Patents by Inventor John L. Macrina

John L. Macrina 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).

  • Patent number: 6062166
    Abstract: An automatic pet feeder system which allows a user to monitor the operation of the pet feeding and determine whether or not the pet feeding system is operating normally by placing a phone call to his or her house. The invention includes both a water reservoir and food reservoir which are each in connection with a separate bowl while monitoring sensors in the reservoirs and bowls determine the level of food and/or water and which when necessary indicate through a monitoring circuit to a controller to actuate an inlet valve to allow either food or water to enter into the appropriate bowl. The control circuit includes a telephone relay disconnect with an inlet and outlet telephone line while a regular telephone answering machine is attached to an outlet line from the automatic feeder so that when an interruption in the systems's operation is encountered the telephone answering machine is disconnected through the relay alerting the user to a feeding system malfunction.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: May 16, 2000
    Inventor: John L. Macrina