Patents by Inventor Andrew J. L. Hartman

Andrew J. L. Hartman 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).

  • Sliding locking actuator for automatic tilt mechanism
    Patent number: 9003719
    Abstract: A mast assembly including a locking actuator for locking a cradle of the mast in position. The locking actuator includes a housing having a first lock pin extending in a first direction and a movable member supported by the housing having a second lock pin extending in a second direction opposite the first, the locking actuator being slideably mounted to the cradle for sliding movement along an axis parallel to an axis of extension/retraction of the locking actuator. When the locking actuator is extended the first and second lock pins are inserted into respective lock holes in a base member thereby locking the cradle against pivoting movement relative to the base member.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: April 14, 2015
    Assignee: The Will-Burt Company
    Inventors: Anatol Kwartler, Paul B. Blackwelder, Andrew J. L. Hartman, Rexford R. Mast
  • SLIDING LOCKING ACTUATOR FOR AUTOMATIC TILT MECHANISM
    Publication number: 20140259986
    Abstract: A mast assembly including a locking actuator for locking a cradle of the mast in position. The locking actuator includes a housing having a first lock pin extending in a first direction and a movable member supported by the housing having a second lock pin extending in a second direction opposite the first, the locking actuator being slideably mounted to the cradle for sliding movement along an axis parallel to an axis of extension/retraction of the locking actuator. When the locking actuator is extended the first and second lock pins are inserted into respective lock holes in a base member thereby locking the cradle against pivoting movement relative to the base member.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Applicant: THE WILL-BURT COMPANY
    Inventors: Anatol Kwartler, Paul B. Blackwelder, Andrew J. L. Hartman, Rexford R. Mast