US3858476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accordion, folding and cutting apparatus
Assignee: CA REED Inc A CORP OF
•
Filing: 1973-07-12
•
Granted: 1975-01-07
•
Expires: 1993-07-12
Abstract
Abstract Apparatus for forming accordion folds in a longitudinally traveling web of substantially uniform width and indefinite length including web cutting means disposed upstream or downstream of said folding apparatus.
Inventors
- 👤 John Deligt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:18
CPC Classifications
B; B65; B65H; B65H45/00; B65H45/02; B65H45/06; B65H45/10; B65H45/101; B26; B26D; B26D1/00; B26D1/01; B26D1/02; B26D1/025; B65H45/12; B65H45/20; B65H2701/00; B65H2701/10; B65H2701/18; B65H2701/182; B65H2701/1824; Y; Y10; Y10T; Y10T83/00; Y10T83/788; Y10T83/793; Y10T83/803; Y10T83/808; Y10T83/825; Y10T83/869; Y10T83/8748
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
339 words
An apparatus for cutting a web material having a substantially constant width and an indefinite length, said web material being accordion folded at transversely extending creases having sequentially opposite bight openings to divide said web longitudinally into panels of substantially uniform length, said apparatus comprising: first and second movable cutting edges secured to respective means for alternately translating said cutting edges in substantially the same plane on opposite sides of said web between a web disengagement position to a crease bight engagement position; first and second roller carriages secured to respective means for alternately translating said carriages from a web disengagement position to a crease bight engagement position; said first cutting edge and said first roller carriage simultaneously engaging said web on oposite sides thereof, said first cutting edge passing between a first adjacent pair of panels to engage said web in the bight opening therebetween; said second cutting edge and said second roller carriage simultaneously engaging said web on opposite sides thereof, said second cutting edge passing between a second adjacent pair of panels to engage said web in the bight opening therebetween; each of said roller carriages comprising a plurality of flat tread rollers having axes thereof secured to endless belt means; driving means for driving said endless belt means about a closed periphery lying in a plane substantially parallel to said respective cutting edges to cut said web when the tread of said rollers compresses said web against a respective cutting edge; and sequence control means to coordinate the alternate engagement of said first cutting edge and roller carriage with crease bights opening to a first direction and the engagement of said second cutting edge and roller carriage with crease bights opening to a second direction, said control means permitting a first time interim for web engagement between a cutting edge and respective roller carriage sufficient to sever said web and a sEcond time interim sufficient to permit the passage of a predetermined number of adjacent panels between said first and second adjacent pair of panels.
Claim 2
Independent Claim
339 words
An apparatus for cutting a web material having a substantially constant width and an indefinite length, said web material being accordion folded at transversely extending creases having sequentially opposite bight openings to divide said web longitudinally into panels of substantially uniform length, said apparatus comprising: first and second movable cutting edges secured to respective means for alternately translating said cutting edges in substantially the same plane on opposite sides of said web between a web disengagement position to a crease bight engagement position; first and second roller carriages secured to respective means for alternately translating said carriages from a web disengagement position to a crease bight engagement position; said first cutting edge and said first roller carriage simultaneously engaging said web on oposite sides thereof, said first cutting edge passing between a first adjacent pair of panels to engage said web in the bight opening therebetween; said second cutting edge and said second roller carriage simultaneously engaging said web on opposite sides thereof, said second cutting edge passing between a second adjacent pair of panels to engage said web in the bight opening therebetween; each of said roller carriages comprising a plurality of flat tread rollers having axes thereof secured to endless belt means; driving means for driving said endless belt means about a closed periphery lying in a plane substantially parallel to said respective cutting edges to cut said web when the tread of said rollers compresses said web against a respective cutting edge; and sequence control means to coordinate the alternate engagement of said first cutting edge and roller carriage with crease bights opening to a first direction and the engagement of said second cutting edge and roller carriage with crease bights opening to a second direction, said control means permitting a first time interim for web engagement between a cutting edge and respective roller carriage sufficient to sever said web and a sEcond time interim sufficient to permit the passage of a predetermined number of adjacent panels between said first and second adjacent pair of panels.
Claim 3
Dependent Claim
31 words
Apparatus as described by claim 1 wherein said flat tread rollers are spaced around the periphery of said endless belt means by a distance less than the width of said web.
Claim 4
Dependent Claim
28 words
Apparatus as described by claim 1 wherein said endless belt means is a link chain, the axes of said rollers being secured to respective links in said chain.
Claim 5
Dependent Claim
14 words
Apparatus as described by claim 1 wherein said flat tread rollers are regular cylinders.
Claim 6
Dependent Claim
17 words
Apparatus as described by claim 1 wherein said flat tread rollers are regular frustums of a cone.
References Cited (Backward Citations)
US2776610A
Cited
US2957379A
Cited
US3138985A
Cited
US3199392A
Cited
US3456540A
Cited
US3744360A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-01-06 | 1978-07-08 | 1979-01-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-01-06 | 1982-07-08 | 1983-01-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-01-06 | 1986-07-08 | 1987-01-07 | $7700.00 | Window Closed / Lapsed |