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:
Jul. 05, 1994
Filed:
Jun. 26, 1992
Applicant:
Inventors:
Arthur Bross, Poughkeepsie, NY (US);
Thomas J Walsh, Poughkeepsie, NY (US);
Thomas J Walsh, III, Verbank, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29C / ; B44C / ; C23F / ;
U.S. Cl.
CPC ...
4251311 ; 15624425 ; 156656 ; 156902 ; 26417716 ; 4251335 ;
Abstract
Extrusion method and apparatus in which the liquid precursor of the extruded material is forced through a die formed by two surfaces moving in opposite directions relative to one another and transversely to the direction of material flow. Immediately upon exiting this dynamic die, the extracted material is removed as a sheet or film through a take-off system. In a preferred embodiment of the invention, the first die is formed by members rotating on a common axis in opposite rotational directions.