Adjustable spring clamp
US5381989A · kind A · utility
Inventor
Key dates
| Filing date | Feb 7, 1994 |
| Grant date | Jan 17, 1995 |
| Priority date | — |
| Expiry date | Feb 7, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T24/44462
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An adjustable clamp includes first and second gripping members pivotally coupled to each other for movement about a pivot pin, a helically coiled spring having a tubular portion disposed around the pivot pin having first and second end extensions extending from the tubular portion for biasing the gripping members toward a gripping position, and a bar having a threaded aperture, a threaded member, and a bracket, the bar being positioned between the helically coiled spring first end extension and the first gripping member, the bracket being coupled to the first gripping member and the threaded member rotatably engaging the bracket and the bar, the bar being movable relative to the bracket in response to rotation of the threaded member so as to reposition the first and second end extensions relative to each other thereby adjusting the force applied by the spring against the gripping members. An elastomeric member covers the end of the lever arms remote from the jaws, and an end portion of a support stand is received between one of the lever arms and the elastomeric member covering said lever arm, a support member extending downwardly from said end portion to a generally trapezoidal ba…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.