US3167641A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for perforating sheet material
Assignee: P Lorillard Co
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Filing: 1962-12-12
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Granted: 1965-01-26
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Expires: 1982-12-12
Abstract
No abstract record available.
Inventors
- 👤 Harris B Parmele
- 👤 Block M Sabel
- 👤 Berner John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:16
CPC Classifications
B; B26; B26F; B26F1/00; B26F1/02; B26F1/06; B26F1/10; A; A24; A24C; A24C5/00; A24C5/005; A24C5/007; B26F1/26; B26F1/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
143 words
IN APPARATUS FOR PERFORATING SHEET MATERIAL, THE COMBINATION OF A PAIR OF WHEELS EACH HAVING ELECTRICAL CONDUCTING RIMS AND MOUNTED FOR ROTATION IN SUBSTANTIAL PERIPHERAL CONTACT, DRIVING MEANS FOR ROTATING AT LEAST ONE OF SAID WHEELS, MEANS FOR FEEDING SHEET MATERIAL BETWEEN SAID WHEELS IN THE DIRECTION OF ROTATION THEREOF, ELECTRICAL SOURCE MEANS FOR CREATING AN ELECTRICAL TENSION ACROSS SAID WHEEL RIMS FOR DRAWING A SPARK BETWEEN THEM, AND INTERMITTENT MAKE-AND-BREAK CONTROL MEANS INTERPOSED BETWEEN SAID SOURCE MEANS AND SAID WHEEL RIMS, A CONDUCTING BRUSH ENGAGING THE RIM OF EACH OF SAID WHEELS AND INTERPOSED BETWEEN SAID CONTROL MEANS AND THE CORRESPONDING WHEEL RIM FOR CONDUCTING THE ELECTRICAL SPARKING IMPULSES THERETO AND SIMULTANEOUSLY CLEANING THE SAME, WHEREBY SAID SHEET MATERIAL IS PERFORATED BY THE SPARK DRAWN ACROSS SAID WHEEL RIMS AS THE MATERIAL MOVES THROUGH THE GAP CREATED THEREBY BETWEEN SAID WHEEL RIMS.
Claim 2
Dependent Claim
143 words
IN APPARATUS FOR PERFORATING SHEET MATERIAL, THE COMBINATION OF A PAIR OF WHEELS EACH HAVING ELECTRICAL CONDUCTING RIMS AND MOUNTED FOR ROTATION IN SUBSTANTIAL PERIPHERAL CONTACT, DRIVING MEANS FOR ROTATING AT LEAST ONE OF SAID WHEELS, MEANS FOR FEEDING SHEET MATERIAL BETWEEN SAID WHEELS IN THE DIRECTION OF ROTATION THEREOF, ELECTRICAL SOURCE MEANS FOR CREATING AN ELECTRICAL TENSION ACROSS SAID WHEEL RIMS FOR DRAWING A SPARK BETWEEN THEM, AND INTERMITTENT MAKE-AND-BREAK CONTROL MEANS INTERPOSED BETWEEN SAID SOURCE MEANS AND SAID WHEEL RIMS, A CONDUCTING BRUSH ENGAGING THE RIM OF EACH OF SAID WHEELS AND INTERPOSED BETWEEN SAID CONTROL MEANS AND THE CORRESPONDING WHEEL RIM FOR CONDUCTING THE ELECTRICAL SPARKING IMPULSES THERETO AND SIMULTANEOUSLY CLEANING THE SAME, WHEREBY SAID SHEET MATERIAL IS PERFORATED BY THE SPARK DRAWN ACROSS SAID WHEEL RIMS AS THE MATERIAL MOVES THROUGH THE GAP CREATED THEREBY BETWEEN SAID WHEEL RIMS.
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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) | 1968-01-26 | 1968-07-27 | 1969-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-26 | 1972-07-27 | 1973-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-26 | 1976-07-27 | 1977-01-26 | $7700.00 | Window Closed / Lapsed |