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:
Apr. 23, 2013
Filed:
Mar. 19, 2012
Robert W. Tracy, Haverhill, MA (US);
Kenneth C. Crouch, North Andover, MA (US);
Robert W. Tracy, Haverhill, MA (US);
Kenneth C. Crouch, North Andover, MA (US);
Illinois Tool Works Inc., Glenview, IL (US);
Abstract
A dispenser for dispensing a volume of viscous material on a substrate includes a frame, a gantry system coupled to the frame, and a dispenser unit coupled to the gantry system. The dispenser unit includes a housing having a chamber, and a piston disposed in the chamber. The piston has an elongate body and is configured to move between a pre-dispense position and a dispense position within the chamber. The dispenser unit further includes a motor to drive the movement of the piston within the chamber. The motor includes a rotating shaft, a wheel coupled to the rotating shaft, the wheel having at least one drive magnet, and a driven magnet disposed between wheel and the piston. The dispenser further includes a nozzle coupled to the housing. The nozzle has an orifice to dispense viscous material. Other embodiments of the dispenser and methods of dispensing are further disclosed.