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. 21, 1992
Filed:
Oct. 17, 1991
Davide Dall'osso, Bologna, IT;
Bruno Belvederi, San Martino di Monte San Pietro, IT;
G. D. Societa per Azioni, Bologna, IT;
Abstract
In a device ensuring safety and protection around the unit by which a cigarette rod is dried and sealed in cigarette manufacturing machinery, a hinged guard is positioned alongside the area of the machine where the heat plate of the drying and sealing unit moves and operates; the guard is capable of movement between a shut position denying access to the operating area and a position whereby access is afforded to the area. A microswitch senses when the guard is in the shut position, denying access to the operating area, and relays an enabling signal to the control valve piloting the cylinder by which the heat plate is lowered, only when the guard is in this same safe position.