US3716433A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of equipping a tool handle or hand grip with a tough adherent protective layer with enhanced gripping properties
Assignee: Individual
•
Filing: 1970-09-18
•
Granted: 1973-02-13
•
Expires: 1990-09-18
Abstract
Abstract A method of providing a tool handle or the like hand grip with a tough protective strong-gripping layer by shrinking and bonding a sleeve of heat-reactive thermoplastic material thereto.
Inventors
- 👤 W Plummer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:24
CPC Classifications
B; B25; B25G; B25G1/00; B29; B29C; B29C63/00; B29C63/38; B29C63/42; B29C63/48; B29C65/00; B29C65/48; B29C65/66; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/24; B29C66/242; B29C66/50; B29C66/51; B29C66/53; B29C66/532; B29C66/5326; B29C66/70; B29C66/73; B29C66/737; B29C66/7371; B29C66/73715; B29C65/52; B29C65/522; B29L; B29L2031/00; B29L2031/28; B29L2031/283; B29L2031/46; B29L2031/463; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/103
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
108 words
That method of providing a tool handle, hand grip or the like with a non-conductive high-grip protective layer which comprises: telescoping a sleeve of heat reactive thermoplastic material having a length greater than the length of the hand grip and a high shrinkage coefficient over the hand grip of the handle to be protected with at least one end thereof projecting slightly beyond the end of said hand grip, and subjecting the assembly to heat adequate to shrink said sleeve into a snug fit with the juxtaposed surface of the handle with said projecting end of said sleeve curled snugly against the juxtaposed end of said hand grip.
Claim 2
Dependent Claim
108 words
That method of providing a tool handle, hand grip or the like with a non-conductive high-grip protective layer which comprises: telescoping a sleeve of heat reactive thermoplastic material having a length greater than the length of the hand grip and a high shrinkage coefficient over the hand grip of the handle to be protected with at least one end thereof projecting slightly beyond the end of said hand grip, and subjecting the assembly to heat adequate to shrink said sleeve into a snug fit with the juxtaposed surface of the handle with said projecting end of said sleeve curled snugly against the juxtaposed end of said hand grip.
Claim 3
Dependent Claim
30 words
That method defined in claim 1 characterized in applying a layer of Adhesive between the surface of the handle and the inner surface of said sleeve of heat reactive material.
Claim 4
Dependent Claim
41 words
That method defined in claim 1 characterized in the step of applying a layer of adhesive to the surface of one of the aforesaid two components before heating said heat reactive material to shrink it against the surface of said handle.
Claim 5
Dependent Claim
31 words
That method defined in claim 1 characterized in the step of applying a layer of adhesive to the interior surface of said sleeve prior to telescoping the same over the handle.
Claim 6
Dependent Claim
41 words
That method defined in claim 4 characterized in the step of applying said layer of adhesive to said sleeve by jetting adhesive onto the inner surface of the sleeve progressively from one end thereof toward the other end of the sleeve.
References Cited (Backward Citations)
US2916774A
Cited
US3072517A
Cited
US2985209A
Cited
US3359943A
Cited
US3470046A
Cited
US3578825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-02-13 | 1976-08-14 | 1977-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-13 | 1980-08-14 | 1981-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-13 | 1984-08-14 | 1985-02-13 | $7700.00 | Window Closed / Lapsed |