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Lawrence Welk, the bandleader who entertained millions of Americans over a generation of broadcasting his TV show, once received a patent: for a music-themed design of an ashtray.
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| Number | Title | Issue Date |
| 7207604 | Snap-fit connection for pool filtration systems A snap-fit connection assembly for use in a pool filtration system. The connection assembly includes a first connection receptacle, a second connection receptacle for insertion into the first connection receptacle, one or mores fingers extending circumferentially fr... | 04/24/2007 |
| 6318767 | Disengaging means for hose couplings An end member is provided for attachment of both ends of a unit of quarter turn quick connect fire hose or an adapter for a quarter turn quick connect fire hose, the end member having a generally tubular shape defining an axial opening, an uninterrupted s... | 11/20/2001 |
| 6007108 | Adapter for a nozzle manifold of a hot runner system An adapter for use with a nozzle manifold of a hot runner injection molding system for fluidly connecting at least two runner sections and thereby distribute and conduct melt to cavities of an injection mold, includes a plug having at least one end face f... | 12/28/1999 |
| 5890746 | Cooled and wetted redundant seal tube fitting A tube coupling assembly has independent primary and secondary sealing elements. The coupling assembly includes first and second coupling members which define a fluid passage therethrough. The coupling members are arranged relative to one another so as to... | 04/06/1999 |
| 5366262 | Quick connect fluid fitting A quick connect fitting for connecting a plastic or metallic tube (42) in a fluid circuit includes a fitting body (20) having an interior cavity (22) opening to the exterior of the body (20) via a generally circular port (36). A peripheral step (48) is lo... | 11/22/1994 |
| 4667927 | Liquid flow metering device A device for metering the flow of a liquid medium passing therethrough comprises a plastic stem member having a cylindrical metering drum element projecting into and rotatively engaged in liquid tight relation with the cylindrical wall of a bore chamber i... | 05/26/1987 |
| 4194768 | Liquid-tight connector A resuable liquid-tight connector for flexible liquid-tight electrical conduit comprises a body member and a compression member which cooperate to simultaneously grip the conduit radially by means of an eccentric action and compress the conduit axially in... | 03/25/1980 |
| 4103712 | Positive isolation disconnect A disconnect composed basically of two halves each consisting of a poppet valve operable to isolate fluid with essentially zero fluid loss. The two halves are coupled together by a quickly releasable coupling which may be either a coupling ring tightened ... | 08/01/1978 |
| 4036512 | Pipe joints This invention relates to a pipe joint for the butt jointing of pipes in the form of a sleeve to receive the respective pipe ends and provide a resilient seal between the sleeve and the pipe surfaces, said seal having peripheral lips adapted to effect an ... | 07/19/1977 |
