US3210086A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft seal
Assignee: Mather Co
•
Filing: 1963-03-27
•
Granted: 1965-10-05
•
Expires: 1983-03-27
Abstract
No abstract record available.
Inventors
- 👤 Raymond A Hudson
- 👤 David L Walchle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:14
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/324; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/944
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A SEALING DEVICE FOR A ROTATABLE SHAFT PASSING THROUGH AN APERTURE IN A WALL HAVING LIQUID ON ONE OF ITS SIDES, WITH SAID DEVICE INTENDED TO PREVENT PASSAGE OF THE LIQUID TO THE OTHER SIDE OF THE WALL THROUGH SAID APERTURE BOTH BETWEEN STATIONARY CONTACTING SURFACES AS WELL AS BETWEEN SURFACES IN SLIDING CONTACT, SAID SEALING DEVICE COMPRISING A METAL CASE SEALING FITTED INTO SAID APERTURE, SAID CASING SEALING THE LIQUID AT THE WALL SURFACES OF SAID APERTURE AND PROVIDING A PHERIPHERAL PINCHING GROOVE, A SEAL MEMBER OF THE DIAPHRAGM TYPE HAVING ITS OUTER PERIPHERAY PINCHED IN PART OF SAID GROOVE BY SAID CASING REMAINING PART OF SAID GROOVE CONTAINING A RESIN TO INSURE FLUID TIGHT SEAL OF SAID DIAPHRAGM SEAL MEMBER IN SAID GROOVE, THE OPENING IN THE CENTER OF SAID DIAPHRAGM BEING OF A SMALER DIAMETER THAN SAID SHAFT, IN ORDER TO HVE THE EDGES OF SAID
Claim 2
Dependent Claim
149 words
A SEALING DEVICE FOR A ROTATABLE SHAFT PASSING THROUGH AN APERTURE IN A WALL HAVING LIQUID ON ONE OF ITS SIDES, WITH SAID DEVICE INTENDED TO PREVENT PASSAGE OF THE LIQUID TO THE OTHER SIDE OF THE WALL THROUGH SAID APERTURE BOTH BETWEEN STATIONARY CONTACTING SURFACES AS WELL AS BETWEEN SURFACES IN SLIDING CONTACT, SAID SEALING DEVICE COMPRISING A METAL CASE SEALING FITTED INTO SAID APERTURE, SAID CASING SEALING THE LIQUID AT THE WALL SURFACES OF SAID APERTURE AND PROVIDING A PHERIPHERAL PINCHING GROOVE, A SEAL MEMBER OF THE DIAPHRAGM TYPE HAVING ITS OUTER PERIPHERAY PINCHED IN PART OF SAID GROOVE BY SAID CASING REMAINING PART OF SAID GROOVE CONTAINING A RESIN TO INSURE FLUID TIGHT SEAL OF SAID DIAPHRAGM SEAL MEMBER IN SAID GROOVE, THE OPENING IN THE CENTER OF SAID DIAPHRAGM BEING OF A SMALER DIAMETER THAN SAID SHAFT, IN ORDER TO HVE THE EDGES OF SAID
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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) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |