Friction cylinder for a support device
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United States of America Patent
Stats
-
Mar 21, 2006
Grant Date -
May 6, 2004
app pub date -
Oct 31, 2002
filing date -
Oct 31, 2002
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A positionable support device includes a friction cylinder as a counterbalance in place of conventional gas springs. The support device includes a support arm pivotally secured between two endcaps to allow for vertical movement, the first endcap being mounted to a support structure such as a wall or desktop, the second endcap adapted to engage a mounting element for a device such as an electronic device. A friction cylinder is pivotally attached at one end to the first endcap, and at the other to an outward portion of the support arm. The friction cylinder includes a tubular member open at one end for receiving a friction bushing and a shaft. The friction bushing is secured to the tubular member and has a central passage which allows the shaft to slide through the friction bushing, extending and retracting in relation to the tubular member. The friction bushing is adjusted to apply frictional resistance to movement of the shaft sufficient to support the weight of the support device and the electronic device, thereby allowing the device to be adjusted to a desired vertical position.
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