US3274874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web perforating mechanism with resilient sleeve supported back-up roll
Assignee: International Business Machines Corp
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Filing: 1964-09-10
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Granted: 1966-09-27
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Expires: 1984-09-10
Abstract
No abstract record available.
Inventors
- 👤 Walter C Treiber
- 👤 Richard A Mcgill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:59
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/02; B26F1/06; B26F1/10; B26D; B26D1/00; B26D1/01; B26D1/12; B26D1/14; B26D1/24; B26D1/245; B26D7/00; B26D7/20; E; E04; E04B; E04B9/00; E04B9/06; E04B9/12; E04B9/14; E04B9/18; G; G06; G06K; G06K19/00; G06K19/02; G06K19/022; B26D2007/202; E04B2009/186; Y; Y10; Y10T; Y10T83/00; Y10T83/465; Y10T83/4766; Y10T83/4795; Y10T83/483; Y10T83/4844; Y10T83/929; Y10T83/9309; Y10T83/9312
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
114 words
IN A PERFORATING MECHANISM FOR A TRAVELING WEB OF SHEET MATERIAL, THE COMBINATION OF; A PAIR OF ROTATABLE FEED ROLL ASSEMBLIES BETWEEN WHICH THE WEB PASSES; ONE OF SAID FEED ROLL ASSEMBLIES BEING PROVIDED WITH RADIALLY DISPOSED PERFORATING TOOLS AND BEARER ROLLS LOCATED NEAR SAID TOOLS; AND THE OTHER OF SAID FEED ROLL ASSEMBLIES BEING PROVIDED WITH BACK-UP ROLLS EACH OF WHICH HAS AN ELASTIC SLEEVE FOR RESILIENTLY SUPPORTING SAME, SAID SLEEVES BEING COMPRESSIVELY POSITIONED WITH RESPECT TO THE AXES THEREOF AND COACTING WITH SAID BEARER ROLLS FOR ACCURATELY POSITIONING SAID BEARER ROLLS AND TOOLS WITH RESPECT TO SAID BACK-UP ROLLS REGARDLESS OF CHANGE IN DISTANCE BETWEEN THE AXES OF SAID FEED ROLL ASSEMBLIES.
Claim 2
Dependent Claim
114 words
IN A PERFORATING MECHANISM FOR A TRAVELING WEB OF SHEET MATERIAL, THE COMBINATION OF; A PAIR OF ROTATABLE FEED ROLL ASSEMBLIES BETWEEN WHICH THE WEB PASSES; ONE OF SAID FEED ROLL ASSEMBLIES BEING PROVIDED WITH RADIALLY DISPOSED PERFORATING TOOLS AND BEARER ROLLS LOCATED NEAR SAID TOOLS; AND THE OTHER OF SAID FEED ROLL ASSEMBLIES BEING PROVIDED WITH BACK-UP ROLLS EACH OF WHICH HAS AN ELASTIC SLEEVE FOR RESILIENTLY SUPPORTING SAME, SAID SLEEVES BEING COMPRESSIVELY POSITIONED WITH RESPECT TO THE AXES THEREOF AND COACTING WITH SAID BEARER ROLLS FOR ACCURATELY POSITIONING SAID BEARER ROLLS AND TOOLS WITH RESPECT TO SAID BACK-UP ROLLS REGARDLESS OF CHANGE IN DISTANCE BETWEEN THE AXES OF SAID FEED ROLL ASSEMBLIES.
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |