Patents Assigned to General Equipment & Mfg. Co., Inc.
  • Double-pole double-throw proximity switch
    Patent number: 4465992
    Abstract: A magnetically actuated proximity switch is provided with a double-pole double-throw contact arrangement. To substantially equalize the contact pressures between the two poles a movable armature, to which the movable contacts are firmly attached, is loosely pivoted to rotate about a transverse axis to open or close the contacts and to rock about a longitudinal axis to divide the available operating force between the two poles of the switch.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: August 14, 1984
    Assignee: General Equipment & Mfg. Co., Inc.
    Inventor: Gerald L. Fowler
  • Electronic synchronization monitor
    Patent number: 4270156
    Abstract: An electronic sensing circuit monitoring the voltage on each of two alternating current power lines indicates when a load may be transferred from one of the power lines to the other without generating undesirable transient voltages or currents in the load.
    Type: Grant
    Filed: April 9, 1979
    Date of Patent: May 26, 1981
    Assignee: General Equipment & Mfg. Co., Inc.
    Inventor: Warren C. Fry
  • Three phase undervoltage monitor
    Patent number: 4238811
    Abstract: A three phase undervoltage monitor separately converts the voltage on each phase to a D.C. voltage, compares each of the separate D.C. voltages with a reference voltage, and operates an output signal whenever one or more of the voltages drops below the reference voltage.
    Type: Grant
    Filed: April 9, 1979
    Date of Patent: December 9, 1980
    Assignee: General Equipment & Mfg. Co., Inc.
    Inventor: Warren C. Fry
  • Armature for a proximity switch
    Patent number: 4225837
    Abstract: A magnetically actuated proximity device or switch is provided with an armature formed as a shallow U that is pivoted at its center and arranged with the legs of the U directed toward the pole faces of a pair of permanent magnets. The particular shape increases the sensitivity of the device and the force available for operating contacts or other output devices in response to the diversion of flux from an end of the armature.
    Type: Grant
    Filed: December 28, 1978
    Date of Patent: September 30, 1980
    Assignee: General Equipment & Mfg. Co., Inc.
    Inventor: Gerald L. Fowler