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US4549853A
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US
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Positive displacement pump output monitor
Assignee: Olin Corp
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Filing: 1984-04-02
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Granted: 1985-10-29
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Expires: 2004-04-02
Abstract
Abstract Disclosed is a positive displacement pump output monitor which is employed by (a) passing the discharged fluid from said pump through a pulse receiving chamber, the pressure of said pumped fluid during the discharge stroke of the pump causing a diaphragm in said pulse receiving chamber to be moved outwardly by said fluid; (b) causing the outward concurrent movement of a spring-loaded metal shaft when the diaphragm is moved outwardly; (c) contacting a fixed element with said outwardly moved spring-loaded shaft, thereby causing a time-delayed relay connected to said fixed element to be reset; and (d) causing said time-delayed relay to send an alarm signal to an alarm annunciation means if said relay is not reset within a predetermined amount of time.
Inventors
- 👤 Kenneth E. Gasper
- 👤 Raymond G. Ehrhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:14
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/72; F; F04; F04B; F04B49/00; F04B49/10; F04B49/106
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
181 words
An output monitor positioned on the fluid discharge line of a positive displacement pump comprising a pulse receiving chamber attached to said discharge line of said positive displacement pump and through which the pumped fluid passes through, a portion of said pulse receiving chamber comprising a diaphragm capable of moving outward from the fluid in response to the increased pressure of the fluid during the discharge stroke of said pump; a spring-loaded shaft in communication with said diaphragm and which moves outward concurrently with the movement of the diaphragm; a fixed element which is contacted by said spring-loaded metal shaft when said diaphragm is moved outward by the increased pressure of the fluid during the discharge stroke of the pump; a time-delayed powered relay connected to said fixed element and when contact is made between said spring-loaded shaft and said fixed element, an electric current is passed to said time-delayed relay to said relay; and said time-delayed relay capable of sending an alarm signal to an alarm annunciation means if said relay is not reset within a predetermined amount of time.
Claim 2
Dependent Claim
181 words
An output monitor positioned on the fluid discharge line of a positive displacement pump comprising a pulse receiving chamber attached to said discharge line of said positive displacement pump and through which the pumped fluid passes through, a portion of said pulse receiving chamber comprising a diaphragm capable of moving outward from the fluid in response to the increased pressure of the fluid during the discharge stroke of said pump; a spring-loaded shaft in communication with said diaphragm and which moves outward concurrently with the movement of the diaphragm; a fixed element which is contacted by said spring-loaded metal shaft when said diaphragm is moved outward by the increased pressure of the fluid during the discharge stroke of the pump; a time-delayed powered relay connected to said fixed element and when contact is made between said spring-loaded shaft and said fixed element, an electric current is passed to said time-delayed relay to said relay; and said time-delayed relay capable of sending an alarm signal to an alarm annunciation means if said relay is not reset within a predetermined amount of time.
Claim 3
Dependent Claim
12 words
The monitor of claim 1 wherein said diaphragm is made of polytetrafluoroethylene.
Claim 4
Dependent Claim
27 words
The monitor of claim 1 wherein said fixed element is a microswitch which initiates said electric current to said time-delayed relay when contacted by said spring-loaded shaft.
Claim 5
Dependent Claim
24 words
The monitor of claim 1 wherein said spring-loaded shaft and fixed element are both made of a metal capable of conducting an electrical current.
Claim 6
Dependent Claim
14 words
The monitor of claim 4 wherein said spring-loaded shaft is connected to time-delayed relay.
Claim 7
Independent Claim
133 words
A method for monitoring the output of a positive displacement pump comprising: (a) passing the discharged fluid from a positive displacement pump through a pulse receiving chamber positioned on the fluid discharge line of said pump, the pressure of said pumped fluid during the discharge stroke of the pump causing a diaphragm in said pulse receiving chamber to be moved outwardly by said fluid; (b) causing the outward concurrent movement of a spring-loaded metal shaft when the diaphragm is moved outwardly; (c) contacting a fixed element with said outwardly moved spring-loaded shaft, thereby causing a time-delayed relay connected to said fixed element to be reset; and (d) causing said time-delayed relay to send an alarm signal to an alarm annunciation means if said relay is not reset within a predetermined amount of time.
Claim 8
Independent Claim
133 words
A method for monitoring the output of a positive displacement pump comprising: (a) passing the discharged fluid from a positive displacement pump through a pulse receiving chamber positioned on the fluid discharge line of said pump, the pressure of said pumped fluid during the discharge stroke of the pump causing a diaphragm in said pulse receiving chamber to be moved outwardly by said fluid; (b) causing the outward concurrent movement of a spring-loaded metal shaft when the diaphragm is moved outwardly; (c) contacting a fixed element with said outwardly moved spring-loaded shaft, thereby causing a time-delayed relay connected to said fixed element to be reset; and (d) causing said time-delayed relay to send an alarm signal to an alarm annunciation means if said relay is not reset within a predetermined amount of time.
References Cited (Backward Citations)
US1938327A
Cited
US3042767A
Cited
US3217309A
Cited
US3043929A
Cited
US3050003A
Cited
US3583528A
Cited
US3663829A
Cited
US3748656A
Cited
US3947836A
Cited
JPS5216002A
Cited
CH607655A5
Cited
JPS5436453A
Cited
US4168415A
Cited
US4257748A
Cited
US4359716A
Cited
US4309149A
Cited
US4468170A
Cited
JPS5726290A
Cited
US4385217A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-10-28 | 1989-04-29 | 1989-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-10-28 | 1993-04-29 | 1993-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-10-28 | 1997-04-29 | 1997-10-29 | $7700.00 | Window Closed / Lapsed |