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. 23, 2012
Filed:
Nov. 21, 2005
Marc Laverdiere, Wakefield, MA (US);
James Cedrone, Braintree, MA (US);
George Gonnella, Pepperell, MA (US);
Iraj Gashgaee, Marlborough, MA (US);
Paul Magoon, Merrimack, NH (US);
Timothy J. King, Sudbury, MA (US);
Marc Laverdiere, Wakefield, MA (US);
James Cedrone, Braintree, MA (US);
George Gonnella, Pepperell, MA (US);
Iraj Gashgaee, Marlborough, MA (US);
Paul Magoon, Merrimack, NH (US);
Timothy J. King, Sudbury, MA (US);
Entegris, Inc., Billerica, MA (US);
Abstract
Embodiments of the present, invention provide a system and method for reducing the hold-up volume of a pump. More particularly, embodiments of the present invention provide a system and method for determining a home position to reduce hold-up volume at a dispense pump and/or a feed pump. The home position for the diaphragm can be selected such that the volume of the chamber at the dispense pump and/or feed pump contains sufficient fluid to perform the various steps of a dispense cycle while minimizing the hold-up volume. Additionally, the home position of the diaphragm can be selected to optimize the effective range of positive displacement.