Electricity: circuit makers and breakers – Float – Float and pressure
Reexamination Certificate
2006-06-27
2006-06-27
Friedhofer, Michael A. (Department: 2832)
Electricity: circuit makers and breakers
Float
Float and pressure
Reexamination Certificate
active
07067750
ABSTRACT:
A float switch assembly with a housing/clamping structure that is made from plastic and impervious to corrosion, with improvements over the prior art including a thumbscrew positioned between its two upper bracing protrusions and external braces/ribs that make it less likely for the two parts of the housing to flex relative to one another, to provide a more secure connection between the two parts of the present housing during its use to protect a float switch body within its protective housing for reliable shut-off signal activation when needed. The two housing parts are connected together over the top edge of a substantially vertically-extending support surface, such as a plastic condensate collection pan with a flange. Oversized thumbscrews facilitate and expedite installation without drilling any holes in the collection pan.
REFERENCES:
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patent: 4345879 (1982-08-01), Steiner
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patent: 4833441 (1989-05-01), Okada et al.
patent: 5862702 (1999-01-01), Liang
patent: 6513378 (2003-02-01), Love, Jr.
patent: 6530274 (2003-03-01), Philbeck
patent: 6681627 (2004-01-01), Li
patent: 6730865 (2004-05-01), Hernandez-Zelaya
patent: 6992260 (2006-01-01), Cantolino
Friedhofer Michael A.
Morse Dorothy S.
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