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:
Jun. 26, 2001
Filed:
Sep. 20, 1999
Applicant:
Inventors:
Daniel A. Cote, Windsor, VT (US);
Christopher A. Hofmeister, Hampstead, NH (US);
Jayanth Prabharkar, Bedford, NH (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B67D 5/40 ; F04B 9/08 ;
U.S. Cl.
CPC ...
B67D 5/40 ; F04B 9/08 ;
Abstract
A precision dispensing pump for dispensing fluids and method of dispensing for use in semiconductor packaging and/or semiconductor assembly. The precision dispensing pump employs a working fluid displacement drive for volumetric displacement of a working fluid, a dispensing reservoir for containment of dispensing fluid and a isolation diaphragm for isolating the working fluid from dispensing fluid in the dispensing reservoir. Volumetric displacement of dispensing fluid in the dispensing reservoir is proportional to volumetric displacement of working fluid in the working fluid displacement drive.