Patent US3566781A successfully refreshed from Google Patents.
US3566781A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for the pressure processing of a continuous particularly textile web
Assignee: TEXTILMASCHINENBAU ZITTAU VEB
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Filing: 1968-08-12
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Granted: 1971-03-02
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Expires: 1988-08-12
Abstract
Abstract An apparatus for uniformly pressure treating a running web, such as an apparatus for squeezing a textile web, with two outer rollers rotating in the same direction, and a central roller arranged between and slightly ahead of the outer rollers to define with one of them a working gap, in which the central roller, for purposes of closing the gap is movable towards the gap, one of the outer rollers being driven by a differential transmission which includes a main drive member and an auxiliary drive member for this outer roller, while the outer roller drives the auxiliary drive member.
Inventors
- 👤 Friedrich Kunze
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:29
CPC Classifications
D; D06; D06B; D06B15/00; D06B15/02
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
147 words
An apparatus for pressure treating a running web, especially textile web, comprising two outer rollers arranged substantially parallel to each other and rotatable in the same direction, a central roller located between said two outer rollers and defining together with one of said outer rollers a working gap for receiving a web therein, the space formed between said two outer rollers being smaller than the diameter of said central roller, said central roller being arranged in front of said space when looking in the direction of movement of a web through said apparatus and being movable toward and away from said space, and differential transmission means drivingly connected to one of said outer rollers, said transmission means including a main drive member and an auxiliary drive member both operatively connected to said one outer roller, said auxiliary drive member being drivingly connected to the other outer roller.
Claim 2
Independent Claim
147 words
An apparatus for pressure treating a running web, especially textile web, comprising two outer rollers arranged substantially parallel to each other and rotatable in the same direction, a central roller located between said two outer rollers and defining together with one of said outer rollers a working gap for receiving a web therein, the space formed between said two outer rollers being smaller than the diameter of said central roller, said central roller being arranged in front of said space when looking in the direction of movement of a web through said apparatus and being movable toward and away from said space, and differential transmission means drivingly connected to one of said outer rollers, said transmission means including a main drive member and an auxiliary drive member both operatively connected to said one outer roller, said auxiliary drive member being drivingly connected to the other outer roller.
Claim 3
Dependent Claim
23 words
An apparatus according to claim 1, which comprises an additional transmission means and clutch means for rigidly drivingly interconnecting said two outer rollers.
Claim 4
Dependent Claim
33 words
An apparatus according to claim 1, which comprises means operatively connected to said central roller for adjusting the force exerted by said outer rollers on said central roller for closing said working gap.
Claim 5
Dependent Claim
22 words
An apparatus according to claim 1, which includes control transmission means interconnecting one of said outer rollers and said auxiliary drive member.
Claim 6
Dependent Claim
18 words
An apparatus according to claim 1, wherein said central roller is provided with circumferential layer of elastic material.
References Cited (Backward Citations)
US1938444A
Cited
US3331734A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |