EP0061922A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Method, and system, for spraying
Assignee: BL Technology Ltd
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Filing: 1982-03-29
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Granted: —
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Expires: 2002-03-29
Abstract
Abstract A method of, and system for, spraying is provided in which voltages generated by the passage of pressurised medium through a spray nozzle is monitored. The generated voltage has characteristic patterns. Monitoring the variations in these patterns or the exceeding of predetermined voltage limits enable close control to be monitored over the spraying operation and for remedial action to be taken in due time.
Inventors
- 👤 Francis Raymond Piper
- 👤 David James Bray
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 20:48
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/56; G01F1/64; B; B05; B05B; B05B12/00; B05B12/004; B05B12/006; B05B12/08; B05B12/085; B05B15/00; B05B15/50
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
87 words
A method of spraying a pressurised medium in a controlled pattern from a jet incorporated in a spray unit characterised by the steps of: (i) incorporating the jet in a body (14) of electrically conducting material; (ii) insulating the body (14) from the remainder of the spray unit (12); (iii) coupling the body (14) to a voltage monitoring means (17); (iv) detecting the voltage on the body (14); (v) comparing the detected voltage with at least one predetermined value thereof characterising a desired or optimum spray pattern.
Claim 2
Independent Claim
87 words
A method of spraying a pressurised medium in a controlled pattern from a jet incorporated in a spray unit characterised by the steps of: (i) incorporating the jet in a body (14) of electrically conducting material; (ii) insulating the body (14) from the remainder of the spray unit (12); (iii) coupling the body (14) to a voltage monitoring means (17); (iv) detecting the voltage on the body (14); (v) comparing the detected voltage with at least one predetermined value thereof characterising a desired or optimum spray pattern.
Claim 3
Dependent Claim
40 words
A method as claimed in claim 1 characterised by the further step of adjusting or clearing (23) jet (14) when the comparison step reveals an excessive discrepancy between the detected and the, or a, predetermined value (102, 103, 104, 105).
Claim 4
Dependent Claim
28 words
A method as claimed in Claim 1 or Claim 2 characterised by the additional step of regulating (25) the supply of pressurised medium independence on the detected voltage.
Claim 5
Dependent Claim
125 words
A spraying system for a medium in which a jet incorporated in a jet body is coupled by a feed line to a pump for pressurising medium in the feed line on the upstream side of the jet is characterised in that: (i) the jet body (14) is of electrically conducting material which is coupled to, but electrically isolated from, the feed line (13); (ii) a voltage monitor (17) is connected to sense voltage on the jet body (14); (iii)a generating device (19, 20) is provided to establish one or more reference signals representative of an optimum spray pattern; and (iv) a comparative (17) is provided to enable the reference voltage or voltages to be compared with the voltage detected on the jet body (14).
Claim 6
Dependent Claim
125 words
A spraying system for a medium in which a jet incorporated in a jet body is coupled by a feed line to a pump for pressurising medium in the feed line on the upstream side of the jet is characterised in that: (i) the jet body (14) is of electrically conducting material which is coupled to, but electrically isolated from, the feed line (13); (ii) a voltage monitor (17) is connected to sense voltage on the jet body (14); (iii)a generating device (19, 20) is provided to establish one or more reference signals representative of an optimum spray pattern; and (iv) a comparative (17) is provided to enable the reference voltage or voltages to be compared with the voltage detected on the jet body (14).
Claim 7
Dependent Claim
33 words
A system as claimed in Claim 4 characterised by a control (25-) for the pump (11) to enable the pump to be regulated in response to an output of the voltage monitor (17).
Claim 8
Dependent Claim
71 words
A system as claimed in Claim 5 characterised in that the feed line (13) incorporates a pressure sensor (18) for detecting instantaneous pressure in medium in the feed line (13) and the sensor (18) is adapted to provide control signals to regulate the operation of the system in the event that the pressure lies outside predetermined limits (102, 103, 104, 105) and/or a transient pressure pulse period exceeds a predetermined period.
Claim 9
Dependent Claim
34 words
A system as claimed in Claim 6 characterised in that the comparator (17) is adapted to receive signals from the pressure sensor (18) for comparison with predetermined pressure control limits (102, 103, 104, 105).
References Cited (Backward Citations)
No citation records indexed.
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