Patent US3147168A successfully refreshed from Google Patents.
US3147168A
Expired / Lapsed
US
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Bag making machine and method
Assignee: Delamere and Williams Co Ltd
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Filing: 1961-03-06
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Granted: 1964-09-01
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Expires: 1981-03-06
Abstract
No abstract record available.
Inventors
- 👤 Lawrence G Bateman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:18
CPC Classifications
B; B31; B31B; B31B70/00; B31B70/60; B31B70/64; B31B70/642; B31B2155/00; B31B2160/00; B31B2160/10; B31B70/14; B31B70/144; B31B70/649
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
A METHOD OF MAINTAINING REGISTRATION OF SUCCESSIVE CONTINUOUSLY MOVING SEALING ELEMENTS WITH THE SPACES BETWEEN SUCCESSIVE NOMINALLY SPACED PRINTED AREAS ON A STRIP OF BAG FORMING MATERIAL WITHIN COMMERICAL TOLERANCES OF SAID NOMINAL SPACING WHICH COMPRISES: CONTINUOUSLY MOVING SAID STRIP OF PRINTED MATERIAL ALONG A FIXED PATH; CONTINUOUSLY MOVING SAID SEALING ELEMENTS ALONG SAID PATH OPPOSITE THE SPACES BETWEEN SAID PRINTED AREAS; ALTERNATELY INCREASING AND DECREASING THE SPACING BETWEEN THE CONTINUOUSLY MOVING SEALING ELEMENTS, ALONG SAID PATH, TO VALUES MORE THAN AND LESS THAN THE NOMINAL SPACING, RESPECTIVELY; DETECTING THE RELATIVE POSITIONS OF SAID PRINTED AREAS AND SAID SEALING ELEMENTS; AND CONTROLLING THE TIME AT WHICH A CHANGE IN SPACING OF SAID ELEMENTS IS EFFECTED IN RESPONSE TO DETECTION OF SAID RELATIVE SPACING AT A VALUE AT THE LIMIT OF SAID COMMERCIAL TOLERANCES.
Claim 2
Independent Claim
133 words
A METHOD OF MAINTAINING REGISTRATION OF SUCCESSIVE CONTINUOUSLY MOVING SEALING ELEMENTS WITH THE SPACES BETWEEN SUCCESSIVE NOMINALLY SPACED PRINTED AREAS ON A STRIP OF BAG FORMING MATERIAL WITHIN COMMERICAL TOLERANCES OF SAID NOMINAL SPACING WHICH COMPRISES: CONTINUOUSLY MOVING SAID STRIP OF PRINTED MATERIAL ALONG A FIXED PATH; CONTINUOUSLY MOVING SAID SEALING ELEMENTS ALONG SAID PATH OPPOSITE THE SPACES BETWEEN SAID PRINTED AREAS; ALTERNATELY INCREASING AND DECREASING THE SPACING BETWEEN THE CONTINUOUSLY MOVING SEALING ELEMENTS, ALONG SAID PATH, TO VALUES MORE THAN AND LESS THAN THE NOMINAL SPACING, RESPECTIVELY; DETECTING THE RELATIVE POSITIONS OF SAID PRINTED AREAS AND SAID SEALING ELEMENTS; AND CONTROLLING THE TIME AT WHICH A CHANGE IN SPACING OF SAID ELEMENTS IS EFFECTED IN RESPONSE TO DETECTION OF SAID RELATIVE SPACING AT A VALUE AT THE LIMIT OF SAID COMMERCIAL TOLERANCES.
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) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |