Patents Assigned to Techmetric, Inc.
  • Anti-backlash nut for lead screw
    Patent number: 6311576
    Abstract: An anti-backlash nut includes a body having an axially-extending bore and internal threads for engaging a lead screw inserted into the bore. The internal threads are divided circumferentially into three inner segments each movable in a radial direction. The anti-backlash nut also includes springs for independently biasing the inner segments radially inward to contact the lead screw. The anti-backlash nut provides wear compensation as well as anti-backlash to improve positioning repeatability when used with an open loop positioner.
    Type: Grant
    Filed: October 4, 1999
    Date of Patent: November 6, 2001
    Assignee: Techmetric Inc.
    Inventor: Timothy J. Pletschet
  • Linear slide assembly
    Patent number: 6290395
    Abstract: A linear slide assembly which includes a pair of parallel stationary ways and a carriage. A pair of parallel traveling ways are mounted to the carriage. One traveling way is mounted to the carriage by a fixed mounting and the other is mounted to the carriage by a laterally-compliant mounting. The laterally-compliant mounting includes a compliant mounting bar mounted to the carriage with flexures that allow some lateral movement. The compliant mounting also includes a stop that limits the lateral movement of the compliant traveling way.
    Type: Grant
    Filed: October 13, 1999
    Date of Patent: September 18, 2001
    Assignee: Techmetric, Inc.
    Inventor: Timothy J. Pletschet