Patent US4802705A successfully refreshed from Google Patents.
US4802705A
Expired / Lapsed
US
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Truck bed liner and method of forming same
Assignee: Dee Zee Inc
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Filing: 1988-01-04
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Granted: 1989-02-07
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Expires: 2008-01-04
Abstract
Abstract The product and process of forming a flat mat as a liner for covering the exposed floor surface of a truck bed, the process comprising the flattening of a coiled strip of an aluminum alloy having up to 1.5% manganese therein and a thickness of from 0.063 to 0.100 inches, cutting and forming the flattened strip into a liner mat having certain dimensions rolling up the cut liner mat, heat treating the roll at 650° F. for 2 hours, cooling the heat treated roll at an ambient temperature, shipping the cooled roll in roll form and unrolling the shipped roll into a flat condition for subsequent installation onto the truck bed floor surface; the product comprising the mat formed thereby having the composition and physical characteristics set forth.
Inventors
- 👤 Dennis L. Elwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:19
CPC Classifications
B; B60; B60R; B60R13/00; B60R13/01; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
78 words
A liner for protecting the corrugated or flat exposed floor of a truck bed comprising a flat mat of an aluminum alloy conforming generally to the outline of the truck bed, said mat originally formed in a coil, said coil comprising a strip having a length considerably longer than said mat, said coil having been flattened and formed into a plurality of mats of identical shape, each of said mats again formed into a roll for shipping purposes.
Claim 2
Dependent Claim
78 words
A liner for protecting the corrugated or flat exposed floor of a truck bed comprising a flat mat of an aluminum alloy conforming generally to the outline of the truck bed, said mat originally formed in a coil, said coil comprising a strip having a length considerably longer than said mat, said coil having been flattened and formed into a plurality of mats of identical shape, each of said mats again formed into a roll for shipping purposes.
Claim 3
Dependent Claim
24 words
The liner of claim 1 wherein said liner includes up to about 1.5% manganese and has a thickness of from 0.063 to 0.100 inches.
Claim 4
Dependent Claim
32 words
The liner of claim 2 wherein said liner has been heat treated in a roll form for shipping purposes to 650° F. for a minimum of 2 hours, then permitted to cool.
Claim 5
Dependent Claim
19 words
The liner of claim 3 wherein said cooled roll is banded and placed in a carton for shipping purposes.
Claim 6
Dependent Claim
19 words
The liner of claim 4 wherein said shipped roll is adapted to be unrolled into a substantially flat condition.
Claim 7
Dependent Claim
55 words
The liner of claim 5 wherein said liner, when installed onto a corrugated truck bed, forms a plurality of spaced air spaces between said liner and the truck bed whereby air may flow beneath said liner and over predetermined portions of the truck bed for installation, said flat condition retained without further and additional means.
Claim 8
Dependent Claim
114 words
A process of forming a liner for installation onto a flat exposed floor surface of a truck bed, process comprising the steps of forming an elongated strip of aluminum alloy having a predetermined thickness and width into a coil; unrolling said coil and flattening said strip; cutting said strip into liner mats, each of a predetermined shape; rolling each said mat into a roll of a predetermined size; subjecting each rolled mat to a temperature higher than ambient for a predetermined time; cooling said heated rolled mat; packaging said cooled mat for shipment; unpackaging and unrolling said shipped mat into a flat condition; and installing said flat mat onto the truck bed floor surface.
Claim 9
Dependent Claim
114 words
A process of forming a liner for installation onto a flat exposed floor surface of a truck bed, process comprising the steps of forming an elongated strip of aluminum alloy having a predetermined thickness and width into a coil; unrolling said coil and flattening said strip; cutting said strip into liner mats, each of a predetermined shape; rolling each said mat into a roll of a predetermined size; subjecting each rolled mat to a temperature higher than ambient for a predetermined time; cooling said heated rolled mat; packaging said cooled mat for shipment; unpackaging and unrolling said shipped mat into a flat condition; and installing said flat mat onto the truck bed floor surface.
Claim 10
Dependent Claim
19 words
The process of claim 7 and further wherein said strip has a composition including up to 1.56 of manganese.
Claim 11
Dependent Claim
19 words
The process of claim 8 and further wherein said strip has a thickness of from 0.063 to 0.100 inches.
Claim 12
Dependent Claim
46 words
The process of claim 9 and further wherein said heat treating comprises placing said rolled mat of a predetermined size into a heating chamber, bringing the temperature of the chamber up to 650° F. and maintaining said temperature of 650° F. for at least 2 hours.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-02-07 | 1992-08-08 | 1993-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-07 | 1996-08-08 | 1997-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-07 | 2000-08-08 | 2001-02-07 | $7700.00 | Window Closed / Lapsed |