Electricity: circuit makers and breakers – Special application – Pneumatic tire inflation responsive
Patent
1978-12-29
1981-03-03
Truhe, J. V.
Electricity: circuit makers and breakers
Special application
Pneumatic tire inflation responsive
731468, 337120, H01H 3524
Patent
active
042543126
ABSTRACT:
A device for filling a pneumatic tire and sensing the air pressure therein has a check valve disposed within a valve stem and a pressure sensing switch which is temperature compensated to adjust for air pressure changes within the tire due to changes in ambient temperature. Substantially perfect compensation can be achieved, within a limited range of operation, whereby the set point pressure versus temperature characteristic will track with the related tire pressure versus temperature characteristic. A manual set point adjustment feature is provided whereby the switch can be calibrated after it is assembled within a wheel and pneumatic tire. The switch can also be employed independently of, as well as in conjunction with, the check valve.
REFERENCES:
patent: 3487348 (1969-12-01), Linsalato
patent: 3743801 (1973-07-01), Brobeck et al.
patent: 3889077 (1975-06-01), Hayashi
patent: 3908105 (1975-09-01), Schuler
patent: 4117281 (1978-09-01), Leimbach
patent: 4177671 (1979-12-01), Ichihara et al.
patent: 4181831 (1980-11-01), Mayer et al.
Brown James M.
Migrin Robert S.
Eaton Corporation
Ginsburg Morris
Lewis J. G.
McCloskey R. J.
Truhe J. V.
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