Patent US3734560A successfully refreshed from Google Patents.
US3734560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retractable hinge structure for a truck tailgate
Assignee: Individual
•
Filing: 1971-05-20
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Granted: 1973-05-22
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Expires: 1991-05-20
Abstract
Abstract Hinge structure carried by a truck engageable with the truck tailgate and retractable into the truck for disengagement from the tailgate permitting convenient tailgate removal and reinstallation. A hinge pin is spring biased outwardly into tailgate engagement with manual release means permitting opposite hinge pin movement during tailgate disengagement. A housing carries the hinge pin in a captive manner.
Inventors
- 👤 C Cramblet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:34
CPC Classifications
B; B62; B62D; B62D33/00; B62D33/02; B62D33/023; B62D33/027; B62D33/0273
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
155 words
Retractable hinge structure carried by a truck side wall for swingably mounting a truck tailgate in a detachable manner, said structure comprising, a housing mounted upon the side wall structure of a truck adjacent the tailgate opening and extending interiorly of said side wall, a hinge pin assembly mounted for axial movement within said housing and extending outwardly therefrom and thereat terminating in an enlarged head portion, said head portion axially engageable with a cup-shaped receptacle carried by the tailgate, spring means axially biasing said hinge pin into tailgate engagement, and release means carried by said head portion of the hinge pin and extending radially therefrom for engagement with said cup shaped receptacle whereby the tailgate and hinge pin are coupled for rotational movement, said release means permitting manually urged movement of said hinge pin opposite to the action of spring means for axial disengagement of the hinge pin from the tailgate during tailgate removal.
Claim 2
Dependent Claim
155 words
Retractable hinge structure carried by a truck side wall for swingably mounting a truck tailgate in a detachable manner, said structure comprising, a housing mounted upon the side wall structure of a truck adjacent the tailgate opening and extending interiorly of said side wall, a hinge pin assembly mounted for axial movement within said housing and extending outwardly therefrom and thereat terminating in an enlarged head portion, said head portion axially engageable with a cup-shaped receptacle carried by the tailgate, spring means axially biasing said hinge pin into tailgate engagement, and release means carried by said head portion of the hinge pin and extending radially therefrom for engagement with said cup shaped receptacle whereby the tailgate and hinge pin are coupled for rotational movement, said release means permitting manually urged movement of said hinge pin opposite to the action of spring means for axial disengagement of the hinge pin from the tailgate during tailgate removal.
Claim 3
Dependent Claim
46 words
The retractable hinge structure as claimed in claim 1 wherein the cup-shaped receptacle of the tailgate is recessed from the tailgate edge, said head portion of the release means being inwardly disposed from the tailgate edge when engaged with said receptacle and thereby concealed from view.
Claim 4
Dependent Claim
26 words
The retractable hinge structure as claimed in claim 2 wherein a limit stop limiting outward axial movement of said pin is centrally disposed within said housing.
References Cited (Backward Citations)
US698216A
Cited
US2239734A
Cited
FR1068085A
Cited
US2742317A
Cited
US2821431A
Cited
US2990215A
Cited
US3143760A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-05-21 | 1976-11-20 | 1977-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-05-21 | 1980-11-20 | 1981-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-05-21 | 1984-11-20 | 1985-05-22 | $7700.00 | Window Closed / Lapsed |