US3122791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curling machine for plastic binding elements
Assignee: General Binding Corp
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Filing: 1961-03-27
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Granted: 1964-03-03
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Expires: 1981-03-27
Abstract
No abstract record available.
Inventors
- 👤 Russell J Nadherny
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:28
CPC Classifications
B; B42; B42B; B42B5/00; B42B5/08; B42B5/10; B42B5/103; B29; B29C; B29C67/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
IN AN APPARATUS FOR CURLING PLASTIC BINDING ELEMENT BLANKS HAVING A BACKBONE AND PARALLEL SPACED FINGERS EXTENDING FORWARDLY THEREFROM INTO THE FORM OF RING-LIKE BINDING ELEMENTS, A FRAME HAVING A BASE, A PLATE SPACED ABOVE SAID BASE THE TOP SURFACE OF WHICH DEFINES A LINE OF TRAVEL OF PLASTIC BINDING ELEMENT BLANKS, SAID PLATE HAVING A DISCHARGE END, A STATIONARY MANDREL SPACED IN ADVANCE OF THE DISCHARGE END OF SAID PLATE IN GENERAL ALIGNMENT THEREWITH A SERIES OF CURLING ROLLS RADIALLY SPACED ABOUT SAID MANDREL EQUAL DISTANCES FROM THE CENTER THEREOF, SAID PLATE BEING TANGENTIAL TO THE PERIPHERY OF A LOWER ROLL OF SAID SERIES OF ROLLS AND EXTENDING CLOSELY ADJACENT TO SAID ROLL, BAFFLE MEANS SPACED ABOVE SAID PLATE AND EX-
Claim 2
Dependent Claim
122 words
IN AN APPARATUS FOR CURLING PLASTIC BINDING ELEMENT BLANKS HAVING A BACKBONE AND PARALLEL SPACED FINGERS EXTENDING FORWARDLY THEREFROM INTO THE FORM OF RING-LIKE BINDING ELEMENTS, A FRAME HAVING A BASE, A PLATE SPACED ABOVE SAID BASE THE TOP SURFACE OF WHICH DEFINES A LINE OF TRAVEL OF PLASTIC BINDING ELEMENT BLANKS, SAID PLATE HAVING A DISCHARGE END, A STATIONARY MANDREL SPACED IN ADVANCE OF THE DISCHARGE END OF SAID PLATE IN GENERAL ALIGNMENT THEREWITH A SERIES OF CURLING ROLLS RADIALLY SPACED ABOUT SAID MANDREL EQUAL DISTANCES FROM THE CENTER THEREOF, SAID PLATE BEING TANGENTIAL TO THE PERIPHERY OF A LOWER ROLL OF SAID SERIES OF ROLLS AND EXTENDING CLOSELY ADJACENT TO SAID ROLL, BAFFLE MEANS SPACED ABOVE SAID PLATE AND EX-
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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) | 1967-03-03 | 1967-09-02 | 1968-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-03-03 | 1971-09-02 | 1972-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-03-03 | 1975-09-02 | 1976-03-03 | $7700.00 | Window Closed / Lapsed |