Liquid purification or separation – Particulate material type separator – e.g. – ion exchange or... – With spaced non-particulate separating means
Reexamination Certificate
2007-11-06
2007-11-06
Lithgow, Thomas M. (Department: 1724)
Liquid purification or separation
Particulate material type separator, e.g., ion exchange or...
With spaced non-particulate separating means
C210S283000, C210S284000, C210S290000, C210S663000, C210S665000, C210S669000, C210S679000
Reexamination Certificate
active
10499037
ABSTRACT:
To compose a composite filter for obtaining water having a high purity usable as water for life and water for medicine from water in which impurities are mixed. Furthermore, to compose an apparatus for obtaining water having a high purity using the filter. Moreover, to configure the apparatus so as to facilitate exchange of the filter. That is, water having a high purity can be obtained by allowing raw water to permeate through a composite filter which consists of a first layer11made of fibers, a second layer12made of ion exchange resin, a third layer14made of activated carbon and a fourth layer16made of an unwoven textile. These first layer, second layer, third layer and fourth layer are configured as separate independent filters respectively so that each filter can be exchanged independently. Furthermore, different kinds of filters can be combined dependently on purposes of use.
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Furuhashi Masayoshi
Iida Masatoshi
Murayama Ryousuke
Takashima Seisuke
Iida Kensetu Co., Ltd.
Lithgow Thomas M.
Westerman, Hattori, Daniels & Adrian , LLP.
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