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.

Date of Patent:
Mar. 08, 1977

Filed:

Oct. 03, 1975
Applicant:
Inventor:
Assignee:

Pilkington Brothers Limited, St. Helens, EN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65 29 ; 65135 ; 65162 ; 65164 ; 65341 ;
Abstract

A predetermined rate of flow of molten glass from a reservoir, for example a glass melting furnace, is maintained by flowing glass from the reservoir to an intermediate vessel in which the glass temperature is fixed in relation to the temperature of glass discharging from the reservoir, continuously developing a control signal representing any change in the quantity of glass in the intermediate vessel, and using that signal to adjust the flow from the reservoir.


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