US3720106A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid meter
Assignee: Individual
•
Filing: 1971-02-16
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Granted: 1973-03-13
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Expires: 1991-02-16
Abstract
Abstract A fluid meter comprising a casing, a measuring chamber unit defining a measuring chamber mounted in said casing, fluid inlet and outlet ports communicating with said measuring chamber, a piston assembly mounted for movement in said chamber upon flow of fluid therethrough, indicator means operatively connected to said piston assembly to indicate at least rate of flow through said measuring chamber, means defining an opening in said casing for assembly of said measuring chamber unit therein, a bottom cover member including a seal detachably secured over said opening, said casing including a circumferentially extending rib spaced inwardly from the outer edge defining said opening, said edge projecting beyond said rib to provide in the assembled relation contact between said cover and edge and engagement of said rib with said seal, and said casing constructed without internal protuberances thereby allowing unobstructed fluid flow about the measuring chamber and wherein the centerline of the inlet and outlet ports are aligned with a plane through the center of the measuring chamber to minimize pressure drop across the fluid meter.
Inventors
- 👤 A Varga
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:07
CPC Classifications
G; G01; G01F; G01F3/00; G01F3/02; G01F3/04; G01F3/06; G01F3/12; G01F15/00; G01F15/06; G01F15/061; G01F15/063
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
178 words
A fluid meter comprising a casing, a measuring chamber unit defining a measuring chamber mounted in said casing, fluid inlet and outlet ports communicating with said measuring chamber, an actuator assembly mounted for movement in said measuring chamber upon flow of fluid therethrough, indicator means operatively connected to said actuator assembly to indicate at least rate of flow through said measuring chamber, means defining an opening in said casing for assembly of said measuring unit therethrough, said casing including a circumferentially extending rib spaced radially inwardly from the portion of the casing defining said opening and defining an annular groove therebetween, a bottom cover member including a liner seal adapted to be secured over said opening, said casing portion and rib lying in planes spaced apart less than the thickness of said liner seal whereby said bottom cover abuts said portion of the casing and said rib engages the resilient liner seal to form a pressure tight seal therewith when the parts are assembled, the outer peripheral edge portion of said liner seal engaging in said annular groove.
Claim 2
Dependent Claim
178 words
A fluid meter comprising a casing, a measuring chamber unit defining a measuring chamber mounted in said casing, fluid inlet and outlet ports communicating with said measuring chamber, an actuator assembly mounted for movement in said measuring chamber upon flow of fluid therethrough, indicator means operatively connected to said actuator assembly to indicate at least rate of flow through said measuring chamber, means defining an opening in said casing for assembly of said measuring unit therethrough, said casing including a circumferentially extending rib spaced radially inwardly from the portion of the casing defining said opening and defining an annular groove therebetween, a bottom cover member including a liner seal adapted to be secured over said opening, said casing portion and rib lying in planes spaced apart less than the thickness of said liner seal whereby said bottom cover abuts said portion of the casing and said rib engages the resilient liner seal to form a pressure tight seal therewith when the parts are assembled, the outer peripheral edge portion of said liner seal engaging in said annular groove.
Claim 3
Dependent Claim
178 words
A fluid meter comprising a casing, a measuring chamber unit defining a measuring chamber mounted in said casing, fluid inlet and outlet ports communicating with said measuring chamber, an actuator assembly mounted for movement in said measuring chamber upon flow of fluid therethrough, indicator means operatively connected to said actuator assembly to indicate at least rate of flow through said measuring chamber, means defining an opening in said casing for assembly of said measuring unit therethrough, said casing including a circumferentially extending rib spaced radially inwardly from the portion of the casing defining said opening and defining an annular groove therebetween, a bottom cover member including a liner seal adapted to be secured over said opening, said casing portion and rib lying in planes spaced apart less than the thickness of said liner seal whereby said bottom cover abuts said portion of the casing and said rib engages the resilient liner seal to form a pressure tight seal therewith when the parts are assembled, the outer peripheral edge portion of said liner seal engaging in said annular groove.
Claim 4
Dependent Claim
178 words
A fluid meter comprising a casing, a measuring chamber unit defining a measuring chamber mounted in said casing, fluid inlet and outlet ports communicating with said measuring chamber, an actuator assembly mounted for movement in said measuring chamber upon flow of fluid therethrough, indicator means operatively connected to said actuator assembly to indicate at least rate of flow through said measuring chamber, means defining an opening in said casing for assembly of said measuring unit therethrough, said casing including a circumferentially extending rib spaced radially inwardly from the portion of the casing defining said opening and defining an annular groove therebetween, a bottom cover member including a liner seal adapted to be secured over said opening, said casing portion and rib lying in planes spaced apart less than the thickness of said liner seal whereby said bottom cover abuts said portion of the casing and said rib engages the resilient liner seal to form a pressure tight seal therewith when the parts are assembled, the outer peripheral edge portion of said liner seal engaging in said annular groove.
Claim 5
Dependent Claim
26 words
A fluid meter as claimed in claim 1 wherein the indicator means is magnetically driven by a meter magnet which is retained by a magnetic shield.
Claim 6
Dependent Claim
26 words
A fluid meter as claimed in claim 1 wherein the centerline of the inlet and outlet ports lies in the center plane of the measuring chamber.
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) | 1976-03-12 | 1976-09-11 | 1977-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-12 | 1980-09-11 | 1981-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-12 | 1984-09-11 | 1985-03-13 | $7700.00 | Window Closed / Lapsed |