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:
May. 23, 1989
Filed:
Feb. 12, 1988
Applicant:
Inventors:
Akbar Montaser, Potomac, MD (US);
Shi-Kit Chan, Washington, DC (US);
Raymond L Van Hoven, Alexandria, VA (US);
Assignee:
Research Corporation, Tucson, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ; H05H / ;
U.S. Cl.
CPC ...
21912152 ; 21912151 ; 21912148 ; 21912149 ; 31511151 ;
Abstract
An inductively coupled plasma torch including a base member, a plasma tube and a threaded insert member within the plasma tube for directing the plasma gas in a tangential flow pattern. The design of the torch eliminates the need for a separate coolant gas tube. The torch can be readily assembled and disassembled with a high degree of alignment accuracy.