Patents by Inventor Lester W. Haaker

Lester W. Haaker 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: 4221516
    Abstract: An improved remote control master-slave manipulator of the type by which an operator working on one side of a protective barrier wall may perform work on the opposite side of that wall. The improved manipulator is characterized by a unique power assist tong system permitting increased handling capacity. It has a rotating counterweight system for improved balancing of the manipulator in its "Y" motion forwardly away from the operator. It has means for translating linear motion into rotary motion for transfer through the barrier wall and retranslation into linear motion. The wrist joint assemblies are remotely removable, replaceable and interchangeable as are the tong assemblies.
    Type: Grant
    Filed: May 31, 1978
    Date of Patent: September 9, 1980
    Assignee: Central Research Laboratories, Inc.
    Inventors: Lester W. Haaker, Demetrius G. Jelatis