The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 10, 2001
Filed:
May. 27, 1999
Erlendur Kristjansson, Salem, MA (US);
Teijin Seiki Boston, INC, Peabody, MA (US);
Abstract
The invention comprises an actuator controlled harmonic drive transmission assembly for the speed and positional control of an output shaft of the harmonic drive transmission. The assembly includes a motor having a rotor shaft for providing rotational power to harmonic drive transmission and a control arrangement for permitting rotational positional and speed control between the rotor shaft and the output shaft of the harmonic drive transmission. The control arrangement may comprise an output speed, torque, vibration and/or rotational encoder mounted on the output shaft of the harmonic drive transmission. The control arrangement may comprise an output speed and rotational encoder mounted on the rotor shaft of the motor, each encoder feeding data to a control logic unit to control the motor driving the transmission.