US3922879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable refrigerated work holder
Assignee: SILVERADO INDUSTRIES
•
Filing: 1974-05-09
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Granted: 1975-12-02
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Expires: 1994-05-09
Abstract
Abstract A refrigerated work holding system wherein refrigeration is supplied by a cooled substance within a closed container immediately below a work surface. The container is nested within an insulated tub, which maintains thermal insulation for the cooled container.
Inventors
- 👤 George R Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:59
CPC Classifications
F; F25; F25D; F25D3/00; F25D2303/00; F25D2303/08; F25D2303/083; F25D2303/0831; F25D2303/084; F25D2303/0845; F25D2331/00; F25D2331/80; F25D2331/809; F25D2331/812
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
67 words
A refrigerated work holder comprising, an insulated tub, a closed container nestable within said tub, said container having an upper surface which closes said tub and further having a refrigerant substance therein which substantially fills said container, said refrigerant substance having a Heat of fusion at least as great as that of ice, said upper surface having an area greater than the lateral cross-section of said container.
Claim 2
Dependent Claim
67 words
A refrigerated work holder comprising, an insulated tub, a closed container nestable within said tub, said container having an upper surface which closes said tub and further having a refrigerant substance therein which substantially fills said container, said refrigerant substance having a Heat of fusion at least as great as that of ice, said upper surface having an area greater than the lateral cross-section of said container.
Claim 3
Dependent Claim
19 words
The apparatus of claim 1 wherein said upper surface has an upwardly extending lip defined about the periphery thereof.
Claim 4
Dependent Claim
27 words
The apparatus of claim 1 further defined by an insulative planar member and means for registering said insulative planar member in planar contact with said upper surface.
Claim 5
Dependent Claim
29 words
The apparatus of claim 1 further defined by a heat conductive planar member and means for registering said heat conductive planar member in planar contact with said upper surface.
Claim 6
Dependent Claim
39 words
The apparatus of claim 1 wherein said insulated tub has a flat upper rim upon which the upper surface of said container is seated, said rim having first and second opposed depressions facing said container for grasping said container.
Claim 7
Dependent Claim
17 words
The apparatus of claim 1 wherein said tub has an elongated depression therein adapted to hold tools.
Claim 8
Dependent Claim
73 words
A refrigerated work holder comprising, a closed container having a volumetric shape which may occupy the volume of a tub, said container having an upper work surface, a refrigerant substance having a heat of fusion at least as great as that of ice, said refrigerant substance substantially filling said closed container, and a planar member disposed in contact with said work surface and means for aligning said planar member with said work surface.
Claim 9
Dependent Claim
73 words
A refrigerated work holder comprising, a closed container having a volumetric shape which may occupy the volume of a tub, said container having an upper work surface, a refrigerant substance having a heat of fusion at least as great as that of ice, said refrigerant substance substantially filling said closed container, and a planar member disposed in contact with said work surface and means for aligning said planar member with said work surface.
Claim 10
Dependent Claim
11 words
The apparatus of claim 7 wherein said planar member is insulative.
Claim 11
Dependent Claim
12 words
The apparatus of claim 7 wherein said planar member is heat conductive.
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) | 1978-12-01 | 1979-06-02 | 1979-12-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-01 | 1983-06-02 | 1983-12-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-01 | 1987-06-02 | 1987-12-02 | $7700.00 | Window Closed / Lapsed |