Patent US3194364A successfully refreshed from Google Patents.
US3194364A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vacuum seal
Assignee: Spectrolab Inc
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Filing: 1963-06-27
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Granted: 1965-07-13
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Expires: 1983-06-27
Abstract
No abstract record available.
Inventors
- 👤 Frederick L Kolm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:46
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/03; F; F16; F16J; F16J15/00; F16J15/02; F16J15/06; F16J15/062
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
139 words
A VACUUM SEAL FOR SUPPORTING THE PERIPHERY OF AN OBJECT IN SEALING RELATIONSHIP, COMPRISING, IN COMBINATION: FIRST AND SECOND CLAMPING RINGS; AN ANNULAR EXPANDABLE SEALING MEMBER HAVING AN INNER SURFACE ADAPTED TO SURROUND THE PERIPHERY OF SAID OBJECT AND OPPOSITE SURFACES ADAPTEDTO BE SANDWICHES BETWEEN SAID CLAMPING RINGS, THE INNER OPENINGS OF SAID RINGS AND ANNULAR SEALING MEMBER BEING COAXIAL AND THE OUTSIDE DIAMETER OF SAID SEALING MEMBER BEING GREATER THAN THE INSIDE DIAMETERS OF SAID CLAMPING RINGS; AND MEANS COOPERATING WITH SAID CLAMPING RINGS TO EXERT A SQUEEZING PRESSURE NORMAL TO THE PLANE OF SAID RINGS ON SAID OPPOSITE SURFACES OF SAID ANNULAR SEALING MEMBER TO CAUSE RADIALLY SURFACES OF SAID MOVEMENT OF SAID INNER SURFACE IN A PLANE BETWEEN SAID CLAMPING RINGS TO THEREBY EXERT A RADIAL PRESSURE AGAINST THE PERIPHERY OF SAID OBJECT OVER 360 DEGREES.
Claim 2
Dependent Claim
139 words
A VACUUM SEAL FOR SUPPORTING THE PERIPHERY OF AN OBJECT IN SEALING RELATIONSHIP, COMPRISING, IN COMBINATION: FIRST AND SECOND CLAMPING RINGS; AN ANNULAR EXPANDABLE SEALING MEMBER HAVING AN INNER SURFACE ADAPTED TO SURROUND THE PERIPHERY OF SAID OBJECT AND OPPOSITE SURFACES ADAPTEDTO BE SANDWICHES BETWEEN SAID CLAMPING RINGS, THE INNER OPENINGS OF SAID RINGS AND ANNULAR SEALING MEMBER BEING COAXIAL AND THE OUTSIDE DIAMETER OF SAID SEALING MEMBER BEING GREATER THAN THE INSIDE DIAMETERS OF SAID CLAMPING RINGS; AND MEANS COOPERATING WITH SAID CLAMPING RINGS TO EXERT A SQUEEZING PRESSURE NORMAL TO THE PLANE OF SAID RINGS ON SAID OPPOSITE SURFACES OF SAID ANNULAR SEALING MEMBER TO CAUSE RADIALLY SURFACES OF SAID MOVEMENT OF SAID INNER SURFACE IN A PLANE BETWEEN SAID CLAMPING RINGS TO THEREBY EXERT A RADIAL PRESSURE AGAINST THE PERIPHERY OF SAID OBJECT OVER 360 DEGREES.
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) | 1968-07-12 | 1969-01-11 | 1969-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-12 | 1973-01-11 | 1973-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-12 | 1977-01-11 | 1977-07-13 | $7700.00 | Window Closed / Lapsed |