Abstract: A cervical and head support pillow having an outer pillow covering with a top half and a bottom half. Inserted in the top half is a contoured foam core which provides cervical and head support to a user when the user is in a supine or a side-lying position. Two cervical rolls of different convexities are in the foam core and provide varying cervical support. The pillow also has foam inserts for insertion in the bottom half of the outer pillow covering. The inserts adjust the height of the pillow and also offer the user the feeling of less or more support for the head. One of the inserts has a v-shaped depression. The user aligns the "v" in the depression with the desired cervical roll for maximum comfort. After the user inserts the desired insert pieces, the top half of the outer covering is folded over the bottom half of the covering and the pillow is closed by means of a zipper.

Abstract: Bench press (10) includes adjustable safety/range limiting bars (50) mounted for incremental adjustment over a wide range beneath the weight bar support pins (40, 42) in the uprights (14). The bench (24) is preferably positioned at a predetermined reduced height so that the knees of the athlete are substantially above the plane defined by his/her head, shoulders and back or hips to achieve more stability and to avoid arching and thus straining the lower back.

Abstract: An improved assisted dip/chin exercise device (10) comprises a frame (12), chin bar (28), dip bar (30) and a pivotal foot bar (54) which is connected through a cable and pulley system to a weight stack so that a pre-adjusted amount of assistance can be selectively applied when and as desired for more effective training.

Abstract: There is disclosed a substantially completely stable damped liquid displacement support system (11) which comprises an envelope of liquid impervious flexible material having panels (13) and (15) and provided with a valve (17), at least one interior divider (19) provided with a plurality of openings (25) and (27) disposed across the interior of the envelope separating the envelope into at least two compartments (21) and (23), each compartment containing a core (29) of resilient liquid absorbent material and a liquid substantially saturating the core. The opening (25) and (27) permit the liquid to migrate between the compartments (21) and (23) when pressure is applied to the system.

Abstract: A bathtub hand rail having a molded plastic body with a hand-grip portion and a lower portion. A lip extends downwardly from the lower portion, and has a first surface for placement against a first side surface of the bathtub side wall. A second surface of the lip has a recess therein with a semicircular top wall, two vertical side walls, a bottom wall and a back wall. Extending through the lower portion of the body is a longitudinal rectangular slot. Received within the slot is a horizontal arm of a clamp arm assembly. A vertical arm of the clamp arm assembly has pivotally attached to it a press plate for placement against a second side surface of the bathtub side wall. The horizontal arm and the vertical arm are attached to one another. A threaded rod, which is pivotally attached to a locking handle at a head portion, is threaded into threaded receiving means in the horizontal arm through an orifice in the recess.

Abstract: A human performance dynamometer for testing eccentric contractions and also concentric contractions of the human muscles. The dynamometer provides for free-limb acceleration during concentric contractions, whereby the user can accelerate the input shaft of the dynamometer to the set speed without any resistance from the dynamometer. The dynamometer has two parallel shafts which are geared together and rotate in opposite directions to one another. The dynamometer has an input shaft for connection to limb engaging means. A motor is operatively connected to one of the parallel shafts through a speed reducer. Located on each shaft is an overrunning spray clutch, each of which may be disengaged from the system if eccentric contractions are desired for one or both directions of rotation of an input shaft. Each outer race of the respective overrunning clutch is connected to its respective parallel shaft. The inner race of each overrunning clutch is geared to the input shaft.

Abstract: An improved axillary crutch is disclosed. The crutch has two inter-connected hollow-tube frame members. The bottom frame member is radially shaped at the end which comes in contact with the floor, the radial design of the bottom frame member being derived from the natural arching motion of the crutch. A radial crutch tip is fitted over the radial end of the bottom frame member. The bottom frame member telescopes into the top frame member. A bolt within the handle of the crutch passes through apertures in each frame member and is secured by a wing nut. The height of the crutch is changed by removing the bolt, telescoping the bottom frame member into or out of the top frame member and resecuring the bolt at the desired location. The handle can also be moved relative to the crutch by removing the bolt, changing the position of the handle, and securing the handle at the desired location by reinserting the bolt. Adjusting the crutch height and the handle height both can be accomplished in one step.

Abstract: A range of motion limiting device for limiting the range of motion of a rotating input assembly on a trunk extension/flexion test, rehabilitation and exercise machine. The device has a cam lock and a cam lock housing, each of which is one integral piece. The cam lock has a cylindrical cam base, a cam extending from the cam base, an L-shaped tongue and a bracket. A shock absorber is mounted in the bracket. The cam lock housing has a locking knob thread for a locking knob, an L-shaped groove into which the L-shaped tongue of the cam lock fits when the device is assembled, an elongated hole for receiving the cam and cam base of the cam lock, and a ring clamp groove which nests around a semi-circular ring which is mounted on the machine. The device is assembled by inserting the cam and cam base into the elongated hole of the cam lock housing and rotating the cam lock relative to the cam lock housing to a final assembled position.

Abstract: An upper body rotation assembly for a back test, rehabilitation and exercise machine designed for the isolated testing, rehabilitation and exercise of the lower back musculature of a person in rotation about a vertical axis is disclosed. The rotation assembly has a curved chest pad which bears against the chest of the person and a scapula pad which bears against the scapula of the person. The curve of the chest pad is designed to fit the greatest variety of upper body shapes and sizes, providing the greatest comfort and stabilization to the largest portion of the population possible. Two belts, one on each side of the rotation assembly, secure the chest pad to the scapula pad. The rotation assembly is attached to a frame of the machine such that when the person exerts a rotational force against the chest pad and the scapula pad the rotation assembly rotates relative to the frame of the machine.

Abstract: A leg stabilization apparatus for a trunk extension/flexion test, rehabilitation and exercise machine wherein a person secured to an input assembly of the machine engages in trunk extension/flexion motion. The apparatus comprises a popliteal pad assembly, a thigh-knee pad assembly and a tibia pad assembly. The popliteal pad assembly has two popliteal pads which bear against the back of the person's knees. The height of the popliteal pad assembly is adjustable. The thigh-knee pad assembly has two thigh pads which bear against the person's thighs and two knee pads which bear against the inside of the legs at the knees. The tibia pad assembly has two tibia pads which bear against the tibia. Both the thigh-knee pad assembly and the tibia pad assembly are secured to the popliteal pad assembly by use of telescoping tubes which are locked into receiving tubes in the popliteal pad assembly.

Abstract: A low inertia counterbalance mechanism for eliminating the effects of gravity on an upper body mass of a person secured in an input assembly of a trunk extension/flexion test, rehabilitation and exercise machine is disclosed. The mechanism disclosed does not add any appreciable inertia to the input assembly. A cam rotating on the same axis of rotation and mechanically connected to the input assembly comes in contact with a cable when the input assembly rotates downwardly. The cable at its bottom end is attached to a lever arm. The lever arm rotates upwardly when the cam comes in contact with the cable, and a constant force gas spring pivotally attached at its bottom end to an intermediate point on the lever arm is compressed when the lever arm pivots upwardly. This negates the increasing effects of gravity felt by the upper body mass of the person secured in the input assembly as the input assembly rotates downwardly. The top end of the spring is pivotally attached to a frame of the machine.

Abstract: A lower body stabilization apparatus for a back test, rehabilitation and exercise machine designed for the isolated testing, rehabilitation and exercise of the lower back musculature of a person in rotation about a vertical axis is disclosed. The lower body stabilization apparatus has a seat on which the person sits. The seat may be raised or lowered so that a scapula pad of an upper body rotation assembly of the machine is against the scapula of the person. A seat back which bears against the lower back of the person may be moved forward or backward in order to align the natural anatomical axis below the waist of the person with the axis of rotation of the rotation assembly. A lap belt secured into a lap belt buckle holds the person against the seat back and also down against the seat. Two side cushions bear against the pelvis to prevent lateral movement of the pelvis. Two knee pads of a knee pad assembly bear against the inside of the legs between the knees and thighs.

Abstract: An exerciser device has a rotary crank assembly turnable in opposite selected directions and driving an endless first chain entrained on sprockets. The chain drives through a first engaged clutch when the crank assembly is turned in one direction to turn a wheel which drives a variable resistance device such as a variable delivery pump. A second chain entrained on other sprockets which are driven by the first chain when engaged by a second clutch, to drive the wheel when the crank assembly is turned in opposite direction. The wheel always turns in the same direction regardless of the direction in which the crank assembly is turned.

Abstract: An attachment for a walking cane to serve as audible alarm producing means and as a light projection lamp. The attachment has a hollow casing for mounting onto a cane so that a vertical portion of the cane protrudes from the front section of the casing and the horizontal portion of the cane protrudes from the rear section of the casing. Inside the casing, is a switch connected in circuit with an audible alarm producing device, a lamp and batteries. The switch is operable externally of the casing for selectively sounding the alarm or lighting the lamp. The casing has quickly separable and reengageable sections providing access to the interior or the casing for servicing the batteries. The sound actuating circuit may be arranged to modify the sound produced by the alarm device to increase its attention getting effect.

Abstract: An adjustable seat assembly comprises a horizontal seat. A pedestal is secured to the seat in a downwardly and forwardly inclined position and is secured to a carriage having two spaced frames extending around two elevated parallel rails. One frame has a top bar normally bearing on tops of the rails and a bottom bar spaced from the undersides of the rails. The other frame has a top bar spaced from the tops of the rails, and a bottom bar abutting the undersides of the rails and carrying a catch member which normally engages in one of a plurality of holes in the underside of the rails. When the seat is raised forwardly, the catch member disengages from the hole to permit longitudinal movement of the seat carriage along the rails.