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1. WO1996022528 - EGG CANDLING SYSTEM

Publication Number WO/1996/022528
Publication Date 25.07.1996
International Application No. PCT/CA1996/000010
International Filing Date 16.01.1996
IPC
G01N 21/952 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
84Systems specially adapted for particular applications
88Investigating the presence of flaws, defects or contamination
95characterised by the material or shape of the object to be examined
952Inspecting the exterior surface of cylindrical bodies or wires
G01N 33/08 2006.1
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
02Food
08Eggs, e.g. by candling
CPC
A01K 43/04
AHUMAN NECESSITIES
01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
KANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
43Testing, sorting or cleaning eggs
04Grading eggs
G01N 21/951
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
84Systems specially adapted for particular applications
88Investigating the presence of flaws or contamination
95characterised by the material or shape of the object to be examined
951Balls
G01N 2201/1045
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
2201Features of devices classified in G01N21/00
10Scanning
104Mechano-optical scan, i.e. object and beam moving
1045Spiral scan
G01N 33/085
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
02Food
08Eggs, e.g. by candling
085by candling
Y10S 209/938
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
10TECHNICAL SUBJECTS COVERED BY FORMER USPC
STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
209Classifying, separating, and assorting solids
938Illuminating means facilitating visual inspection
Applicants
  • WEICHMAN, Frank, L. [CA]/[CA]
  • VAN DER SCHOOT, Jelle [NL]/[NL]
  • KENWAY, Daniel, J. [CA]/[CA]
  • HUGHES, Alan, J. [CA]/[CA]
  • FLATMAN, Carl, S. [CA]/[CA]
Inventors
  • WEICHMAN, Frank, L.
  • VAN DER SCHOOT, Jelle
  • KENWAY, Daniel, J.
  • HUGHES, Alan, J.
  • FLATMAN, Carl, S.
Agents
  • PARSONS, Jane
Priority Data
08/373,15817.01.1995US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) EGG CANDLING SYSTEM
(FR) SYSTEME POUR EXAMINER LES OEUFS PAR TRANSPARENCE
Abstract
(EN) A light beam (16) such as a laser beam is used to scan the surface of an egg for flaws such as pin holes, cracks, thinned shell regions, etc. The light beam is vibrated with a rocking/rotating movement to describe a closed curve (52) such as a circle, ellipse or an ellipse so narrow that it is effectively a straight line. The utilisation of such a light beam allows identification of types of flaws due to the character of the progression of light emanating from the egg. The invention includes apparatus for rotating the egg about its longitudinal axis in the path of the beam or beams. The apparatus also includes means for forming the vibrating beam such as mirrors (18) vibrated by out of phase electro-magnetic vibration, piezoelectric actuators (20) or other means.
(FR) On utilise un faisceau de lumière (16) tel qu'un faisceau laser pour scanner la surface d'un oeuf pour détecter des défauts tels que des trous ponctuels, des craquelures, des parties de coque trop minces, etc. On fait vibrer le faisceau lumineux avec un mouvement d'oscillation/rotation en forme de courbe fermée (52) du type cercle, ellipse ou ellipse très étroite au point de constituer une ligne. L'utilisation d'un tel faisceau lumineux permet l'identification du type du défaut, grâce à l'examen de la nature de la lumière sortant de l'oeuf. L'invention concerne également un appareil pour faire tourner l'oeuf autour de son axe longitudinal dans le ou les faisceaux de lumière. L'appareil comporte également un moyen pour former le faisceau vibrant, comme par exemple des miroirs (18) qui vibrent sous l'effet de vibrations électromagnétiques déphasées, des éléments piézo-électriques (20) ou d'autres moyens.
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