Patent US3240525A successfully refreshed from Google Patents.
US3240525A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum device for handling articles
Assignee: WOOD S POWR GRIP CO Inc
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Filing: 1963-12-13
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Granted: 1966-03-15
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Expires: 1983-12-13
Abstract
No abstract record available.
Inventors
- 👤 Howard L Wood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 08:51
CPC Classifications
B; B25; B25B; B25B11/00; B25B11/005; B25B11/007; B65; B65G; B65G49/00; B65G49/05; B65G49/06; B65G49/061; B65G2249/00; B65G2249/04; B65G2249/045
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
193 words
A DEVICE FOR HANDLING OBJECTS HAVING A SUBSTANTIALLY SMOOTH SURFACE COMPRISING A VACUUM ATTACHING PAD HAVING AN ATTACHING FACE WITH A PERIPHERAL SEAL MEANS THEREON, A HANDLE ATTACHED TO SAID PAD, AND AN AIR EVACUATING PUMP INCORPORATED INTO SAID HANDLE AND COMMUNICATED WITH THE ATTACHING SURFACE OF THE PAD FOR EXHAUSTING AIR FROM THE ATTACHING SURFACE INWARDLY OF SAID SEAL MEANS, SAID SEAL MEANS INCLUDING A PLURALITY OF PERIPHERAL RIBS ON THE ATTACHING SURFACE, ADJACENT PERIPHERAL RIBS BEING INTERCONNECTED AT CIRCUMFERENTIALLY SPACED POINTS BY A PLURALITY OF RADIALLY DISPOSED RIDGES ADAPTED TO BLOCK OF CERTAIN SECTIONS OF THE PERIPHERAL GROOVE DEFINED BY SAID PERIPHERAL RIBS, SAID ATTACHING SURFACE HAVING A PLURALITY OF COMMUNICATING SHALLOW GROOVES EXTENDING RADIALLY AND CIRCUMFERENTIALLY THEREOF INWARDLY OF THE SEALING RIBS WHEREBY THE COMPLETE SURFACE AREA OF THE ATTACHING SURFACE INWARDLY OF THE SEALING RIBS MAY BE COMMUNICATED WITH THE AIR EVACUATING PUMP, SAID PAD HAVING A RADIAL SLIT DISPOSED IN THE UPSTANDING PERIPHERAL EDGE THEREOF FOR INCREASING THE FLEXIBLE CHARACTER OF THE ATTACHING FACE AND ALSO ENABLING ATMOSPHERIC AIR TO ENGAGE THE INNER EDGE OF THE SLIT FOR HOLDING THE SEALING RIBS SECURELY AGAINST THE ARTICLE BEING CARRIED.
Claim 2
Independent Claim
193 words
A DEVICE FOR HANDLING OBJECTS HAVING A SUBSTANTIALLY SMOOTH SURFACE COMPRISING A VACUUM ATTACHING PAD HAVING AN ATTACHING FACE WITH A PERIPHERAL SEAL MEANS THEREON, A HANDLE ATTACHED TO SAID PAD, AND AN AIR EVACUATING PUMP INCORPORATED INTO SAID HANDLE AND COMMUNICATED WITH THE ATTACHING SURFACE OF THE PAD FOR EXHAUSTING AIR FROM THE ATTACHING SURFACE INWARDLY OF SAID SEAL MEANS, SAID SEAL MEANS INCLUDING A PLURALITY OF PERIPHERAL RIBS ON THE ATTACHING SURFACE, ADJACENT PERIPHERAL RIBS BEING INTERCONNECTED AT CIRCUMFERENTIALLY SPACED POINTS BY A PLURALITY OF RADIALLY DISPOSED RIDGES ADAPTED TO BLOCK OF CERTAIN SECTIONS OF THE PERIPHERAL GROOVE DEFINED BY SAID PERIPHERAL RIBS, SAID ATTACHING SURFACE HAVING A PLURALITY OF COMMUNICATING SHALLOW GROOVES EXTENDING RADIALLY AND CIRCUMFERENTIALLY THEREOF INWARDLY OF THE SEALING RIBS WHEREBY THE COMPLETE SURFACE AREA OF THE ATTACHING SURFACE INWARDLY OF THE SEALING RIBS MAY BE COMMUNICATED WITH THE AIR EVACUATING PUMP, SAID PAD HAVING A RADIAL SLIT DISPOSED IN THE UPSTANDING PERIPHERAL EDGE THEREOF FOR INCREASING THE FLEXIBLE CHARACTER OF THE ATTACHING FACE AND ALSO ENABLING ATMOSPHERIC AIR TO ENGAGE THE INNER EDGE OF THE SLIT FOR HOLDING THE SEALING RIBS SECURELY AGAINST THE ARTICLE BEING CARRIED.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |