发明名称 |
SMOKE DETECTORS |
摘要 |
A smoke detector incorporates a porous plastic material which carries a hydrophilic agent alone or in combination with a surfactant which can be sprayed or deposited onto structural elements of the detector. The detector can include a molded removable plastic element that carries a hydrophilic agent. The element can be arranged to surround a light beam injected into a sensing region of a photoelectric detector. |
申请公布号 |
CA2219179(A1) |
申请公布日期 |
1998.04.22 |
申请号 |
CA19972219179 |
申请日期 |
1997.10.22 |
申请人 |
PITTWAY CORPORATION |
发明人 |
SO, BERNARD Y.C.;SCHOENFELDER, GEORGE A.;DALY, JULIETTE C. |
分类号 |
G01N21/15;G01N21/53;G08B17/10;G08B17/107 |
主分类号 |
G01N21/15 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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