发明名称 |
Filter media for use in pool filters |
摘要 |
A sand filter for use with swimming pools includes a tank that has a hollow interior space and a top diffuser for allowing spent pool water to enter the tank and for distributing the pool water inside the tank. The sand filter also includes filter media formed as a bed of material on a bottom of the tank and also includes laterals that are located under the filter media and allow filtered pool water to exit the tank and flow back to the pool. The filter media includes a bed of sand that is disposed on the bottom of the tank and a layer of perlite material that is disposed on a top surface of the bed of sand. The perlite material is a high flow rate, low density perlite material that only contains a trace amount of floaters.
|
申请公布号 |
US8404112(B2) |
申请公布日期 |
2013.03.26 |
申请号 |
US20100839640 |
申请日期 |
2010.07.20 |
申请人 |
GAUDIN RAY;INDUSTRIAL INSULATION GROUP, LLC |
发明人 |
GAUDIN RAY |
分类号 |
B01D24/12;B01D24/14;E04H4/12 |
主分类号 |
B01D24/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|