Fluid handling – With casing – support – protector or static constructional... – Static constructional installations
Reexamination Certificate
2006-08-11
2010-06-15
Rivell, John (Department: 3753)
Fluid handling
With casing, support, protector or static constructional...
Static constructional installations
Reexamination Certificate
active
07735512
ABSTRACT:
A floor drain installation system includes an adaptor attached to a drain pipe projecting from the ground, a coring sleeve having a bowl-shaped upper end attached to or integral with the adaptor, and a coring plug received within the bowl of the receiver to close off the drain pipe during pouring of a concrete floor and to create a space for subsequent reception of a drain head and grate.
REFERENCES:
patent: 1648701 (1927-11-01), Smallbrook
patent: 1766621 (1930-06-01), Fleming
patent: 1792345 (1931-02-01), Williams
patent: 2501971 (1950-03-01), Schenck
patent: 3362425 (1968-01-01), Morris et al.
patent: 4146939 (1979-04-01), Izzi
patent: 4620330 (1986-11-01), Izzi, Sr.
patent: 4694513 (1987-09-01), Kiziah
patent: 4823411 (1989-04-01), Nettel
Ismert Joseph P.
Julian Frank D.
Brown Macade
Erickson Kernell Derusseau & Kleypas, LLC
Rivell John
Sioux Chief Mfg. Co., Inc.
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