Patents by Inventor Aloysius G. Mahabir

Aloysius G. Mahabir has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • DC solenoid actuator circuits
    Patent number: 4642725
    Abstract: This invention relates to DC solenoid actuator circuits.A DC solenoid winding located to act on an armature, is connected across a rectifier connected to an AC supply. A capacitor is provided across the winding so that the initial voltage applied to the solenoid winding is greater than the average actuating voltage.One terminal of the rectifier is connected to the AC supply via a switch which can either include in that circuit a capacitor or shunt that capacitor. The switch is mechanically linked to the armature of the solenoid winding so that at a predetermined point during the stroke of the armature the switch is operated to include the capacitor in the circuit so as to lower the actuating voltage for the solenoid.
    Type: Grant
    Filed: October 3, 1985
    Date of Patent: February 10, 1987
    Assignee: Vent-Axia Limited
    Inventors: David Vincent, Aloysius G. Mahabir