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:
Sep. 22, 1992
Filed:
Jun. 09, 1989
Applicant:
Inventor:
Hugh M Arthur, Aylesbury, GB;
Assignee:
Molins plc, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A24C / ; B23K / ;
U.S. Cl.
CPC ...
131281 ; 2191217 ; 21912171 ;
Abstract
Laser perforation apparatus for filter cigarettes includes a drum (10) for conveying cigarettes (11), bands (33, 34) for slowly rotating each cigarette as it is conveyed by the drum, and a laser beam deflector (21, 22) carried by a tubular member (19) coaxially and rotatably mounted relative to the drum, the tubular member being rotated at relatively high speed and the laser being pulsed so that successive pulses are directed by the deflector towards successive cigarettes and each cigarette thus has a number of perforations formed in its wrapper as it is conveyed between the drum and the bands.