Patent US3122158A successfully refreshed from Google Patents.
US3122158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas meter changing device
Assignee: Individual
•
Filing: 1961-03-10
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Granted: 1964-02-25
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Expires: 1981-03-10
Abstract
No abstract record available.
Inventors
- 👤 Grunsky Charies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:48
CPC Classifications
G; G01; G01F; G01F15/00; G01F15/18; G01F15/185; Y; Y10; Y10T; Y10T137/00; Y10T137/5109; Y10T137/5283; Y10T137/598; Y10T137/612
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
232 words
A DEVICE FOR SUPPLYING GAS TO AN OUTLET PIPE WHILE CHANGING A GAS METER CONNECTED TO THE OUTLET PIPE THROUGH A T, ONE ARM OF THE T BEING NORMALLY CLOSED BY A REMOVABLE PLUG, SAID DEVICE COMPRISING A FLEXIBLE BAG PROVIDED WITH A CIRCULAR OPENING HAVING A RESILIENT RIM ADAPTED TO FIT IN GAS-TIGHT RELATION OVER THE ARM OF THE T CLOSED BY THE PLUG, A TUBULAR PROBE EXTENDING INTO SAID BAG, SAID BAG BEING SEALED IN GAS-TIGHT RELATION TO THE PROBE, TWO ESSENTIALLY IDENTICAL COUPLINGS, A FIRST ONE OF SAID COUPLINGS BEING ATTACHED TO THE OUTER END OF SAID PROBE, AND THE SECOND ONE OF SAID COUPLING BEING ATTACHED TO AND EXTENDING THROUGH THE WALL OF SAID BAG, A FLEXIBLE GAS SUPPLY HOSE ADAPTED FOR CONNECTION TO EITHER OF SAID COUPLINGS, SELECTIVELY, AND MEANS OPERABLE AS A PURGE VALVE ADAPTED TO ENGAGE EITHER OF SAID COUPLINGS, SELECTIVELY, WHEREBY GAS CAN BE SUPPLIED THROUGH EITHER COUPLING SELECTED FOR CONNECTION TO THE GAS SUPPLY HOSE AND AIR PURGED THROUGH THE OTHER, SAID PROBE BEING ADAPTED TO EXTEND THROUGH THE T WHEN THE PLUG IS REMOVED THEREFROM AND INTO THE OPPOSITE ARM OF THE T TO DEFINE WITH THE T TWO SEPARATE FLOW PATHS, ONE PATH EXTENDING THROUGH THE PROBE AND COMMUNICATING WITH THE OPPOSITE ARM AND THE OTHER PATH SURROUNDING THE PROBE AND COMMUNICATING WITH THE BAG AND THE BASE OF THE T.
Claim 2
Independent Claim
232 words
A DEVICE FOR SUPPLYING GAS TO AN OUTLET PIPE WHILE CHANGING A GAS METER CONNECTED TO THE OUTLET PIPE THROUGH A T, ONE ARM OF THE T BEING NORMALLY CLOSED BY A REMOVABLE PLUG, SAID DEVICE COMPRISING A FLEXIBLE BAG PROVIDED WITH A CIRCULAR OPENING HAVING A RESILIENT RIM ADAPTED TO FIT IN GAS-TIGHT RELATION OVER THE ARM OF THE T CLOSED BY THE PLUG, A TUBULAR PROBE EXTENDING INTO SAID BAG, SAID BAG BEING SEALED IN GAS-TIGHT RELATION TO THE PROBE, TWO ESSENTIALLY IDENTICAL COUPLINGS, A FIRST ONE OF SAID COUPLINGS BEING ATTACHED TO THE OUTER END OF SAID PROBE, AND THE SECOND ONE OF SAID COUPLING BEING ATTACHED TO AND EXTENDING THROUGH THE WALL OF SAID BAG, A FLEXIBLE GAS SUPPLY HOSE ADAPTED FOR CONNECTION TO EITHER OF SAID COUPLINGS, SELECTIVELY, AND MEANS OPERABLE AS A PURGE VALVE ADAPTED TO ENGAGE EITHER OF SAID COUPLINGS, SELECTIVELY, WHEREBY GAS CAN BE SUPPLIED THROUGH EITHER COUPLING SELECTED FOR CONNECTION TO THE GAS SUPPLY HOSE AND AIR PURGED THROUGH THE OTHER, SAID PROBE BEING ADAPTED TO EXTEND THROUGH THE T WHEN THE PLUG IS REMOVED THEREFROM AND INTO THE OPPOSITE ARM OF THE T TO DEFINE WITH THE T TWO SEPARATE FLOW PATHS, ONE PATH EXTENDING THROUGH THE PROBE AND COMMUNICATING WITH THE OPPOSITE ARM AND THE OTHER PATH SURROUNDING THE PROBE AND COMMUNICATING WITH THE BAG AND THE BASE OF THE T.
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) | 1967-02-24 | 1967-08-26 | 1968-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-24 | 1971-08-26 | 1972-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-24 | 1975-08-26 | 1976-02-25 | $7700.00 | Window Closed / Lapsed |