Patents by Inventor David Cale

David Cale 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).

  • Bee smoker
    Patent number: 4615138
    Abstract: This invention pertains to a bee smoker device that includes an enveloping wire network that decreases the chances that a beekeeper or hives or surrounding equipment will be hurt or damaged by the hot housing of the bee smoker.
    Type: Grant
    Filed: November 16, 1984
    Date of Patent: October 7, 1986
    Assignee: Dadant & Sons, Inc.
    Inventors: David Cale, Rodney Little