Patent US3669375A successfully refreshed from Google Patents.
US3669375A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web or strip material handling apparatus
Assignee: Eastman Kodak Co
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Filing: 1970-03-12
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Granted: 1972-06-13
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Expires: 1990-03-12
Abstract
Abstract Web material is processed through a magazine mechanism which stores a quantity of such web material, thereby to permit successive rolls of the web material to be spliced together without stopping the processing. The magazine comprises two relatively movable sections which come together gradually as web material is given up from the magazine during the splicing operation; and gradually part, after splicing is effected, thereby to refill the magazine. Means is disclosed for assuring that the movement of the relatively movable magazine parts do not cause undulation or the like within the web material.
Inventors
- 👤 John M Bruton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:21
CPC Classifications
D; D06; D06B; D06B3/00; D06B3/10; D06B3/12; D06B17/00; D06B17/06; B; B65; B65H; B65H20/00; B65H20/30; B65H20/32; B65H20/34; B65H23/00; B65H23/04; B65H23/18; B65H23/182; B65H23/1825; B65H2408/00; B65H2408/20; B65H2408/21; B65H2408/217; B65H2513/00; B65H2513/10; D06B3/34; D06B3/345; D06B3/36
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
114 words
Web material handling apparatus comprising rotatable means for supporting a roll of the material, guide means arranged to guide the material with respect to the roll and to provide a serpentine guide path for the material variable in length between a maximum and a minimum for maintaining a correspondingly variable store of the material therein, said guide means comprising relatively movable arrays of rollers, means responsive to the rate of variation of the length of the guide path for producing a signal representative of said rate, and means responsive to signals from the rate responsive means for controlling rotation of the rotatable means, whereby the relative movement of said arrays of rollers is controlled.
Claim 2
Dependent Claim
114 words
Web material handling apparatus comprising rotatable means for supporting a roll of the material, guide means arranged to guide the material with respect to the roll and to provide a serpentine guide path for the material variable in length between a maximum and a minimum for maintaining a correspondingly variable store of the material therein, said guide means comprising relatively movable arrays of rollers, means responsive to the rate of variation of the length of the guide path for producing a signal representative of said rate, and means responsive to signals from the rate responsive means for controlling rotation of the rotatable means, whereby the relative movement of said arrays of rollers is controlled.
Claim 3
Dependent Claim
28 words
Apparatus according to claim 1 wherein the rotatable means is freely rotatable, and wherein the means for controlling rotation of the rotatable means is a signal responsive brake.
Claim 4
Dependent Claim
26 words
Apparatus according to claim 1 including means responsive to the relative position of the said arrays of rollers for over-riding signals from said rate responsive means.
Claim 5
Dependent Claim
30 words
Apparatus according to claim 3, wherein the rate responsive means is a tacho-generator, and wherein the tachogenerator is adapted to be driven by relative movement of the arrays of rollers.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |