Patent US5640510A successfully refreshed from Google Patents.
Patent US3796423A successfully refreshed from Google Patents.
US3796423A
Expired / Lapsed
US
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Buckle folder fold roller
Assignee: Boeing North American Inc
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Filing: 1972-09-05
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Granted: 1974-03-12
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Expires: 1992-09-05
Abstract
Abstract An improved buckle folder fold roller comprises a roller body having a series of axially spaced metal bands and alternating resilient collars of greater width than the metal bands. The resilient collars are secured to the roller body in a prescribed manner to have a controllably larger diameter than the metal bands so that they engage the sheet material to be folded prior to the metal bands and thereafter maintain precise control of the sheets as they proceed through a nip comprised of coacting fold rollers arranged in a prescribed manner.
Inventors
- 👤 G Shuster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 09:32
CPC Classifications
B; B65; B65H; B65H45/00; B65H45/12; B65H45/14; B65H45/142; B65H45/147; B65H27/00; B65H2404/00; B65H2404/10; B65H2404/13; B65H2404/132; B65H2404/1321; B65H2404/18; B65H2404/185
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
203 words
In a buckle folder wherein the buckled portion of a sheet is directed into the nip between adjacent buckle fold rollers, an improved buckle fold roller comprising an elongated, cylindrical body member having journalling means at each end thereof for rotatably mounting said roller: a plurality of spaced apart, cylindrical band portions formed on said body member and having metallic, peripheral drive surfaces; a series of spaced apart, annular recesses alternating with said band portions, said recesses being wider axially of said body member and having a predetermined radius less than said band portion drive surfaces; a resilient, annular collar secured in each said recess for rotation with said body member and presenting a peripheral drive surface having a radius 0.001 to 0.007 inch greater than the radius of said band portion drive surfaces; and annular bearer means at each end of said body member, said bearer means having a radius less than the radius of said resilient annular collar peripheral drive surfaces but greater than the radius of said band portion peripheral drive surfaces whereby a predetermined minimum clearance is maintained between the band portion peripheral drive surfaces of said roller and corresponding band portion peripheral drive surfaces of a coacting roller.
Claim 2
Dependent Claim
203 words
In a buckle folder wherein the buckled portion of a sheet is directed into the nip between adjacent buckle fold rollers, an improved buckle fold roller comprising an elongated, cylindrical body member having journalling means at each end thereof for rotatably mounting said roller: a plurality of spaced apart, cylindrical band portions formed on said body member and having metallic, peripheral drive surfaces; a series of spaced apart, annular recesses alternating with said band portions, said recesses being wider axially of said body member and having a predetermined radius less than said band portion drive surfaces; a resilient, annular collar secured in each said recess for rotation with said body member and presenting a peripheral drive surface having a radius 0.001 to 0.007 inch greater than the radius of said band portion drive surfaces; and annular bearer means at each end of said body member, said bearer means having a radius less than the radius of said resilient annular collar peripheral drive surfaces but greater than the radius of said band portion peripheral drive surfaces whereby a predetermined minimum clearance is maintained between the band portion peripheral drive surfaces of said roller and corresponding band portion peripheral drive surfaces of a coacting roller.
Claim 3
Dependent Claim
25 words
In a buckle folder as set forth in claim 7 wherein the resilient annular collars have a durometer hardness value in the range of 65-90.
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) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |