Abstract: A lighting panel providing uniform illumination is described. The panel includes a transparent light guide which has a faceted grooved major surface and a parallel planar surface. The lighting panel introduces light into one end of the light guide. The facets facing the light source are inclined so that they reflect the incident light primarily along the light guide to be reflected from the opposite end. The facet facing away from the light source is inclined to reflect light out through the planar major surface.

Abstract: A flat panel display lighting system is disclosed wherein a thin, flat light guide has two spaced major surfaces with light introduced into one edge of the guide. Light is extracted from the light guide by the first facets in a plurality of parallel microgrooves disposed to intersect and transmit the light introduced into the light guide and reflected away from the major surface by reflection from second microgroove facets. A liquid crystal display is placed adjacent to the light guide to be backlit or frontlit.

Abstract: A flat panel display lighting system is disclosed wherein a thin, flat light guide has two spaced major surfaces with light introduced into one edge of the guide. Light is extracted from the light guide by the facets in a plurality of parallel microgrooves disposed to intersect the light introduced into the light guide. A liquid crystal display is placed adjacent to the light guide to be backlit or frontlit.

Abstract: A flat, thin, large area light source employing a flat, thin light guide having a flat major surface and a shaped parallel major surface, and means for injecting light into one end of the side light guide whereby light is emitted uniformly from one of the major surfaces.

Abstract: An arrangement for irrigating a patient's bladder following prostate or bladder surgery which includes a valve body having five circumferentially spaced ports thereon and a valve core rotatable within the valve body and having passageways therein for interconnecting selective ports on the valve body when the core is rotated to predetermined positions for admitting irrigating fluid to the bladder through a urinary catheter and for conveniently draining the irrigating fluid from the bladder into a urinary drainage receptacle. The valve is constructed so that the entire irrigating and drainage procedure can be performed either intermittently or continuously without disconnecting the valve ports from the catheters or the irrigating supply and drainage receptacles employed in the arrangement.

Abstract: A precision valve assembly for controlling the flow of fluids delivered to a patient has a valve element mounted on a flexible diaphragm. A controlled actuator displaces a portion of the diaphragm surface, flexing it, and by a leverage action, moves the valve closer to or away from the valve seat.

Abstract: A precision valve assembly for controlling flow of fluids to a patient having a valve element mounted on a diaphragm. At least one ball positioned in a spiral track, when moved toward the center by relative rotation of the spiral track and an opposed longitudinal track, brings a valve and valve seat together to restrict fluid flow therethrough.

Abstract: Film cartridge for use in viewing motion picture film having means forming a framework with an index plate with an aperture therein. A continuous length of film having perforations along one edge thereof is carried by the framework. Guide means is provided on the framework for guiding the film over the index plate and past the aperture. Means is provided for advancing the film frame by frame past the aperture. A spool is rotatably mounted on the framework. The spool has a central hub and a film supporting surface extending radially from the hub so that the hub extends away from the surface in a direction generally perpendicular to the surface. The spool has an annular rim spaced from the hub and extending away from the surface and in the same direction as the hub.

Abstract: A combination viewer and projector having a housing with a rear-lighted viewing screen mounted therein. The housing is adapted to receive a magazine having a length of film therein which can be advanced past an aperture in the magazine. A source of light is provided in the housing and is then directed into the magazine to form an image from the film in the aperture. Means is provided in the housing for receiving the image and for directing it onto a rear-lighted screen or alternatively through a projection opening in the housing.

Abstract: Skin Fold Caliper having first and second relatively rigid arms which have one end of each of the first and second members connected to permit pivotal movement of the first and second arms with respect to each other so that the other ends of the first and second arms can be moved between open and closed positions. A gauge is carried by the first and second arms for giving an indication of the spacing between the other ends of the first and second arms. A spring-like member formed integral with one of the arms is utilized for applying a predetermined clamping pressure between the first and second arms to move the other ends of the first and second arms toward the closed position.

Abstract: Cartridge viewer having means forming a framework with indexing means mounted thereon. The indexing means has an aperture therein and a pair of spaced apart index projections disposed on opposite sides of the aperture. A continuous length of film having perforations along one edge thereof is provided. Guide means is provided for guiding the film over the indexing means and past the aperture. A sprocket engages the film. A drive member is rotatably mounted in the framework and is connected to the sprocket for driving the sprocket and advancing the film past the aperture. Crank means accessible from the exterior of the framework is provided for rotating the drive member. The spool is rotatably mounted in the framework and a portion of the length of film is formed as a roll on said spool with said spool being formed so that the film can be payed out continuously either from the inside of the roll or from the outside of the roll. Optical means is carried by the framework for viewing the film in the aperture.