Reusable viscous material dispensing apparatus

B - Operations – Transporting – 67 – D

Patent

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Details

B67D 7/72 (2010.01) B67D 7/02 (2010.01)

Patent

CA 2203140

A reusable viscous material dispensing system has a sealed pressure cylinder (8) with a rounded upper region (14) with an inert gas inlet (29), and a rounded bottom region (12) with a viscous material ingress and egress opening (28). A pressurizing boat (16) has a lower, hull portion (18) which is weighted with ballast (20), and an upper portion (22). The lower hull portion (18) and upper portion (22) join along a circular interface region (26). The diameter of the circular interface region (26) is smaller than the diameter of the cylinder (8). The boat (16) floats in the cylinder filled with viscous material (23). The viscous material (23) forms a gaseous pressure seal between the interface region (26) of the boat (16) and inside of the pressure cylinder (8). Fins (24) extend radially outwardly from the interface region (26) of the pressurizing boat (16) and prevent the interface region (26) from scraping viscous material (23) off the sidewalls (10) of the cylinder (8).

Ce dispositif distributeur de matériau visqueux réutilisable comprend un cylindre (8) de compression hermétique présentant une région supérieure arrondie (14) pourvue d'une entrée (29) de gaz inerte, ainsi qu'une région inférieure arrondie (12) pourvue d'un ouverture (28) d'entrée/sortie de matériau visqueux. Une nacelle (16) de mise sous pression comporte un partie inférieure (18) de coque lestée d'un ballast (20), ainsi qu'une partie supérieure (22). La partie inférieure (18) et la partie supérieure (22) sont jointes le long d'une région d'interface circulaire (26) dont le diamètre est inférieur à celui du cylindre (8). La nacelle (16) flotte dans le cylindre rempli de matériau visqueux (23), lequel forme un joint d'étanchéité gazeux entre la région d'interface (26) de la nacelle (16) et l'intérieur du cylindre (8). Des ailettes (24) dépassent radialement de la région d'interface (26) de ladite nacelle (16) de mise sous pression et empêchent cette région (26) d'enlever en le raclant le matériau visqueux (23) présent sur les parois (10) latérales du cylindre (8).

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