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:
Jan. 20, 1998
Filed:
Nov. 02, 1995
Robert Terneu, Thimeon, BE;
Secondo Franceschi, Gosselies, BE;
Glaverbel, Brussels, BE;
Abstract
A device for the formation, by pyrolysis, of a coating on a face of a hot glass substrate includes a vault; support elements for conveying the substrate along a path through a coating chamber defined between the main vault and the substrate; elements for supplying and distributing gaseous reagent to the coating chamber; elements for discharging exhaust gas from the coating chamber; and a plurality of struts. The elements for supplying and distributing gaseous reagent to the coating chamber include an ejection nozzle having defined therein a slot which opens directly into the coating chamber, has opposing longitudinal internal walls, extends transverse to the path of the substrate, and has a length which is substantially equal to the coating width of the coating formed. The plurality of struts are positioned at spaced intervals and connect the opposing walls of the slot together to thereby maintain the walls of the slot in substantially parallel disposition. The ejection nozzle has longitudinal internal walls which define a continuous convergent path which terminates at and communicates with the slot and has an angle of convergence (.alpha.), thereby causing the flow of gaseous reagent to conform to the slot, the angle of convergence (.alpha.) of the convergent path being up to but not greater than 14.degree. at any point. Alternatively, instead of a plurality of struts, the device may include elements for trapping stray deposits including at least one metal bar disposed below the vault of the coating chamber.