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:
Jun. 12, 1979
Filed:
Nov. 21, 1977
Applicant:
Inventors:
Robert J Patton, Westford, MA (US);
Thomas J Sentementes, Wakefield, MA (US);
Assignee:
GTE Sylvania Incorporated, Stamford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D / ; B22D / ;
U.S. Cl.
CPC ...
164 87 ; 164 50 ; 164250 ; 164423 ;
Abstract
There is described an improved apparatus for producing filaments from a high melting point material by forming a pendant drop at the end of the material and engaging the drop with a rotating heat extracting member (e.g. copper disc). The improvement to the apparatus comprises a pair of heating components to heat the material to a temperature immediately below its melting point and thereafter heat only the end of the material to the melting point. The result is a vibration free pendant drop suspended from the rod's end. A method for making the filament is also described.