US3895532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure and temperature compensated indicating apparatus for fluid meters
Assignee: Sensus Spectrum LLC
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Filing: 1973-12-10
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Granted: 1975-07-22
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Expires: 1993-12-10
Abstract
Abstract A variable ratio drive transmission having means to vary the output to a counter in accordance with variations in both pressure and temperature is driven by a fluid meter. Variations in pressure in absolute terms are sensed by a pressure responsive element enclosed within an evacuated chamber. A master drive element of a magnetically coupled motion transmitter is located within the chamber and connected for movement with the pressure responsive element and the slave element of the motion transmitter is located outside the chamber and connected to an indicator.
Inventors
- 👤 Dirk C Blakeslee
- 👤 Thomas C Farrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:04
CPC Classifications
G; G01; G01F; G01F15/00; G01F15/02
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
329 words
Apparatus for indicating the volume of fluid flow in a pipeline comprising means adapted to be driven by a fluid meter in a pipeline, a first drive element mounted for rotation about its axis, a second drive element mounted for rotation about its axis to one side of said first drive element and in side-by-side relation thereto, one of said drive elements being a cylinder and the other a cone, a third drive element mounted for rotation about its axis on the other side of said first drive element and in side-by-side relation thereto, one of said last two mentioned drive elements being a cone and the other a cylinder, the axes of rotation of said second and third drive elements being angularly disposed with respect to the axis of rotation of said first element whereby adjacent lengthwise portions of said first and second drive elements are spaced and parallel to each other and adjacent lengthwise portions of said first and third drive elements are spaced and parallel to each other, a first drive ring encircling said second element and in driving contact between said lengthwise portions of said first and second drive elements, a second drIve ring encircling said third drive element and in driving contact between said lengthwise portions of said first and third drive elements, means to adjust the position of one of said rings axially of said first drive member in accordance with variations in the pressure of the fluid in said pipeline, means to adjust the position of the other of said rings axially of said first drive element in accordance with variations in the temperature of the fluid in said pipeline, means drive connecting said second drive element with said first mentioned means and means drive connecting said third drive element with indicating means adapted to indicate a cumulative total volume of fluid flow through said meter, said first drive element being a cylinder and said second and third drive elements being cones.
Claim 2
Dependent Claim
329 words
Apparatus for indicating the volume of fluid flow in a pipeline comprising means adapted to be driven by a fluid meter in a pipeline, a first drive element mounted for rotation about its axis, a second drive element mounted for rotation about its axis to one side of said first drive element and in side-by-side relation thereto, one of said drive elements being a cylinder and the other a cone, a third drive element mounted for rotation about its axis on the other side of said first drive element and in side-by-side relation thereto, one of said last two mentioned drive elements being a cone and the other a cylinder, the axes of rotation of said second and third drive elements being angularly disposed with respect to the axis of rotation of said first element whereby adjacent lengthwise portions of said first and second drive elements are spaced and parallel to each other and adjacent lengthwise portions of said first and third drive elements are spaced and parallel to each other, a first drive ring encircling said second element and in driving contact between said lengthwise portions of said first and second drive elements, a second drIve ring encircling said third drive element and in driving contact between said lengthwise portions of said first and third drive elements, means to adjust the position of one of said rings axially of said first drive member in accordance with variations in the pressure of the fluid in said pipeline, means to adjust the position of the other of said rings axially of said first drive element in accordance with variations in the temperature of the fluid in said pipeline, means drive connecting said second drive element with said first mentioned means and means drive connecting said third drive element with indicating means adapted to indicate a cumulative total volume of fluid flow through said meter, said first drive element being a cylinder and said second and third drive elements being cones.
Claim 3
Dependent Claim
44 words
The apparatus of claim 4 in which the position of said first ring is adjustable in accordance with variation in the pressure of said fluid and the position of said second ring is adjustable in accordance with variations in the temperature of said fluid.
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) | 1978-07-21 | 1979-01-20 | 1979-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-07-21 | 1983-01-20 | 1983-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-07-21 | 1987-01-20 | 1987-07-22 | $7700.00 | Window Closed / Lapsed |