US3119296A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cut-off device having a saw portion and a progressive shear portion
Assignee: Millennium Petrochemicals Inc
•
Filing: 1960-12-05
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Granted: 1964-01-28
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Expires: 1980-12-05
Abstract
No abstract record available.
Inventors
- 👤 Hugh M Foster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:33
CPC Classifications
B; B23; B23D; B23D21/00; Y; Y10; Y10T; Y10T83/00; Y10T83/04; Y10T83/0596; Y10T83/869; Y10T83/8821; Y10T83/8828; Y10T83/8831; Y10T83/8834; Y10T83/8854; Y10T83/929; Y10T83/9411; Y10T83/9447
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
A COMBINED SAW AND SHEARING BLADE FOR SEVERING A STRIP OF SHEET METAL HAVING A RELATIVELY FLAT CENTER PORTION AND A ROLLED BEAD ALONG AT LEAST ONE LONGITUDINAL EDGE THEREOF, SAID DEVICE COMPRISING A FRAME, A PAIR OF SPACED APART MEMBERS MOUNTED SIDE BY SIDE ON SAID FRAME ADJACENT ONE END THEREOF, SAID MEMBERS HAVING ALIGNED SLOTS PROVIDED THEREIN WHICH ARE SHAPED TO RECEIVE SAID STRIP AND SURROUND THE LATTER IN CLOSE-FITTING RELATIONSHIP, A BLADE HOLDER MOUNTED ON SAID FRAME FOR RECIPROCATING MOTION ALONG A LINE OF TRAVEL GENERALLY PERPENDICULAR TO SAID RELATIVELY FLAT CENTER PORTION OF SAID STRIP, A TOOTHED SAW BLADE MOUNTED ON SAID HOLDER AND DISPOSED TO PASS BETWEEN SAID MEMBERS ON THE DOWNSTROKE OF SAID BLADE HOLDER TO CUT A KERF TRANSVERSELY ACROSS SAID ROLLED EDGE BEAD FROM THE OUTER SIDE THEREOF, THE TEETH OF SAID BLADE BEING DISPOSED AT A RELATIVELY SMALL ACUTE ANGLE WITH RESPECT TO THE LINE OF TRAVEL OF SAID BLADE HOLDER AT AN ANGLE SUCH THAT UPON COMPLETION OF SAID DOWNSTROKE,
Claim 2
Dependent Claim
170 words
A COMBINED SAW AND SHEARING BLADE FOR SEVERING A STRIP OF SHEET METAL HAVING A RELATIVELY FLAT CENTER PORTION AND A ROLLED BEAD ALONG AT LEAST ONE LONGITUDINAL EDGE THEREOF, SAID DEVICE COMPRISING A FRAME, A PAIR OF SPACED APART MEMBERS MOUNTED SIDE BY SIDE ON SAID FRAME ADJACENT ONE END THEREOF, SAID MEMBERS HAVING ALIGNED SLOTS PROVIDED THEREIN WHICH ARE SHAPED TO RECEIVE SAID STRIP AND SURROUND THE LATTER IN CLOSE-FITTING RELATIONSHIP, A BLADE HOLDER MOUNTED ON SAID FRAME FOR RECIPROCATING MOTION ALONG A LINE OF TRAVEL GENERALLY PERPENDICULAR TO SAID RELATIVELY FLAT CENTER PORTION OF SAID STRIP, A TOOTHED SAW BLADE MOUNTED ON SAID HOLDER AND DISPOSED TO PASS BETWEEN SAID MEMBERS ON THE DOWNSTROKE OF SAID BLADE HOLDER TO CUT A KERF TRANSVERSELY ACROSS SAID ROLLED EDGE BEAD FROM THE OUTER SIDE THEREOF, THE TEETH OF SAID BLADE BEING DISPOSED AT A RELATIVELY SMALL ACUTE ANGLE WITH RESPECT TO THE LINE OF TRAVEL OF SAID BLADE HOLDER AT AN ANGLE SUCH THAT UPON COMPLETION OF SAID DOWNSTROKE,
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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) | 1967-01-27 | 1967-07-29 | 1968-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-01-27 | 1971-07-29 | 1972-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-01-27 | 1975-07-29 | 1976-01-28 | $7700.00 | Window Closed / Lapsed |