Patent US3301498A successfully refreshed from Google Patents.
US3301498A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manual latch for coreshaft box
Assignee: Library and Archives Canada
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Filing: 1964-12-21
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Granted: 1967-01-31
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Expires: 1984-12-21
Abstract
No abstract record available.
Inventors
- 👤 Greding Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:54
CPC Classifications
B; B65; B65H; B65H18/00; B65H18/08; B65H18/14; B65H18/20; B65H18/02; B65H18/04; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/413; B65H2301/4136; B65H2301/41366; B65H2301/414; B65H2301/4148; B65H2301/41486; B65H2301/414866; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1043; Y10T292/1075; Y10T292/1076
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
IN A WINDER FOR PAPER MACHINES EMPLOYING A CORESHAFT FOR WINDING PAPER THEREON HAVING A BEARING AND BEARING HOUSING MEANS POSITIONED ADJACENT THE ENDS THEREOF, MOUNTING FRAME MEMBERS HAVING MOUNTING BRACKET MEANS POSITIONED THEREON TO RECEIVE THE CORESHAFT BEARING HOUSING MEANS, AND PIVOTAL LATCH MEANS FOR RELEASABLY CLAMPING THE CORESHAFT BEARING HOUSING IN THE MOUNTING BRACKET MEANS, A TOGGLE LINKAGE MECHANISM INCLUDING FIRST AND SECOND PIVOTALLY CONNECTED TOGGLE LINKS OPERATIVELY CONNECTED THERETO TO PROVIDE CLAMPING FORCE OF THE LATCH MEANS AGAINST THE BEARING HOUSING MEANS WHEN IN A SUBSTANTIALLY STRAIGHT-LINE CONFIGURATION AND INCLUDING STOP MEANS POSITIONED TO LIMIT THE MOVEMENT OF THE TOGGLE LINKAGE MECHANISM ON ONE SIDE OF SAID SUBSTANTIALLY STRAIGHTLINE CONFIGURATION, WHEN IN THE CLAMPING POSITION, THE IMPROVEMENT COMPRISING A MOVABLE RELEASE HANDLE MOUNTED ON SAID WINDER ADJACENT THE LINKAGE PIVOT CONNECTION OF SAID TOGGLE LINKAGE MECHANISM, HAVING A SUBSTANTIALLY RIGID RELEASE LEVER PORTION FOR RELEASING DISPLACEMENT OF THE LINKAGE PIVOT CONNECTION FROM SAID STOP MEANS AND PAST SAID SUBSTANTIALLY STRAIGHT-LINE CONFIGURATION TO AN UNLOCKED POSITION, WHEREBY SAID PIVOT LATCH MEANS IS RELEASED FROM CLAMPING ENGAGEMENT WITH THE BEARING HOUSING, TO PERMIT READY REMOVAL OF THE BEARING HOUSING FROM THE WINDER.
Claim 2
Dependent Claim
193 words
IN A WINDER FOR PAPER MACHINES EMPLOYING A CORESHAFT FOR WINDING PAPER THEREON HAVING A BEARING AND BEARING HOUSING MEANS POSITIONED ADJACENT THE ENDS THEREOF, MOUNTING FRAME MEMBERS HAVING MOUNTING BRACKET MEANS POSITIONED THEREON TO RECEIVE THE CORESHAFT BEARING HOUSING MEANS, AND PIVOTAL LATCH MEANS FOR RELEASABLY CLAMPING THE CORESHAFT BEARING HOUSING IN THE MOUNTING BRACKET MEANS, A TOGGLE LINKAGE MECHANISM INCLUDING FIRST AND SECOND PIVOTALLY CONNECTED TOGGLE LINKS OPERATIVELY CONNECTED THERETO TO PROVIDE CLAMPING FORCE OF THE LATCH MEANS AGAINST THE BEARING HOUSING MEANS WHEN IN A SUBSTANTIALLY STRAIGHT-LINE CONFIGURATION AND INCLUDING STOP MEANS POSITIONED TO LIMIT THE MOVEMENT OF THE TOGGLE LINKAGE MECHANISM ON ONE SIDE OF SAID SUBSTANTIALLY STRAIGHTLINE CONFIGURATION, WHEN IN THE CLAMPING POSITION, THE IMPROVEMENT COMPRISING A MOVABLE RELEASE HANDLE MOUNTED ON SAID WINDER ADJACENT THE LINKAGE PIVOT CONNECTION OF SAID TOGGLE LINKAGE MECHANISM, HAVING A SUBSTANTIALLY RIGID RELEASE LEVER PORTION FOR RELEASING DISPLACEMENT OF THE LINKAGE PIVOT CONNECTION FROM SAID STOP MEANS AND PAST SAID SUBSTANTIALLY STRAIGHT-LINE CONFIGURATION TO AN UNLOCKED POSITION, WHEREBY SAID PIVOT LATCH MEANS IS RELEASED FROM CLAMPING ENGAGEMENT WITH THE BEARING HOUSING, TO PERMIT READY REMOVAL OF THE BEARING HOUSING FROM THE WINDER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |