US3327894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank closure device
Assignee: Individual
•
Filing: 1965-12-21
•
Granted: 1967-06-27
•
Expires: 1985-12-21
Abstract
No abstract record available.
Inventors
- 👤 De Lacy F Ferris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:27
CPC Classifications
F; F16; F16K; F16K13/00; F16K13/04; F02; F02K; F02K9/00; F02K9/42; F02K9/60; F02K9/605; Y; Y10; Y10T; Y10T137/00; Y10T137/1624; Y10T137/1632; Y10T137/1692; Y10T137/1714; Y10T137/1729; Y10T137/1744
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
172 words
A CLOSURE DEVICE FOR HERMETICALLY SEALING THE OUTLET PASSAGE OF A TANK COMPRISING, IN COMBINATION: A TUBULAR TANK OUTLET BODY DEFINING AN AXIALLY EXTENDING FLOW PASSAGE AND HAVING AN ANNULAR GROOVE FORMED IN THE INTERIOR WALL THEREOF, A PROTRUSION EXTENDNG RADIALLY OUTWARD FROM A PERIPHERAL PORTION OF THE EXTERIOR OF SAID BODY, SAID PROTRUSION HAVING AN AXIAL BORE EXTENDING THERETHROUGH AND OPENING ON ITS INNER END INTO SAID ANNULAR GROOVE; A BURST DIAPHRAGM SECURED ABOUT ITS PERIPHERAL EDGE TO THE INTERIOR WALL OF SAID OUTLET FLOW PASSAGE AT A LOCATION AXIALLY INWARD OF SAID ANNULAR GROOVE, SAID DIAPHRAGM HAVING A SCORE PATTERN FORMED THEREIN, SAID SCORE PATTERN INCLUDING A SUBSTANTIALLY CIRCULAR FRANGIBLE LINE CONCENTRIC WITH BUT SPACED RADIALLY INWARDLY FROM SAID PERIPHERAL EDGE; A GENERALLY CIRCULAR SUPPORT MEANS DISPOSED IN SAID ANNULAR GROOVE; AND, ACTUATING MEANS EXTENDING THROUGH SAID PROTRUSION BORE AND CONNECTED WITH SAID SUPPORT MEANS FOR MOVING SAID SUPPORT MEANS RADIALLY INWARDLY AND RADIALLY OUTWARDLY TO, RESPECTIVELY, SUPPORT AND UNSUPPORT THE BURST DIAPHRAGM IN THE AREA OF THE SCORE PATTERN.
Claim 2
Dependent Claim
172 words
A CLOSURE DEVICE FOR HERMETICALLY SEALING THE OUTLET PASSAGE OF A TANK COMPRISING, IN COMBINATION: A TUBULAR TANK OUTLET BODY DEFINING AN AXIALLY EXTENDING FLOW PASSAGE AND HAVING AN ANNULAR GROOVE FORMED IN THE INTERIOR WALL THEREOF, A PROTRUSION EXTENDNG RADIALLY OUTWARD FROM A PERIPHERAL PORTION OF THE EXTERIOR OF SAID BODY, SAID PROTRUSION HAVING AN AXIAL BORE EXTENDING THERETHROUGH AND OPENING ON ITS INNER END INTO SAID ANNULAR GROOVE; A BURST DIAPHRAGM SECURED ABOUT ITS PERIPHERAL EDGE TO THE INTERIOR WALL OF SAID OUTLET FLOW PASSAGE AT A LOCATION AXIALLY INWARD OF SAID ANNULAR GROOVE, SAID DIAPHRAGM HAVING A SCORE PATTERN FORMED THEREIN, SAID SCORE PATTERN INCLUDING A SUBSTANTIALLY CIRCULAR FRANGIBLE LINE CONCENTRIC WITH BUT SPACED RADIALLY INWARDLY FROM SAID PERIPHERAL EDGE; A GENERALLY CIRCULAR SUPPORT MEANS DISPOSED IN SAID ANNULAR GROOVE; AND, ACTUATING MEANS EXTENDING THROUGH SAID PROTRUSION BORE AND CONNECTED WITH SAID SUPPORT MEANS FOR MOVING SAID SUPPORT MEANS RADIALLY INWARDLY AND RADIALLY OUTWARDLY TO, RESPECTIVELY, SUPPORT AND UNSUPPORT THE BURST DIAPHRAGM IN THE AREA OF THE SCORE PATTERN.
References Cited (Backward Citations)
US2764173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |