US Patent: 2,671,367
|
| Angularly Adjustable Handle for Socket Wrenches
|
|
Patentee:
|
|
| John Modin (exact or similar names) - Vancouver, BC Canada |
| Manufacturer: |
|
PROTO - Los Angeles, CA |
|
|
Patent Dates:
|
| Applied: |
Mar. 05, 1953 |
| Granted: |
Mar. 09, 1954 |
|
Patent Pictures:
[
1 | 2 | 3
]
|
|
U.S. patent 2,671,367 - edited drawing |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The handle is a "breaker bar" for a socket wrench. A spring-tensioned splined section allows for "free rotation" when the spring is compressed.
A reported 1/2 inch drive example is marked "5457 PROTO MFD. U.S.A.” // “U.S. PAT. No. 2671367 PAT. Canada 1954”. It appears as "ROTAHEAD" hinge handle in a 1956 PROTO catalog.
Patent nos. 122,916, 1,473,436, 1,474,798 and 1,521,331 are cited as references. |
|
){kind=link}
){kind=link}
){kind=link}