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:
Mar. 08, 1988
Filed:
Mar. 14, 1986
Riccardo Mattei, Bologna, IT;
G.D Societa' Per Azioni, Turin, IT;
Abstract
A cigarette manufacturing machine having a shredded tobacco supply unit, a unit for wrapping the shredded tobacco, an air permeable conveyor belt extending from the supply unit and the wrapping unit for transferring a continuous layer of tobacco held by vacuum on the belt to the wrapping unit; the supply unit comprising a down-flow duct for shredded tobacco, a well communicating with the bottom end of the down-flow duct, and an up-flow duct for the tobacco; the bottom end of the up-flow duct communicating with the well, and the top end of the up-flow duct being closed by the belt; and separating apparatus for separating unsuitable particles from the shredded tobacco for cigarette manufacture, with the separating apparatus having a duct substantially in the shape of an upside-down U; a tubular connection extending between the U-shaped duct and the well; a first end of the U-shaped duct communicating with a dump, and a second end of the U-shaped duct communicating with the down-flow duct.