Method and apparatus for drying sprinkler piping networks

Details Method and apparatus for drying sprinkler piping networks Method and apparatus for drying sprinkler piping networks

2011-04-12

2011-04-12

Gravini, Stephen M. (Department: 3743)

Drying and gas or vapor contact with solids

Process

Gas or vapor pressure is superatmospheric

C034S497000, C034S090000, C169S016000, C062S093000, C095S090000, C096S415000, C096S243000

Reexamination Certificate

active

07921577

ABSTRACT:
A sprinkler system and a method for mitigating scaling, microbiological influenced corrosion and oxidative corrosion are disclosed. The system includes a piping network in fluid communication with a source of pressurized water and an air pump. The network is vented to the ambient. The air pump moves initially dry ambient air through the system, either by maintaining a negative or a positive air pressure within the network. The dry air absorbs residual water within the network and exhausts it to the ambient. Rate of air flow through the system is controlled by restrictor elements such as orifices, throttle valves or venturies within the piping network.

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U.S. Appl. No. 11/851,782, filed Sep. 7, 2007, “Method and Apparatus for Drying Sprinkler Piping Networks” (Reilly et al).

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