B - Operations – Transporting – 65 – D
Patent
B - Operations, Transporting
65
D
222/79
B65D 83/14 (2006.01) B05C 17/005 (2006.01) B05C 17/01 (2006.01)
Patent
CA 2000659
ABSTRACT OF THE DISCLOSURE Apparatus for extruding the stored fluid contents of a cylindrical cartridge having a side wall defining dual chambers separated by a longitudinal partition wall includes a cylindrical tube having a closed end wall and an open end with a bevelled edge. A pair of semicylindrical sleeve pistons are coaxially positioned in spaced parallel relation within the tube with the space between the pistons being coplanar with the partition wall to permit sliding the tube longitudinally along the external periphery of the cartridge. The pistons are each mounted on the closed end wall within the tube and include upstanding free ends which are adapted to engage corresponding slidable semicircular plungers that function as seals within corresponding chambers of the cartridge. Both the cartridge and cylindrical tube are inserted into the hollow body of a conventional caulking gun wherein external mechanical pressure is applied to the closed end of the tube. As the tube slides forwardly along the cartridge in closely fitting relation therewith, the side wall of the latter is prevented from expanding due to internal pressures and the contents are expelled through a pair of outlet openings in accurately predetermined quantities.
Maderag Corporation
Maeder August
LandOfFree
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