Abstract: An adjustable chair arm is used with a chair that has a base, a seat supported by the base, and a back connected with the base. The arm is an elongated member that is connected with the base and has two opposing ends. An arm adjustment device is interposed between the arm and the base and has a drive rod, a frame, a torque member, a brake, and a brake actuator. The frame holds the drive rod in rotating engagement. The torque member is connected between the frame and the drive rod and applies a torsional force to the drive rod. The brake has a locked mode and a released mode and holds the drive rod in preselected rotational positions, relative to the frame. The brake actuator manipulates the brake between the locked and released modes.

Abstract: A height adjustable arm structure in which a selectively operated drive concealable in and connectable to the frame of a furniture piece includes at least one pair of articulated arm elements and said arm elements subjected to a seletive constant bias acting upon the articulating pivots through the entire range of adjustment.

Abstract: A new and useful adjustable chair and adjustable height chair arms therefor in which a parallelogram or pantographic mechanism for activation of the height adjustment of the chair arms is located in the back portion of the chair structure and the arms are pivotal on the back. A back support post pivotally supports the back. The support post, then, is extensibly secured to the seat support or frame and the seat is tiltably pivotal on a swivel bracket operating to turn on the vertical axis of a spindle post extending upwardly from the chair base. The seat has an adjustable resilient compression stabilizing spring support forward of the seat tilting pivot and forward of the swivel post axis. The back support is torsionally supported on its pivot connection to the frame in an adjustable manner. Cushion stop means function between the back and the back support post.

Abstract: A component system of parts used together and in repetition to make different forms of upholstered seating. The system utilizes three cushion elements which form a seat, a back and an arm which can be used on either right or left side of the seat. The soft foam cushion parts sit on or are attached to molded or shaped platform. The platform is used to locate and attach the metal frame parts which hold the seating system together. In the preferred embodiment, three different platform configurations are used in conjunction with three metal exposed frame parts which are combined in an aesthetic manner with the cushions to form single or multiple seating units.