Patent US3320007A successfully refreshed from Google Patents.
US3320007A
Expired / Lapsed
US
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Vented mechanical device
Assignee: Emerson Electric Co
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Filing: 1963-11-01
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Granted: 1967-05-16
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Expires: 1983-11-01
Abstract
No abstract record available.
Inventors
- 👤 James O Tennies
- 👤 Robert H Mead
- 👤 Jr Charles M Allaben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:56
CPC Classifications
F; F16; F16C; F16C33/00; F16C33/30; F16C33/66; F16C33/6637; F16C19/00; F16C19/52; F16C33/6659; F16C33/6677; F16D; F16D41/00; F16D41/06; F16D41/069; F16D41/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
A ROTATIONAL DEVICE ADAPTED TO BE MOUNTED ON A KEYED SHAFT COMPRISING A FIRST MEMBER HAVING A PASSAGE FORMED THEREIN FOR RECEIVING THE SHAFT, A SECOND OUTER MEMBER POSITIONED AROUND SAID FIRST MEMBER, BEARING MEANS FOR ROTATABLY SUPPORTING SAID SECOND MEMBER ON SAID FIRST MEMBER, AND SEAL MEANS EXTENDING BETWEEN SAID FIRST AND SECOND MEMBERS FOR ENCLOSING SAID BEARING MEANS BETWEEN SAID FIRST AND SECOND MEMBERS, SAID FIRST MEMBER HAVING A SINGLE KEYWAY FORMED THEREIN OPENING INTO THE SHAFT PASSAGE AND EXTENDING AXIALLY TO THE END OF THE FIRST MEMBER, SAID FIRST MEMBER HAVING ANOTHER PASSAGE FORMED THEREIN AT ONE PERIPHERAL POINT THEREOF OPPOSITE THE KEYWAY AND EXTENDING RADIALLY INWARD FROM THE BEARING ENCLOSURE AND AROUND THE SURFACE OF THE SHAFT RECEIVING PASSAGE AND OPENING INTO THE KEYWAY FOR VENTING THE BEARING ENCLOSURE TO THE ATMOSPHERE THROUGH THE FIRST MEMBER.
Claim 2
Dependent Claim
140 words
A ROTATIONAL DEVICE ADAPTED TO BE MOUNTED ON A KEYED SHAFT COMPRISING A FIRST MEMBER HAVING A PASSAGE FORMED THEREIN FOR RECEIVING THE SHAFT, A SECOND OUTER MEMBER POSITIONED AROUND SAID FIRST MEMBER, BEARING MEANS FOR ROTATABLY SUPPORTING SAID SECOND MEMBER ON SAID FIRST MEMBER, AND SEAL MEANS EXTENDING BETWEEN SAID FIRST AND SECOND MEMBERS FOR ENCLOSING SAID BEARING MEANS BETWEEN SAID FIRST AND SECOND MEMBERS, SAID FIRST MEMBER HAVING A SINGLE KEYWAY FORMED THEREIN OPENING INTO THE SHAFT PASSAGE AND EXTENDING AXIALLY TO THE END OF THE FIRST MEMBER, SAID FIRST MEMBER HAVING ANOTHER PASSAGE FORMED THEREIN AT ONE PERIPHERAL POINT THEREOF OPPOSITE THE KEYWAY AND EXTENDING RADIALLY INWARD FROM THE BEARING ENCLOSURE AND AROUND THE SURFACE OF THE SHAFT RECEIVING PASSAGE AND OPENING INTO THE KEYWAY FOR VENTING THE BEARING ENCLOSURE TO THE ATMOSPHERE THROUGH THE FIRST MEMBER.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-05-15 | 1970-11-14 | 1971-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-15 | 1974-11-14 | 1975-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-15 | 1978-11-14 | 1979-05-16 | $7700.00 | Window Closed / Lapsed |