Unitary, integral plastic tank and rim for a toilet, and method

Details Unitary, integral plastic tank and rim for a toilet, and method Unitary, integral plastic tank and rim for a toilet, and method

1978-06-12

1979-12-04

Silbaugh, Jan H.

Baths, closets, sinks, and spittoons

Flush closet

With toilet tissue holder

4329, 4353, 264520, 264536, 264541, 425525, E03D 124, B29C 1707, B29C 1710

Patent

active

041764137

ABSTRACT:
An integral, unitary plastic tank and rim flush for a toilet are disclosed, along with the apparatus and method of manufacture. The tank includes a bottom wall and sidewalls, one of which is integral with an essentially tubular water passageway. The rim includes an oval-shaped, hollow duct which is integral with the passageway and includes a plurality of spaced openings in a bottom wall surface to distribute water around the periphery of a toilet bowl. In the method of making the product, an elongated thermoplastic parison is positioned between a pair of blow mold sections. Next, the sections are closed, enclosing respective parison portions within a tank cavity, a passageway cavity and a rim cavity. Blow fluid under pressure is introduced into the parison portion within the tank cavity, resulting in the various cavity-enclosed parison portions being blown to their final shape. After cooling, the article is removed from the mold, trimmed and drilled to form the final product.

REFERENCES:
patent: 3120679 (1964-02-01), Price et al.
patent: 3263009 (1966-07-01), Vidal
patent: 3452125 (1969-06-01), Shurman et al.
patent: 3564087 (1971-02-01), Ruekberg
patent: 3591868 (1971-07-01), Owens
patent: 3792143 (1974-02-01), Branscum et al.
patent: 3939500 (1976-02-01), Miller et al.
patent: 4070430 (1978-01-01), Confer

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