Patent US2704200A successfully refreshed from Google Patents.
Patent US3782582A successfully refreshed from Google Patents.
US3782582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Core tray
Assignee: Individual
•
Filing: 1971-04-26
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Granted: 1974-01-01
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Expires: 1991-04-26
Abstract
Abstract A core tray constructed of a lightweight material with individual flutes each having an arc shaped bottom, to accommodate a cylindrical core sample, and upstanding side and divider walls, to separate one sample from another. The core tray has sloping side walls terminating at their upper ends in rounded shoulders and legs are formed on the bottoms of the side walls. Rounded junctions are formed between the legs and tray bottom, which are arranged such that the top of one core tray will slide easily into the bottom of another tray stacked thereon between the legs of the upper tray. The rounded shoulder at the top of one tray fits closely into the rounded junction of another tray, and handles inset into the ends of each tray are constructed to have a finger ridge therein by which a person may securely grasp the trays during handling.
Inventors
- 👤 L Lybbert
- 👤 D Atwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:25
CPC Classifications
B; B65; B65D; B65D1/00; B65D1/34; B65D1/36
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
165 words
A core tray comprising spaced end walls; spaced side walls connected to said end walls, the tops of said spaced end walls and spaced side walls forming a continuous, level, uppermost surface of the tray; a bottom interconnecting said end and side walls whereby said end and side walls are inclined outwardly from their tops to engagement with the bottom; a curved shoulder formed at the outermost top edge of each side wall; continuations of the end walls forming feet projecting downwardly below the bottom, the innermost bottom edges of the feet being curved, whereby the tray will readily slide up and over a shoulder of a tray stacked therebeneath when pulled; a curved, outwardly extending junction of each foot with the bottom, aligned beneath each curved shoulder, the curved shoulder being adapted to closely nest in the curved junction therebelow; spaced upstanding divider walls between the side walls and extending between the end walls; and handle means formed in each of the end walls.
Claim 2
Dependent Claim
165 words
A core tray comprising spaced end walls; spaced side walls connected to said end walls, the tops of said spaced end walls and spaced side walls forming a continuous, level, uppermost surface of the tray; a bottom interconnecting said end and side walls whereby said end and side walls are inclined outwardly from their tops to engagement with the bottom; a curved shoulder formed at the outermost top edge of each side wall; continuations of the end walls forming feet projecting downwardly below the bottom, the innermost bottom edges of the feet being curved, whereby the tray will readily slide up and over a shoulder of a tray stacked therebeneath when pulled; a curved, outwardly extending junction of each foot with the bottom, aligned beneath each curved shoulder, the curved shoulder being adapted to closely nest in the curved junction therebelow; spaced upstanding divider walls between the side walls and extending between the end walls; and handle means formed in each of the end walls.
Claim 3
Dependent Claim
30 words
A core tray as in claim 1, wherein the bottom between adjacent side walls and divider walls and between adjacent divider walls is arcuately curved to receive core samples therein.
Claim 4
Dependent Claim
34 words
A core tray as in claim 2, wherein the handle means comprises recesses extending inwardly and upwardly in the end walls; and a downwardly projecting lip is formed at the inlet to each recess.
Claim 5
Dependent Claim
12 words
A core tray as in claim 2, formed entirely of foam plastic.
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) | 1976-12-31 | 1977-07-02 | 1978-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-31 | 1981-07-02 | 1982-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-31 | 1985-07-02 | 1986-01-01 | $7700.00 | Window Closed / Lapsed |