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:
Oct. 04, 2016
Filed:
Mar. 11, 2013
James L. Gallagher, Inc., Little Compton, RI (US);
James L. Gallagher, Little Compton, RI (US);
James L. Gallagher, Inc., Little Compton, RI (US);
Abstract
A technique for maintaining tension on fiber drawn from a spindle includes incorporating a permanent magnet brake into a spindle and controlling tension of fiber paid out from the spindle by rotating an adjustment plate of the permanent magnet brake with a motor. In some examples, a motor (e.g., a stepper motor) is coupled to the adjusting plate of the permanent magnet motor through a set of gears, a timing belt, or a similar transmission medium. Mechanical advantage afforded through gear reduction allows a very small motor to control a large amount of braking torque. Motor control may be accomplished for multiple spindles with little power.