US 12,478,092 B2
Method and device for examining rod-shaped products of the cigarette industry
Michael Czarnotta, Bremen (DE); and Karl-Heinz Breithaupt, Dörverden (DE)
Assigned to Focke & Co. (GmbH & Co. KG), Verden (DE)
Appl. No. 17/799,152
Filed by Focke & Co. (GmbH & Co. KG), Verden (DE)
PCT Filed Feb. 17, 2021, PCT No. PCT/EP2021/053860
§ 371(c)(1), (2) Date Aug. 11, 2022,
PCT Pub. No. WO2021/165303, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 102020001136.5 (DE), filed on Feb. 21, 2020.
Prior Publication US 2023/0073296 A1, Mar. 9, 2023
Int. Cl. A24C 5/34 (2006.01); A24D 3/02 (2006.01); B65B 19/20 (2006.01); B65B 19/30 (2006.01); G01N 21/01 (2006.01); G01N 21/47 (2006.01); G01N 33/00 (2006.01)
CPC A24C 5/3412 (2013.01) [A24D 3/0216 (2013.01); A24D 3/0295 (2013.01); B65B 19/20 (2013.01); B65B 19/30 (2013.01); G01N 21/01 (2013.01); G01N 21/4738 (2013.01); G01N 2021/4735 (2013.01); G01N 33/0078 (2024.05)] 21 Claims
OG exemplary drawing
 
1. A method for examining rod-shaped products (11) of the cigarette industry, each having a cylindrical lateral surface (22) and two end faces (23, 24), which are arranged at opposite ends, wherein the rod-shaped product (11) has smokable material, between the two end faces (23, 24), comprising the steps of:
a) irradiating the lateral surface (22) of at least one rod-shaped product (11) of a product group (10) made of the rod-shaped products (11) to be examined, wherein the product group (10) has two or more product layers (16) of the rod-shaped products (11) each arranged adjacent to one another in a row, the end faces (23, 24) of which each form one of two opposite product group sides at their opposite ends, using examination light in such a way that the examination light penetrates through the lateral surface (22) at least partially into the rod-shaped product (11) and at least partially exits again through one end face (23, 24);
b) acquiring the examination light exiting from the end face (23, 24) of the rod-shaped product (11) to be examined using an electro-optical receiver for the examination light assigned to the end face (23, 24), the main viewing direction of which is directed onto the end face (23, 24); and
c) evaluating the examination light exiting from the end face (23, 24) and acquired by the electro-optical receiver.