US3580451A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp block chain for holding one edge of a web of material
Assignee: Brückner - Maschinenbau Gernot Brückner GmbH & Co KG
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Filing: 1969-09-18
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Granted: 1971-05-25
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Expires: 1989-09-18
Abstract
Abstract A clamp block chain comprises a series of clamp blocks, interconnected to form a chain, for holding one edge of a web of material. A series of upper rollers and a series of lower rollers are mounted on the chain to rotate on vertical axes. The upper rollers run between an upper pair of vertical guides, and the lower rollers run between a lower pair of vertical guides. A series of supporting rollers, mounted on the chain, rotate on horizontal axes, and there is a horizontal rail on which the supporting rollers run.
Inventors
- 👤 Raimund Fraitzl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:08
CPC Classifications
B; B65; B65G; B65G17/00; B65G17/30; B65G17/32; B65G17/323; B65G17/12; B65G2201/00; B65G2201/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
93 words
A clamp block chain comprising a series of clamp blocks, interconnected to form a chain, for holding one edge of a web of material, a series of upper rollers and a series of lower rollers, all mounted on the chain to rotate on vertical axes, an upper pair of vertical guides between which the upper rollers run, a lower pair of vertical guides between which the lower rollers run, a series of supporting rollers mounted on the chain to rotate on horizontal axes, and a horizontal rail on which the supporting rollers run.
Claim 2
Dependent Claim
93 words
A clamp block chain comprising a series of clamp blocks, interconnected to form a chain, for holding one edge of a web of material, a series of upper rollers and a series of lower rollers, all mounted on the chain to rotate on vertical axes, an upper pair of vertical guides between which the upper rollers run, a lower pair of vertical guides between which the lower rollers run, a series of supporting rollers mounted on the chain to rotate on horizontal axes, and a horizontal rail on which the supporting rollers run.
Claim 3
Dependent Claim
60 words
A clamp block chain according to claim 1, comprising a series of vertical shafts which are carried by the chain, and each of which carries one of the upper rollers, one of the lower rollers, and a pair of auxiliary rollers for engaging wheels for driving the chain, the auxiliary rollers being rotatable relative to the upper and lower rollers.
Claim 4
Dependent Claim
33 words
A clamp block chain according to claim 2, wherein one of the auxiliary rollers is located adjacent to each of the upper and lower rollers, between such roller and an adjacent clamp block.
Claim 5
Dependent Claim
27 words
A clamp block chain according to claim 1, wherein each of the supporting rollers is rotatably mounted on a bracket carried by one of the clamp blocks.
References Cited (Backward Citations)
US3323703A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-05-24 | 1974-11-23 | 1975-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-24 | 1978-11-23 | 1979-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-24 | 1982-11-23 | 1983-05-25 | $7700.00 | Window Closed / Lapsed |