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| Number | Title | Issue Date |
| 6918402 | Flow control apparatus The present invention provides a flow control apparatus and method. In accordance with the present invention, the flow control apparatus comprises a thermostat that automatically actuates valve to enable water to flow through the valve when the temperature of the ai... | 07/19/2005 |
| 6883534 | 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 ... | 04/26/2005 |
| 6857442 | 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 movable ball is located w... | 02/22/2005 |
| 6830063 | Freezeless protection device for wall hydrants/faucets A freezeless wall hydrant is provided that has an elongated inlet pipe comprised of a hollow tube. The tube is connected to a valve and fitting assembly on its inner end for connection to a source of water under pressure. On the outer end, the tube is connected to a... | 12/14/2004 |
| 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 |
| 6363960 | Frost protection device This invention relates to a frost protection device for preventing sections of water pipes which are in danger of being affected by frost from freezing up. Said frost protection device consists essentially of a pressure control valve with a piston-type va... | 04/02/2002 |
| 5797416 | Faucet and water pipe freeze-protection device A device which protects water faucets and water pipes to which they are attached from freezing or breaking due to freezing of water contained therein. The device comprises a closed-ended nipple which is axially and/or radially expandable to accommodate fr... | 08/25/1998 |
| 5785073 | Pipe burst protection pressure relief apparatus for sliding plate plumbing fixtures According to the present invention, water regulation assemblies disposed in the water supply path of conventional fixtures are modified to include a pressure relief assembly which permits release of water under elevated pressures. A normal shut-off seal i... | 07/28/1998 |
| 5785072 | Compressed stopper channel bypass pipe burst pressure relief apparatus for plumbing fixtures According to the present invention, water regulation assemblies disposed in the water supply path of conventional fixtures are modified to include a pressure relief assembly which permits release of water under elevated pressures. A shut-off seal of a fix... | 07/28/1998 |
| 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 |
| 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 |
| 5055185 | Anti-freeze separator assembly This invention relates to an anti-freeze separator assembly connected to a piece of equipment in outdoor freezing conditions in order to take a fluid, such as water, and treat same for subsequent disposal without freezing. The anti-freeze separator assemb... | 10/08/1991 |
| 4967780 | Anti-freezing device An anti-freezing device for use in water supply conduits, which includes a driving chamber for imparting a drive to a main valve which is moved by the volumetric expansion due to the freezing of water therein so that the main valve is separated from a val... | 11/06/1990 |
| 4968456 | Electrical air freshener for automobiles An electrical air freshener designed to be plugged into an automobile cigarette lighter receptacle is disclosed. The air freshener includes a housing or body; an electrical motor within the housing connectable to a source of electrical current; a switch o... | 11/06/1990 |
| 4815491 | Freeze protection device For freeze protection of a water line, a T fitting in the line is provided with a removable threaded bushing having a plug with radially projecting balls which engage J-shaped slots in the bushing to provide a bayonet joint. The plug is released when free... | 03/28/1989 |
| 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 |
| 4437481 | Self-actuating drip valve A self-actuating drip valve for attachment to a standard faucet for the prevention of freezing of exposed water pipes. An elongated housing includes means for securing one end of the housing about the open end of the faucet. A valve seat is provided withi... | 03/20/1984 |
