US4305773A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Art restoration table
Assignee: DALLETT HOOPES ESQ
•
Filing: 1979-12-04
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Granted: 1981-12-15
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Expires: 1999-12-04
Abstract
Abstract A restoration apparatus for restoring a painting and bonding a canvas backing to a painting having a panel member and a frame attached thereon. A flexible mat is stretched over the frame to form an airtight chamber which is in communication with a source of vacuum. A planar heating device is yieldably disposed over said mat. The heating device is comprised of a clear glass panel with heating elements in contact therewith. A heating control means is in communication with the heating device.
Inventors
- 👤 Richard O. Hendricks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:41
CPC Classifications
B; B30; B30B; B30B5/00; B30B5/02; B30B15/00; B30B15/34; B44; B44D; B44D7/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
77 words
A restoration apparatus for restoring a painting being comprised of: a planar glass panel member positioned within a frame; a flexible mat stretched over and attached to said frame to form an airtight chamber relative to one side of said glass panel within which chamber said painting is situated; a vacuum means in communication with said airtight chamber; heating means in contact with said glass panel; and means to adjustably control the temperature of said heating means.
Claim 2
Dependent Claim
77 words
A restoration apparatus for restoring a painting being comprised of: a planar glass panel member positioned within a frame; a flexible mat stretched over and attached to said frame to form an airtight chamber relative to one side of said glass panel within which chamber said painting is situated; a vacuum means in communication with said airtight chamber; heating means in contact with said glass panel; and means to adjustably control the temperature of said heating means.
Claim 3
Dependent Claim
85 words
A restoration apparatus for bonding a canvas backing to a painting being comprised of: a planar glass panel member positioned within a frame; a flexible mat stretched over and attached to said frame to form an airtight chamber relative to one side of said glass panel within which chamber said painting and canvas backing are situated; a vacuum means in communication with said airtight chamber; planar heating means in contact with said glass panel; and means to adjustably control the temperature of said heating means.
Claim 4
Dependent Claim
85 words
A restoration apparatus for bonding a canvas backing to a painting being comprised of: a planar glass panel member positioned within a frame; a flexible mat stretched over and attached to said frame to form an airtight chamber relative to one side of said glass panel within which chamber said painting and canvas backing are situated; a vacuum means in communication with said airtight chamber; planar heating means in contact with said glass panel; and means to adjustably control the temperature of said heating means.
Claim 5
Dependent Claim
17 words
A restoration apparatus as set forth in claim 1 or 2 wherein said glass panel is clear.
Claim 6
Dependent Claim
21 words
A restoration apparatus as set forth in claim 1 or 2 wherein said heating means are spaced within said glass panel.
References Cited (Backward Citations)
US3738890A
Cited
US4251314A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-12-14 | 1985-06-15 | 1985-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-12-14 | 1989-06-15 | 1989-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-12-14 | 1993-06-15 | 1993-12-15 | $7700.00 | Window Closed / Lapsed |