Patent US3870151A successfully refreshed from Google Patents.
US3870151A
Expired / Lapsed
US
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Tray
Assignee: DURACO INDUSTRIAL PRODUCTS Inc
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Filing: 1973-07-30
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Granted: 1975-03-11
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Expires: 1993-07-30
Abstract
Abstract A cross-nesting tray provided with means for interlocking an upper second tray in a lower first tray when said upper tray is cross-nested in a like lower tray. If desired, vertically registering stacking means can be provided on the tops of tray walls and in the bottom end portion of said walls to permit stacking a like third tray on said first tray, over said second tray, and cross-nested in said second tray.
Inventors
- 👤 Lewis T Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:22
CPC Classifications
B; B65; B65D; B65D21/00; B65D21/02; B65D21/04; B65D21/043; B65D21/046
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
188 words
A tray comprising: a pair of upstanding opposed first walls; a pair of upstanding opposed second walls, having a length greater than said first walls, joined to said first walls along the upstanding edges thereof; said second walls having a height, substantially along the full length thereof, which is less than the height of said first walls for permitting cross-nesting of an upper tray in a like lower tray between the higher first walls thereof; a bottom panel joined to the lower end portions of said first and said second walls to provide a generally rectangular open top structure; a generally flat wall means formed in each end portion of, and recessed inwardly from a nonrecessed portion of, each of said second walls; and an outwardly extending shoulder formed in each of said second walls at each junction of a said flat wall means and a said nonrecessed portion of said second walls for, together with said flat wall means, interlocking said second walls of an upper tray with said first walls of a like lower tray when an upper tray is cross-nested in a like lower tray.
Claim 2
Dependent Claim
188 words
A tray comprising: a pair of upstanding opposed first walls; a pair of upstanding opposed second walls, having a length greater than said first walls, joined to said first walls along the upstanding edges thereof; said second walls having a height, substantially along the full length thereof, which is less than the height of said first walls for permitting cross-nesting of an upper tray in a like lower tray between the higher first walls thereof; a bottom panel joined to the lower end portions of said first and said second walls to provide a generally rectangular open top structure; a generally flat wall means formed in each end portion of, and recessed inwardly from a nonrecessed portion of, each of said second walls; and an outwardly extending shoulder formed in each of said second walls at each junction of a said flat wall means and a said nonrecessed portion of said second walls for, together with said flat wall means, interlocking said second walls of an upper tray with said first walls of a like lower tray when an upper tray is cross-nested in a like lower tray.
Claim 3
Dependent Claim
188 words
A tray comprising: a pair of upstanding opposed first walls; a pair of upstanding opposed second walls, having a length greater than said first walls, joined to said first walls along the upstanding edges thereof; said second walls having a height, substantially along the full length thereof, which is less than the height of said first walls for permitting cross-nesting of an upper tray in a like lower tray between the higher first walls thereof; a bottom panel joined to the lower end portions of said first and said second walls to provide a generally rectangular open top structure; a generally flat wall means formed in each end portion of, and recessed inwardly from a nonrecessed portion of, each of said second walls; and an outwardly extending shoulder formed in each of said second walls at each junction of a said flat wall means and a said nonrecessed portion of said second walls for, together with said flat wall means, interlocking said second walls of an upper tray with said first walls of a like lower tray when an upper tray is cross-nested in a like lower tray.
Claim 4
Dependent Claim
188 words
A tray comprising: a pair of upstanding opposed first walls; a pair of upstanding opposed second walls, having a length greater than said first walls, joined to said first walls along the upstanding edges thereof; said second walls having a height, substantially along the full length thereof, which is less than the height of said first walls for permitting cross-nesting of an upper tray in a like lower tray between the higher first walls thereof; a bottom panel joined to the lower end portions of said first and said second walls to provide a generally rectangular open top structure; a generally flat wall means formed in each end portion of, and recessed inwardly from a nonrecessed portion of, each of said second walls; and an outwardly extending shoulder formed in each of said second walls at each junction of a said flat wall means and a said nonrecessed portion of said second walls for, together with said flat wall means, interlocking said second walls of an upper tray with said first walls of a like lower tray when an upper tray is cross-nested in a like lower tray.
Claim 5
Dependent Claim
27 words
A tray according to claim 1 wherein each of said second walls has a height which is not greater than one-half the height of said first walls.
Claim 6
Dependent Claim
26 words
A tray according to claim 1 wherein each of said second walls has a height which is less than one-half the height of said first walls.
Claim 7
Dependent Claim
29 words
A tray according to claim 2 wherein vertically registering stacking means are provided on the top of, and in the bottom end portion of, each of said first walls.
Claim 8
Dependent Claim
36 words
A tray according to claim 4 wherein said stacking means provided in the bottom end portion of each of said first walls comprises an inwardly and generally horizontally extending shoulder formed in said bottom end portion.
Claim 9
Dependent Claim
41 words
A tray according to claim 2 wherein a portion of each of said generally flat wall means formed in each end portion of each of said second walls comprises a corner post section having the same height as said first walls.
Claim 10
Dependent Claim
55 words
A tray according to claim 6 wherein vertically registering stacking means are provided on the top of each of said first walls, on the top of each said corner post sections, in the bottom end portion of each of said first walls, and in the bottom end portion of each of said corner post sections.
Claim 11
Dependent Claim
95 words
A tray according to claim 7 wherein: said stacking means provided on the top of each of said first walls and on the top of each said corner post section comprises a generally flat surface extending generally along the top of said first walls and the top of said corner post sections; and said stacking means provided in the bottom end portion of each of said first walls and in the bottom end portion of each of said corner post sections comprises an inwardly and generally horizontally extending shoulder formed in said bottom end portions.
Claim 12
Dependent Claim
67 words
A tray according to claim 8 wherein: each of said shoulders has a downwardly extending inner face means contiguous with the horizontally extending portion thereof for engaging the upper inner wall surfaces of said first walls and said corner post sections when an upper tray is stacked on a lower tray whereby said upper tray and said lower tray are interlocked against both longitudinal and transverse movement.
Claim 13
Dependent Claim
40 words
A tray according to claim 2 wherein at least one drainage opening is provided in each of said first and Said second walls with the bottom of said opening being essentially flush with the upper surface of said bottom panel.
Claim 14
Dependent Claim
15 words
A tray according to claim 2 wherein said bottom panel is of open gridwork construction.
Claim 15
Dependent Claim
51 words
A tray according to claim 11 wherein: said open gridwork construction comprises a plurality of intersecting grid members joined at the ends thereof to said walls in an upwardly curved junction; and a curved fillet is provided between each pair of adjacent grid members at the intersections of said grid members.
Claim 16
Dependent Claim
40 words
A tray according to claim 9 wherein at least one drainage opening is provided in each of said first and said second walls with the bottom of said opening being essentially flush with the upper surface of said bottom panel.
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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |