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. 31, 2012
Filed:
Sep. 23, 2010
Dennis G. Doyle, Shrewsbury, MA (US);
Dennis G. Doyle, Shrewsbury, MA (US);
Illinois Took Works Inc., Glenview, IL (US);
Abstract
A stencil printer includes a frame, a stencil coupled to the frame, a substrate support coupled to the frame to support a substrate in a print position, and a print head, coupled to the frame, to deposit and print viscous material over the stencil. The print head includes a squeegee assembly having at least one squeegee blade and a squeegee blade movement mechanism configured to move the squeegee blade from a raised position in which the squeegee blade is spaced from stencil and a lowered position in which the squeegee blade engages and applies a force on the stencil. The print head further has a device to detect a first reference point associated with a first force of the squeegee blade against the stencil and a second reference point associated with a second force of the squeegee blade against the stencil when moving the squeegee blade to the lowered position in which the squeegee blade engages and applies a force on the stencil.