Patent US4141681A successfully refreshed from Google Patents.
US4141681A
Expired / Lapsed
US
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Support structure for ceramic ware
Assignee: Acme Marls Ltd
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Filing: 1977-05-18
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Granted: 1979-02-27
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Expires: 1997-05-18
Abstract
Abstract A support structure for ceramic ware during firing in which very lightweight tubular props are used in combination with circular caps having projections which rest in the tops of the upright props. Each cap has a raised projection on the upper side which locates in a hole in a shelf. The shelves each have three such holes disposed in a triangular formation, each arranged midway between a respective edge of the shelf and a centerline parallel to the edge to reduce undesirable thermal effects during firing.
Inventors
- 👤 William J. Lovatt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 04:46
CPC Classifications
F; F27; F27D; F27D5/00; F27D5/0006
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
125 words
A support structure for supporting ceramic ware during firing, the structure comprising, in combination, a rectangular base having at least three circular holes therein, each hole being positioned mid-way between a respective edge of the base and a center line thereof parallel to said respective edge; a plurality of lightweight cylindrical tubular props equal in number to said circular holes and firmly located upright in respective ones of said holes in use, the base being of a thickness comparable to the diameter of said props; and a plurality of caps equal in number to said circular holes, each of said caps comprising a downward projection which loosely locates the cap on top of a respective one of said tubular props, and a small upward projection.
Claim 2
Dependent Claim
125 words
A support structure for supporting ceramic ware during firing, the structure comprising, in combination, a rectangular base having at least three circular holes therein, each hole being positioned mid-way between a respective edge of the base and a center line thereof parallel to said respective edge; a plurality of lightweight cylindrical tubular props equal in number to said circular holes and firmly located upright in respective ones of said holes in use, the base being of a thickness comparable to the diameter of said props; and a plurality of caps equal in number to said circular holes, each of said caps comprising a downward projection which loosely locates the cap on top of a respective one of said tubular props, and a small upward projection.
Claim 3
Dependent Claim
72 words
A support structure according to claim 1 and further comprising a rectangular shelf having substantially the same dimensions in plan as the base, the shelf also having a plurality of circular holes equal in number to, and disposed in the same relative positions as those of the base and being supported in use on said caps, the upward projections thereof locating in, but not extending entirely through, the holes of the shelf.
Claim 4
Dependent Claim
26 words
A support structure according to claim 1 wherein three circular holes only are provided in said base and are disposed at the apices of a triangle.
Claim 5
Dependent Claim
31 words
A support structure according to claim 2 wherein three circular holes only are provided in each of said base and said shelf and are disposed at the apices of respective triangles.
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) | 1982-02-26 | 1982-08-28 | 1983-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-26 | 1986-08-28 | 1987-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-26 | 1990-08-28 | 1991-02-27 | $7700.00 | Window Closed / Lapsed |