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. 02, 1982

Filed:

Mar. 30, 1981
Applicant:
Inventors:

John B Serafino, Billerica, MA (US);

William A Kmetz, Marlboro, MA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B / ;
U.S. Cl.
CPC ...
422249 ; 1566 / ; 156D / ;
Abstract

A belt-roller crystal pulling mechanism is described. The belt-roller comprises a single driven belt having a vertical run, and a set of pivotally mounted follower rollers for urging the growing crystal in contact with the belt. The pivot mount enables bends or buckles in the crystal to go through the belt and rollers without causing wiggle at the growth interface which might otherwise cause the growing crystal to break free from the meniscus.


Find Patent Forward Citations

Loading…