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:
Apr. 11, 1995
Filed:
Oct. 18, 1993
Applicant:
Inventors:
Werner Psiuk, Hanover, DE;
Michael Reuter, Brunswick, DE;
Assignee:
Friedrich Theysohn GmbH, Bad Oeynhausen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B05D / ; B23K / ;
U.S. Cl.
CPC ...
427597 ; 148525 ; 21912166 ; 427561 ;
Abstract
A coating of at least 71% by weight molybdenum as applied to the steel base body of a worm or screw for a plastifier or extruder for plastic materials and synthetic resin by introducing the coating material into a laser beam and directing the thus melted coating material and the laser beam onto the surface of the worm or screw to be coated. The melt-metallurgical bond is formed between the coating without distortion or crack formation of the base body.