Method of filling a cosmetic container with push-up actuator

Details Method of filling a cosmetic container with push-up actuator Method of filling a cosmetic container with push-up actuator

1980-10-16

1986-11-11

Coven, Edward M.

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including means to advance material

220200, 29447, B43K 2100

Patent

active

046219358

ABSTRACT:
A method for filling a container for a cosmetic which initially is in a heated liquefied state and which assumes a solid form at ambient temperature. The container includes an open-ended cylindrical case whose bottom end is provided with a lip acting as an end stop with respect to a piston-type actuator slidable therein, the upper portion of this case being threaded to receive a screw-on cap within which is nested a removable filling cup which closes the top end of the case. The actuator is provided with a filling hole making it possible when the actuator occupies its stop position to fill the container from the bottom with the liquefied cosmetic. When the liquefied cosmetic filling the container solidifies, it forms a solid column therein that is seated on the actuator and is raised thereby. The actuator hole is sealed by a plug of a material having a high thermal coefficient of expansion, the plug being deposited in the hole in a cold state in which its diameter is slightly less than that of the hole. When at ambient temperature, the plug then has an enlarged diameter causing it to tightly fit within the hole to provide an intimate seal therefor.

REFERENCES:
patent: 2250045 (1941-07-01), Focke et al.
patent: 3305082 (1967-02-01), Orr
patent: 3443874 (1969-05-01), Pelli et al.
patent: 4037754 (1977-07-01), Wilhelmi et al.
patent: 4049151 (1977-09-01), Schneiso
patent: 4133094 (1979-01-01), Stofford
Oberg et al, Machinery's Handbook, 20th Edition, 1978, p. 1549.

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