Famous Patents
The first commercial microwave oven was nearly 6 feet tall and weighed in at 750 pounds.
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7275469 | Planetary tubing cutter The planetary tubing cutter of the invention provides a gearing assembly having a pair of ring gears and a number of pinions with a blade affixed to each pinion. The ring gears are parallel to one another and are individually driven. The pinions are rotatably mounte... | 10/02/2007 |
| 6738034 | Picture image display device and method of driving the same Pixels in a picture image display device are driven in such a manner that while introducing light, a quenching period is initiated in which electro optical elements in the pixels are quenched after scanning a plurality of gate lines for displaying one picture image.... | 05/18/2004 |
| 6536314 | Device for continuous chipless separation of single identical rings from tubular workpieces A device for continuous chipless separation of single identical rings from a tubular workpiece, includes at least two cutting rollers which are placed about the tubular workpiece, and which operate in a same direction and are interconnected by a positive ... | 03/25/2003 |
| 5515756 | Roller cutter module with force equalizer A roller cutter module for use with a rotatable tool carrier head of a lathe machine tool includes multiple opposed cutter wheels for transversely cutting tubular workpieces, and wherein the wheels are rotatably mounted upon support arms that are pivotall... | 05/14/1996 |
| 5163347 | Device for cutting off the upper portion of a container constituting for instance a bottle neck A device for cutting off the top part of a container such as a bottle neck, comprising a plurality of pivoted arms operating like nippers gripping round the bottle necks and which carry each one at least at one of their ends a cutting form roller disposed... | 11/17/1992 |
| 5001949 | Apparatus and method for removing nuclear fuel assembly end pieces An apparatus is used for cutting guide tubes of a nuclear fuel assembly below an end-piece and removing the end-piece. The apparatus includes a mount which may be removably locked and centered on the end-piece. Cutting tools insertable in the guide tubes ... | 03/26/1991 |
| 4777723 | Abrasive pipe saw A portable pipe cutter primarily intended for concrete lined pipe includes a pair of annular tracks, which are mounted in fixed, parallel relationship to each other on a pipe, a pair of rectangular plates carrying rollers for movably mounting the plates o... | 10/18/1988 |
| 4369796 | Method and apparatus for forming an air dilution filter The air dilution filter of the cigarette is provided with an annular zone in the plug wrap paper which enables air to pass directly into the fibrous body of the filter material after passing through apertures in the tipping paper. The annular zone can be ... | 01/25/1983 |
| 4232574 | Apparatus and method for providing a cigarette filter with an aeration groove An apparatus and method is adapted to provide the filter of a cigarette with an annular perpheral groove to enable air to pass directly into the fibrous body of the filter material after passing through apertures in the tipping paper. Ordinary plug wrap p... | 11/11/1980 |
| 4138911 | Cutting tool A tool for cutting tubular or solid cylindrical workpieces such as rigid polyvinyl chloride or like rigid resin pipes, soft metal pipes, etc. transversely thereof comprises a main body having a bearing portion including a pair of freely rotatable members,... | 02/13/1979 |
