1
Robert L Boyd, Richard Krukowski, Daniel Y Gezari: Muscle exercise and rehabilitation apparatus. Biodex Corporation, Cobrin & Godsberg, September 8, 1987: US04691694 (142 worldwide citation)

A muscle exercise and rahabilitation apparatus includes a movable fixture against which a force can be applied; a servo motor having an output shaft coupled to the fixture; a strain gauge effectively coupled between the output shaft and the fixture for producing a load signal corresponding to the fo ...


2
Richard Krukowski: Muscle exercise and rehabilitation apparatus. Biodex Corporation, Stempler Cobrin & Godsberg, December 16, 1986: US04628910 (56 worldwide citation)

A muscle exercise and rehabilitation apparatus comprises a movable arm against which a force can be applied; a servo motor mechanically coupled to the arm through a gear reducer; a sensing device for sensing the force applied to the arm and for producing a load signal corresponding thereto; a tachom ...


3
Walter Gezari, Daniel Y Gezari: Muscle exercise and/or rehabilitation apparatus using linear motion. Biodex Corporation, Cobrin Feingertz & Gittes, March 13, 1990: US04907797 (43 worldwide citation)

A muscle exercise and/or rehabilitation apparatus includes a fixture against which a force can be applied; a sensor which senses the force applied to the fixture and produces a load signal corresponding thereto; a speed detector which produces a velocity signal corresponding to the speed of the fixt ...


4
Richard Krukowski: Particle brake clutch muscle exercise and rehabilitation apparatus. Biodex Corporation, Cobrin Feingertz & Godsberg, August 23, 1988: US04765315 (27 worldwide citation)

A muscle exercise and rehabilitation apparatus includes a movable fixture against which an actuating force can be applied; a particle brake clutch for applying a braking force to the fixture in linear dependence on a braking current supplied thereto, in counteracting relation to the actuating force; ...


5
James M Reiss, Walter Gezari, Robert Stidd: Muscle exercise and rehabilitation apparatus for the upper lumbar region. Biodex Corporation, Cobrin Feingertz & Godsberg, February 7, 1989: US04802462 (24 worldwide citation)

A back attachment for a muscle exercise and/or rehabilitation apparatus of the type having a motor driven output shaft with a central axis, includes seat for supporting a person thereon; a back exercising frame connected to the output shaft for pivoting the back of the person about the central axis ...