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:
Feb. 16, 1993
Filed:
Sep. 18, 1990
Russell E Blette, Hastings, MN (US);
John O Roeser, Barrington, IL (US);
Minnesota Mining and Manufacturing Company, St. Paul, MN (US);
Abstract
A method and an assembly useful for dispensing small quantities of liquid materials onto a workpiece. The assembly includes an applicator having a pin movable along a passageway from a retracted position to an extended position. As the pin moves to the extended position, a forward end of the pin picks up a small dot of the liquid materials and carries the dot to a position external of a housing of the applicator and into contact with a selected location on the workpiece. As the pin is retracted, a portion of the dot remains on the selected location and detaches from the pin. The assembly is particularly useful for dispensing small dots of solder paste at relatively high speeds in automated fashion at selected locations on a circuit board.