Patent US4748648A successfully refreshed from Google Patents.
Patent US3220664A successfully refreshed from Google Patents.
US3220664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attaching means for reels
Assignee: 3M Co
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Filing: 1962-08-06
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Granted: 1965-11-30
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Expires: 1982-08-06
Abstract
No abstract record available.
Inventors
- 👤 Ronald L Whitnah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:51
CPC Classifications
G; G03; G03B; G03B21/00; G03B21/14; G03B21/32; G03B21/321; G03B21/326; B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/28; B65H2301/00; B65H2301/40; B65H2301/41; B65H2301/414; B65H2301/41419; B65H2301/41422; B65H2301/414225
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
MEANS FOR ATTACHING ONE END OF A FLEXIBLE STRIP TO A SPOOL HAVING AN ANNULAR WINDING SURFACE AND HAVING FORMED THEREIN AN AXIALLY EXTENDING OPENING DEFINED BY A FIRST SEMICYLINDRICAL SURFACE OF A GIVEN RADIUS AND A SECOND SEMICYLINDRICAL SURFACE OF A DIFFERENT RADIUS TANGENTIAL TO SAID FIRST SURFACE TO PROVIDE AN AXIALLY EXTENDING RADIALLY OFFSET SHOULDER, AND HAVING MEANS DEFINING A PASSAGE EXTENDING THROUGH SAID WINDING SURFACE TO SAID OPENING AT AN AREA ARCUATELY OFFSET FROM SAID SHOULDER, A CYLINDRICAL OPEN-ENDED RESILIENT CLAMPING MEMBER FORMED WITH AN APERTURE IN ITS PERIPHERY, SAID MEMBER HAVING TELESCOPICALLY RECEIVED IN SNUGLY ROTATABLE RELATION WITHIN SAID OPENING AND ADAPTED TO ALIGN SAID APERTURE WITH SAID PASSAGE WHEREBY, WHEN ONE END OF A STRIP IS FED THROUGH SAID PASSAGE AND SAID APERTURE, SAID MEMBER MAY BE ROTATED TO LOCK THE STRIP TO THE SPOOL UPON ROTATION OF THE MEMBER UNTIL THE APERTURE COINCIDES WITH SAID SHOULDER.
Claim 2
Dependent Claim
152 words
MEANS FOR ATTACHING ONE END OF A FLEXIBLE STRIP TO A SPOOL HAVING AN ANNULAR WINDING SURFACE AND HAVING FORMED THEREIN AN AXIALLY EXTENDING OPENING DEFINED BY A FIRST SEMICYLINDRICAL SURFACE OF A GIVEN RADIUS AND A SECOND SEMICYLINDRICAL SURFACE OF A DIFFERENT RADIUS TANGENTIAL TO SAID FIRST SURFACE TO PROVIDE AN AXIALLY EXTENDING RADIALLY OFFSET SHOULDER, AND HAVING MEANS DEFINING A PASSAGE EXTENDING THROUGH SAID WINDING SURFACE TO SAID OPENING AT AN AREA ARCUATELY OFFSET FROM SAID SHOULDER, A CYLINDRICAL OPEN-ENDED RESILIENT CLAMPING MEMBER FORMED WITH AN APERTURE IN ITS PERIPHERY, SAID MEMBER HAVING TELESCOPICALLY RECEIVED IN SNUGLY ROTATABLE RELATION WITHIN SAID OPENING AND ADAPTED TO ALIGN SAID APERTURE WITH SAID PASSAGE WHEREBY, WHEN ONE END OF A STRIP IS FED THROUGH SAID PASSAGE AND SAID APERTURE, SAID MEMBER MAY BE ROTATED TO LOCK THE STRIP TO THE SPOOL UPON ROTATION OF THE MEMBER UNTIL THE APERTURE COINCIDES WITH SAID SHOULDER.
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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |