Flexible mold and process

Details Flexible mold and process Flexible mold and process

1976-09-07

1977-10-25

Hoag, Willard E.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

Shaping against forming surface

264335, 425DIG44, B29C 500, B29C 700, B29D 2300

Patent

active

040556204

ABSTRACT:
A flexible mold and process is provided for making pots, and the like, the mold comprising a cylindrical-shaped rubber-like resilient member having an annular-shaped cavity contained therein, and an open top. The construction of the mold is such the pressurized air may be introduced into the cavity to move the outer peripheral portion of the mold radially outwardly to release the part being molded. A nail, or similar article may be inserted into the central part of the mold to protrude through the open top of the mold along the central axis thereof. The nail causes a hole to be formed in the bottom of the article being molded which serves as a water hole when flower pots, for example, are being molded, and which also provides a convenient hole through which the releasing pressurized air may be introduced into the mold cavity.

REFERENCES:
patent: 3353220 (1967-11-01), Lenoble
patent: 3355534 (1967-11-01), Groff
patent: 3390881 (1967-07-01), Senne
patent: 3705248 (1972-12-01), Hill et al.
patent: 3755522 (1973-08-01), Jope et al.
patent: 3998422 (1976-12-01), Putzer

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