US3810562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flowmeter
Assignee: Individual
•
Filing: 1972-10-13
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Granted: 1974-05-14
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Expires: 1992-10-13
Abstract
Abstract A meter for measuring the amount of fluid flowing through a conduit from a source of supply to a delivery point. A rotary impeller driven by the flow of fluid through the meter, an indicator shaft driven through a reduction gearing by the impeller and a cut-off valve functioning to stop the flow of fluid after the pre-set amount of fluid or the amount of fluid represented by a pre-set price on the indicator has been reached, the valve being a reciprocating spring actuated valve operated by a cam disc on the indicator shaft and an automatically operated clutch means on the indicator shaft to render the cam disc inoperative and hold the valve open for free unmetered flow of the fluid through the device when desired.
Inventors
- 👤 R Clarke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:33
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F15/00; G01F15/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
376 words
A device for predetermining the quantity of fluid flowing through a pipe line comprising: a. a casing having fluid inlet and outlet openings for flow of fluid therethrough, b. a fluid motor within the casing driven by the flow of fluid, c. a rotary driven member journalled in the casing and coupled to the fluid motor and driven thereby, d. a shaft journalled in said casing in coaxial relationship and said rotary driven member and automatically axially shiftable in said casing, e. a clutch between said shaft and said rotary driven member, said clutch being automatically engageable and disengageable by axially shifting said shaft, f. said shaft extending through one side of the casing and a knob positioned on the outer end thereof for manually rotating the said shaft, g. a cam fixedly secured on the inner end of said shaft, said cam having a substantially broad circular outer face parallel to the axis of the shaft wherein the face is provided with a recess within a small area of said face having tapered side walls, h. a valve operating member having one end connected to said valve and its opposite end adapted to bear against the outer surface of the said cam face including means for resiliently holding the said end of the member in contact with the cam face for moving said valve to open position when the valve operating member is positioned against the outer circular face of the cam, and for closing the valve when the valve operating member moves into the said recess, i. a second cam member fixed to the casing opposite the inner end of the first cam, means extending downwardly from the inner surface of the first cam for engaging the second cam for raising the shaft for moving the clutch elements out of engagement when the shaft is manually rotated to a predetermined location to prevent further rotation of the shaft by said motor, the location of the second cam being such as to place the valve operating member on the outer circular surface of the first cam member when the shaft Pg,11 is rotated to the said predetermined position for holding the said valve in open position for the continuous flow of fluid through the device.
Claim 2
Independent Claim
376 words
A device for predetermining the quantity of fluid flowing through a pipe line comprising: a. a casing having fluid inlet and outlet openings for flow of fluid therethrough, b. a fluid motor within the casing driven by the flow of fluid, c. a rotary driven member journalled in the casing and coupled to the fluid motor and driven thereby, d. a shaft journalled in said casing in coaxial relationship and said rotary driven member and automatically axially shiftable in said casing, e. a clutch between said shaft and said rotary driven member, said clutch being automatically engageable and disengageable by axially shifting said shaft, f. said shaft extending through one side of the casing and a knob positioned on the outer end thereof for manually rotating the said shaft, g. a cam fixedly secured on the inner end of said shaft, said cam having a substantially broad circular outer face parallel to the axis of the shaft wherein the face is provided with a recess within a small area of said face having tapered side walls, h. a valve operating member having one end connected to said valve and its opposite end adapted to bear against the outer surface of the said cam face including means for resiliently holding the said end of the member in contact with the cam face for moving said valve to open position when the valve operating member is positioned against the outer circular face of the cam, and for closing the valve when the valve operating member moves into the said recess, i. a second cam member fixed to the casing opposite the inner end of the first cam, means extending downwardly from the inner surface of the first cam for engaging the second cam for raising the shaft for moving the clutch elements out of engagement when the shaft is manually rotated to a predetermined location to prevent further rotation of the shaft by said motor, the location of the second cam being such as to place the valve operating member on the outer circular surface of the first cam member when the shaft Pg,11 is rotated to the said predetermined position for holding the said valve in open position for the continuous flow of fluid through the device.
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) | 1977-05-13 | 1977-11-12 | 1978-05-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-13 | 1981-11-12 | 1982-05-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-13 | 1985-11-12 | 1986-05-14 | $7700.00 | Window Closed / Lapsed |