Industrial syringe

B - Operations – Transporting – 67 – D

Patent

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Details

B67D 99/00 (2010.01) B05C 17/005 (2006.01) B05C 17/01 (2006.01) G01F 11/02 (2006.01) G01F 11/04 (2006.01)

Patent

CA 2248696

A syringe is disclosed having an elongated cylindrical tube (12) open at both a first and second end. The first open end of the tube provides both a filling and dispensing opening (16) for the contents of the tube. A cylindrical piston (26) is slidably mounted within the tube and has a first axial end facing the fill and dispensing opening and a second axial end facing the opposite or second opening. The piston has an outside diameter slightly smaller than the inside diameter of the tube so that an annular clearance space (36) is formed bewteen the tube and the piston. A wiper (38) extends radially outwardly from the second end of the piston and frictionally engages the cylindrical internal surface of the tube. A novel tamper evident cap (42) is also disclosed for closing the second end of the tube.

Cette invention concerne une seringue qui se compose d'un tube cylindrique et allongé (12) ouvert à chacune de ses deux extrémités. La première extrémité ouverte du tube comprend une ouverture assurant tant le remplissage du tube que la distribution (16) de son contenu. Un piston cylindrique (26), qui est monté coulissant à l'intérieur du tube, possède une première extrémité axial faisant face à l'ouverture de remplissage et de distribution, ainsi qu'une seconde extrémité axiale faisant face à la seconde ouverture ou ouverture opposée. Le piston possède un diamètre externe légèrement inférieur au diamètre interne du tube, ceci de manière à définir un jour annulaire (36) entre le tube et le piston. Un balai (38), qui s'étend radialement et vers l'extérieur depuis la seconde extrémité du piston, entre en contact par friction avec la surface interne et cylindrique du tube. Cette invention concerne également un nouveau bouchon témoin d'effraction (42) servant à fermer la second extrémité du tube.

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