B - Operations – Transporting – 29 – D
Patent
B - Operations, Transporting
29
D
18/39
B29D 21/00 (2006.01)
Patent
CA 1220906
ONE-PIECE CAP AND BRUSH AND METHOD OF FORMING IT Abstract A container closure includes a cap for sealing a container against leakage, and a brush-like pliable member for spreading contents of the container. The cap includes a top wall, an internally threaded skirt depending from perimetrical portions of the top wall, and a stem depending from a central portion of the top wall. The brush includes a paddle-shaped member or a plurality of bristles which depend below the stem for brushing the contents of the container onto a surface. The cap and the brush are formed as a one-piece structure. A method of forming the one piece cap and brush includes the step of molding the cap using a specially configured mold which has at least three relatively movable parts for defining a mold cavity and for effecting a pop-off type of ejection of the threaded skirt from the mold once the integral cap and brush have been molded. The brush bristles can have relatively large diameters as molded, and can be elongated after molding as by stretching to reduce their diameters and to give bristles of proper pliability.
445621
Gowling Lafleur Henderson Llp
Kessler Milton
LandOfFree
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