Metal deforming – By use of roller or roller-like tool-element – With modification or control of temperature of work – tool or...
Patent
1988-05-20
1990-06-12
Combs, E. Michael
Metal deforming
By use of roller or roller-like tool-element
With modification or control of temperature of work, tool or...
239 74, 239563, B21B 4502, B05B 116
Patent
active
049322320
ABSTRACT:
A method of detecting spray header valve and nozzle malfunctions, in a spray header including plural nozzles each having its own control valve, by supplying the spray header with liquid at a constant pressure head through a conduit while opening and closing the nozzle valves one at a time, and measuring the flow rate through the conduit each time one of the valves is open and when all the valves are closed. In response to detection of a malfunction at a particular nozzle, the valves of one or more adjacent nozzles are adjusted so that the adjacent-nozzle flow rates compensate for the malfunction, for example to maintain a desired cooling pattern across a surface being cooled by the spray header notwithstanding the malfunction at the particular nozzle.
REFERENCES:
patent: 4247047 (1981-01-01), Schaming
patent: 4262511 (1981-04-01), Boisvert et al.
patent: 4392367 (1983-07-01), Bald
patent: 4467629 (1984-08-01), Schimion
patent: 4510784 (1985-04-01), Hsu
patent: 4637547 (1987-01-01), Hiniker et al.
patent: 4706480 (1987-11-01), Svatos
Ballyns Jeff
Meijer Otto
Powers Herbert R.
Alcan Aluminum Corporation
Combs E. Michael
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