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Patent US3882724A successfully refreshed from Google Patents.
US3882724A
Expired / Lapsed
US
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Flowmeter
Assignee: Individual
•
Filing: 1973-05-04
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Granted: 1975-05-13
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Expires: 1993-05-04
Abstract
Abstract A meter for measuring the flow of liquid under gravity consists of an outer supply chamber which surrounds an inner chamber the bottom of which is open to atmosphere; the wall of the inner chamber has a proportional weir and a scale on the outer chamber indicates the flow through the meter at levels which correspond with the level of liquid in the outer chamber.
Inventors
- 👤 William Rouse Hearn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:46
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A gravity feed meter to measure the flow of liquid material from a supply comprising a first chamber having a vertically disposed wall, a first proportional weir in said wall, a second chamber surrounding first chamber in spaced apart relationship, the lower end of one of the said chambers being connected to said supply, said one chamber having an opening to atmosphere with said liquid material flowing upward therein, through said weir into and downward by gravity out to the other chamber, a vertically disposed scale on one of said chambers, said wier being calibrated to deliver predetermined amounts of liquid material at a predetermined temperature at levels indicated on said scale; a second proportional weir below said first proportional weir in said wall of said first chamber, the top of said second proportional weir communicating with the bottom of said first proportional weir, said second proportional weir facilitating the reading of smaller amounts of liquid material than that passing through the first proportional weir.
Claim 2
Dependent Claim
165 words
A gravity feed meter to measure the flow of liquid material from a supply comprising a first chamber having a vertically disposed wall, a first proportional weir in said wall, a second chamber surrounding first chamber in spaced apart relationship, the lower end of one of the said chambers being connected to said supply, said one chamber having an opening to atmosphere with said liquid material flowing upward therein, through said weir into and downward by gravity out to the other chamber, a vertically disposed scale on one of said chambers, said wier being calibrated to deliver predetermined amounts of liquid material at a predetermined temperature at levels indicated on said scale; a second proportional weir below said first proportional weir in said wall of said first chamber, the top of said second proportional weir communicating with the bottom of said first proportional weir, said second proportional weir facilitating the reading of smaller amounts of liquid material than that passing through the first proportional weir.
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) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |