Patent US3630426A successfully refreshed from Google Patents.
US3630426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Train of feed rolls for paper, plastics or textile webs
Assignee: Windmoeller and Hoelscher KG
•
Filing: 1969-12-25
•
Granted: 1971-12-28
•
Expires: 1989-12-25
Abstract
Abstract A train of feed rolls for webs of material comprises a run-on roll, a runoff roll and an intermediate roll about all of which the web can be slung, and an adjustable pressure roll adapted to be selectively applied to the web to pass the latter against the periphery of the run-on roll or runoff roll or both said rolls simultaneously.
Inventors
- 👤 Herbert Rieger
- 👤 Friedrich Franz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 06:53
CPC Classifications
B; B65; B65H; B65H20/00; B65H20/24; B65H20/02; B65H23/00; B65H23/04; B65H23/18; B65H23/1806; B65H2301/00; B65H2301/30; B65H2301/31; B65H2301/311; B65H2301/31122
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
63 words
A train of feed rolls for webs of material, comprising a runon roll, a runoff roll and an intermediate roll about all of which the web can be slung, an adjustable pressure roll and means for varying the position of said pressure roll so as to selectively press against the periphery of the run-on roll, the runoff roll, or both said rolls simultaneously.
Claim 2
Dependent Claim
63 words
A train of feed rolls for webs of material, comprising a runon roll, a runoff roll and an intermediate roll about all of which the web can be slung, an adjustable pressure roll and means for varying the position of said pressure roll so as to selectively press against the periphery of the run-on roll, the runoff roll, or both said rolls simultaneously.
Claim 3
Dependent Claim
19 words
A feed roll train according to claim 1, including means for varying the application pressure of said pressure roll.
Claim 4
Dependent Claim
62 words
A feed roll train according to claim 1, wherein the pressure roll is carried by pivotable levers, the run-on and runoff rolls are mounted with their axes of rotation lying substantially in a common plane, the levers extending in a direction that is substantially parallel to said common plane and a pivotal shaft of the levers is adjustable in the said direction.
Claim 5
Dependent Claim
33 words
A feed roll train according to claim 3, wherein the said pivotal shaft of the levers is mounted for eccentric rotation in a machine frame and can be locked in its adjusted position.
Claim 6
Dependent Claim
22 words
A feed roll train according to claim 3, including a screw engaging the levers for pressing the pressure roll against the web.
Claim 7
Dependent Claim
18 words
A feed roll train according to claim 5, including a compression spring between the screw and the levers.
Claim 8
Dependent Claim
19 words
A feed roll train according to claim 5, wherein the pressure roll has a peripheral covering of elastic material.
Claim 9
Dependent Claim
12 words
A web-processing machine incorporating a feed roll train according to claim 1.
Claim 10
Dependent Claim
31 words
A printing machine for a web of material, comprising a printing station and a feed roll train according to claim 1 located upstream as well as downstream of the printing station.
Claim 11
Dependent Claim
22 words
A printing machine according to claim 9, wherein the feed roll train downstream of the printing station is driven through control gearing.
References Cited (Backward Citations)
US2776677A
Cited
FR1440240A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-27 | 1975-06-28 | 1975-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-27 | 1979-06-28 | 1979-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-27 | 1983-06-28 | 1983-12-28 | $7700.00 | Window Closed / Lapsed |