Invention Grant
- Patent Title: Equipment rack
- Patent Title (中): 设备架
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Application No.: US142667Application Date: 1998-12-04
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Publication No.: US5975315APublication Date: 1999-11-02
- Inventor: Alan Jordan
- Applicant: Alan Jordan
- Applicant Address: CAX Montreal
- Assignee: Northern Telecom Limited
- Current Assignee: Northern Telecom Limited
- Current Assignee Address: CAX Montreal
- Main IPC: F16F15/04
- IPC: F16F15/04 ; H04Q1/14 ; H05K7/18 ; A47F5/00
Abstract:
An equipment rack has a strengthened base and folded side members to provide Zone 4 earthquake protection. When the rack is mounted on a support surface, the mounting bolts securing the rack are overtightened so as to distort the base member and thus prestress the structure. This improves rigidity when the rack is subjected to earthquake vibration.
Public/Granted literature
- US5517085A Apparatus including ring-shaped resonators for producing microwave plasmas Public/Granted day:1996-05-14
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