US4089356A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fiber-reinforced plastic tool handle
Assignee: Individual
•
Filing: 1976-02-06
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Granted: 1978-05-16
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Expires: 1996-02-06
Abstract
Abstract A fiber-reinforced plastic tool handle for engaging a handle receiving aperture of a tool, such as the eye of a hammer. A plurality of elongated fiber-reinforced plastic members or shafts are used to define the handle, allowing the handle to be readily secured in the aperture with a wedge.
Inventors
- 👤 Dennis J. O'Connor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:40
CPC Classifications
B; B25; B25G; B25G3/00; B25G3/02; B25G3/10; B25G3/12; B25G3/28
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
166 words
In a tool having a tool head with a handle receiving aperture, an improved handle for engaging said aperture comprising: a plurality of separate, elongated, solid plastic members having reinforcing fibers uniformly distributed therein, each of said members having an upper tool engaging end, a lower butt end and a central portion merging with said upper and lower ends, said upper tool receiving end of said members being disposed within said tool head aperture; locking means disposed on said upper tool receiving ends of said members for securing each of said members upper end to said tool head; said central portion of each member being in confronting non-fixed relationship to each other; grip means disposed on said lower butt end of each of said members for providing a grip and for securing said butt ends; spacer means frictionally positioned between said members below said tool head for reducing vibration during use; whereby a plurality of members may be readily secured within said aperture of said tool.
Claim 2
Dependent Claim
166 words
In a tool having a tool head with a handle receiving aperture, an improved handle for engaging said aperture comprising: a plurality of separate, elongated, solid plastic members having reinforcing fibers uniformly distributed therein, each of said members having an upper tool engaging end, a lower butt end and a central portion merging with said upper and lower ends, said upper tool receiving end of said members being disposed within said tool head aperture; locking means disposed on said upper tool receiving ends of said members for securing each of said members upper end to said tool head; said central portion of each member being in confronting non-fixed relationship to each other; grip means disposed on said lower butt end of each of said members for providing a grip and for securing said butt ends; spacer means frictionally positioned between said members below said tool head for reducing vibration during use; whereby a plurality of members may be readily secured within said aperture of said tool.
Claim 3
Dependent Claim
13 words
The improved handle defined by claim 1 wherein said tool is a hammer.
Claim 4
Dependent Claim
20 words
The improved handle defined by claim 1 wherein said locking means comprise a wedge, disposed between said plurality of members.
Claim 5
Dependent Claim
39 words
The improved handle defined by claim 3 wherein said wedge includes a locking wire disposed within said wedge and having terminal ends extending outwardly to the bottom of said tool head for securing said wedge to said tool head.
Claim 6
Dependent Claim
29 words
The improved handle defined by claim 3 wherein said wedge includes at least one serrated surface for engaging a corresponding serrated surface of at least one of said members.
Claim 7
Dependent Claim
15 words
The improved handle defined by claim 3 including epoxy for securing said wedge in position.
Claim 8
Dependent Claim
13 words
The improved handle defined by claim 1 wherein two elongated members are employed.
Claim 9
Dependent Claim
27 words
The improved handle defined by claim 7 wherein said locking means comprises a wedge disposed between said two member at said tool receiving end of said members.
Claim 10
Dependent Claim
29 words
The improved handle defined by claim 8 including at least one spacer member disposed between said elongated members, spaced apart from said tool, for lessening vibrations in said handle.
Claim 11
Dependent Claim
21 words
The improved handle defined by claim 9 wherein an over-blow shield is mounted on at least one of said elongated members.
Claim 12
Dependent Claim
15 words
The improved handle defined by claim 1 wherein said elongated members comprise pultruded fiberglass members.
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) | 1981-05-15 | 1981-11-14 | 1982-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-15 | 1985-11-14 | 1986-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-15 | 1989-11-14 | 1990-05-16 | $7700.00 | Window Closed / Lapsed |