Sink flange ring installation tool

Metal working – Means to assemble or disassemble – Means comprising hand manipulatable tool

Reexamination Certificate

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Details

C029S268000, C029S255000

Reexamination Certificate

active

07921532

ABSTRACT:
A tool for installing a retainer ring onto the lower portion of a loosely inserted drain fitting for engaging a mounting flange thereto includes a generally resilient cup structure provided with a plurality of axially aligned and resiliently cantilevered peripherally adjacent strips within which the retaining ring is received in a compressed engagement seated on a helical interior shoulder. A threaded rod extends through a centering plug received in the drain fitting and then through the cup interior to axially advance the axially aligned ring carried by the strips.

REFERENCES:
patent: 3158923 (1964-12-01), Reinsma
patent: 3219397 (1965-11-01), Heldenbrand et al.
patent: 3711874 (1973-01-01), Gajer
patent: 3982703 (1976-09-01), Meyers
patent: 5177853 (1993-01-01), Herook
patent: 5540582 (1996-07-01), Catalanotti et al.
patent: 5560052 (1996-10-01), Ferguson et al.
patent: 6993816 (2006-02-01), Greenhill
patent: 7024743 (2006-04-01), Heaton
patent: 7140086 (2006-11-01), Heaton
patent: 7185408 (2007-03-01), Keith
patent: 2003/0192162 (2003-10-01), Ramirez
patent: 2009/0199382 (2009-08-01), Heaton

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