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:
May. 24, 1977
Filed:
Oct. 20, 1975
Joachim Reuland, Hamburg, DT;
Hauni-Werke Korber & Co., KG, Hamburg, DT;
Abstract
A cigarette making machine wherein discrete cigarettes travelling from the cutoff to a transfer conveyor slide along the upper side of a light transmitting guide. A photoelectric detector is mounted below and is shielded by the guide from tobacco dust which is swept away by successive cigarettes. The light source of the detector emits a light beam which passes upwardly through the guide, is reflected by successive cigarettes and thereupon passes downwardly through the guide prior to reaching the photosensitive transducer of the detector. Alternatively, the light source or the detector can be mounted above the guide and above the path of the cigarettes so that the light beam can reach the transducer after having passed through the guide only once, provided that the beam is not interrupted by the cigarettes.