US3704924A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Removable wear plate for fifth wheel
Assignee: Individual
•
Filing: 1971-03-12
•
Granted: 1972-12-05
•
Expires: 1991-03-12
Abstract
Abstract A replaceable wear plate for the fifth wheels of automotive vehicles having engaged bearing surfaces. The wear plate is a substantially flat sheet of disposable material having a low coefficient of friction releasably secured in fixed position on one of the bearing surfaces for engagement with the other bearing surface and is removable from its respective surface for replacement.
Inventors
- 👤 Randy W Lowry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:57
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0885
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
104 words
In combination with the fifth wheel of an automotive vehicle having a substantially flat bearing surface, a wear plate disposed flatly against the bearing surface having an exposed surface and a peripheral edge, portions of the edge of the bearing surface being rabbeted to provide a flange of reduced thickness; a securing plate fitted in facing engagement with the flange of the wear plate with the aggregate thickness of the flange and securing plate being less than the thickness of the wear plate; and means releasably mounting the securing plate on the bearing surface in clamping relation to the flange of the wear plate.
Claim 2
Dependent Claim
104 words
In combination with the fifth wheel of an automotive vehicle having a substantially flat bearing surface, a wear plate disposed flatly against the bearing surface having an exposed surface and a peripheral edge, portions of the edge of the bearing surface being rabbeted to provide a flange of reduced thickness; a securing plate fitted in facing engagement with the flange of the wear plate with the aggregate thickness of the flange and securing plate being less than the thickness of the wear plate; and means releasably mounting the securing plate on the bearing surface in clamping relation to the flange of the wear plate.
Claim 3
Dependent Claim
155 words
In combination with a fifth wheel having an upwardly facing substantially flat bearing surface providing a centrally disposed draft connection with a substantially V-shaped passage from an edge of the bearing surface to the draft connection; a substantially flat arcuate wear plate having an upper surface and a peripheral edge, portions of the edge of the upper surface being rabbeted to define a flange; a securing plate having a lower surfAce and a peripheral edge, portions of the edge of the lower surface being rabbeted to provide a flange fitted in facing engagement with the flange of the wear plate, said flanges in aggregate thickness being appreciably less than the thickness of the plate; and means releasably mounting the securing plate on the bearing surface with the flange thereof in clamping relation to the flange of the wear plate with the wear plate disposed symmetrically of the draft connection and opposite to the passage therefrom.
Claim 4
Dependent Claim
155 words
In combination with a fifth wheel having an upwardly facing substantially flat bearing surface providing a centrally disposed draft connection with a substantially V-shaped passage from an edge of the bearing surface to the draft connection; a substantially flat arcuate wear plate having an upper surface and a peripheral edge, portions of the edge of the upper surface being rabbeted to define a flange; a securing plate having a lower surfAce and a peripheral edge, portions of the edge of the lower surface being rabbeted to provide a flange fitted in facing engagement with the flange of the wear plate, said flanges in aggregate thickness being appreciably less than the thickness of the plate; and means releasably mounting the securing plate on the bearing surface with the flange thereof in clamping relation to the flange of the wear plate with the wear plate disposed symmetrically of the draft connection and opposite to the passage therefrom.
Claim 5
Dependent Claim
78 words
The combination of claim 2 in which the fifth wheel has engaged bearing surfaces and the wear plate is constructed of a disposable material having a relatively high degree of lubricity whereby a trailer tongue can be engaged in the draft connection for drafting operations with the wear plate operating to lubricate movement of the engaged bearing surfaces so as to avoid rapid wearing during use without the necessity of frequent applications of grease to the bearing surfaces.
References Cited (Backward Citations)
US3174812A
Cited
US3337277A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-12-05 | 1976-06-05 | 1976-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-05 | 1980-06-05 | 1980-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-05 | 1984-06-05 | 1984-12-05 | $7700.00 | Window Closed / Lapsed |