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:
Feb. 28, 1995
Filed:
Dec. 23, 1992
Applicant:
Inventor:
Srinivas R Bidare, Ann Arbor, MI (US);
Assignee:
Aeromover Systems Corporation, Dexter, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ; F24H / ;
U.S. Cl.
CPC ...
392379 ; 392382 ; 392473 ; 156497 ; 225 935 ;
Abstract
This invention relates to a device for causing fracture of a brittle material such as a glass. The invention employs at least two fluid streams directed against the surface of the material to be cut. One stream is a heated fluid such as air whereas a second flow of colder fluid such as ambient temperature air is also directed against the surface to be fractured at a displaced location. The combined effect of heating and rapid cooling causes thermal stress and fracture to occur in the material to be cut. The manner of applying the fluid according to this invention produces a highly controllable propagating fracture.