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. 14, 1992
Filed:
Oct. 26, 1990
Yutaka Okumoto, Tokyo, JP;
Makoto Kakiuchi, Tokyo, JP;
Takao Furukawa, Tokyo, JP;
Shuichi Sato, Tokyo, JP;
Japan Tobacco Inc., Tokyo, JP;
Abstract
An apparatus according to the present invention, which is used to form a large number of fine pores in the peripheral surface of each of cylindrical articles, such as cigarettes, by means of a laser beam, comprises first and second perforating disks. A plurality of retaining arms are arranged on the respective peripheral edges of these perforating disks. The cylindrical articles are held by means of these arms, and are caused to move around the disks and rotate around their own axes. The cylindrical articles are alternately supplied half and half to the two perforating disks by means of two intermediate supply rollers. Beamsplitters are located individually in the respective central portions of the perforating disks. The laser beam emitted from a laser source is split into two beam halves by means of a pre-beamsplitter, and these beam halves are delivered individually to the beamsplitters. The beam halves delivered to these beamsplitters are radially split over a range of about 180.degree., and the split beams are applied to the cylindrical articles held by means of the retaining arms.