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. 11, 1980
Filed:
Apr. 16, 1979
Applicant:
Inventors:
Hans W Boehm, Toledo, OH (US);
Richard A Herrington, Walbridge, OH (US);
Waldemar W Oelke, Rossford, OH (US);
Assignee:
Libbey-Owens-Ford Company, Toledo, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B26F / ; B26F / ;
U.S. Cl.
CPC ...
225 935 ; 225 93 ; 225 965 ;
Abstract
A method of and apparatus for thermally severing thick glass sheets by applying an energized electrical resistance wire element against the glass surface coincident with the intended line of cut and providing mechanical means adjacent the starting end of the cut to spread the glass portions on opposite sides of the line apart as the cut begins to run from the starting end. A glass spreading arrangement also can be provided at the trailing end of the cut to assure a straight cut along the intended path from end to end.