Patent US3166335A successfully refreshed from Google Patents.
US3166335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Expanding mandrel assembly
Assignee: Armstrong World Industries Inc
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Filing: 1963-05-06
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Granted: 1965-01-19
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Expires: 1983-05-06
Abstract
No abstract record available.
Inventors
- 👤 William L Mason
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:16
CPC Classifications
B; B65; B65H; B65H75/00; B65H75/02; B65H75/18; B65H75/24; B65H75/242; B65H75/243; B65H75/2437; B65H2402/00; B65H2402/20; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10T; Y10T279/00; Y10T279/10; Y10T279/1083; Y10T279/1087; Y10T82/00; Y10T82/26; Y10T82/266; Y10T82/268
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN EXPANDING MANDREL ASSEMBLY COMPRISING IN COMBINATION A HOLLOW, OPEN-ENDED, CYLINDRICAL RUBBER SLEEVE HAVING RAISED EXTERNAL FLANGES AT EACH END THEREOF, A PAIR OF SUPPORTING CYLINDRICAL CAPS HAVING SHOULDERS THEREON ADAPTED TO RECEIVE SAID FLANGES, SAID SHOULDERS HAVING SUFFICIENT DEPTH TO FORM A GAP BETWEEN THE OUTER EDGES OF SAID FLANGES AND THE INNER CORRESPONDING SURFACES OF SAID SHOULDERS TO ALLOW SAID FLANGES TO BEND OUTWARDLY IN THE AXIAL DIRECTION DURING EXPANSION OF SAID SLEEVE, THE CAPS BEING MOUNTED ON THE OPEN ENDS OF SAID SLEEVE TO FORM AIRTIGHT SEALS THEREON, AND MEANS FOR ADMITTING AIR UNDER PRESSURE INTO THE SEALED INTERIOR OF SAID SLEEVE TO CAUSE SAID SLEEVE TO EXPAND, AND SUPPORTING MEANS FOR SAID CAPS AND SAID EXPANDED SLEEVE.
Claim 2
Dependent Claim
121 words
AN EXPANDING MANDREL ASSEMBLY COMPRISING IN COMBINATION A HOLLOW, OPEN-ENDED, CYLINDRICAL RUBBER SLEEVE HAVING RAISED EXTERNAL FLANGES AT EACH END THEREOF, A PAIR OF SUPPORTING CYLINDRICAL CAPS HAVING SHOULDERS THEREON ADAPTED TO RECEIVE SAID FLANGES, SAID SHOULDERS HAVING SUFFICIENT DEPTH TO FORM A GAP BETWEEN THE OUTER EDGES OF SAID FLANGES AND THE INNER CORRESPONDING SURFACES OF SAID SHOULDERS TO ALLOW SAID FLANGES TO BEND OUTWARDLY IN THE AXIAL DIRECTION DURING EXPANSION OF SAID SLEEVE, THE CAPS BEING MOUNTED ON THE OPEN ENDS OF SAID SLEEVE TO FORM AIRTIGHT SEALS THEREON, AND MEANS FOR ADMITTING AIR UNDER PRESSURE INTO THE SEALED INTERIOR OF SAID SLEEVE TO CAUSE SAID SLEEVE TO EXPAND, AND SUPPORTING MEANS FOR SAID CAPS AND SAID EXPANDED SLEEVE.
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) | 1968-01-19 | 1968-07-20 | 1969-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-19 | 1972-07-20 | 1973-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-19 | 1976-07-20 | 1977-01-19 | $7700.00 | Window Closed / Lapsed |