US4098151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Powered wrench
Assignee: Individual
•
Filing: 1977-08-17
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Granted: 1978-07-04
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Expires: 1997-08-17
Abstract
Abstract A wrench for rotating a non-circular part on a continuous shaft as tightening the brake on a locomotive. The wrench is made up of a gear box and socket guide containing a two-piece socket gear that can be placed around the part to be rotated. A socket drive gear connected through a power drive insert is provided, and the socket gear can be rotated by a wrench connected to the power drive insert, thereby transmitting power through the socket drive gear to the article being tightened.
Inventors
- 👤 Gary F. Bliss
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:16
CPC Classifications
B; B25; B25B; B25B17/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
134 words
A wrench comprising, a body, a guide supported on the body, a socket rotatably supported on the guide, a drive gear supported in the said body, drive means supported adjacent said drive gear, a socket drive gear rotatably supported in said body adjacent said guide, a drive chain engaging said drive gear and said socket drive gear, a socket gear rigidly attached to said socket drive gear, a socket chain fixed to the outer periphery of said socket, said socket having a non-circular opening therein, said socket comprising a first part and a second part, teeth on said socket gear engage said socket chain around said socket whereby when the driving means rotates the drive gear, the drive chain moves revolving the socket drive gear which turns the socket gear which rotates the socket.
Claim 2
Dependent Claim
134 words
A wrench comprising, a body, a guide supported on the body, a socket rotatably supported on the guide, a drive gear supported in the said body, drive means supported adjacent said drive gear, a socket drive gear rotatably supported in said body adjacent said guide, a drive chain engaging said drive gear and said socket drive gear, a socket gear rigidly attached to said socket drive gear, a socket chain fixed to the outer periphery of said socket, said socket having a non-circular opening therein, said socket comprising a first part and a second part, teeth on said socket gear engage said socket chain around said socket whereby when the driving means rotates the drive gear, the drive chain moves revolving the socket drive gear which turns the socket gear which rotates the socket.
Claim 3
Dependent Claim
17 words
The combination recited in claim 1 wherein said guide has a hinged part and a fixed part.
Claim 4
Dependent Claim
42 words
The combination recited in claim 1 wherein said guide has a first part fixed to said body and a second part hinged to said fixed part and means to latch said second part in position providing a space rotatably receiving said socket.
Claim 5
Dependent Claim
35 words
The combination recited in claim 1 wherein a guide release member is supported on said body and connected to latch means on said body for holding said second part of said socket guide in position.
Claim 6
Dependent Claim
24 words
The combination recited in claim 2 wherein said second part of said guide is connected to said first part by means of a link.
Claim 7
Dependent Claim
34 words
The combination recited in claim 1 wherein said socket has a generally cylindrical shoulder extending outwardly from each opposite side of said gear, said shoulder being rotatably received in bearing surfaces on said guide.
Claim 8
Dependent Claim
25 words
The combination recited in claim 1 wherein inserts are placed in said non-circular opening of said socket to adjust the size of said non-circular opening.
Claim 9
Dependent Claim
28 words
The combination recited in claim 1 wherein said first part of said socket has a locating pin and said second part has an opening for said locating pin.
Claim 10
Dependent Claim
19 words
The combination recited in claim 1 wherein said drive gear has a means thereon for receiving an impact wrench.
Claim 11
Dependent Claim
20 words
The combination recited in claim 1 wherein said body has a handle fixed to the end thereof opposite said guide.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-03 | 1982-01-02 | 1982-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-03 | 1986-01-02 | 1986-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-03 | 1990-01-02 | 1990-07-04 | $7700.00 | Window Closed / Lapsed |