US3656216A
Expired / Lapsed
US
⏱️ 0.0 years remaining
File handle
Assignee: Individual
•
Filing: 1970-07-10
•
Granted: 1972-04-18
•
Expires: 1990-07-10
Abstract
Abstract A longitudinal shaft having projections on each end thereof extending downward and inward toward each other for gripping the side wall of the end portions of a hollow file, a bolt inserted therethrough at one end thereof, a handle attached thereto at one end thereof, one of the projections and the handle having a longitudinal slot in which the bolt is inserted for adjustment of the handle and adjustment of the projection to grip the end of the file, and vertical extensions extending from both surfaces of the shaft to prevent unwanted side slippage and twisting of the adjustable handle and projection.
Inventors
- 👤 James A Coon
- 👤 Elwin Theobald
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 03:01
CPC Classifications
B; B23; B23D; B23D71/00; Y; Y10; Y10T; Y10T407/00; Y10T407/18; Y10T407/1825
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
131 words
A hollow file holder, comprising a shaft, a hooked projection secured to the bottom of said shaft at one end thereof, a second hooked projection slidably attached to the bottom of said shaft at the other end thereof, a handle slidably attached to the top of said shaft at said other end thereof, means connected to said shaft and said second projection and said handle for alternatively securing said second projection and said handle in a fixed position and allowing longitudinal movement of said second projection and said handle and rotational movement of said handle, said projections adapted to receive and hook on to the end portions of a side of a hollow file which is to be held, said means allowing said projections to firmly grip various length hollow files.
Claim 2
Dependent Claim
131 words
A hollow file holder, comprising a shaft, a hooked projection secured to the bottom of said shaft at one end thereof, a second hooked projection slidably attached to the bottom of said shaft at the other end thereof, a handle slidably attached to the top of said shaft at said other end thereof, means connected to said shaft and said second projection and said handle for alternatively securing said second projection and said handle in a fixed position and allowing longitudinal movement of said second projection and said handle and rotational movement of said handle, said projections adapted to receive and hook on to the end portions of a side of a hollow file which is to be held, said means allowing said projections to firmly grip various length hollow files.
Claim 3
Dependent Claim
36 words
The hollow file holder of claim 1, wherein said projections are U-shaped, the legs of said projections being parallel with the bottom surface of said shaft, and the legs of said projections extending toward each other.
Claim 4
Dependent Claim
66 words
The hollow file holder of claim 2, including a leg extending downward below said shaft and attached at the end of the lower leg of said second projection, and wherein said second projection and said downward extending leg is comprised of a spring-like material allowing the hollow file to be replaced by another hollow file in a minimum of time without the use of said means.
Claim 5
Dependent Claim
104 words
The hollow file holder of claim 1, wherein said projections are shaped in the form of a crow bar with the straight portions thereof being secured to said shaft and the curved ends thereof extending downward and toward each other, the curved ends thereof hooking onto and gripping the file teeth jutting from the surface of the hollow file and entering the clearance holes formed by the jutting file teeth of the hollow file in the alternative for firmly holding the hollow file to said shaft with said shaft respectively being positioned outside the hollow file and inside the hollow file in the alternative.
Claim 6
Dependent Claim
124 words
The hollow file holder of claim 1, wherein said second projection has a longitudinal slot in the portion thereof attached to the bottom of said shaft and wherein said handle has a longitudinal slot at one end thereof, the slot being open at one end thereof; and including a bolt inserted through said slots of said second projection and said handle and inserted through said shaft, a wing nut threadedly engaged with said bolt at the top surface of said handle, a pair of extensions extending vertically upward from said shaft adjacent the sides of said handle, and a pair of extensions extending downward from said shaft adjacent the sides of the portion of said second projection attached to the bottom of said shaft.
Claim 7
Dependent Claim
42 words
The hollow file holder of claim 5, wherein the other end of said handle is shaped to be inserted in the tool jaw of a file machine and a hand tool in the alternative and to be held manually in the alternative.
References Cited (Backward Citations)
US1714514A
Cited
US2193400A
Cited
US2547484A
Cited
US2645002A
Cited
US2839817A
Cited
US3531841A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |