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US3244090A Expired / Lapsed US ⏱️ 0.0 years remaining

Calender

Assignee: BF Perkins and Son Inc
•
Filing: 1964-09-01
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Granted: 1966-04-05
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Expires: 1984-09-01
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Abstract

No abstract record available.

Inventors

  • 👤 Waldemar O Bischoff

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-10 02:22
CPC Classifications
D; D06; D06C; D06C15/00; D06C15/02; D21; D21G; D21G1/00; D21G1/02; D21G1/0293

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 223 words
A THREE-ROLL CALENDER COMPRISING, A PAIR OF SPACED FRAMES, AN UPPER STATIONARY ROLL AND TWO LOWER FILLED ROLLS PROVIDED WITH ROLL SHAFTS EXTENDING BEYOND THE ENDS THEREOF WITH THE AXES OF THE ROLL SHAFTS BEING DISPOSED IN TRIANGULAR ARRANGEMENT, BEARINGS FOR SAID ROLL SHAFTS, MOUNTED RELATIVE TO SAID FRAMES OF SAID PAIR THEREOF AND COOPERATING WITH THE END PORTIONS OF SAID ROLL SHAFTS, HOUSINGS ON WHICH SAID BEARINGS ARE SUPPORTED, WAYS ON SAID FRAMES OF SAID PAIR THEREOF IN WHICH SAID HOUSINGS ARE RELEASABLY AND SLIDEABLY MOUNTED TO PERMIT SAID LOWER ROLLS TO MOVE IN SERIATIM AND SELECTIVELY TOWARD AND FROM SAID UPER ROLL, MEANS LOCATED BELOW AND ACTING ON SAID HOUSINGS OF SAID LOWER ROLLS FOR URGING SAID LOWER ROLLS UPWARDLY TOWARD AND DOWNWARDLY AWAY FROM SAID UPPER ROLL, A ROLL CARRIAGE BETWEEN SAID FRAMES LOCATED BELOW AND VERTICALLY ALIGNABLE WITH EACH SAID LOWER ROLL, MEANS FOR SELECTIVELY RAISING AND LOWERING SAID ROLL CARRIAGE WHEREBY SAID CARRIAGE MAY BE MOVED INTO AND OUT OF SUPPORTING ENGAGEMENT WITH ONE OF SAID ROLLS TO SELECTIVELY PERMIT THE REMOVAL OF SAID ROLL HOUSINGS AND SAID ONE OF SAID ROLLS FROM THE FRAMES AND THE ENGAGEMENT OF SAID ROLL HOUSINGS AND SAID ONE OF SAID ROLLS WITH SAID FRAMES, SAID FRAMES BEING SO SPACED AS TO PERMIT THE REMOVAL OF SAID CARRIAGE FROM ITS POSITION THEREBETWEEN.
Claim 2
Dependent Claim 223 words
A THREE-ROLL CALENDER COMPRISING, A PAIR OF SPACED FRAMES, AN UPPER STATIONARY ROLL AND TWO LOWER FILLED ROLLS PROVIDED WITH ROLL SHAFTS EXTENDING BEYOND THE ENDS THEREOF WITH THE AXES OF THE ROLL SHAFTS BEING DISPOSED IN TRIANGULAR ARRANGEMENT, BEARINGS FOR SAID ROLL SHAFTS, MOUNTED RELATIVE TO SAID FRAMES OF SAID PAIR THEREOF AND COOPERATING WITH THE END PORTIONS OF SAID ROLL SHAFTS, HOUSINGS ON WHICH SAID BEARINGS ARE SUPPORTED, WAYS ON SAID FRAMES OF SAID PAIR THEREOF IN WHICH SAID HOUSINGS ARE RELEASABLY AND SLIDEABLY MOUNTED TO PERMIT SAID LOWER ROLLS TO MOVE IN SERIATIM AND SELECTIVELY TOWARD AND FROM SAID UPER ROLL, MEANS LOCATED BELOW AND ACTING ON SAID HOUSINGS OF SAID LOWER ROLLS FOR URGING SAID LOWER ROLLS UPWARDLY TOWARD AND DOWNWARDLY AWAY FROM SAID UPPER ROLL, A ROLL CARRIAGE BETWEEN SAID FRAMES LOCATED BELOW AND VERTICALLY ALIGNABLE WITH EACH SAID LOWER ROLL, MEANS FOR SELECTIVELY RAISING AND LOWERING SAID ROLL CARRIAGE WHEREBY SAID CARRIAGE MAY BE MOVED INTO AND OUT OF SUPPORTING ENGAGEMENT WITH ONE OF SAID ROLLS TO SELECTIVELY PERMIT THE REMOVAL OF SAID ROLL HOUSINGS AND SAID ONE OF SAID ROLLS FROM THE FRAMES AND THE ENGAGEMENT OF SAID ROLL HOUSINGS AND SAID ONE OF SAID ROLLS WITH SAID FRAMES, SAID FRAMES BEING SO SPACED AS TO PERMIT THE REMOVAL OF SAID CARRIAGE FROM ITS POSITION THEREBETWEEN.

References Cited (Backward Citations)

CA665272A Cited
US1289675A Cited
CH331818A Cited
US3153378A Cited
US3111894A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-04-04 1969-10-04 1970-04-05 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-04-04 1973-10-04 1974-04-05 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-04-04 1977-10-04 1978-04-05 $7700.00 Window Closed / Lapsed

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