US3650168A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Operating upon strips of thin material
Assignee: Individual
•
Filing: 1970-09-08
•
Granted: 1972-03-21
•
Expires: 1990-09-08
Abstract
Abstract A rotary slitter, for slitting a strip of thin material into narrower ribbons and establishing the speed of travel of those ribbons, is provided with output-disengaging means of dynamic nature, moved by and with the elements of the slitter, enabling the minimization of tension on the exiting ribbons. A pair of ribbon-engaging rollers, driven at a peripheral speed slightly greater than the speed of travel of the ribbons, receives the ribbons from the slitter in side-by-side relationship and under slight tension. From the rollers the ribbons may optionally pass to an anvil member with which a cutter cooperates to cut the ribbons into discrete small pieces.
Inventors
- 👤 Henry F Ruschmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 17:50
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/18; B23; B23D; B23D19/00; B23D19/04; B23D19/06; B23P; B23P17/00; B23P17/04; B23P17/06; B26D1/00; B26D1/01; B26D1/12; B26D1/25; B26D1/34; B26D1/38; Y; Y10; Y10S; Y10S83/00; Y10S83/906; Y10T; Y10T83/00; Y10T83/202; Y10T83/2092; Y10T83/2096; Y10T83/21; Y10T83/2103; Y10T83/2196; Y10T83/647; Y10T83/6476; Y10T83/6489; Y10T83/6491
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
181 words
A machine for continuous operation upon a strip of foil comprising, in combination, (1) slitter means, having two rotary elements whose axes are parallel and each of which comprises a respective series of spaced discs centered on its axis and interfitting in slightly overlapping relationship between the discs of the other element, for slitting the strip into and establishing the speed of travel of a plurality of narrow foil ribbons of which, as they pass the plane containing said axes, alternate ones are disposed between discs of one element and the intervening ones are disposed between discs of the other element; (2) dynamic ribbon-disengaging means, comprising members carried by and moved with said elements, initially effective on each of said foil ribbons substantially at said axes-containing plane; and (3) means, including a ribbon-contacting roller assembly downstream from the slitter means and means for imparting thereto rotation at a peripheral speed at least slightly greater than said speed of ribbon travel, for collecting both said alternate and said intervening foil ribbons from the slitter means in sideby-side relationship and under light tension.
Claim 2
Dependent Claim
181 words
A machine for continuous operation upon a strip of foil comprising, in combination, (1) slitter means, having two rotary elements whose axes are parallel and each of which comprises a respective series of spaced discs centered on its axis and interfitting in slightly overlapping relationship between the discs of the other element, for slitting the strip into and establishing the speed of travel of a plurality of narrow foil ribbons of which, as they pass the plane containing said axes, alternate ones are disposed between discs of one element and the intervening ones are disposed between discs of the other element; (2) dynamic ribbon-disengaging means, comprising members carried by and moved with said elements, initially effective on each of said foil ribbons substantially at said axes-containing plane; and (3) means, including a ribbon-contacting roller assembly downstream from the slitter means and means for imparting thereto rotation at a peripheral speed at least slightly greater than said speed of ribbon travel, for collecting both said alternate and said intervening foil ribbons from the slitter means in sideby-side relationship and under light tension.
Claim 3
Dependent Claim
57 words
The subject matter claims in claim 1 wherein said collecting means further iNcludes, upstream from said roller assembly, a surface onto which there pass, in two respective planes only slightly inclined relative to each other, the ribbons from between the discs of one of said elements and the ribbons from between the discs of the other element.
Claim 4
Dependent Claim
45 words
The combination, with the subject matter claimed in claim 1, of an anvil member downstream from and onto which said ribbons pass in side-by-side relationship from said roller assembly, and a cutter cooperating with said anvil member to cut said ribbons into discrete small pieces.
Claim 5
Dependent Claim
49 words
The subject matter claimed in claim 3 wherein said ribbons pass without longitudinal tension from said roller assembly to the line of interaction between said cutter and said anvil member, further including means between said roller assembly and said line for maintaining direct the path of said ribbons therebetween.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-03-21 | 1975-09-20 | 1976-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-21 | 1979-09-20 | 1980-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-21 | 1983-09-20 | 1984-03-21 | $7700.00 | Window Closed / Lapsed |