Patent US4138608A successfully refreshed from Google Patents.
US4138608A
Expired / Lapsed
US
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Remote readout meter reading system
Assignee: Romac Industries Inc
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Filing: 1977-06-20
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Granted: 1979-02-06
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Expires: 1997-06-20
Abstract
Abstract An electronic remote reading system for a meter is disclosed, consisting of a permanent magnet on a shaft, rotating in proportion to volume passing through the meter. A switch, sensitive to a magnetic field, mounted on the outside of the meter in the influence of the magnetic field, a low current consumption circuit connecting the switch to a remotely located counter, powered by an energy source, such as alkaline batteries or a solar panel. The circuit is connected in such a manner that the power consumed is of such a small magnitude that the alkaline batteries have a life essentially equal to their shelf life. The solar panel is of a physical size to be mounted directly as part of the counter housing.
Inventors
- 👤 Richard D. Brugger
- 👤 Joseph A. Barna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:30
CPC Classifications
G; G01; G01D; G01D4/00; G01D4/008; G01F; G01F15/00; G01F15/06; G01F15/061; G01F15/063; Y; Y02; Y02B; Y02B70/00; Y02B70/30; Y02B70/34; Y02B90/00; Y02B90/20; Y04; Y04S; Y04S20/00; Y04S20/30
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
167 words
A method of metering the flow of a product in a line and indicating the quantity of said flow by a counter 37 at a location remote from said meter comprising, connecting a meter 40 with an electrical contact on it to a flow line carrying said product, providing a counter at said remote location, connecting an electrical circuit to said counter through an electronic valve having a control element on it connected through a pulse forming circuit to said contact, using the transition of said contact from open to closed thereby charging a first capacitive means and discharging a second capacitive means to generate an electrical pulse of relatively short time duration of less than a maximum time in said pulse forming circuit for each increment of said product flowing through said line, thereby causing said electronic valve to conduct electricity during the time of said electrical pulses only, thereby counting said pulses whereby the quantity of each of said increments of said product is counted.
Claim 2
Independent Claim
167 words
A method of metering the flow of a product in a line and indicating the quantity of said flow by a counter 37 at a location remote from said meter comprising, connecting a meter 40 with an electrical contact on it to a flow line carrying said product, providing a counter at said remote location, connecting an electrical circuit to said counter through an electronic valve having a control element on it connected through a pulse forming circuit to said contact, using the transition of said contact from open to closed thereby charging a first capacitive means and discharging a second capacitive means to generate an electrical pulse of relatively short time duration of less than a maximum time in said pulse forming circuit for each increment of said product flowing through said line, thereby causing said electronic valve to conduct electricity during the time of said electrical pulses only, thereby counting said pulses whereby the quantity of each of said increments of said product is counted.
Claim 3
Dependent Claim
18 words
The method recited in claim 1 wherein said first capacitive means and said second capacitive means are condensers.
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) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |