US Patent: 3,640,159
|
| Adjustable Jaw Wrench
|
|
Patentees:
|
| Kenneth F. Halls (exact or similar names) - Dallas, TX |
| Alfred H. Brickley (exact or similar names) - Garland, TX |
|
|
Patent Dates:
|
| Applied: |
Aug. 26, 1970 |
| Granted: |
Feb. 08, 1972 |
|
Patent Pictures:
|
|
Kenneth F. Halls, et. al. patent February 8, 1972 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| A slide drives rotation of a shaft with spiral grove; gearing transfers the motion to a worm which moves the adjustable jaw. It is a refinement of Halls' design which received patent no. 3,555,939.
The tool corresponding to this patent notes both patents.
The specifications cite prior patent numbers 594,219, 2,753,748, 3,125,911 and 3,541,899 as references. |
|
