US3592247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Handle for screwdrivers or the like
Assignee: Wera Werk Hermann Werner GmbH and Co KG
•
Filing: 1968-07-31
•
Granted: 1971-07-13
•
Expires: 1988-07-31
Abstract
Abstract A tool handle, particularly a screwdriver handle having a ring zone of largest diameter approximately in a center zone of the handle, the handle being reduced on both sides of the ring zone constituting reduced sections including grooves angularly symmetrically arranged about the longitudinal axis of the handle, the grooves running concavely in the longitudinal direction of the handle.
Inventors
- 👤 Johannes J Solf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:12
CPC Classifications
B; B25; B25G; B25G1/00; B25G1/10; B25G1/105
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
67 words
A tool handle, particularly a screwdriver handle, comprising a handle including a ring zone of largest diameter approximately in a center zone of said handle, said handle being reduced on both sides of said ring zone constituting reduced sections, said reduced sections include grooves lying in angle-symmetrical arrangement about the longitudinal axis of said handle, and said grooves run concavely in the longitudinal direction of said handle.
Claim 2
Dependent Claim
67 words
A tool handle, particularly a screwdriver handle, comprising a handle including a ring zone of largest diameter approximately in a center zone of said handle, said handle being reduced on both sides of said ring zone constituting reduced sections, said reduced sections include grooves lying in angle-symmetrical arrangement about the longitudinal axis of said handle, and said grooves run concavely in the longitudinal direction of said handle.
Claim 3
Dependent Claim
22 words
The tool handle, as set forth in claim 1, wherein said grooves have a flat base in crosswise direction of said handle.
Claim 4
Dependent Claim
20 words
The tool handle, as set forth in claim 1, wherein said grooves are arranged in hexagonal form to each other.
Claim 5
Dependent Claim
45 words
The tool handle, as set forth in claim 1, wherein said handle is symmetrical about its longitudinal axis, and longitudinal ridges each of which is convex in cross section and concave in section in a plane through said longitudinal axis and which separate said grooves.
Claim 6
Dependent Claim
35 words
The tool handle, as set forth in claim 4, wherein said grooves each have in cross section a straight line base and concave sides extending from said base to said adjacent of said longitudinal ridges.
Claim 7
Dependent Claim
17 words
The tool handle, as set forth in claim 1, wherein the edges of said grooves are rounded.
Claim 8
Dependent Claim
51 words
The tool handle, as set forth in claim 1, wherein one end of said handle is adapted to receive a blade, said one end is formed with a collar, and between said collar and one of said reduced sections, an annular groove circumferentially extends having a narrowest diameter of said handle.
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) | 1974-07-12 | 1975-01-11 | 1975-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-12 | 1979-01-11 | 1979-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-12 | 1983-01-11 | 1983-07-13 | $7700.00 | Window Closed / Lapsed |