US3224247A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Proving flowmeters
Assignee: Shell USA Inc
•
Filing: 1961-08-11
•
Granted: 1965-12-21
•
Expires: 1981-08-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Maurice L Barrett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:23
CPC Classifications
G; G01; G01F; G01F25/00; G01F25/10; G01F25/11; Y; Y10; Y10T; Y10T137/00; Y10T137/4891
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
AN APPARATUS FOR CALIBRATING OR PROVING LIQUID FLOWMETERS OF THE INDICATING TYPE LOCATED IN A PIPE LINE, WHICH COMPRISES A CONTINUOUS LOOP FORMING AN INTEGRAL PART OF SAID PIPE LINE FOR THE CONTINUOUS AND UNINTERRUPTED FLOW OF LIQUID THROUGH THE LOOP, SAID PIPE LINE LOOP INCLUDING TWO SUBSTANTIALLY VERTICALLY DISPLACED PARTS, SUBSTANTIALLY VERTICAL BY-PASS CONDUIT MEANS INTERCONNECTING SAID VERTICALLY DISPLACED PARTS, PLUG MEANS MOVABLE THROUGH SAID PIPE LINE LOOP IN SEALING ENGAGEMENT THEREWITH AND THROUGH SAID BY-PASS CONDUIT MEANS, FLOW-CONTROL MEANS IN SAID BY-PASS CONDUIT MEANS FOR CONTROLLING THE PASSAGE OF SAID PLUG MEANS THROUGH SAID BY-PASS CONDUIT MEANS AND PERMITTING PASSAGE THERETHROUGH FROM SAID UPPER PART TO SAID LOWER PART WHILE OBSTRUCTING THE FLOW OF LIQUID IN THE OPPOSITE DIRECTION, WHEREBY SAID PLUG MEANS CAN BE CONTROLLABLY TRANSFERRED FROM SAID UPPER PART TO SAID LOWER PART WITHOUT INTERRUPTING THE FLOW OF LIQUID THROUGH SAID PIPE LINE LOOP, AND A PAIR OF SENSING MEANS DISPOSED IN SAID PIPE LINE LOOP IN SPACED RELATION, WHEREBY THE TRAVEL OF THE PLUG MEANS PAST SENSING MEANS WILL BE INDICATED.
Claim 2
Independent Claim
176 words
AN APPARATUS FOR CALIBRATING OR PROVING LIQUID FLOWMETERS OF THE INDICATING TYPE LOCATED IN A PIPE LINE, WHICH COMPRISES A CONTINUOUS LOOP FORMING AN INTEGRAL PART OF SAID PIPE LINE FOR THE CONTINUOUS AND UNINTERRUPTED FLOW OF LIQUID THROUGH THE LOOP, SAID PIPE LINE LOOP INCLUDING TWO SUBSTANTIALLY VERTICALLY DISPLACED PARTS, SUBSTANTIALLY VERTICAL BY-PASS CONDUIT MEANS INTERCONNECTING SAID VERTICALLY DISPLACED PARTS, PLUG MEANS MOVABLE THROUGH SAID PIPE LINE LOOP IN SEALING ENGAGEMENT THEREWITH AND THROUGH SAID BY-PASS CONDUIT MEANS, FLOW-CONTROL MEANS IN SAID BY-PASS CONDUIT MEANS FOR CONTROLLING THE PASSAGE OF SAID PLUG MEANS THROUGH SAID BY-PASS CONDUIT MEANS AND PERMITTING PASSAGE THERETHROUGH FROM SAID UPPER PART TO SAID LOWER PART WHILE OBSTRUCTING THE FLOW OF LIQUID IN THE OPPOSITE DIRECTION, WHEREBY SAID PLUG MEANS CAN BE CONTROLLABLY TRANSFERRED FROM SAID UPPER PART TO SAID LOWER PART WITHOUT INTERRUPTING THE FLOW OF LIQUID THROUGH SAID PIPE LINE LOOP, AND A PAIR OF SENSING MEANS DISPOSED IN SAID PIPE LINE LOOP IN SPACED RELATION, WHEREBY THE TRAVEL OF THE PLUG MEANS PAST SENSING MEANS WILL BE INDICATED.
References Cited (Backward Citations)
GB189408950A
Cited
US914824A
Cited
US973794A
Cited
US2705576A
Cited
US2786219A
Cited
US2796878A
Cited
US2772561A
Cited
US2948144A
Cited
US2953157A
Cited
US2977616A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |