Patent US3330563A successfully refreshed from Google Patents.
US3330563A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inflatable seal structure
Assignee: Dico Corp
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Filing: 1965-07-15
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Granted: 1967-07-11
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Expires: 1985-07-15
Abstract
No abstract record available.
Inventors
- 👤 Puydt Frank A De
- 👤 Eugene P Conradi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:35
CPC Classifications
B; B60; B60P; B60P3/00; B60P3/06; B60P3/10; F; F16; F16J; F16J15/00; F16J15/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
121 words
AN INFLATABLE SEAL STRUCTURE FOR THE INBOARD END OF A WHEEL HUB ASSEMBLY WHICH IS ROTATABLY SUPPORTED ON A SHAFT BY A BEARING LOCATED WITHIN THE HUB, SAID STRUCTURE COMPRISING: (A) A COLLAR UNIT MOUNTED ON SAID SHAFT AT THE INBOARD END OF SAID HUB ASSEMBLY IN A CONCENTRICALLY SPACED RELATION WITH THE INNER PERIPHERAL SURFACE OF THE INBOARD END OF THE HUB ASSEMBLY, (B) AN ANNULAR INFLATABLE SEALING MEMBER MOUNTED ABOUT SAID COLLAR UNIT HAVING AN OUTER PERIPHERAL SURFACE MOVABLE INTO FRICTIONAL ENGAGEMENT WITH THE INNER PERIPHERAL SURFACE OF SAID WHEEL HUB ASSEMBLY WHEN SAID SEALING MEMBER S INFLATED, AND (C) INTERCONNECTED FLUID PASSAGE MEANS IN SAID SEALING MEMBER AND COLLAR UNIT CONNECTABLE WITH A SOURCE OF FLUID UNDER PRESSURE.
Claim 2
Dependent Claim
121 words
AN INFLATABLE SEAL STRUCTURE FOR THE INBOARD END OF A WHEEL HUB ASSEMBLY WHICH IS ROTATABLY SUPPORTED ON A SHAFT BY A BEARING LOCATED WITHIN THE HUB, SAID STRUCTURE COMPRISING: (A) A COLLAR UNIT MOUNTED ON SAID SHAFT AT THE INBOARD END OF SAID HUB ASSEMBLY IN A CONCENTRICALLY SPACED RELATION WITH THE INNER PERIPHERAL SURFACE OF THE INBOARD END OF THE HUB ASSEMBLY, (B) AN ANNULAR INFLATABLE SEALING MEMBER MOUNTED ABOUT SAID COLLAR UNIT HAVING AN OUTER PERIPHERAL SURFACE MOVABLE INTO FRICTIONAL ENGAGEMENT WITH THE INNER PERIPHERAL SURFACE OF SAID WHEEL HUB ASSEMBLY WHEN SAID SEALING MEMBER S INFLATED, AND (C) INTERCONNECTED FLUID PASSAGE MEANS IN SAID SEALING MEMBER AND COLLAR UNIT CONNECTABLE WITH A SOURCE OF FLUID UNDER PRESSURE.
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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |