Fluid handling – With indicator – register – recorder – alarm or inspection means – Liquid level responsive indicator – recorder or alarm
Reexamination Certificate
2007-04-19
2010-06-22
Lee, Kevin L (Department: 3753)
Fluid handling
With indicator, register, recorder, alarm or inspection means
Liquid level responsive indicator, recorder or alarm
C137S268000
Reexamination Certificate
active
07740027
ABSTRACT:
Apparatus applies chemicals to water in an air conditioning condensate tray. It has an elongate reservoir body with an open upper end, a closed lower end, and a central cavity enclosed by an encircling wall. The central cavity receives chemicals to prevent the growth of microorganisms. A closure closes the central cavity. A tubular member is operatively connected at a first end to an aperture in the wall, and has a second end extending outwardly therefrom. The second end is constructed for receiving condensate water from the condensate tray, providing a fluid passage to the central cavity in a first mode of operation when water in the condensate tray is above a preset level; and for dispensing water to the tray from the central cavity in a second mode of operation with chemicals disposed in the water from contact within the central cavity.
REFERENCES:
patent: 2955028 (1960-10-01), Bevans
patent: 3872879 (1975-03-01), Green
patent: 7191649 (2007-03-01), Coogle
patent: 7389651 (2008-06-01), Cantolino
Blum Alvin S.
Lee Kevin L
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