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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 |
| 7131162 | Floor and carpet push brush In a wheel supported floor and carpet push brush of the type having an array of aggressive bristles and another array of bristles which are of lesser diameter than the aggressive bristles carried on the dowel so that the brush can be turned over to bring a selected ... | 11/07/2006 |
| 6017488 | Method for nitriding a titanium-based carbonitride alloy An uncoated titanium-based carbonitride cutting tool insert with superior plastic deformation resistance and wear resistance is provided. This is accomplished by heat treating the material in nitrogen atmosphere under conditions to obtain a nitrogen rich ... | 01/25/2000 |
| 5319819 | Desk top cleaner A desk top cleaner for cleaning dust from the top of a table includes a crankshaft rotatably supported in a frame. A broom is formed with an elongated slot to engage with the crankshaft and has its upper end portion fitted in a supporting portion formed i... | 06/14/1994 |
| 5285549 | Desk top cleaner A desk top cleaner for cleaning dust from the top of a table includes a crankshaft rotatably supported in a frame. A broom is formed with an elongated slot to engage with the crankshaft and has its upper end portion fitted in a supporting portion formed i... | 02/15/1994 |
| 4929345 | Carpet sweeper A carpet sweeper for removing metallic staples, paper clips and the like from carpet wherein a semi-circular wire mesh fabric is secured to the forward end of a housing or base member and a magnet is secured to the bottom of the base member and extends al... | 05/29/1990 |
| 4765012 | Manually operated cleaner A manually operated cleaner is provided with a body in the form of a box-shaped container having a removable lid and a bottom wall. Two parallel openings are provided through the bottom wall of the container. A roll brush is mounted to project out of one ... | 08/23/1988 |
| 4107808 | Device for preparing the cleaning of carpet floors An apparatus for loosening-up the walked-down nap of a carpet has a carrier that rides on rollers on the carpet and which is provided with a pair of brushes spaced apart in the displacement direction. Each brush has an elastic bed for a multiplicity of wi... | 08/22/1978 |
