US Patent: 1,872,780
|
| Wrench
|
|
Patentee:
|
|
| Joe S. McKibbon (exact or similar names) - Columbia, TN |
|
|
Patent Dates:
|
| Applied: |
Oct. 01, 1930 |
| Granted: |
Aug. 23, 1932 |
|
Patent Pictures:
|
|
Joe S. McKibbon patent August 23, 1932 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The fourth McKibbon patent -- (the previous ones are 1,423,499, 1,709,589, and 1,730,671 )-- has a modified adjustment screw, and a modified form of the base of the movable jaw. This patent shows a single jaw structure designed for gripping pipe. The "KIBBON KATCH-KWIK" pipe wrench incorporates aspects of this patent as well as the prior ones. The shifting action of the movable jaw tightens the grip. |
|
