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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 |
| 7097432 | Sliding vane turbocharger with graduated vanes A turbocharger having a variable geometry turbine inlet incorporating a cylindrical piston movable to vary the area of the inlet nozzle into the turbine. Vanes mounted to the piston for flow control in the nozzle are received through a slotted heat shield which prov... | 08/29/2006 |
| 6914360 | Turbomachine A turbomachine has at least one rotor disk that is attached at an overhung end of a mounted first shaft, and an electric rotor of an electric machine that is connected with the end of the first shaft that lies opposite the rotor disk, by way of a coupling. The elect... | 07/05/2005 |
| 4340340 | Vacuum system What is disclosed is an improvement in a system for producing a vacuum in which both liquid and gas streams are involved. Specifically, in one aspect the improvement is in a vacuum system for extruding plastic pipe having conventional extrusion apparatus,... | 07/20/1982 |
