Patents by Inventor David Jennett

David Jennett 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).

  • Method of preventing the formation of an air pocket in a blender
    Patent number: 5302021
    Abstract: An air pocket is often formed in fluid (F) in the pitcher (14) of a blender around the rotating mixing blade assembly (24) thereof. The air pocket is of a cross-sectional size defined by an air channel defining member, shown in the form of a bearing housing (23) of the mixing blade assembly (24). After the pitcher (14) is filled with the fluid (F), the plunger portion (12) of an accessory (10) is positioned adjacent to and above the mixing blade assembly (24) and maintained free of contact with the pitcher (14). The plunger portion (12) is of a cross-sectional size approximately the cross-sectional size of the air channel defining member and prevents the formation of the air pocket in the fluid (F) around the blade assembly (24).
    Type: Grant
    Filed: May 13, 1993
    Date of Patent: April 12, 1994
    Assignee: Vita-Mix Corporation
    Inventors: David Jennett, Richard D. Boozer, John K. Barnard
  • Cover for a blender
    Patent number: D345488
    Type: Grant
    Filed: April 1, 1992
    Date of Patent: March 29, 1994
    Assignee: Vita-Mix Corporation
    Inventors: Frank P. Barnard, David Jennett