US3152828A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum cup units for lifting pads
Assignee: Alvey Conveyor Manufacturing Co
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Filing: 1962-02-02
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Granted: 1964-10-13
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Expires: 1982-02-02
Abstract
No abstract record available.
Inventors
- 👤 George F Lytle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:40
CPC Classifications
B; B65; B65G; B65G49/00; B65G49/05; B65G49/06; B65G49/061; B65G47/00; B65G47/74; B65G47/90; B65G47/91; B66; B66C; B66C1/00; B66C1/02; B66C1/0212; B66C1/0231; B66C1/0293; B65G2249/00; B65G2249/04; B65G2249/045
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
150 words
VACUUM LIFTING APPARATUS, COMPRISING, IN COMBINATION, A VACUUM CUP INCLUDING, A CARRIER PLATE (C) RECESSED ALONG ITS UPPER EDGE TO PROVIDE A POCKET, A ONE-PIECE RESILIENT VACUUM CUP (B) HAVING A MEDIAL PORTION COEXTENSIVE WITH THE LOWER MATERIAL ENGAGING FACE OF SAID CARRIER PLATE (C) AND ALSO HAVING AN ELASTIC FLANGE (7) FITTED IN SAID POCKET, A SUPPORT (A), INCLUDING A CENTRAL MEDIAL BOSS (14) AND A FLANGE (A'') COEXTENSIVE WITH AND OVERLYING SAID CARRIER PLATE (C) TO COVER AND HOLD SAID ELASTIC FLANGE (7) IN SAID POCKET, HANGER MEANS (18-20) HAVING ITS LOWERMOST PORTION RETAINED WITHIN SAID BOSS, AND RESILIENT MEANS (22 OR22A) WITHIN SAID SUPPORT DISPOSED BENEATH THE LOWERMOST PORTION OF THE HANGER MEANS (18-20) ON THE ONE HAND AND BEARING FLUSHLY ON THE OTHER HAND WITH THE UPPER FACE OF THE CARRIER PLATE (C) TO MAINTAIN THE PLATE SUBSTANTIALLY AT RIGHT ANGLES TO THE SAID HANGER MEANS.
References Cited (Backward Citations)
US1294103A
Cited
GB364156A
Cited
US2123549A
Cited
US2941675A
Cited
FR1200944A
Cited
US3063746A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |