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:
Nov. 25, 2008
Filed:
Sep. 05, 2007
Applicants:
Zhi Huang, Kanata, CA;
John H. Hunter, Almonte, CA;
Graham Malcove, Kanata, CA;
Ian J. Miller, Ottawa, CA;
Gregg Senechal, Orleans, CA;
Inventors:
Zhi Huang, Kanata, CA;
John H. Hunter, Almonte, CA;
Graham Malcove, Kanata, CA;
Ian J. Miller, Ottawa, CA;
Gregg Senechal, Orleans, CA;
Assignee:
LightMachinery Inc., Ottawa, Ontario, CA;
Primary Examiner:
Int. Cl.
CPC ...
B24C 5/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to fluid jet polishing machine including a pump that maintains a constant pressure in the polishing fluid during each pass of a nozzle over a component. Fluid actuated diaphragms expand and contract the volume of a pair of pump chambers, thereby eliminating the need for high-speed shafts or components in contact with the abrasive slurry.