Patents by Inventor Thomas S. Dix, Jr.

Thomas S. Dix, Jr. 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: 5053768
    Abstract: A system and method are provided for controlling the movement of a golf cart relative to a selected restricted area on a golf course, such as a green. A signal transmitter having a transmitting antenna is postioned in the vicinity of the selected restricted area. A transmission signal is produced from the transmitting antenna at the selected restricted area. A signal receiver having a receiving antenna is positioned on the golf cart for receiving the transmission signal when the golf cart moves into the vicinity of the transmitting antenna. An alarm on the golf cart is activated when the transmission signal received by the receiving antenna reaches a predetetermined level for indicating to an operator of the golf cart that the cart has moved into the restricted area on the golf course. The activation period of the first alarm is timed so that a second alarm on the golf cart can be activated after the expiration of a predetermined time period of activation of the first alarm.
    Type: Grant
    Filed: December 21, 1989
    Date of Patent: October 1, 1991
    Assignee: Invisible Fence Company, Inc.
    Inventor: Thomas S. Dix, Jr.
  • Patent number: 4996945
    Abstract: An animal control system with a lightning arrester is provided for controlling the movement of an animal relative to a predetermined outdoor area. A signal transmitter produces an output signal of predetermined frequency. A wire loop transmitting antenna is electrically connected with the transmitter and is positioned at the predetermined outdoor area to transmit the output signal from the transmitter. A portable receiver responsive to the signal from the antenna is carried by the animal. The portable receiver produces an animal control output in the form of an annoying tone or an electrical shock to the animal when the animal moves into a selected vicinity of the antenna. A lightning arrester is electrically connected between the transmitter and the antenna. The lightning arrester includes a pair of choke coils respectively connected from the transmitter to opposite sides of the antenna.
    Type: Grant
    Filed: May 4, 1990
    Date of Patent: March 5, 1991
    Assignee: Invisible Fence Company, Inc.
    Inventor: Thomas S. Dix, Jr.