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. 18, 2005
Filed:
Mar. 28, 2003
Gerald C. Pham-van-diep, Hopkinton, MA (US);
Patsy Anthony Mattero, Smithfield, RI (US);
Randy Leon Peckham, North Scituate, RI (US);
Gary Freeman, Beverly, MA (US);
Joseph A. Perault, Natick, MA (US);
Richard Willshere, Weymouth, GB;
Gerald C. Pham-Van-Diep, Hopkinton, MA (US);
Patsy Anthony Mattero, Smithfield, RI (US);
Randy Leon Peckham, North Scituate, RI (US);
Gary Freeman, Beverly, MA (US);
Joseph A. Perault, Natick, MA (US);
Richard Willshere, Weymouth, GB;
Speedline Technologies, Inc., Franklin, MA (US);
Abstract
A printer includes a print head for dispensing viscous material, such as solder paste. The print head defines a chamber and includes at least one source port and a dispensing slot. Within the chamber, a flexible membrane segregates the chamber into a dispensing region and an activation region. Viscous material flows from a supply mounted to the source port, into the dispensing region and out the slot. A displacement mechanism is positioned to displace the flexible membrane to reduce the volume of dispensing region and to thereby dispense viscous material through the slot. The print head also includes a removable envelope through which the viscous material flows and contacts as it passes through the envelope.