Jeffrey A Herb, Age 57Phoenix, AZ

Jeffrey Herb Phones & Addresses

Phoenix, AZ

13122 W Jacobson Dr, Litchfield Pk, AZ 85340

Litchfield Park, AZ

Goodyear, AZ

Vancouver, WA

Beaverton, OR

Wilsonville, OR

Rutherfordton, NC

Portland, OR

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Jeffrey Herb Photo 26

Engineer

Industry:
Civil Engineering
Work:
Current
Engineer
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Jeffrey Herb

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Jeffrey Herb

Publications & IP owners

Us Patents

Current Sensing Apparatus

US Patent:
2012019, Aug 2, 2012
Filed:
Jan 20, 2012
Appl. No.:
13/354845
Inventors:
Eric Christopher Beishline - Marlborough MA, US
Jeffrey Alan Herb - Vancouver WA, US
Tiago Braz Anes - Framingham MA, US
International Classification:
G01R 1/20
US Classification:
324126
Abstract:
A current sensing device () having a plurality of discrete, repeatable, user-selectable setpoint values. Current sensing circuitry () of the device includes a multi-position switch () operative to alternatively connect discrete impedances (e.g. resistors R, R, R, or R) into the circuit in order to change the setpoint value. A calibration scale () associated with a user-input knob () of the multi-position switch may be marked with values of horsepower which correspond to the size of a motor that has a motor nameplate rating equivalent to the sensed current setpoint associated with each switch position. A second switch () may be provided to allow the user to select an offset for the setpoint value.

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