US Patent: 3,505,914
|
| Chain Wrench
|
|
Patentee:
|
|
| Virgil M. Ockinga (exact or similar names) - Morrill, NE |
|
|
Patent Dates:
|
| Applied: |
Oct. 24, 1967 |
| Granted: |
Apr. 14, 1970 |
|
Patent Pictures:
[
1 | 2
]
|
|
Virgil M. Ockinga patent April 14, 1970 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The chain doubles back on itself, and hooks onto a slide with an inner compression spring. The spring holds the chain snugly around the object to be gripped. The head of the wrench bar is curved, with a groove to hold the chain from sliding laterally. The chain has gripping teeth cut on its inner surface.
Some larger size examples were made with aluminum handles. |
|
){kind=link}
){kind=link}