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. 24, 2015
Filed:
Mar. 31, 2011
Derrick J. Rockosi, Lynn, MA (US);
Richard Gentilman, Acton, MA (US);
Christopher K. Solecki, Allen, TX (US);
Allen L. Kelly, Dallas, TX (US);
William C. Strauss, Westford, MA (US);
Brian Gahan, McKinney, TX (US);
Derrick J. Rockosi, Lynn, MA (US);
Richard Gentilman, Acton, MA (US);
Christopher K. Solecki, Allen, TX (US);
Allen L. Kelly, Dallas, TX (US);
William C. Strauss, Westford, MA (US);
Brian Gahan, McKinney, TX (US);
RAYTHEON COMPANY, Waltham, MA (US);
Abstract
A fused silica body comprising a layer of vitreous silica adjacent at least a portion of an inner surface is described in embodiments herein. In other embodiments, a method of making a fused silica body with a layer of vitreous silica adjacent at least a portion of an inner surface is described herein, comprising heating at least a portion of the inner surface to the point of vitrification. In certain embodiments, the method involves passing a linear local heat source over the inner surface in a particular manner, such as a helical fashion transverse to the linear shape, and may involve creating on the inner surface of the body overlapping swaths of temporarily melted silica material.