Patents by Inventor Zack Williamson

Zack Williamson 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).

  • Publication number: 20050075045
    Abstract: The invention relates to a portable device used by hunters and wildlife enthusiasts to lure a variety of animals into close proximity. The device selectively plays back pre-recorded wildlife vocalizations stored as analog signals within an integrated circuit. The device utilizes an external speaker that can be remotely located from the device to provide an opportunity for the operator of the device to be secluded from view of wildlife. The device incorporates the selective use of one of two audio amplifier circuits, thereby enhancing the range of volume control. The device incorporates a selective and replaceable plug-in module used for determining and varying the specific species of animal vocalizations to be played back. The device operates from either an integral rechargeable battery or an auxiliary, direct current power source to further enhance its portability and includes the use of a battery charger and auxiliary power cord.
    Type: Application
    Filed: July 28, 2003
    Publication date: April 7, 2005
    Inventor: Zack Williamson