Did You Know...
...that one person who claimed to be the inventor of the television is Russian emigre Vladimir Zworykin? In 1929 David Sarnoff, founder of RCA, asked Zworykin what it would take to develop TV for commercial use. He said: a year and a half and $100,000. In reality, it took 20 years and $50 million! Before his death in 1982 at the age of 92, Zworykin said of his invention: "The technique is wonderful. It is beyond my expectations. But the programs! I would never let my children even come close to this thing."
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| Number | Title | Issue Date |
| 7360554 | Integrated gas meter bar device and locking shut-off valve A control valve assembly and for a gas delivery system is disclosed comprising a valve housing and piping combination adapted to mate with a gas meter outlet, the valve including a main inlet and an auxiliary inlet for bypassing the main inlet, and a poppet disposed... | 04/22/2008 |
| 7159609 | Mounting unit of wall faucet An improved mounting unit of wall faucet mainly is to design two locking ends extruded on the shutter near the granite counter to lock the locking units and position the water faucet on the granite counter; in addition, the locking ends are designed on the non-retur... | 01/09/2007 |
| 7152621 | Integrated gas meters bar device and locking shut-off valve A control valve assembly and for a gas delivery system is disclosed comprising a valve housing and piping combination adapted to mate with a gas meter outlet, the valve including a main inlet and an auxiliary inlet for bypassing the main inlet, and a poppet disposed... | 12/26/2006 |
| 7134641 | Valve having axial and radial passages A valve includes a valve body (100) disposable within a chamber (103) of a housing (101) and capable of being fluidly sealed with respect to the housing (101) when the valve is closed. At least one radial passage (117) is disposed ... | 11/14/2006 |
| 6042015 | Fail-safe proportional mixing valve A fail-safe proportional mixing valve is provided that tempers a hot fluid supply by proportional flow from a hot fluid inlet and a cold fluid inlet. The valve includes a fail-safe mechanism disposed within the body of the valve to isolate flow from the h... | 03/28/2000 |
| 5722451 | Device for bleeding or draining a duct A device for bleeding or draining a duct comprises a member for closing a passage that opens out into the duct, the member having a helical groove formed in its peripheral surface enabling it to be moved in the passage by screwing and unscrewing on a heli... | 03/03/1998 |
| 5299774 | Diaphragm controlled irrigation valve with captivated bleed screw A diaphragm controlled irrigation valve (20) is disclosed which includes a captivated relief member (60). The captivation is achieved by a stop (100) which radially extends from the member to abut the valve housing (23).... | 04/05/1994 |
| 4986502 | Safety drain plug A drain plug for threaded engagement within a threaded drain opening of a pressurized system to prevent complete removal of the plug before release of any residual pressure within the system. An axially extending groove is formed in the threaded portion o... | 01/22/1991 |
| 4969628 | Valve construction and method of making the same A valve construction and method of making the same are provided, the valve construction comprising a housing having an inlet and an outlet and a valve seat adapted to be interconnected to the inlet and the outlet, a movable valve member carried by the hou... | 11/13/1990 |
| 4911229 | Valve systems for purging earth coupled water source heat pumps A manifold and valve system is disclosed for purging air from a closed brine filled loop piping used in conjunction with a water source heat pump. The valves are T-shaped with a closure member or valving member in the top portion which connects with the p... | 03/27/1990 |
| 4718636 | Branch coupling on flexible hose Purge branch coupling for a main flexible hose, reinforced or not, sheathed or unsheathed, of the type having the shape of a tubular insert which is intended to co-operate with a closure piece of its proximal extremity and which is integral with the main ... | 01/12/1988 |
| 4703776 | Snow hydrant A method and device for valving liquid flow through a conduit which avoids high pressure flow characteristics such as valve chatter due to turbulence and turbulence-enduced corrosion by spoiling the flow of liquid so as to break up the liquid front into d... | 11/03/1987 |
| 4470577 | Corrosion resistant bleeder screw arrangement A bleeder arrangement for a hydraulic system of the type used in vehicle brakes. It includes a bleeder screw and bleeder passage construction which completely protects the bleeder screw threads from any exterior corrosive agents. The screw body is arrange... | 09/11/1984 |
