US3338575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Web lapping apparatus
Assignee: Paper Converting Machine Co
•
Filing: 1965-03-10
•
Granted: 1967-08-29
•
Expires: 1985-03-10
Abstract
No abstract record available.
Inventors
- 👤 Nystrand Ernst Daniel
- 👤 Harvey J Spencer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 15:12
CPC Classifications
B; B65; B65H; B65H45/00; B65H45/12; B65H45/24; B65H29/00; B65H29/24; B65H29/241; B65H29/243; B65H29/66; B65H29/6609; B65H29/6618; B65H35/00; B65H35/04; B65H35/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
APPARATUS FOR WEB LAPPING, COMPRISING A FRAME, A CUTTING ROLL ROTATABLY MOUNTED ON SAID FRAME, SAID CUTTING ROLL BEING EQUIPPED WITH LONGITUDINALLY-EXTENDING VACUUM PORT MEANS IN THE SURFACE THEREOF FOR ADVANCING A WEB WITH SAID CUTTING ROLL IN PARTIAL WRAPPING ENGAGEMENT THEREWITH, KNIFE MEANS ON SAID FRAME OPERABLY ASSOCIATED WITH SAID CUTTING ROLL FOR TRANSVERSELY SEVERING SAID WEB ALONG LONGITUDINALLY SPACED-APART LINES TO PROVIDE A SUCCESSION OF DISCRETE SHEETS, A RETARD ROLL ROTATABLY MOUNTED ON SAID FRAME IN PARALLLEL, SIDE-BY-SIDE RELATION TO SAID CUTTING ROLL, SAID RETARD ROLL BEING EQUIPPED WITH LONGITUDINALLY-EXTENDING VACUUM PORT MEANS IN THE SURFACE THEREOF FOR TRANSFERRING SAID WEB SHEETS FROM SAID CUTTING ROLL, AND VACUUM MEANS INTERPOSED ADJACENT THE PATH OF A SHEET BEING TRANSFERRED FROM SAID CUTTING ROLL TO SAID RETARD ROLL FOR DISPLACING THE TRAILING PORTION OF SAID SHEET, AND MEANS FOR ROTATING SAID RETARD ROLL AT A SURFACE SPEED SLOWER THAN THE SURFACE SPEED OF SAID CUTTING ROLL.
Claim 2
Dependent Claim
156 words
APPARATUS FOR WEB LAPPING, COMPRISING A FRAME, A CUTTING ROLL ROTATABLY MOUNTED ON SAID FRAME, SAID CUTTING ROLL BEING EQUIPPED WITH LONGITUDINALLY-EXTENDING VACUUM PORT MEANS IN THE SURFACE THEREOF FOR ADVANCING A WEB WITH SAID CUTTING ROLL IN PARTIAL WRAPPING ENGAGEMENT THEREWITH, KNIFE MEANS ON SAID FRAME OPERABLY ASSOCIATED WITH SAID CUTTING ROLL FOR TRANSVERSELY SEVERING SAID WEB ALONG LONGITUDINALLY SPACED-APART LINES TO PROVIDE A SUCCESSION OF DISCRETE SHEETS, A RETARD ROLL ROTATABLY MOUNTED ON SAID FRAME IN PARALLLEL, SIDE-BY-SIDE RELATION TO SAID CUTTING ROLL, SAID RETARD ROLL BEING EQUIPPED WITH LONGITUDINALLY-EXTENDING VACUUM PORT MEANS IN THE SURFACE THEREOF FOR TRANSFERRING SAID WEB SHEETS FROM SAID CUTTING ROLL, AND VACUUM MEANS INTERPOSED ADJACENT THE PATH OF A SHEET BEING TRANSFERRED FROM SAID CUTTING ROLL TO SAID RETARD ROLL FOR DISPLACING THE TRAILING PORTION OF SAID SHEET, AND MEANS FOR ROTATING SAID RETARD ROLL AT A SURFACE SPEED SLOWER THAN THE SURFACE SPEED OF SAID CUTTING ROLL.
References Cited (Backward Citations)
US1290801A
Cited
US2092952A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-28 | 1971-02-27 | 1971-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-28 | 1975-02-27 | 1975-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-28 | 1979-02-27 | 1979-08-29 | $7700.00 | Window Closed / Lapsed |