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. 10, 1990
Filed:
Jun. 17, 1988
Julie A Bohlayer, Horseheads, NY (US);
Gordon F Foster, Campbell, NY (US);
Robert D Shoup, Corning, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
Silica glass articles of complex shape are provided by a gel machining process wherein a silicate solution is first cast into a mold of simple shape and gelled to a fully crosslinked wet gel body, and the wet gel body is thereafter removed from the mold and machined by grinding, drilling, core drilling, water jet cutting or the like to provide a wet gelled shape of the complex configuration desired. The complex wet gel shape is then dried and consolidated, with no change in configuration (except for shrinkage), to provide a unitary crack-free glass article retaining the shape of the machined gel.