Patents by Inventor Van Z. Smith

Van Z. Smith 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).

  • Insulated boom structure for telescoping aerial lift
    Patent number: 4534444
    Abstract: The invention provides improved telescopic boom structure for aerial lifts, including the provision of a lower boom structure outer end portion made of electrical insulating material, which together with other provisions, accomplishes the essential elimination of electric shock hazard to personnel without incurring any of the disadvantages of significantly increased expense, reduced effective working area due to reduced range of boom extension, or increased stowed length of the boom structure.
    Type: Grant
    Filed: August 20, 1984
    Date of Patent: August 13, 1985
    Assignee: Time Manufacturing Company
    Inventor: Van Z. Smith