Patent US4277890A successfully refreshed from Google Patents.
US4277890A
Expired / Lapsed
US
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Device for cutting multiple plies of material
Assignee: Individual
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Filing: 1979-12-03
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Granted: 1981-07-14
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Expires: 1999-12-03
Abstract
Abstract An oscillating knife in a textile cutting machine is inclined to cut multiple plies of material generally substantially 90 degrees to each ply by inclining the cutting machine or a knife blade.
Inventors
- 👤 Lawrence A. Portnoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:15
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/38; B26F1/3806; B26F1/3813; B26F1/382; B26B; B26B7/00; Y; Y10; Y10S; Y10S83/00; Y10S83/929; Y10S83/936; Y10S83/939
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
116 words
A device for cutting multiple plies of cloth having extended substantially flat surfaces; said devise comprising a base for being placed on a substantially horizontal surface; a column attached to said base, means for oscillating a knife for cutting said cloth, said oscillating means being attached to said column; a knife having an edge for cutting said cloth attached to said oscillating means; and means for inclining said edge of said knife with respect to a vertical axis with respect to said substantially horizontal surface at such an angle whereby said knife edge, in operation, cuts the said multiple plies of cloth at an angle of substantially 90 degrees to the extended surface of each ply.
Claim 2
Independent Claim
116 words
A device for cutting multiple plies of cloth having extended substantially flat surfaces; said devise comprising a base for being placed on a substantially horizontal surface; a column attached to said base, means for oscillating a knife for cutting said cloth, said oscillating means being attached to said column; a knife having an edge for cutting said cloth attached to said oscillating means; and means for inclining said edge of said knife with respect to a vertical axis with respect to said substantially horizontal surface at such an angle whereby said knife edge, in operation, cuts the said multiple plies of cloth at an angle of substantially 90 degrees to the extended surface of each ply.
Claim 3
Dependent Claim
28 words
The device of claim 1 wherein said inclining means comprises: at least one shim member attached to a base of the cutting machine, to incline the oscillating knife.
Claim 4
Dependent Claim
27 words
The device of claim 1 wherein said inclining means comprises: a juncture of said column and said base at a predetermined acute angle less than 90 degrees.
Claim 5
Dependent Claim
39 words
The device of claim 1 wherein said inclining means comprises: an edge of said knife blade that deviates from a vertical axis so that the cutting edge of the knife blade is substantially perpendicular to each ply of material.
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) | 1984-07-13 | 1985-01-12 | 1985-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-07-13 | 1989-01-12 | 1989-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-07-13 | 1993-01-12 | 1993-07-14 | $7700.00 | Window Closed / Lapsed |