Baths – closets – sinks – and spittoons – Flush closet – Bowl
Patent
1977-01-24
1979-03-27
Haroian, Harry N.
Baths, closets, sinks, and spittoons
Flush closet
Bowl
4421, E03D 1118
Patent
active
041457765
ABSTRACT:
Disclosed are an integral plastic bowl, waterway and trap for a toilet and the method of making the product. The bowl is concave and leads into a trap which may be interconnected with a standard closet flange. The waterway is vertically aligned with the trap and slopes downwardly from an inlet to an outlet, which is preferably at a position near the bottom interior of the bowl and which also preferably includes a wall surface in overlying alignment with at least a portion of the downwardly sloping waterway portion. During flushing, water from a reservoir flows down the waterway, against the outlet wall surface causing a vortex in the bowl, and then out of the bowl into the trap. In the method of making the product, a plastic parison is positioned between the sections of a blow mold. Next, the mold sections are closed, pinching portions of the parison shut to partially form the trap and waterway and enclosing another parison portion in a bulbous mold cavity. Blow fluid under pressure is injected into the interior of the parison to form a blown article which is then removed from the mold and trimmed to form the final product.
REFERENCES:
patent: 229326 (1880-06-01), Maddock
patent: 622205 (1899-04-01), Burnett
patent: 1224734 (1917-05-01), Gallagher
patent: 1419328 (1922-06-01), Teahen et al.
patent: 1947439 (1934-02-01), Crane et al.
patent: 3212106 (1965-10-01), Noel
patent: 3719209 (1973-03-01), Rush
Crosby Samuel C.
Price William F.
Whitney Thomas M.
Haroian Harry N.
Trayco Inc.
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