Patents by Inventor Thomas M. Tidrick

Thomas M. Tidrick 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).

  • Air conditioner monitor and alarm system
    Patent number: 8001797
    Abstract: A monitor system for an air conditioning unit having a suction refrigerant line and a liquid refrigerant line. The monitor system has two low pressure sensors mounted on the suction refrigerant line; a high pressure sensor mounted on the liquid refrigerant line; a back-up battery; an AC transformer; an AC to DC converter board having three connection points; two double DPDT relays; a terminal board having terminals for connection to the converter board, the relays, a warning device and the pressure sensors. For commercial size air conditioning systems, the monitor system has two 12-volt back-up batteries; two AC transformers; two 16 AC to DC converter boards, and three double DPDT relays.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: August 23, 2011
    Inventor: Thomas M. Tidrick
  • Air conditioner monitor and alarm system
    Publication number: 20090077984
    Abstract: A monitor system for an air conditioning unit having a suction refrigerant line and a liquid refrigerant line. The monitor system has two low pressure sensors mounted on the suction refrigerant line; a high pressure sensor mounted on the liquid refrigerant line; a back-up battery; an AC transformer; an AC to DC converter board having three connection points; two double DPDT relays; a terminal board having terminals for connection to the converter board, the relays, a warning device and the pressure sensors. For commercial size air conditioning systems, the monitor system has two 12-volt back-up batteries; two AC transformers; two 16 AC to DC converter boards, and three double DPDT relays.
    Type: Application
    Filed: September 25, 2007
    Publication date: March 26, 2009
    Inventor: Thomas M. Tidrick