Abstract: A panel for a toy vehicle truck box or the like wherein one edge of the panel interlocks with one wall of the box against outward removal therefrom and the opposing edge of the panel has an apertured tab adapted to be secured by a fastener such as a rivet to the wall of the box opposing said one wall.

Abstract: A spur for engagement with a boot of the type having an upper foot-engaging portion, an outer sole attached to the bottom of said upper portion and a heel attached to said boot at the rear of said outer sole, and wherein a groove is formed in the boot around the lower periphery of the upper portion by the inturned lower edge of the upper portion against the outer sole; the spur comprises a pair of forwardly directed arms which are connected at their rear ends in a curved portion to form a bell-shaped yoke; the yoke, in cross-section, has an upwardly and inwardly inclined profile which is tapered convergently upwardly; the yoke is also provided with a rounded lower edge from which a narrow rim projects inwardly and which is adapted to be received in the groove of the boot above and surrounding the heel; the spur is also provided with a pair of forwardly and upwardly directed ears which are pivotally attached to the forward ends of the arms along forwardly and downwardly directed hinge axes, respectively; each

Abstract: The toy airplane includes a paraglide wing positioned over a fuselage, and a flat connecting structure shaped in the form of a lifelike being is mounted on the fuselage and connects the paraglide wing to the fuselage. A propeller is rotatably supported at the forward end of the fuselage and its axis of rotation is inclined downwardly with respect to the paraglide wing and fuselage.

Abstract: In the making of fixed dental prothesis, a model is employed, which is an accurate replica of the patient's teeth and gums. For reinforcement, the model is fixed to a base. A model comprises a replica of the teeth remaining in the patient's mouth and a replica of teeth to be prepared by restorative dentistry. For preparing the teeth by restorative dental techniques, a die is used. It is desired that the die be removed from and replaced in the model with facility, be indexed accurately relative to the model, and have stability while positioned in the model against forces applied in the practice of prothesis, and also be removable from the base on which the model is secured. Toward this end, a pin is fixed in the die having a locating leg and an indexing leg interconnected by an arcuate portion of the pin. The legs extend outwardly from the die to be received by the base to which the model is secured.

Abstract: A dental handpiece which includes a head and a holding sleeve associated therewith. The holding sleeve incorporates therein gaseous and liquid coolant lines each of which is in communication with a mixing line in turn in communication with one or more discharge nozzles for discharging an air-water coolant spray. Each of the gaseous and liquid coolant lines is provided with throttle means which serves to reduce the effective cross-sectional areas thereof.

Abstract: Orthodontic brackets are fitted to teeth to be treated by making a first positive jaw model from which the model teeth are replaceably removable. The model teeth are subsequently placed into a second jaw model containing pliable material which enables the teeth to be displaced into a desired predetermined orientation, which is the orientation ultimately desired for the teeth to be treated. With the model teeth in this orientation, brackets are fitted to the model teeth and utilizing procedures which involve making a negative mold of the model teeth with the attached brackets, the brackets are ultimately attached to the teeth to be treated so that an orthodontic alignment wire may be applied to the teeth by engagement with the attached brackets.Apparatus for attaching the brackets to the model teeth includes a support structure for holding a jaw model containing the teeth and a curved alignment table extending at least partially about the jaw holder.

Abstract: A device and method useful in the restoration of an abraded or broken tooth by the application to the stub, of a crown to replace the abraded or broken portions, the crown being secured to a prepared core. There is disclosed a "direct" method of preparing the core for the crown and a device to facilitate fabrication of the core and installation of the same in the mouth comprising simple, time-saving steps.

Abstract: In the application of orthodontic brackets to teeth by the indirect method employeing a transfer tray, the use of adhesive activating radiant energy passing through the transfer tray or mold and apparatus for conducting the radiant energy from the mold or exteriorly thereof, through the latter to the bracket adhesive to be activated.

Abstract: A pressurized dental handpiece has a housing in which a shaft is journalled and from which the shaft projects to support a dental tool. A high speed air turbine runner is on the shaft and is propelled by air under superatmospheric pressure brought to a nozzle for the runner through a conduit. A tubular extension of the housing surrounds the conduit and is in communication with the housing to serve as the turbine exhaust duct to the atmosphere. An adjustable valve regulates the spent exhaust air flowing from the extension to maintain a superatmospheric pressure in the extension. Some spent air is allowed to flow from the extension around the discharge of a water tube passing through the extension and the housing in the direction of the projecting shaft and dental tool.

Abstract: This disclosure is directed to a method of manufacturing an artificial denture, such as a molar or molars having cusps and occlusal relief therebetween by providing a base surface which is generally planar and flat, providing cones each having a base and apex, securing the base of each cone upon the base surface, and covering the cones with dental material such that cusps are formed by the apices of the cones and occlusal relief is formed between the apices.

Abstract: A hand puppet resembling a stuffed animal has a pocket extending therein into which the hand of a manipulator is inserted. The pocket is configured to extend into the legs and head of the animal so that the legs and head may be moved by the fingers of the manipulator. Behind the pocket, there is a cavity which is filled with polyurethane foam or the like so that the back portion of the animal retains its shape as the animal is manipulated.

Abstract: Hoop for propelling along a surface with a trundle, characterized by being formed of interchangeable sections to vary its circular diameter and at least one section for rendering it non-circular to effect erratic rolling.

Abstract: A dental implant includes a porous ceramic cup or ring filled with silicone rubber which supports an artificial tooth or other prosthetic device such as a denture. The jawbone grows into the porous ceramic to hold the implant firmly in place. The silicone rubber cushions the jawbone from shock caused by multidirectional masticatory forces. A fibrous matting is partially embedded into the upper periphery of the silicone rubber that extends from the ceramic cup or ring. Gingival tissue becomes attached to the matting to form a seal that precludes bacteria from invading and infecting the implant area. In another embodiment, the implant includes a metal sleeve completely filled with and surrounded by silicone rubber. Fibrous matting is partially embedded into the surface of the silicone rubber. Both the jawbone and the gingival tissue adhere to the matting to hold the implant firmly in place and to prevent bacterial invasion.