Patent US4169635A successfully refreshed from Google Patents.
US4169635A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fifth wheel bearing plate cover
Assignee: EASTERN TOOL AND MACHINE Inc
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Filing: 1978-02-17
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Granted: 1979-10-02
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Expires: 1998-02-17
Abstract
Abstract A bearing plate cover for the fifth wheel of a vehicle engaging the entire bearing and non-bearing surfaces thereof. The bearing plate cover is composed of a flat sheet plastic material having a low friction coefficient and high deflection characteristics so as to provide a wear resistant slippery surface for contact with another bearing surface.
Inventors
- 👤 Frank Szalay
- 👤 Joseph C. Kubik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:09
CPC Classifications
B; B62; B62D; B62D53/00; B62D53/04; B62D53/08; B62D53/0885
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
130 words
In combination with a fifth wheel of a vehicle having a substantially flat semi-circular bearing plate with a pair of spaced parallel outwardly extending sloping guides on one side thereof forming a substantially V-shaped passage between the guides extending into the flat bearing plate; a bearing plate cover comprising a section of sheet plastic material having a low friction coefficient and formed in a shape conforming to and covering all of the bearing plate and the sloping guides, a metal member attached coextensively to the underside of said bearing plate cover along one edge thereof for adding rigidity thereto, said metal member extending inwardly from the edge of said bearing plate cover and means for securing the bearing plate cover and said metal member to the bearing plate and guides.
Claim 2
Dependent Claim
130 words
In combination with a fifth wheel of a vehicle having a substantially flat semi-circular bearing plate with a pair of spaced parallel outwardly extending sloping guides on one side thereof forming a substantially V-shaped passage between the guides extending into the flat bearing plate; a bearing plate cover comprising a section of sheet plastic material having a low friction coefficient and formed in a shape conforming to and covering all of the bearing plate and the sloping guides, a metal member attached coextensively to the underside of said bearing plate cover along one edge thereof for adding rigidity thereto, said metal member extending inwardly from the edge of said bearing plate cover and means for securing the bearing plate cover and said metal member to the bearing plate and guides.
Claim 3
Dependent Claim
22 words
The combination of claim 1 and wherein the sheet plastic material is polyethylene having a low friction coefficient and high deflection characteristics.
Claim 4
Dependent Claim
25 words
The combination of claim 1 and wherein the means for adding rigidity to the bearing plate cover is an arcuately shaped piece of sheet metal.
Claim 5
Dependent Claim
21 words
The combination of claim 3 and wherein said sheet metal member is attached to said bearing plate cover by an adhesive.
Claim 6
Dependent Claim
20 words
The combination of claim 3 and wherein said metal sheet member is attached to said bearing plate cover by rivets.
Claim 7
Dependent Claim
26 words
The combination of claim 1 and wherein the means for securing the bearing plate cover and said metal member comprises a plurality of counter sunk rivets.
Claim 8
Dependent Claim
22 words
The combination of claim 1 and wherein the means for securing the bearing plate cover and said metal member is an adhesive.
Claim 9
Dependent Claim
18 words
The combination of claim 1 and wherein the sheet plastic material is an ultra high molecular weight polyethylene.
Claim 10
Dependent Claim
18 words
The combination of claim 1 and wherein the sheet plastic material has a thickness of substantially one-quarter inch.
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) | 1982-10-01 | 1983-04-02 | 1983-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-10-01 | 1987-04-02 | 1987-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-10-01 | 1991-04-02 | 1991-10-02 | $7700.00 | Window Closed / Lapsed |