Ronald Richard Feigal
Engineers in Seattle, WA
License number
Colorado 19261
Issued Date
May 21, 1982
Renew Date
Dec 10, 1986
Expiration Date
Dec 10, 1986
Type
Professional Engineer
Address
Address
4219 - 2 Ave, NE, Seattle, WA 98105
Personal information
See more information about Ronald Richard Feigal at radaris.comName
Address
Phone
4333 Sunnyside Ave N, Seattle, WA 98103
Professional information
See more information about Ronald Richard Feigal at trustoria.com
Ground Circuit Voltage Detector
Ground Circuit Voltage Detector
US Patent:
4398188, Aug 9, 1983
Filed:
Oct 7, 1981
Appl. No.:
6/309443
Inventors:
Donn L. Feigal - Pine Island MN
Ronald R. Feigal - Seattle WA
Ronald R. Feigal - Seattle WA
International Classification:
G08B 2100
US Classification:
340650
Abstract:
A ground circuit voltage detector for monitoring stray ground voltages occurring in dairy equipment to provide both an instantaneous warning indication and a sustained alarm indication. The voltage detector is connected between the equipment to be monitored at a sensing input and a separate ground. The sensed voltage is filtered and applied to a first comparator through an averaging circuit. If the average ground voltage exceeds the threshold level of the first comparator, a warning indication is provided which is proportional in strength to the sensed ground voltage. The first comparator is connected in series with a second comparator through an integrator. If the threshold level of the second comparator is exceeded, a sustained alarm indication is provided. A test circuit applies a voltage to the detector input to ensure the detector is operating properly.