Patent US3314291A successfully refreshed from Google Patents.
US3314291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diaphragms for metering devices
Assignee: Reeves Brothers Inc
•
Filing: 1963-12-23
•
Granted: 1967-04-18
•
Expires: 1983-12-23
Abstract
No abstract record available.
Inventors
- 👤 Parker S Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:05
CPC Classifications
G; G01; G01F; G01F3/00; G01F3/02; G01F3/20; G01F3/22; G01F3/225
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
AN IMPROVED GAS METER DIAPHRAGM ASSEMBLY COMPRISING A PAN HAVING A BOTTOM AND A SIDE WALL EXTENDING UPWARDLY FOR A DISTANCE FROM SAID BOTTOM AT AN ANGLE THERETO, THENCE TURNING OUTWARDLY AND DOWNWARDLY AND TERMINATING IN AN ANNULAR LIP; AND A DIAPHRAGM MEMBRANE COMPRISING A FLEXIBLE, IMPERMEABLE SHEET FORMED WITH A CENTRAL PORTION, AN ENDLESS TROUGH OF SUBSTANTIALLY UNIFORM CROSS-SECTIONAL SIZE AND SHAPE SURROUNDING SAID CENTRAL PORTION AND EXTENDING TOWARD THE BOTTOM OF SAID PAN, AN ENDLESS RIDGE OF SUBSTANTIALLY UNIFORM CROSS-SECTIONAL SIZE AND SHAPE SURROUNDING SAID TROUGH AND EXTENDING AWAY FROM SAID BOTTOM; THE ANNULAR PORTION OF SAID MEMBRANE BEING FORMED SUBSTANTIALLY IN THE OUTLINE OF THE LIP OF SAID PAN, SAID ANNULAR PORTION BEING BONDED TO SAID LIP.
Claim 2
Dependent Claim
120 words
AN IMPROVED GAS METER DIAPHRAGM ASSEMBLY COMPRISING A PAN HAVING A BOTTOM AND A SIDE WALL EXTENDING UPWARDLY FOR A DISTANCE FROM SAID BOTTOM AT AN ANGLE THERETO, THENCE TURNING OUTWARDLY AND DOWNWARDLY AND TERMINATING IN AN ANNULAR LIP; AND A DIAPHRAGM MEMBRANE COMPRISING A FLEXIBLE, IMPERMEABLE SHEET FORMED WITH A CENTRAL PORTION, AN ENDLESS TROUGH OF SUBSTANTIALLY UNIFORM CROSS-SECTIONAL SIZE AND SHAPE SURROUNDING SAID CENTRAL PORTION AND EXTENDING TOWARD THE BOTTOM OF SAID PAN, AN ENDLESS RIDGE OF SUBSTANTIALLY UNIFORM CROSS-SECTIONAL SIZE AND SHAPE SURROUNDING SAID TROUGH AND EXTENDING AWAY FROM SAID BOTTOM; THE ANNULAR PORTION OF SAID MEMBRANE BEING FORMED SUBSTANTIALLY IN THE OUTLINE OF THE LIP OF SAID PAN, SAID ANNULAR PORTION BEING BONDED TO SAID LIP.
References Cited (Backward Citations)
US2002870A
Cited
US2078835A
Cited
US2578730A
Cited
US2809521A
Cited
US2874569A
Cited
US3090079A
Cited
US2976726A
Cited
GB933764A
Cited
US3072150A
Cited
US3113592A
Cited
US3079642A
Cited
US3180145A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-04-17 | 1970-10-17 | 1971-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-17 | 1974-10-17 | 1975-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-17 | 1978-10-17 | 1979-04-18 | $7700.00 | Window Closed / Lapsed |