US4872723A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety tray
Assignee: MASTER PRODUCTS Inc A CORP OF CO
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Filing: 1988-03-03
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Granted: 1989-10-10
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Expires: 2008-03-03
Abstract
Abstract A lightweight safety tray particularly suitable for use in the passenger compartment of a moving vehicle, and including a generally rectangular support frame of low density, highly resilient polymeric material, which frame has a flat bottom, front, rear and opposing side walls, with a sunken planar shelf in the upper surface portion of the frame which is bounded by upward extensions of the frame walls. The planar shelf has an array of regular shaped cavities in its upper surface which provides a grid of longitudinally and transversely extending ribs. A generally flat plastic corrugated board covers the planar shelf. There is a flexible, resilient plastic outer coating which envelopes the entire outer surfaces of the combined frame and corrugated board, and which holds the board in place, and whereby an upper tray working surface is provided which is bounded on four sides by the upward wall extensions.
Inventors
- 👤 Thomas W. Kopf
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 02:34
CPC Classifications
B; B60; B60N; B60N3/00; B60N3/001; B60N3/002; B60R; B60R21/00
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
203 words
Safety tray comprising: (a) Support frame having a generally rectangular configuration in plan form, a flat bottom, and a front wall, a rear wall and opposing side walls, a sunken planar shelf in the upper surface of said frame bounded by upwardly extending portions of said front, rear and side walls, said planar shelf having an array of a plurality of regularly shaped cavities therein, said cavities bounded by a grid of longitudinally and transversely extending ribs, said frame composed of a low-density, highly resilient polymeric material in molded configuration; (b) generally rectangular corrugated top board comprising a flat top sheet and a flat bottom sheet of plastic material with a corrugated plastic layer affixed between said sheets, said corrugated board covering said sunken planar shelf with its lower surface supported in non binding engagement by said ribs, wherein said upwardly extending wall portions provide lateral and longitudinal support to said board, said corrugated board having ridges and furrows lying in a direction parallel to said front and rear frame walls; and (c) flexible, resilient plastic outer coating, enveloping the entire outer surface of said combined support frame and corrugated board, and said outer coating holding said board in engagement with said frame.
Claim 2
Dependent Claim
203 words
Safety tray comprising: (a) Support frame having a generally rectangular configuration in plan form, a flat bottom, and a front wall, a rear wall and opposing side walls, a sunken planar shelf in the upper surface of said frame bounded by upwardly extending portions of said front, rear and side walls, said planar shelf having an array of a plurality of regularly shaped cavities therein, said cavities bounded by a grid of longitudinally and transversely extending ribs, said frame composed of a low-density, highly resilient polymeric material in molded configuration; (b) generally rectangular corrugated top board comprising a flat top sheet and a flat bottom sheet of plastic material with a corrugated plastic layer affixed between said sheets, said corrugated board covering said sunken planar shelf with its lower surface supported in non binding engagement by said ribs, wherein said upwardly extending wall portions provide lateral and longitudinal support to said board, said corrugated board having ridges and furrows lying in a direction parallel to said front and rear frame walls; and (c) flexible, resilient plastic outer coating, enveloping the entire outer surface of said combined support frame and corrugated board, and said outer coating holding said board in engagement with said frame.
Claim 3
Dependent Claim
23 words
Apparatus as defined in claim 1 wherein the volume of said cavities is a substantial fraction of the total volume of said tray.
Claim 4
Dependent Claim
24 words
Apparatus as defined in claim 1 wherein said frame material has a density in the range of 1.0 to 2.0 lbs. per cu. ft.
Claim 5
Dependent Claim
18 words
Apparatus as defined in claim 1 wherein said frame material includes steam molded, closed cell, expanded polypropylyne beads.
Claim 6
Dependent Claim
26 words
Apparatus as defined in claim 1 wherein the upper surface of said tray has a sunken working surface bounded by said coated, upwardly extending wall portions.
Claim 7
Dependent Claim
17 words
Apparatus as defined in claim 4 wherein the average diameter of said beads is about 3/16 inch.
Claim 8
Dependent Claim
18 words
Apparatus as defined in claim 1 wherein said support frame has a bottom wall that is uniformly thick.
Claim 9
Dependent Claim
17 words
Apparatus as defined in claim 1 wherein said front wall is appreciably higher than said rear wall.
Claim 10
Dependent Claim
71 words
Apparatus as defined in claim 1 including a pair of downwardly extending harnessing straps attached at their upper ends to spaced-apart locations on the rear wall of said tray, and each of said straps having a first strip of Velcro material extending substantially along its length and a second strip of Velcro material at its lower end, said second strip having a fastening configuration that is complementary to said first strip.
Claim 11
Dependent Claim
40 words
Apparatus as defined in claim 1 wherein the forward end of said top board is at an appreciably greater height above the bottom of said frame than the rear end of said board is above the bottom of said frame
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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) | 1992-10-09 | 1993-04-10 | 1993-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-10-09 | 1997-04-10 | 1997-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-10-09 | 2001-04-10 | 2001-10-10 | $7700.00 | Window Closed / Lapsed |