Patent US4459695A successfully refreshed from Google Patents.
US4459695A
Expired / Lapsed
US
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Fault finding in an industrial installation by means of a computer
Assignee: Davy Mckee Sheffield Ltd
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Filing: 1982-03-09
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Granted: 1984-07-10
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Expires: 2002-03-09
Abstract
Abstract In a complex industrial installation, it is usually very difficult to locate the position of a fault when one occurs. In a method of determining the location of a fault, information corresponding to each component part of the installation and the correct operating parameters of each component part is stored in a memory and a computer is used to produce on a visual display unit schematic diagrams of at least part of the installation and indicates tests which are to be carried out, the operator causes the test results to be supplied to the computer and, after comparing the results with the stored information, the computer indicates on the display either where the fault lies or further schematic diagrams and tests which are to be carried out to locate where the fault lies. Apparatus for carrying out the fault location is also described.
Inventors
- 👤 David J. Barratt
- 👤 John P. Russell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:39
CPC Classifications
G; G05; G05B; G05B23/00; G05B23/02; G05B23/0205; G05B23/0259; G05B23/0275; G05B23/0278
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
183 words
A method of determining the location of a fault in an industrial installation in which prior to the fault occurring in the installation, information corresponding to each component part of the installation, including a block diagram thereof, and the correct operating parameters of each component part are stored in a memory device; subsequent to the fault occurring in the installation, the operator causes a computer to produce on a visual display unit a block diagram of at least part of the installation and to indicate tests which are to be carried out; the operator conducts the indicated tests on said part of the installation without removing said part of the installation from the industrial installation, the operator obtains results of said indicated tests and introduces the results into the computer; the computer compares said results with the corresponding stored information and, as a result of the comparison, indicates on the display device either the component in which the fault lies or further block diagrams and indicated tests which are to be carried out systematically to locate the component in which the fault lies.
Claim 2
Independent Claim
183 words
A method of determining the location of a fault in an industrial installation in which prior to the fault occurring in the installation, information corresponding to each component part of the installation, including a block diagram thereof, and the correct operating parameters of each component part are stored in a memory device; subsequent to the fault occurring in the installation, the operator causes a computer to produce on a visual display unit a block diagram of at least part of the installation and to indicate tests which are to be carried out; the operator conducts the indicated tests on said part of the installation without removing said part of the installation from the industrial installation, the operator obtains results of said indicated tests and introduces the results into the computer; the computer compares said results with the corresponding stored information and, as a result of the comparison, indicates on the display device either the component in which the fault lies or further block diagrams and indicated tests which are to be carried out systematically to locate the component in which the fault lies.
Claim 3
Dependent Claim
31 words
A method as claimed in claim 1, in which the schematic diagrams indicate test points on the installation where checks are to be made and the information supplied to the computer.
Claim 4
Dependent Claim
24 words
A method as claimed in claim 2, in which at least some of the checks are made at points continuously monitored by the computer.
Claim 5
Dependent Claim
30 words
A method as claimed in claim 2, in which at least some of the checks are made by the operator and information is introduced by the operator into the computer.
Claim 6
Dependent Claim
27 words
A method as claimed in claim 1, in which the schematic diagrams of various components indicate whether the components are of mainly electrical, mechanical or hydraulic form.
Claim 7
Dependent Claim
23 words
A method as claimed in claim 5, in which electrical, mechanical and hydraulic components are indicated on the schematic diagrams in different colours.
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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) | 1987-07-10 | 1988-01-09 | 1988-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-10 | 1992-01-09 | 1992-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-10 | 1996-01-09 | 1996-07-10 | $7700.00 | Window Closed / Lapsed |