US Patent: 2,578,687
|
| Split Ratchet Socket Wrench
|
|
Patentee:
|
|
| Herbert L. Fish (exact or similar names) - Los Angeles, CA |
|
|
Patent Dates:
|
| Applied: |
Mar. 10, 1947 |
| Granted: |
Dec. 18, 1951 |
|
Patent Pictures:
[
1 | 2
]
|
|
Herbert L. Fish Pat. Dec. 18, 1951 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Stan Schulz
|
|
Description: |
| The patent is a narrowing and elaboration of Fish's parallel patent (no. 2,578,686). The "crow foot" ratchet heads and socket inserts citing this patent closely match the drawings. The patent includes the shape of the connection between the socket and ratchet head, and the replaceable ratchet pawls. These split ratchets and sockets were intended for working on hydraulic line couplings in the cramped enclosed spaces inside aircraft, and similar applications. The handle appears in a later patent (no. 2,680,985).
The patent cites several patents as references: RE19,341, 207,117, 493,273, 763,105, 784,876, 861,524, 894,641, 921,290, 972,627, 1,060,185, 1,289,558, 1,380,543, 1,410,032, 1,4352,88, 1,822,428, 2,300,479, & 2,376,575. |
|
){kind=link}
')){kind=link}