发明授权
- 专利标题: Freeze resistant water filter
- 专利标题(中): 防冻滤水器
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申请号: US11758841申请日: 2007-06-06
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公开(公告)号: US07708148B2公开(公告)日: 2010-05-04
- 发明人: Karl Fritze
- 申请人: Karl Fritze
- 申请人地址: US MN St. Paul
- 专利权人: 3M Innovative Properties Company
- 当前专利权人: 3M Innovative Properties Company
- 当前专利权人地址: US MN St. Paul
- 代理商 Aleksander Medved
- 主分类号: B01D27/08
- IPC分类号: B01D27/08
摘要:
A freeze resistant filter cartridge assembly, includes a filter cartridge including a filter housing and a filter media and having at least one component selected from a list of components including: the filter housing being formed of an increased elasticity polyolefin polymer having elongation and glass transition properties that allow for stretching of the housing during a freezing event rather than rupturing; a sleeve having a volume of air entrapped therein within and being disposed in the interior of the filter cartridge; and the filter housing formed of a conventional polyolefin having a wall thickness great enough to resist freeze induced expansion stresses. A method of forming a freeze resistant filter cartridge assembly is further included.
公开/授权文献
- US20070278148A1 FREEZE RESISTANT WATER FILTER 公开/授权日:2007-12-06
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