发明名称 |
SOUNDER ASSEMBLY FOR A PERSONAL ALERT SAFETY SYSTEM |
摘要 |
A sounder assembly is provided for a personal alert safety system (PASS). The sounder assembly includes a housing and a piezoelectric assembly compressively held in the housing such that a sound chamber is defined by the housing and the piezoelectric assembly. The housing radially expands and contracts relative to the piezoelectric assembly based on temperature changes. |
申请公布号 |
WO2008150543(A3) |
申请公布日期 |
2009.07.23 |
申请号 |
WO2008US07052 |
申请日期 |
2008.06.04 |
申请人 |
SCOTT TECHNOLOGIES, INC.;LANDIS, JEFFREY, L. |
发明人 |
LANDIS, JEFFREY, L. |
分类号 |
G10K9/122 |
主分类号 |
G10K9/122 |
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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