Invention Grant
- Patent Title: Frictional pivots for gravitational alignment
- Patent Title (中): 重力对齐的摩擦枢轴
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Application No.: US12787640Application Date: 2010-05-26
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Publication No.: US08068221B2Publication Date: 2011-11-29
- Inventor: Nigel Emlyn Williams
- Applicant: Nigel Emlyn Williams
- Applicant Address: GB Melbourn, Royston, Hertfordshire
- Assignee: TONEJET Limited
- Current Assignee: TONEJET Limited
- Current Assignee Address: GB Melbourn, Royston, Hertfordshire
- Priority: GB0404509.2 20040227
- Main IPC: G02B27/32
- IPC: G02B27/32
Abstract:
A frictional pivot 100 for use in a device measuring gravitational alignment is provided. The frictional pivot 100 comprises a gravity-responsive directional means 200 for indicating a datum direction of alignment with gravity; frictional pivoting means 300, 400 for allowing the gravity-responsive means coarsely to align with gravity; vibration means 303, 403 for vibrating one or more elements of the pivoting means; and portable power means 303a for powering the vibration means 303, 403.
Public/Granted literature
- US20110010953A1 Frictional Pivots for Gravitational Alignment Public/Granted day:2011-01-20
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