US3149595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thread chain severing means for book sewing machines
Assignee: Rand McNally and Co
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Filing: 1961-12-27
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Granted: 1964-09-22
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Expires: 1981-12-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter R Zeltner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:58
CPC Classifications
B; B42; B42B; B42B2/00; B42B2/02; B42B2/08; D; D05; D05B; D05B65/00; D05D; D05D2207/00; D05D2207/02; Y; Y10; Y10T; Y10T83/00; Y10T83/525; Y10T83/541; Y10T83/543; Y10T83/768; Y10T83/7809; Y10T83/7847
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
185 words
IN A BOOK STITCHING APPARATUS HAVING MEANS FOR INTERMITTENTLY ADVANCING A PLURALITY OF UNIFORMLY SPACED BOOKS ALONG A PRESELECTED PATH AND STITCHING MEANS ADJACENT SAID PATH ARRANGED TO STITCH THE BOOKS SERIATIM WITH A CONTINUOUS THREAD WHEREBY A PORTION OF THE THREAD EXTENDS BETWEEN SUCCESSIVE BOOKS, A CUTTING MECHANISM ADJACENT SAID PATH ARRANGED TO CUT THE THREAD TO REMOVE SAID PORTION THEREOF, COMPRISING: A PAIR OF COAXIALLY SPACED WHEELS EACH HAVING A CUTTING EDGE; MEANS ROTATING SAID WHEELS; MEANS RECIPROCATING SAID WHEELS PERPENDICULARLY TO THEIR AXIS OF ROTATION BETWEEN A FIRST POSITION SPACED FROM SAID PATH DURING ADVANCE OF THE BOOKS AND A SECOND POSITION WHEREIN SAID SHARP EDGE OF ONE WHEEL CUTS SAID THREAD AT THE TRAILING PORTION OF ONE BOOK AND THE SHARP EDGE OF THE OTHER WHEEL CUTS SAID THREAD AT THE LEADING PORTION OF THE SUCCEEDIN BOOK DURING NON-ADVANCE OF THE BOOKS; AND STOPS FIXED ACCURATELY A PRESELECTED DISTANCE FROM SAID AXIS TO ENGAGE THE BOOKS ADJACENT SAID WHEEL EDGES AND LIMIT THE MOVEMENT OF THE WHEELS TOWARD THE BOOKS, THEREBY TO ASSURE THAT SAID EDGES CUT SUBSTANTIALLY ONLY THE THREAD.
Claim 2
Dependent Claim
185 words
IN A BOOK STITCHING APPARATUS HAVING MEANS FOR INTERMITTENTLY ADVANCING A PLURALITY OF UNIFORMLY SPACED BOOKS ALONG A PRESELECTED PATH AND STITCHING MEANS ADJACENT SAID PATH ARRANGED TO STITCH THE BOOKS SERIATIM WITH A CONTINUOUS THREAD WHEREBY A PORTION OF THE THREAD EXTENDS BETWEEN SUCCESSIVE BOOKS, A CUTTING MECHANISM ADJACENT SAID PATH ARRANGED TO CUT THE THREAD TO REMOVE SAID PORTION THEREOF, COMPRISING: A PAIR OF COAXIALLY SPACED WHEELS EACH HAVING A CUTTING EDGE; MEANS ROTATING SAID WHEELS; MEANS RECIPROCATING SAID WHEELS PERPENDICULARLY TO THEIR AXIS OF ROTATION BETWEEN A FIRST POSITION SPACED FROM SAID PATH DURING ADVANCE OF THE BOOKS AND A SECOND POSITION WHEREIN SAID SHARP EDGE OF ONE WHEEL CUTS SAID THREAD AT THE TRAILING PORTION OF ONE BOOK AND THE SHARP EDGE OF THE OTHER WHEEL CUTS SAID THREAD AT THE LEADING PORTION OF THE SUCCEEDIN BOOK DURING NON-ADVANCE OF THE BOOKS; AND STOPS FIXED ACCURATELY A PRESELECTED DISTANCE FROM SAID AXIS TO ENGAGE THE BOOKS ADJACENT SAID WHEEL EDGES AND LIMIT THE MOVEMENT OF THE WHEELS TOWARD THE BOOKS, THEREBY TO ASSURE THAT SAID EDGES CUT SUBSTANTIALLY ONLY THE THREAD.
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) | 1967-09-22 | 1968-03-23 | 1968-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-22 | 1972-03-23 | 1972-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-22 | 1976-03-23 | 1976-09-22 | $7700.00 | Window Closed / Lapsed |