Expanding crimp tool for valved dispensers and the like

Details Expanding crimp tool for valved dispensers and the like Expanding crimp tool for valved dispensers and the like

1977-01-26

1978-07-18

Gilden, Leon

29523, 113 30, 113120Y, 113121C, B21D 3700

Patent

active

041008693

ABSTRACT:
In a tool for crimping a valve mounting cup into the mouth of a dispensing can, an annular piston which moves between inner and outer cylinders presses on the upper edge of a rubber sleeve whose inner and lower surfaces are restrained by the inner cylinder and an outward extending flange at its base. Since a downward force on the piston is resisted by the base flange, the axial length of the rubber-like sleeve is shortened, causing it to bulge radially outward beneath the lower edge of the outer cylinder. This outer cylinder is positioned on the mounting cup rim. The rubber sleeve, bulging outward beneath the rim, draws the inner wall of the mounting cup radially outward to seal it onto the can.

REFERENCES:
patent: 1941195 (1933-12-01), Anderson
patent: 2254577 (1941-09-01), Nelson
patent: 2644415 (1953-07-01), Spalding
patent: 3548564 (1970-12-01), Bruce et al.
patent: 4000708 (1977-01-01), Hardt

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