Invention Grant
- Patent Title: Two-stage switch assembly
- Patent Title (中): 两级开关总成
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Application No.: US13529684Application Date: 2012-06-21
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Publication No.: US08378240B2Publication Date: 2013-02-19
- Inventor: Vijai Rajagopal , James Infanti , Firmansyah Sulem , Timothy Kyowski
- Applicant: Vijai Rajagopal , James Infanti , Firmansyah Sulem , Timothy Kyowski
- Applicant Address: CA Waterloo
- Assignee: Research In Motion Limited
- Current Assignee: Research In Motion Limited
- Current Assignee Address: CA Waterloo
- Agency: Blake, Cassels & Graydon LLP
- Agent Wilfred P. So; Brett J. Slaney
- Main IPC: H01H9/00
- IPC: H01H9/00

Abstract:
A switch assembly is provided to actuate a pair of switches using a single push key, e.g. for a camera that utilizes a first switch to activate an image focusing function and a second switch to activate a camera shutter. The switch assembly comprises a contact pad switch and a dome switch that are located laterally to one another. When the push key receives a first downward force, only the contact pad switch becomes activated and a first electric circuit is completed. When the push key receives a second downward force that is greater than the first force, the dome switch collapses and a second electric circuit is completed.
Public/Granted literature
- US20120257098A1 Two-Stage Switch Assembly Public/Granted day:2012-10-11
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