge conduit comprises an ... | 05/05/1998 |
| 5715855 | Temperature-activated valve A temperature-actuated valve includes an elongated housing having anterior and posterior segments, the anterior segment being connected to an outdoor water supply. A valve within the anterior segment opens in response to freezing temperatures, defining a ... | 02/10/1998 |
| 5339865 | Apparatus for compensating for variations in pressure exerted by a fluid within a container against the container An apparatus for compensating for variations in pressure exerted by a fluid within a container against the container to maintain the pressure below a pressure limit within a predetermined pressure range. The pressure range has an upper range limit above t... | 08/23/1994 |
| 5225075 | Swimming pool skimmer winterizing plug A winterizing plug for water lines of a swimming pool is disclosed. The winterizing plug cooperates with a port in the skimmer to displace water in the line and reduce the possibility of damage thereto. Water is displaced by means of air pressure maintain... | 07/06/1993 |
| 5113891 | Water freeze guard valve A water freeze guard valve having a water-filled actuator chamber and a linkage assembly for transmitting linear expansion movement, caused by ice formation within the actuator chamber, to force a poppet disc against the seat of the valve supply port and ... | 05/19/1992 |
| 5058627 | Freeze protection system for water pipes A water pipe anti-rupture system for preventing freeze damage provides for an injection molded string of hollow cups spaced apart by a common connecting rod. Periodically spaced cross stabilizing leg members are disposed in a plane perpendicular to the co... | 10/22/1991 |
| 4928754 | Heat exchanging apparatus A heat exchanging or circulation apparatus comprising a system of conduits connected to an inlet and an outlet for circulating water or other practically incompressible liquid through the system, heat being transferred through the conduit walls, circulati... | 05/29/1990 |
| 4784173 | Water freeze prevention valve A freeze prevention device for water systems includes a relief valve and an actuator having an elongated chamber which contains water and segments that sequentially sense the incremental expansion caused by ice formation therebetween. The segments are axi... | 11/15/1988 |
| 4750510 | Temperature responsive pressure relief apparatus and method A fluid pressure relief apparatus of the rupturable type which ruptures at different pressures depending upon the temperature of the fluid in contact therewith. A rupture member is provided supported by a support member which is maintained in place by a m... | 06/14/1988 |
| 4638828 | Water temperature actuated drip valve An automatically operated valve to prevent freezing of water lines. The valve is elongated, having threads on one end to be received in a conventional plumbing tee or the like, or in a threaded opening in a faucet. The opposite end discharges water during... | 01/27/1987 |
| 4588000 | Method and apparatus for metering and dispensing volatile liquids A metering/dispensing head (10) and system for dispensing small doses of liquid nitrogen into individual filled cans (16) proceeding from a filling station to a closing station. The head includes a nozzle member (32) to which a source of liquid nitrogen u... | 05/13/1986 |
