Patents by Inventor Lowell F. Izaguirre, Sr.

Lowell F. Izaguirre, Sr. 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).

  • Control to operate a forced air blower
    Patent number: 5011073
    Abstract: An electronic control for a warm air furnace blower including an input circuit for receiving a signal from a thermostat. The signal is delayed by a first adjustable time delay to operate a blower relay, which energizes the blower. When the input signal ceases, a second adjustable time delay serves to delay opening of the blower relay. A second input circuit for receiving an emergency signal operates the blower relay without delay, and the second time delay serves to delay opening of the blower relay after the emergency signal ceases.
    Type: Grant
    Filed: November 3, 1989
    Date of Patent: April 30, 1991
    Assignee: Cam-Stat, Inc.
    Inventors: Lowell F. Izaguirre, Sr., Jose M. Perotti
  • Three phase electrical load protection device
    Patent number: 4825328
    Abstract: A three phase electrical load protection device is disclosed including an input transducer for detecting each phase voltage and the direction of rotation of the phases of a three phase power system. A control monitor is disclosed for monitoring signals from the input transducer representative of the highest and lowest phase voltages and the direction of rotation of the phases for controlling an output device for disconnecting the electrical load when improper supply conditions are detected and monitored.
    Type: Grant
    Filed: June 12, 1987
    Date of Patent: April 25, 1989
    Assignee: Watsco Components, Inc.
    Inventor: Lowell F. Izaguirre, Sr.