Patent US1870401A successfully refreshed from Google Patents.
US5218554A
Expired / Lapsed
US
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Fluid detection system with solid state inputs
Assignee: Emerson Electric Co
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Filing: 1990-09-25
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Granted: 1993-06-08
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Expires: 2010-09-25
Abstract
Abstract A fluid status detection system includes a controller that has eight sets of sockets for mechanically receiving a solid state input module. The module may be either an one of two A.C. responsive moduled responsive to two different A.C. voltage ranges or a D.C. responsive module. Either module provides the same output, a one-bit-digital signal, to the controller via the sockets. The controller includes a relay, an alarm, and a display. The operator may select one or more indicator conditions individually for each of the socket sets from a plurality of possible indicator alarm conditions and store the conditions in the controller. The controller then responds to the one-bit-digital signals to provide an alarm or other programmed indication that a device, such as a fire alarm, connected to a particular socket set has been activated. The modules respond to a wide range of voltages, thus a wide range of devices may be connected to the controller.
Inventors
- 👤 Laurence S. Slocum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:19
CPC Classifications
G; G01; G01M; G01M3/00; G01M3/02
Claims Analysis
Total Claims: 15
Claim 1
Independent Claim
173 words
A fluid status detection system comprising: (a) a plurality of devices for determining the status of conditions at their locations remote from a controller, each of said devices including means for providing a device signal having a voltage over a range of voltages commonly in use with said fluid detection systems indicative of the status at a device location; and, (a) a controller comprising: (1) an input means receiving said device signal and providing a one-bit digital signal to said controller; (2) a selecting means for permitting an operator to individually select one or more indicator conditions for each of said devices from a plurality of possible indicator alarm conditions; (3) a storage means for storing said indicator conditions; (4) an activation means receiving said one-bit-digital signals form said input means, comparing said one-bit digital signal with said indicator conditions in said storage means and producing a response determined by said indicator condition; and, (5) an indicator means reacting to said activation means response that produces an output indicating said activation means response.
Claim 2
Dependent Claim
173 words
A fluid status detection system comprising: (a) a plurality of devices for determining the status of conditions at their locations remote from a controller, each of said devices including means for providing a device signal having a voltage over a range of voltages commonly in use with said fluid detection systems indicative of the status at a device location; and, (a) a controller comprising: (1) an input means receiving said device signal and providing a one-bit digital signal to said controller; (2) a selecting means for permitting an operator to individually select one or more indicator conditions for each of said devices from a plurality of possible indicator alarm conditions; (3) a storage means for storing said indicator conditions; (4) an activation means receiving said one-bit-digital signals form said input means, comparing said one-bit digital signal with said indicator conditions in said storage means and producing a response determined by said indicator condition; and, (5) an indicator means reacting to said activation means response that produces an output indicating said activation means response.
Claim 3
Dependent Claim
17 words
A fluid status detection system as in claim 1 wherein said plurality of devices includes a probe.
Claim 4
Dependent Claim
18 words
A fluid status detection system as in claim 1 wherein said plurality of devices includes a fire alarm.
Claim 5
Dependent Claim
19 words
A fluid status detection system as in claim 1 wherein said plurality of devices includes a liquid level gauge.
Claim 6
Dependent Claim
23 words
A fluid status detection system as in claim 1 wherein said input means includes: (a) an input module; and, (b) a socket means.
Claim 7
Dependent Claim
34 words
A fluid status detection system as in claim 5 wherein said input module can be selected to produce a one-bit digital signal in response to a device operating within a range of working voltages.
Claim 8
Dependent Claim
28 words
A fluid status detection system as in claim 5 wherein said input module is an A.C. module that converts an A.C. device signal to a one-bit digital signal.
Claim 9
Dependent Claim
27 words
A fluid status detection system as in claim 7 wherein said input module converts a 90 Volt to 140 volt device signal to a one-bit digital signal.
Claim 10
Dependent Claim
27 words
A fluid status detection system as in claim 7 wherein said input module converts a 180 Volt to 280 Volt device signal to a one-bit digital signal.
Claim 11
Dependent Claim
28 words
A fluid status detection system as in claim 5 wherein said input module is a D.C. module that converts a D.C. device signal to a one-bit digital signal.
Claim 12
Dependent Claim
27 words
A fluid status detection system as in claim 10 wherein said input module converts a 3 Volt to 32 Volt device signal to a one-bit digital signal.
Claim 13
Dependent Claim
39 words
A fluid status detection system as in claim 5 wherein said socket means provides for installing an input module to provide compatibility between a variety of devices producing device signals over a range of voltages compatible with a controller.
Claim 14
Dependent Claim
18 words
A fluid status detection system as in claim 1 wherein said indicator means includes one or more delays.
Claim 15
Dependent Claim
17 words
A fluid status detection system as in claim 1 wherein said indicator means includes an audible alarm.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-06-07 | 1996-12-07 | 1997-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-06-07 | 2000-12-07 | 2001-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-06-07 | 2004-12-07 | 2005-06-08 | $7700.00 | Window Closed / Lapsed |