Liquid purification or separation – Structural installation – Closed circulating system
Reexamination Certificate
1999-03-29
2001-09-11
Smith, Duane (Department: 1724)
Liquid purification or separation
Structural installation
Closed circulating system
C210S279000, C210S284000, C210S288000
Reexamination Certificate
active
06287462
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates to water treatment devices and more particularly to water sanitizers utilizing an antimicrobial media such as silver-coated ceramic beads. The present invention may be utilized as a sanitizer for swimming pools in conjunction with a pool filter.
BACKGROUND OF THE INVENTION
Water sanitizers using antimicrobial media are known in the art. Typically, these types of sanitizers are provided as independent, separately plumbed units which hold the sanitizing media in the flow path of the water to be treated. In such installations, the sanitizers are usually plumbed after the filter so that only clean, filtered water passes through the sanitizing media. This prevents fouling of the sanitizing media with contaminants present in the water. Vessels for holding the sanitizing media can be fairly expensive due to the need to resist internal pressure and the need for a pressure tight access cover. In addition, a separate sanitizer vessel requires additional space, and can increase product and installation costs. To limit the flow restriction caused by passing fluid at a high flow rate through sanitizing media, these devices commonly use some type of a fluid bypass. Unfortunately, this limits the amount of fluid that actually contacts the media.
A need remains, therefore, for conveniently and economically providing a sanitizer to work in conjunction with a variety of filter systems.
SUMMARY OF THE INVENTION
The problems and disadvantages associated with the conventional techniques and devices utilized to sanitize fluids are overcome by the present invention which involves a sanitizer adapted for positioning within a filter. The sanitizer includes a housing with an inner wall at least partially enclosing an inner hollow. An outer wall is spaced from the inner wall so as to form a chamber therebetween. Sanitizing media is contained within the chamber. The housing has a plurality of openings therein to allow fluid flowing through the filter to pass through the housing and contact the sanitizing media.
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H-Tech, Inc.
Lawrence Frank M.
Selitto Behr & Kim
Smith Duane
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