Patent US3581929A successfully refreshed from Google Patents.
US3581929A
Expired / Lapsed
US
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Diamond drill core trays
Assignee: Individual
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Filing: 1969-04-23
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Granted: 1971-06-01
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Expires: 1989-04-23
Abstract
Abstract Trays adapted for supporting cylindrical mineral earth cores have cylindrically curved compartments with parallel flutes to support the cores laterally and underneath. Trays are made partially or entirely of plastic material. They may be made in different colors. Trays can be made of individual rails interlocked with each other and with an underlying baseboard. Covers fit snugly on trays which have rabbeted sidewalls.
Inventors
- 👤 Edward Franklin Guenard
- 👤 Lionel A Chretien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:42
CPC Classifications
B; B65; B65D; B65D21/00; B65D21/08; B65D21/083; B65D81/00; B65D81/02; B65D81/022
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
130 words
A tray for supporting a plurality of cylindrical mineral earth cores, comprising a horizontal bottom wall; vertical side and end walls; and a plurality of vertical partitions extending upwardly from the bottom wall, said partitions and sidewalls defining therebetween a plurality of compartments between the end walls, each compartment having a cylindrical bottom to seat a cylindrical core therein and having flat parallel spaced sides, the spacing of said sides of the compartments being substantially equal to the diameters of the cores so that the cores are prevented from lateral movements in the compartments, said partitions and sidewalls being formed of molded plastic material, said walls and partitions being formed as individual rails abutted laterally to each other, and fastening means securing the rails to the bottom and end walls.
Claim 2
Dependent Claim
130 words
A tray for supporting a plurality of cylindrical mineral earth cores, comprising a horizontal bottom wall; vertical side and end walls; and a plurality of vertical partitions extending upwardly from the bottom wall, said partitions and sidewalls defining therebetween a plurality of compartments between the end walls, each compartment having a cylindrical bottom to seat a cylindrical core therein and having flat parallel spaced sides, the spacing of said sides of the compartments being substantially equal to the diameters of the cores so that the cores are prevented from lateral movements in the compartments, said partitions and sidewalls being formed of molded plastic material, said walls and partitions being formed as individual rails abutted laterally to each other, and fastening means securing the rails to the bottom and end walls.
Claim 3
Dependent Claim
21 words
A tray as defined by claim 1 in which the walls and partitions are abutted to each other by dovetail joints.
Claim 4
Dependent Claim
22 words
A tray as defined in claim 1 in which the fastening means securing the rails to the bottom wall includes dovetail joints.
Claim 5
Dependent Claim
25 words
A tray as defined in claim 1 and each partition being substantially T-shaped in cross section and each sidewall being substantially L-shaped in cross section.
Claim 6
Dependent Claim
31 words
A tray as defined in claim 4, wherein each rail has a passage extending longitudinally therethrough to lighten the weight of the rail and to effect a saving in plastic material.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-31 | 1974-11-30 | 1975-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-31 | 1978-11-30 | 1979-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-31 | 1982-11-30 | 1983-06-01 | $7700.00 | Window Closed / Lapsed |