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. 25, 1985
Filed:
Mar. 22, 1983
Applicant:
Inventors:
Enzo Seragnoli, Bologna, IT;
Armando Neri, Bologna, IT;
Assignee:
G.D Societa' per Azioni, Bologna, IT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A24C / ;
U.S. Cl.
CPC ...
131281 ; 2191 / ; 2191 / ; 2191 / ; 2191 / ; 2191 / ; 2191 / ; 2191 / ; 2191 / ; 2191 / ; 2191 / ; 2191 / ;
Abstract
A method and apparatus for forming perforations in articles in the form of bars, in which, during their movement through a piercing station, the articles are pierced by means of beams of laser rays emitted in a predetermined sequence by laser emitters, which can be laser generators or simple reflectors so positioned with respect to each said article to be pierced as to maintain the path length followed by the laser rays to form each perforation, once focused, constantly equal to the focal length thereof.