EP 0790006 A3 19990609 - Method and apparatus for determining the density of a rod in the tobacco industry
Title (en)
Method and apparatus for determining the density of a rod in the tobacco industry
Title (de)
Verfahren und Vorrichtung zum Bestimmen der Dichte eines Faserstrangs der tabakverarbeitenden Industrie
Title (fr)
Procédé et dispositif pour déterminer la densité d'un boudin dans l'industrie du tabac
Publication
Application
Priority
DE 19605618 A 19960215
Abstract (en)
[origin: EP0790006A2] The method involves detecting the intensity of X-rays (8) passing though a cigarette chord (6) and processing (16) the resulting intensity signal into a signal representing the density of the chord. The intensity of the X-rays is separately detected at a number of different heights on the chord. Measurement signals (S1 - Sn) representing the detected intensities are processed to form a single density signal (17). At each chord height position the intensity of a part of the X-rays passing though a section with negligible density inhomogeneity is detected.
IPC 1-7
IPC 8 full level
A24C 5/34 (2006.01); A24D 3/02 (2006.01); G01N 23/08 (2006.01)
CPC (source: EP US)
A24C 5/3412 (2013.01 - EP US)
Citation (search report)
- [AD] US 4865052 A 19890912 - HARTMANN WERNER [DE], et al
- [AD] US 4785830 A 19881122 - MOELLER HENNING [DE], et al
- [AD] US 3056026 A 19620925 - BIGELOW JOHN E
- [AD] US 4424443 A 19840103 - REULAND JOACHIM [DE]
Designated contracting state (EPC)
DE ES FR GB IT SE
DOCDB simple family (publication)
EP 0790006 A2 19970820; EP 0790006 A3 19990609; EP 0790006 B1 20020417; DE 19605618 A1 19970821; DE 59707008 D1 20020523; ES 2173348 T3 20021016; JP H09224632 A 19970902; US 5762075 A 19980609
DOCDB simple family (application)
EP 97101524 A 19970131; DE 19605618 A 19960215; DE 59707008 T 19970131; ES 97101524 T 19970131; JP 3083297 A 19970214; US 79794697 A 19970212