The Stanley Works

Overhead Door Corporation

Amit Ashok Patel

Leroy G Krupke

Juan Manuel Diaz

Glenn K Redding

Ajay Garg

David Patrick Bresson

A mechanical transmission system is provided for a barrier operator system for positioning a garage door between open and closed positions. The transmission system includes a rail having a channel to receive a drive sprocket and a return pulley. A drive element is trained around the drive sprocket and return pulley. The system further includes a tensioning system disposed within the channel and includes a return pulley support member and a bracket disposed on an end of the rail for supporting the return pulley support member. In addition, an adjusting screw is interfaced with and extends between the return pulley support member and the bracket, the adjusting screw movable to adjust the position of the return pulley support member relative to the bracket to increase or decrease the tension of the drive element.

Barrier operator mechanical transmission assembly

Disclosed are alternate embodiments of various components of a barrier operator system. and methods of operation, including of the mechanical drive subsystem with segmented and self-locking rail unit, rail mounting supports, belt and chain drive tensioning, and drive assembly carriage and interface; the electronics and software routines for controlled operation of the various barrier operator functions; wall console communications with the barrier operator; encryption and decryption of access codes; establishment and monitoring of travel limits and barrier speed and force profiles; thermal protection of barrier operator drive motors; and establishment and control of communications from the barrier operator to accessories by way of a wireless adapter.

A ratchet wrench includes a body with a head portion and a shaft. The head portion includes a cavity. A rotatable member is received by the cavity and is rotatable about an axis. The rotatable member has a plurality of teeth disposed around a circumferential surface thereof. A reversing member is pivotally mounted to the body, and is movable between a first position and a second position. A pawl is connected to the reversing member such that the pawl moves circumferentially relative to the axis of the rotatable member as the reversing member moves between the first and second positions. The pawl includes a plurality of teeth that intermesh with the plurality of teeth on the rotatable member. Substantially all of the teeth of the pawl remain intermeshed with the teeth of the rotatable member as the reversing member moves between the first position and the second position.

Ratchet wrench

A hand tool for applying a torque to a threaded fastener includes a tool body having an opening and a fastener engaging mechanism rotatably mounted in the opening. A control assembly comprising a cylindrical roller, spring assembly and control switch are mounted with respect to the tool body. The spring assembly biases the roller against surfaces on the tool body and the fastener engaging mechanism. The roller the releasably locks the faster engaging mechanism to the tool body when the tool body is rotated through a drive stroke. The tool body can be moved through drive and return strokes of any arc length with no significant lost motion.

Growing community of inventors

Lewisville, TX, United States of America

Amit Ashok Patel