Abstract: An adjustable depth shelf mechanism comprises a fixed shelf mountable on a vertical support mechanism, an adjustable shelf mounted on the fixed shelf for inward and outward movement on the fixed shelf to vary the depth of the shelf, and locking means for holding the adjustable shelf in one or more extended positions with respect to the fixed shelf. The shelves comprise wire mat product support surfaces mounted on shelf brackets. The wire mats include longitudinal wires on top of transverse wires. Downwardly extending notches are formed in the transverse wires of the fixed shelf at positions corresponding to the desired extended positions. The longitudinal wires of the adjustable mat fit into the notches when the adjustable mat is at the desired extended positions, such that the adjustable shelf mat lockingly nests in the fixed shelf mat and the shelves present a substantially coplanar upper surface.

Abstract: A facing device is provided for facing products displayed in wire shelf racks having a forward end and a rear end, the rear end comprising a horizontal wire and a vertical wire. The facing device comprises a lever arm, a clip on the lever arm for rotatably mounting the lever arm to the horizontal wire in the shelf rack, and a coil spring between the lever arm and the shelf rack for biasing the lever arm forwardly. A retaining bracket is provided on the lever arm for holding the coil spring thereto, and a stop is provided on the bracket for limiting expansion of coil spring terminal ends.

Abstract: An electrosurgical knife having an elongated knife handle of simple construction and inexpensive to manufacture has an opening at one end for accommodating an electrosurgical electrode and electric switches for controlling the application of current to the electrode. The handle is provided with a pair of grooves, one for optionally retaining an optical conduit and the other for optionally retaining a fluid-transporting tube. Both the optical conduit and the tube can slide in the grooves, allowing them to be readily adjusted to be adjacent the distal end of electrodes of varying lengths.The knife handle has an internal passageway extending the length of the handle for accommodating electrical conductors and a printed circuit board. The handle further has an enlarged section for enclosing a pair of push-button switches with exposed outer surfaces. Electrical connections may be established between the electrical conductors and the electrosurgical blade on the circuit board by operating the switches.

Abstract: Hip and knee joint exercising apparatus (100,, 300) are adapted for use by a patient (218) to exercise selective muscle/skeletal groups in the hip, upper leg, knee and lower leg regions. The exercise apparatus (100, 300) include rectangular bases (102, 302) having cushions (104, 304) mounted thereon, In the hip joint exercising apparatus (100), an exercise bar assembly (112) is pivotably coupled to the base (102) and cushion (104) and includes an elongated outer tube (126) with a power slide (134) having a friction mounting on the tube (126). In the knee joint exercising apparatus (300), an exercise bar assembly (326) is pivotably coupled to a pair of tubular bars (308) extending downwardly from the base (302). In each exercising apparatus, a saddle assembly (138, 338) is mounted to the respective power slide (134, 334) so as to be slidable therewith with respect to the outer tube (126, 328).

Abstract: A multi-purpose exercising apparatus (100) is adapted for use by a patient (224) to exercise selected muscle/skeletal groups in the back, abdomen and other regions. The apparatus (100) includes a rectangular base (102) having a cushion (104) mounted thereon. A pair of upwardly angled tubular bars (108) are connected to the rectangular base (102) and pivotably mount an exercise bar mechanism (124) having an elongated outer tube (126) with a power slide (132) having a friction mounting on the tube (126). The bar mechanism (124) is coupled to a handle (150) releasably securing a back supporting strap (162). In one particular structural use, a patient (224) secures himself or herself within the back supporting strap (162) and exerts horizontal pushing or pulling forces on the bar mechanism (124) so as to move the elongated outer tube (126) relative to the power slide (132).

Abstract: A portable exercising apparatus (10) adapted for use by a patient as a stand-alone unit includes an elongated tube (12) and a power slide (16) having a friction mounting on the tube (12). A force measuring mechanism (26) is coupled to the tube so as to measure external forces exerted in moving the tube (12) relative to a handle rod (24) partially received in one end of the tube (12). The mechanism (26) includes a gauge dial (32) with a pointer (34) coupled to a pinion gear (52). The pinion gear (52) engages a rack (64) mounted to a slide rod (56) received within the tube (12) and secured to the handle rod (24). Movement of the tube (12) relative to the slide rod (56), resulting from forces exerted on the power slide (16), causes rotation of the pinion gear (52) and dial pointer (34).

Abstract: A shoulder exercising apparatus (100) is adapted for use by a patient to exercise selected muscle/skeletal groups in the shoulder regions. The apparatus (100) includes a rectangular bracket (102) having an adjustably mounted saddle assembly (108). An exercise bar assembly (116) is pivotably coupled to the bracket (102) and includes an elongated outer tube (122) with a power slide (128) having a friction mounting on the tube (122). In use, a patient (136) secures his or her arm within the saddle assembly (108) and moves the power slide (128) along the outer tube (122), thereby exercising various muscles in the shoulder region in accordance with the patient's position relative to the exercising apparatus (100). A force measuring mechanism (124) is coupled to the tube (122) so as to measure external forces exerted in moving the tube (122) relative to a handle rod (138) connected to the bracket (102) and partially received within the tube (122).

Abstract: A knockdown lamp assembly (10) includes a shade (11) comprising a set of separate glass panel sections (12) surrounding an annular lower support frame (52) having an outer channel (60). Interlocking ribs (62) are located inwardly adjacent joints between adjoining panel sections (12) and block direct light from passing outwardly through the joints. The upper ends of the ribs (62) include offset portions (74) which engage slots (44) formed in a central support hub (42) spaced apart from the frame (52). The lower ends of the ribs (62) are received within the channel (60) and include ears (66) maintained beneath a channel shoulder (56) by outwardly adjacent hooks (68) connected to the panel sections (12). An upper holding cap (14) captures the upper portions of the panel sections (12) and a threaded rod (36) mounts the support hub (42) and holding cap (14).

Abstract: A table (10) includes an extensible top surface including end leaves (20, 22) which are slidably mounted on a frame (12). The end leaves (20, 22) are mounted by means of a roller mechanism (62, 66) which permits easy movement of the leaves between an opened and closed position to allow for insertion of a center leaf (28). The center leaf (28) is carried on the frame (12) and is displaceable between a down position below the top surface of the table and an up position wherein the center leaf forms a portion of the top surface. The leaf (28) is mounted to the table by means of a linkage (34, 46) which allows the center leaf (28) to be displaced between the up and down positions. In order to facilitate movement of the center leaf (28) to the up position, at least one torsion rod (40) or other spring element is mounted between the center leaf (28) and the table frame (12) to provide the desired biasing force to maintain the center leaf (28) in the up position.