Invention Grant
- Patent Title: Encapsulated switches employing mercury substitute and methods of manufacture thereof
- Patent Title (中): 采用汞替代品的封装开关及其制造方法
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Application No.: US12247136Application Date: 2008-10-07
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Publication No.: US07990241B2Publication Date: 2011-08-02
- Inventor: Marcos Hernandez , Carl Rosenblatt
- Applicant: Marcos Hernandez , Carl Rosenblatt
- Applicant Address: US MA Waltham
- Assignee: Thermo Fisher Scientific, Inc.
- Current Assignee: Thermo Fisher Scientific, Inc.
- Current Assignee Address: US MA Waltham
- Agent Charles B. Katz
- Main IPC: H01H9/00
- IPC: H01H9/00 ; H01H51/22 ; H01H29/00
Abstract:
Encapsulated switches are disclosed which substitute non-toxic gallium alloy for mercury. In one embodiment, wetting of the interior surfaces of the housing is prevented by coating the surfaces with an electrically insulative inorganic non-metallic material, such as alumina or boron nitrate. According to another embodiment, a perfluorocarbon liquid is employed as the anti-wetting agent.
Public/Granted literature
- US20090184788A1 ENCAPSULATED SWITCHES EMPLOYING MERCURY SUBSTITUTE AND METHODS OF MANUFACTURE THEREOF Public/Granted day:2009-07-23
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