PAN AND TILT HEADS HAVING DUAL DAMPING
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United States of America Patent
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Issued Date -
Oct 14, 2010
app pub date -
Apr 2, 2010
filing date -
Apr 9, 2009
priority date (Note) -
Abandoned
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Abstract
A pan and tilt head provides rotation for a T.V., video or cine camera supported on the head in pan and tilt axes. The head has first rotary damping means for controlling pan movement of the head and second rotary damping means for controlling tilt movement of the head. Both rotary damping means comprises a first rotary damper which generates a rotary damping torque which increases at a progressively reducing rate with angular velocity and a second rotary damper which generates a rotary damping torque which increases linearly with angular velocity. For each axis of movement of the head, one of the rotary dampers provides a permanent damping mode and the other rotary damper provides a selectable damping mode. A mechanism is provided for coupling the rotary dampers together in parallel to combine the damping torques imposed on movement of the head when required.
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