Patents by Inventor Joseph D. Kraft, Sr.

Joseph D. Kraft, 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).

  • Patent number: 6124782
    Abstract: A wind-activated audio-generating apparatus includes a sound-generating circuit and a wind switch having multiple contacts that are suspended from a support. When subjected to an air current, the contacts of the wind switch randomly strike one another and create a momentary electrically conductive path for an electrical signal. The electrical signal is applied to the sound-generating circuit, which is configured to generate an audio effect, such as a birdcall, in response thereto. The sound-generating circuit can also be configured to selectively generate an audio effect based on the occurrence of a predetermined condition, such as the detection of daylight.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: September 26, 2000
    Inventor: Joseph D. Kraft, Sr.