Dci International, Inc.

Bradley A Rice

A mechanical arm assembly includes an elongated housing member, having internal channels extending between its respective ends. A rod member is mounted within one of those channels, and the housing and rod member are pivotally connected at respective opposite ends to a fixed pivot post and a traveling pivot post to effect a four bar linkage arrangement. A floating spring is mounted within another internal channel separate from and approximately parallel the rod. The spring is mounted to resist the force of gravity operating upon the traveling pivot post, and is linked to that post through a fluid actuated brake cartridge slidably mounted within the channel housing the spring.

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Sherwood, OR, United States of America

Bradley A Rice