Patents Represented by Attorney Thomas E. Berry

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  • Circuit assembly and placement apparatus
    Patent number: 5158421
    Abstract: A circuit assembly device (200) comprises a cylinder (202) containing a piston (204) coupled to an end-effector for facilitating an assembly of a circuit carrying substrate. The piston (204) defines a first chamber (212) and a second chamber (214) in the cylinder (202) for maintaining substantially the same pressure such that a difference in areas of the first and second chambers (212, 214) establishes a compliant force on the end-effector.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: October 27, 1992
    Assignee: Motorola, Inc.
    Inventors: Daniel Peana, Andy Marozsan, Stefan Peana