Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Application No. | Application Title | Issue Date |
| 20100310333 | GEARWHEEL CUTTING MACHINE HAVING VIBRATION DAMPING Gearwheel cutting machine, which is designed for machining the tooth flanks of gearwheels (1), comprises chucking means (20) for chucking a workpiece (1) to be machined and a gear cutting tool. The gearwheel cutting machine is distinguished in that ... | 12/09/2010 |
| 20100247260 | MACHINE TOOL FOR THE PRODUCTION OF TEETH ON WORKPIECES AND METHOD FOR THE PRODUCTION OF TEETH ON A WORKPIECE BY MEANS OF A MACHINE TOOL A machine tool for the production of teeth on workpieces is provided, comprising a workpiece holding device, a cold rolling device for the production of rough teeth on at least one workpiece held by the workpiece holding device by way of cold rolling and a cutting machi... | 09/30/2010 |
| 20080213055 | Universal Machine for the Soft Machining of Bevel Gears and Corresponding Method The invention relates to a device for use in production of bevel gears. The device comprises a turning machine (22), with a working spindle (22.1) and a counter-holder (23), arranged co-axially to a rotational axis (B1) of the working spindle... | 09/04/2008 |
| 20070271766 | PROCESS FOR LAPPING RING AND PINION GEARS A method for processing a gear set through a lapping operation that includes: providing a lapping machine tool having a first spindle and a second spindle, the second spindle being rotatable about an axis that is generally perpendicular to a rotational axis of the first... | 11/29/2007 |
