Celebrity Inventors
Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 5531461 | Chuck with torque limiting mechanism and inclined plane for final tightening A chuck for releasably holding a tool such as a drill bit has a torque limiting coupling in the mechanism which is rotated manually to close the jaws of the chuck on the tool. When the chuck has been tightened on the tool by a certain amount, the torque l... | 07/02/1996 |
| 5495425 | Method of manufacturing a collet with optimized gripping action The present invention relates to a method and process for manufacturing an improved machine tool collet. The invention further relates to an improved machine tool collet having design parameters optimized to maximize the gripping strength of the collet. T... | 02/27/1996 |
| 5465983 | Removable nosepieces for chucks and similar tool holders A removable nosepiece for a chuck includes a plastic and/or metal ring which is removably mounted on a distal portion of either the main body or a sleeve of the chuck so that the ring is concentric with the central longitudinal axis of the chuck. The remo... | 11/14/1995 |
| 5452906 | Non-impact keyless chuck A non-impact keyless chuck suitable for use with manual or powered drivers is disclosed. The chuck comprises a body which carries a rotatable split nut having a relatively fine thread and a plurality of slidable jaws, which may be identical, driven by the... | 09/26/1995 |
| 5431420 | Non-impact keyless chuck A non-impact keyless chuck suitable for use with manual or powered drivers is disclosed. The chuck comprises a body which carries a rotatable split nut having a relatively fine thread and a plurality of slidable jaws, which may be identical, driven by the... | 07/11/1995 |
| 5411275 | Chuck with torque limiting mechanism and inclined plane for final tightening A chuck for releasably holding a tool such as a drill bit has a torque limiting coupling in the mechanism which is rotated manually to close the jaws of the chuck on the tool. When the chuck has been tightened on the tool by a certain amount, the torque l... | 05/02/1995 |
| 5409243 | Removable nosepieces for chucks and similar tool holders A removable nosepiece for a chuck or other similar tool holder has an outer ring of relatively hard and inflexible material such as plastic and/or metal and an inner ring of relatively soft and flexible material such as rubber. The outer ring releasably h... | 04/25/1995 |
| 5390940 | Keyless chuck with integral threaded ring A chuck for use with a manual or power driver having a rotatable drive shaft. The chuck includes a generally cylindrical body member with a nose section and a tail section. The tail section has an axial bore formed therein to mate with the drive shaft of ... | 02/21/1995 |
| 5382030 | Collet and method for optimizing gripping action thereof The present invention relates to a method and process for manufacturing an improved machine tool collet. The invention further relates to an improved machine tool collet having design parameters optimized to maximize the gripping strength of the collet. T... | 01/17/1995 |
| 5348318 | Chuck Chuck for use with manual or powered driver having rotatable shaft, the chuck including a bearing thrust ring fixed on the body and a self-contained anti-friction bearing assembly disposed adjacent the thrust ring. The chuck further includes a nut rotatab... | 09/20/1994 |
| 5348317 | Chuck Chuck for use with a manual or powered driver including a nut rotatably mounted on the chuck body and in engagement with the threads of the chuck jaws. The chuck includes a self-contained anti-friction bearing assembly disposed between the nut and a thrus... | 09/20/1994 |
| 5330204 | Non-impact keyless chuck A non-impact keyless chuck suitable for use with manual or powered drivers is disclosed. The chuck comprises a body which carries a rotatable split nut having a relatively fine thread and a plurality of slidable jaws, which may be identical, driven by the... | 07/19/1994 |
| 5324050 | Sealing collet A sealing collet is provided having a plurality of independent gripping jaws longitudinally disposed about a common centerline axis. The gripping jaws have exposed inner and outer faces. A resilient material is disposed between the gripping jaws and holds... | 06/28/1994 |
| 5314198 | Collet chuck apparatus The center of a collet having a plurality of individual gripper members resiliently spaced apart in an annular array and operated on by a frustoconical surface can be adjusted by displacing some of the gripper members more than others of the gripper membe... | 05/24/1994 |
| 5299814 | Tool chuck having dust seal A tool chuck is provided for rotary power tools that includes a dust seal for reducing the quantity of dust and cuttings entering the chuck mechanism. The tool chuck features an endcap affixed to the chuck body and a circular brush may be either permanent... | 04/05/1994 |
| 5253879 | Non-impact keyless chuck A non-impact keyless chuck suitable for use with manual or powered drivers is disclosed. The chuck comprises a body which carries a rotatable split nut having a relatively fine thread and a plurality of slidable jaws, which may be identical, driven by the... | 10/19/1993 |
| 5215317 | Keyless chuck A chuck has a spring connection between the nut which rotates to advance or retract the jaws and the control ring or sleeve which the user rotates to operate the chuck. The spring normally transmits tightening or loosening rotation from the sleeve to the ... | 06/01/1993 |
| 5193825 | Apparatus for adjusting the center of a collet The center of a collet having a plurality of individual gripper members resiliently spaced apart in an annular array and operated on by a frustoconical surface can be adjusted by displacing some of the gripper members more than others of the gripper membe... | 03/16/1993 |
| 5193824 | Chuck having a drive bit socket A chuck is provided that has a threaded axial bore so that the chuck may be mounted onto a threaded spindle. The chuck body has an integrally formed socket that accepts a drive bit so that the chuck may be screwed onto the spindle by inserting a drive bit... | 03/16/1993 |
| 5145194 | Impact tool chuck A tool chuck suitable for use with manual or powered impact drivers is described. The chuck comprises a body which carries a rotatable nut and a plurality of slidable jaws, driven by the rotatable nut. An anti-friction bearing is disposed between the rota... | 09/08/1992 |
| 5011167 | Chuck jaw The profiles of the threads on the jaws of a chuck, such as a three-jawed chuck, are modified so that at least one end of the jaw thread segments curve in away from the threads on the nut which operate the jaws. This prevents the end edges of the jaw thre... | 04/30/1991 |
| 4989887 | Methods and apparatus for adjusting the center of a collet The center of a collet having a plurality of individual gripper members resiliently spaced apart in an annular array and operated on by a frustoconical surface can be adjusted by displacing some of the gripper members more than others of said gripper memb... | 02/05/1991 |
