Invention Grant
- Patent Title: Keypad for a wireless device
- Patent Title (中): 无线设备的键盘
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Application No.: US11863877Application Date: 2007-09-28
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Publication No.: US08836546B2Publication Date: 2014-09-16
- Inventor: Chao Chen
- Applicant: Chao Chen
- Applicant Address: CA Waterloo
- Assignee: BlackBerry Limited
- Current Assignee: BlackBerry Limited
- Current Assignee Address: CA Waterloo
- Agency: Hanley, Flight & Zimmerman, LLC
- Main IPC: H03K17/94
- IPC: H03K17/94 ; H03M11/00 ; H01H5/14 ; H01H13/705 ; G06F3/02 ; H01H13/83

Abstract:
A keypad for a wireless device is disclosed. The keypad comprises one or more key stems, each key stem having an upper key stem surface. The keypad also comprises one or more keycaps configured to be mounted over the one or more key stems, each keycap having a lower keycap surface for bonding to the upper key stem surface of each key stem with adhesive. The upper key stem surface includes at least one depression and at least one groove along a perimeter of the upper key stem surface. The depression and groove can help reduce the risk of adhesive flow to undesirable areas.
Public/Granted literature
- US20090085777A1 KEYPAD FOR A WIRELESS DEVICE Public/Granted day:2009-04-02
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