Patent US3105679A successfully refreshed from Google Patents.
US3105679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Clamp mechanism for a paper cutting machine
Assignee: Challenge Machinery Co
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Filing: 1961-03-27
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Granted: 1963-10-01
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Expires: 1981-03-27
Abstract
No abstract record available.
Inventors
- 👤 Dan P Westra
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:33
CPC Classifications
B; B26; B26D; B26D7/00; B26D7/01; B26D7/02; B26D7/025; Y; Y10; Y10T; Y10T83/00; Y10T83/566; Y10T83/5669; Y10T83/5787; Y10T83/5805
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
CLAMPING STRUCTURE FOR A PAPER CUTTING MACHINE COMPRISING: A SUPPORTING FRAME; A CLAMPING BAR ASSOCIATED WITH SAID FRAME AND MOVABLE WITH RESPECT THERETO; FIRST AND SECOND LINKS PIVOTALLY CONNECTED TO OPPOSITE ENDS OF SAID CLAMPING BAR; FIRST AND SECOND BELL CRANKS PIVOTALLY MOUNTED TO SAID FRAME; RECIPROCATING POWER MOTOR MEANS OPERABLY MOUNTED BETWEEN SAID FRAME AND SAID FIRST BELL CRANK; SAID FIRST LINK BEING PIVOTALLY ATTACHED TO ONE END OF SAID FIRST BELL CRANK; SAID SECOND LINK BEING PIVOTALLY ATTACHED TO ONE END OF SAID SECOND BELL CRANK; AND A ROD CONNECTED BETWEEN THE ENDS OF SAID BELL CRANK; OPPOSITE TO WHICH THE LINKS ARE CONNECTED; AND MEANS FOR ADJUSTING THE LENGTH OF SAID ROD TO CAUSE MOVEMENT OF SAID SECOND LINK WITH RESPECT TO SAID FIRST LINK AS SAID LENGTH IS VARIED, WHEREBY THE HEIGHT OF THE RESPECTIVE ENDS OF SAID CLAMPING BAR MAY BE RELATIVELY ADJUSTED.
Claim 2
Dependent Claim
148 words
CLAMPING STRUCTURE FOR A PAPER CUTTING MACHINE COMPRISING: A SUPPORTING FRAME; A CLAMPING BAR ASSOCIATED WITH SAID FRAME AND MOVABLE WITH RESPECT THERETO; FIRST AND SECOND LINKS PIVOTALLY CONNECTED TO OPPOSITE ENDS OF SAID CLAMPING BAR; FIRST AND SECOND BELL CRANKS PIVOTALLY MOUNTED TO SAID FRAME; RECIPROCATING POWER MOTOR MEANS OPERABLY MOUNTED BETWEEN SAID FRAME AND SAID FIRST BELL CRANK; SAID FIRST LINK BEING PIVOTALLY ATTACHED TO ONE END OF SAID FIRST BELL CRANK; SAID SECOND LINK BEING PIVOTALLY ATTACHED TO ONE END OF SAID SECOND BELL CRANK; AND A ROD CONNECTED BETWEEN THE ENDS OF SAID BELL CRANK; OPPOSITE TO WHICH THE LINKS ARE CONNECTED; AND MEANS FOR ADJUSTING THE LENGTH OF SAID ROD TO CAUSE MOVEMENT OF SAID SECOND LINK WITH RESPECT TO SAID FIRST LINK AS SAID LENGTH IS VARIED, WHEREBY THE HEIGHT OF THE RESPECTIVE ENDS OF SAID CLAMPING BAR MAY BE RELATIVELY ADJUSTED.
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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) | 1966-09-30 | 1967-04-01 | 1967-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-30 | 1971-04-01 | 1971-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-30 | 1975-04-01 | 1975-10-01 | $7700.00 | Window Closed / Lapsed |