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. 14, 1998
Filed:
Jun. 12, 1997
Kevin P Connors, Sunnyvale, CA (US);
James L Hobart, Los Altos Hills, CA (US);
Edward D Reed, Sunnyvale, CA (US);
David Trost, San Francisco, CA (US);
Kenneth J Bossie, Tucson, AZ (US);
Thomas William McCurnin, Tucson, AZ (US);
Gerald M Mitchell, Tucson, AZ (US);
J Michael Yarborough, Tucson, AZ (US);
Coherent, Inc., Santa Clara, CA (US);
Abstract
A liquid circulation system for cooling a laser head is disclosed. The circulation system comprises a main storage tank for holding a cooling liquid and a pump for circulating the liquid from the tank through the laser head and back into the tank. The cooling system includes a heat exchanger for cooling the liquid. The heat exchanger includes liquid carrying coils and an impeller fan rotatable about an axis. The fan being located adjacent the coils for drawing air across the coils in an axial direction with respect to the fan and for expelling the air radially with respect to the fan.