Patent US3615982A successfully refreshed from Google Patents.
US3615982A
Copy Number
Expired / Lapsed
US
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Core for use in the manufacture of furniture and method of manufacture of core
Assignee: IRVING L BANDREMER
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Filing: 1969-10-30
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Granted: 1971-10-26
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Expires: 1989-10-30
Overview & Biblio
Claims (5)
Citations (0)
Maintenance Schedule (3)
Categories & Tags (0)
Abstract
Abstract A core for use in the manufacture of furniture which comprises a plurality of superimposed thin, flexible sheets which have been adhesively secured together, and then formed into a U-shaped core, with the core being used in the manufacture of furniture, for instance, as the backing portion of a chair. The core is manufactured by superimposing a plurality of thin, flexible sheets, one upon the other, by high speed equipment, and simultaneously applying adhesive to the sheets as the superimposition process proceeds to form a stack. The stack is then positioned in matched pressure dies and with the action of pressure the core of the present invention is formed into a U-shape, although many other shapes are contemplated.
Inventors
👤 Henry Bandremer
👤 Irving L Bandremer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:49
CPC Classifications
B; B32; B32B; B32B29/00; B32B29/002; B32B29/005; A; A47; A47C; A47C5/00; A47C5/14; B27; B27D; B27D1/00; B27D1/04; B27D1/08; B27D1/083; B31; B31F; B31F1/00; B31F1/0003; B31F1/0006; B31F1/0009; B32B37/00; B32B37/12; B32B7/00; B32B7/04; B32B7/12; D; D21; D21H; D21H27/00; D21H27/18; D21H27/22; D21H27/26; D21H5/00; D21H5/0085; D21H5/0087; B32B2309/00; B32B2309/12; B32B2309/70; B32B2317/00; B32B2317/12; B32B2317/20; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
23 words
The method of claim 1 wherein said pressure is applied to said stack in such a way as to form a U-shaped core.
Claim 2
Dependent Claim
20 words
The method of claim 1 wherein said pressure is applied by matched pressure dies, exerting a pressure of 60 p.s.i.
Claim 3
Dependent Claim
26 words
The method of claim 1 wherein said steps of adhesive coating and superimposing of said sheets to form a stack are carried out by automatic machinery.
Claim 4
Dependent Claim
14 words
The method of claim 1 wherein said adhesive is a tackified polyvInyl alcohol adhesive.
Claim 5
Dependent Claim
12 words
The method of claim 1 wherein said sheets are of chipboard paper.
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)
1974-10-25
1975-04-26
1975-10-26
$2000.00
Window Closed / Lapsed
7.5 Years (Year 8)
1978-10-25
1979-04-26
1979-10-26
$3760.00
Window Closed / Lapsed
11.5 Years (Year 12)
1982-10-25
1983-04-26
1983-10-26
$7700.00
Window Closed / Lapsed