Communications: electrical – Condition responsive indicating system – Specific condition
Patent
1988-05-19
1990-06-05
Orsino, Joseph A.
Communications: electrical
Condition responsive indicating system
Specific condition
7386174, 116273, 200 819R, G08B 2100
Patent
active
049317768
ABSTRACT:
A flow sensor for regulating the air flow rate to a cooling system can be formed as a housing for channeling the flow through a retangular cavity and a one piece vane of bent metal strip which deflects and closes an electrical contact at a predetermined air flow rate and opens when the air flow rate falls below a preset threshold level.
REFERENCES:
patent: 827698 (1906-08-01), Adams
patent: 2952753 (1960-09-01), Kmiecik et al.
patent: 3065316 (1962-11-01), Olson
patent: 4136330 (1979-01-01), Estaque
patent: 4282413 (1981-08-01), Simons et al.
patent: 4729244 (1988-03-01), Furuse
European Search Report, 23-08-1989-EP89304947.8.
Hertel Richard J.
Klos Leo V.
Cole Stanley Z.
Dooher Terrence E.
Fisher Gerald M.
Jackson Jill
Orsino Joseph A.
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