Title:
SATURATION LIMITED FEEDER FOR CHEMICAL ADDITIONS
Document Type and Number:
WIPO Patent Application WO/2014/074827
Kind Code:
A3
Abstract:
A chemical feed method and apparatus that uses the solubility limit of a specific chemical to provide a measured dose. The invention includes a container of a specific volume into which a solid chemical is placed and held. The chemical dissolves until it approaches its solubility limit. When the system requires a dose of chemical, the container is flushed and a controlled dose of the chemical is fed in to the system. The invention can be combined with kinetic dissolution to allow a larger dose from a given feeder.
Inventors:
LANE JOHN W (US)
FERRARI SARAH L (US)
FERRARI SARAH L (US)
Application Number:
PCT/US2013/069163
Publication Date:
October 30, 2014
Filing Date:
November 08, 2013
Export Citation:
Assignee:
EVAPCO INC (US)
International Classes:
C02F1/50; C02F1/76; E03B11/00
Foreign References:
| US20040154984A1 | 2004-08-12 | |||
| US20120067829A1 | 2012-03-22 | |||
| US20090304868A1 | 2009-12-10 | |||
| US20030077365A1 | 2003-04-24 | |||
| US20020084228A1 | 2002-07-04 | |||
| US5919374A | 1999-07-06 |
Other References:
See also references of EP 2917155A4
Attorney, Agent or Firm:
DAVIS, Peter et al. (Taylor & Preston LLPSeven Saint Paul Stree, Baltimore Maryland, US)
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