Package making – Closing packages and filled receptacles – Separate closure applying
Patent
1976-03-04
1976-12-21
McGehee, Travis S.
Package making
Closing packages and filled receptacles
Separate closure applying
53351, 53363, B65B 728, B67B 314
Patent
active
039980324
ABSTRACT:
A hand-held tool for crimping a cap on a bottle includes a handle with a lever member pivotally connected to one end thereof to move a plunger between advanced and retracted positions within a housing depending from the handle. Within the housing are a plurality of die segments for gripping around the neck of the bottle to crimp the lower edge of the cap beneath the lip of the bottle when the plunger is moved into its advanced position. Telescoped on the upper end portion of the plunger is a coil spring whose upper end urges against an annular shoulder formed around the upper end portion of the plunger and whose lower end engages a circular disk and urges the disk downwardly on the plunger. An annular skirt depends from the disk and includes an inner, generally frustoconical wall surface mating with a similarly shaped outer surface formed on the upper end portions of the die segments. Secured to the lower end of the plunger is an enlarged head and a free sliding collar is telescoped onto the rod between the disk and the head. The collar extends radially outward from the plunger and extends into an annular groove formed within the inner wall of the segments. A spring ring telescoped over the enlarged head seats within an annular recess formed in the die segments below the groove and urges the segments radially away from each other into a normally open position. The lower end portions of the segments are curled radially inward and include curved inner and outer wall surfaces. The outer wall surface is a cam surface which is adapted to ride across a second cam surface defining the lower opening of the housing thereby closing the die segments. Once the die segments are closed, continued downward movement of the plunger presses against the cap and causes the inner wall surface to engage the lower edge of the cap, thereby bending the latter inwardly beneath the lip of the bottle to secure the cap on the bottle. In a modified form of the invention, with the die segments closed, an acute included angle measured between the inner frustoconical wall surface of the disk and the axis of the plunger is greater than the corresponding included angle measured between the axis of the plunger and the outer frustoconical wall surface of the die segments. When the lever member is released, the coil spring urges the disk downwardly relative to the die segments so that the inner frustoconical wall surface cams against the outer wall surface of the die segments to spread the segments.
REFERENCES:
patent: 946138 (1910-01-01), Kirkegaard
patent: 1141267 (1915-06-01), Ray et al.
patent: 1305752 (1919-06-01), Stone
patent: 1954737 (1934-04-01), Kowal
patent: 2087251 (1937-07-01), Gough
patent: 2643805 (1953-06-01), Muller-Strobel
patent: 3672121 (1972-06-01), Kawaminani
Culver Horace M.
McGehee Travis S.
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