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.
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| Number | Title | Issue Date |
| 5123679 | Connection together of pipes by breakable welded joint A fluid conduit composed of: two pipe sections each having a longitudinal axis and a connecting end, each pipe section including a cylindrical main portion, an annular flange located at the connecting end and extending radially outwardly from the main por... | 06/23/1992 |
| 4786087 | Quick disconnect coupling A quick disconnect coupling that is used to interconnect a dispensing hose from a reactor tank to any one of a plurality of charge tanks to facilitate the transfer of ingredients from the charge tanks to the reactor tank. Each charge tank has an outlet pi... | 11/22/1988 |
| 4722560 | Quick release tube coupling The disclosure relates to a quick release tube couplings in which a collet with resilient arms is arranged to co-operate with a tapering cam surface in a member surrounding the collet to force the arms to grip a tube within the collet. The member is forme... | 02/02/1988 |
| 4634150 | Conduit arrangement for interconnecting stationary conduit extensions The invention is directed to a connecting arrangement for interconnecting o widely spaced stationary end flanges corresponding to two conduits with an interconnecting conduit section. The two conduits lead to processing components in a large-area cell for... | 01/06/1987 |
| 4134606 | Weld joint A welded joint between two telescoped and threaded together inner and outer parts of an assembly wherein the joint may be cut apart to permit unthreading of the one part from the other and for their subsequent reuse after repair or cleaning of the assembl... | 01/16/1979 |
| 4132578 | Plastic pipe welding apparatus and method A method and apparatus for welding PVC pipe which includes a means to clamp and apply welding heat so that plastic pipes may be welded while under external pressure adapted to offset internal pressures. The method includes the steps of placing a clamp abo... | 01/02/1979 |
