Method for splicing webs
Abstract
Abstract A method and apparatus for removing an imperfect portion of a web to form trailing and leading web portions, and splicing the web portions to form a continuous perfect web. The apparatus comprises a pair of fixed, spaced apart knife blades adjacent separate perfect and imperfect web paths, and a moveable knife blade cooperating with the fixed knife blades in succession for severing the web at opposite ends of the imperfect portion to form a trailing web end portion lying in the perfect web path and a leading web end portion lying in the imperfect web path. A web guiding member is coupled to the movable blade for selectively guiding the web along the perfect and imperfect web paths. When the movable blade is returned to its normal position, the web guiding member moves the leading web end portion to the perfect film path in position to be spliced to the trailing web end portion.
Inventors
- 👤 M Kron
Bibliographic Details
Claims Analysis
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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) | 1977-03-25 | 1977-09-24 | 1978-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-25 | 1981-09-24 | 1982-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-25 | 1985-09-24 | 1986-03-26 | $7700.00 | Window Closed / Lapsed |