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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 7303194 | Seal retainer with pressure energized metal seal members for undersea hydraulic coupling An improved seal retainer for an undersea hydraulic coupling member, which utilizes pressure energized metal seals to maintain fluid integrity. One or more metal seals designed to have a press or interference fit are utilized in such a way that pressurized fluid try... | 12/04/2007 |
| 7150641 | Electrical connection socket structure with a movable insulation block An electrical connection socket structure, into which a plug of a signal wire is inserted for electrical connection, includes a plastic base formed with a hole, a plurality of terminals disposed in the plastic base, and an insulation block disposed in the plastic ba... | 12/19/2006 |
| 7140520 | Spigot for a beverage dispenser A spigot for a beverage container includes a body having a passage with first and second ends formed therethrough. An annular shoulder extends into the passage proximate the first end thereof and an annular valve seat is formed proximate the second end. An elastomer... | 11/28/2006 |
| 7128591 | Electrical connection socket structure with a movable insulation block An electrical connection socket structure, into which a plug is inserted, includes a plastic base having a hole, terminals disposed in the plastic base, and an insulation block. Each terminal has a pin located below the plastic base and an elastic arm formed with a ... | 10/31/2006 |
| 6994321 | Reciprocating ball valve The device described herein is a valve suitable for the control or shut-off of fluid flow in a piping system. It comprises a valve housing having inlet and outlet ports and a cylindrical bore whose axis is slanted at about 45 degrees in relation to the axis connecti... | 02/07/2006 |
| 6651693 | Check valve The check valve (12, 14) of the present invention is a ball-type valve that incorporates multiple annular valve seats (34, 38) of progressively smaller diameters for the specific purpose of providing a series of effective annular valve seats as the larger... | 11/25/2003 |
| 6220299 | Two-way valve Valves are disclosed including a housing having at least one fluid inlet and at least one fluid outlet, a valve seat for at least one of the fluid inlets and fluid outlets, a diaphragm movable between a first position engaged with the valve seat and a sec... | 04/24/2001 |
| 4376448 | Let-down valve The valve passes incoming pressurized fluid through a pair of orifices arranged in opposite side walls of a hollow tubular plug to form two fluid jets which impinge upon one another in the plug interior prior to exiting. The orifices are elongated and sel... | 03/15/1983 |
| 4292991 | Erosion resistant valve A valve for use under severe throttling conditions, includes a housing with fluid inlet and outlet passages communicating with a chamber inside the housing. An abrasive resistant throttling tube in fluid communication with the inlet passage projects into ... | 10/06/1981 |
| 4013090 | Gate valve rotating disc A gate valve having a flow passage therethrough is provided with a valve stem movable disc having an opening permitting fluid flow through the passageway when in register therewith and interrupting fluid flow when the disc is in a valve closed position. T... | 03/22/1977 |
