US Patent: 3,467,231
|
| Pawl Reversing Mechanism For Ratchet Wrenches
|
|
Patentee:
|
|
| Henry J. Haznar (exact or similar names) - Ware, MA |
|
|
Patent Dates:
|
| Applied: |
Feb. 12, 1968 |
| Granted: |
Sep. 16, 1969 |
|
Patent Pictures:
|
|
Henry J. Haznar patent September 16, 1969 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| Pat. number appears on CRAFTSMAN 43178 1/4" drive ratchet, along with pat. no. 3,532,013, and note of a 1971 Canadian patent.
The patent focuses on the interrelationship between the internal pawls, the inner edge of the pawls with a lobe between two recesses, and the means of switching the actuating spring and ball from one pair of recesses to the other.
Pat. nos. 2,772,763 and 3,372,612 cited as references. |
|
