Refrigeration – With means preventing or handling atmospheric condensate... – Retainer or flow director for atmospheric condensate
Reexamination Certificate
2000-05-30
2001-10-16
Doerrler, William (Department: 3744)
Refrigeration
With means preventing or handling atmospheric condensate...
Retainer or flow director for atmospheric condensate
C137S625470, C137S240000
Reexamination Certificate
active
06301917
ABSTRACT:
STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT
Not applicable
REFERENCE TO A “MICROFICHE APPENDIX”
Not applicable
BACKGROUND OF THE INVENTION
1. Field of the Invention
The apparatus of the present invention relates to air conditioner maintenance.
2. General Background of the Invention
Air conditioner condensate piping periodically have tendency to malfunction due to water flow restriction caused mostly by dirt sediment and algae buildup. The preventative maintenance is to keep air filters clean and if accumulation are present, add household Clorox or equivalent to piping. The remedy or procedure, to eliminate the restriction would be to pressure the piping and blow out the matter causing the flow restriction.
To gain access to the internal area of the piping system for repair, it is usually necessary to cut the piping, insert an air hose connected to a pressure content. Then, after clearing the restriction, the piping must be repaired. This procedure takes time, labor and is undesirable.
To incorporate chemical as a preventive means, an access to the inner area of the piping must also be achieved. This usually consists of cutting the existing piping system or installing at original installation a tee fitting with a short nipple riser and a cover (cap). This procedure will then allow chemical maintenance, but will not allow a means to blow down in event of a restrictive inner buildup.
BRIEF SUMMARY OF THE INVENTION
The condensate maintenance mate will allow quick and easy access to perform to both events noted above; i.e., repair and maintenance. What is provided is a device easily installed in a condensate line, of an air conditioning system, a) to allow convenient maintenance by adding a chemical to dissolve algae; b) to allow convenient access for an air pressure source to blow down nuisance restrictive matter that blocks condensate water flow.
The device body (tee section) is in alignment with the main condensate flow. The device has a three way position which allows normal water flow from evaporation to main drain, then air flow in two positions, one position at a time for air pressure directed to evaporator and a second position, air pressure directed to the main drain. To make this functionable, the physical design is as follows: a) A handle is necessary to select the desired function - air - drain - air; b) An access to add chemical or air pressure to system. This is accomplished by partially hollowing the inside of the handle allowing entrance of chemical (for maintenance) and air pressure (for repairs).
REFERENCES:
patent: 3845779 (1974-11-01), Greene
patent: 4629128 (1986-12-01), Lawrence
patent: 5722458 (1998-03-01), Potter
patent: 5964238 (1999-10-01), Junkin
patent: 6041611 (2000-03-01), Palmer
patent: 6068023 (2000-05-01), Potter
Doerrler William
Garvey, Smith, Nehrbass & Doody LLC
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