Abstract: An eye protective device for large animals such as horses wherein a flexible frame defining individual eye surrounding loops is secured on the animal's head and each loop mounts an outwardly bulging mesh panel that does not interfere with the animal's vision but bars passage of insects.

Abstract: A miniature electrically powered vehicle including an electric motor having a pair of permanent magnets mounted in the car to serve as the stator of the motor and also being mounted to extend in close magnetic proximity to the electric rails positioned in the track upon which the vehicle is operated. The magnets are mounted one behind the other in the vehicle such that a magnetic flux path exists running between one of the permanent magnets to at least one of the electric rails and then to the other of said permanent magnets. The resulting magnetic force between the car and the track provides an increased normal force of the car against the track to increase the traction of the driving wheels and to decrease slippage and prevent the vehicle from spinning as it negotiates curves in the track.

Abstract: A connection for use in connecting a rigid sheet material part in a toy vehicle with a relatively more resilient part wherein the rigid part is provided with a round aperture and the resilient part has an expansion collar thereon which is somewhat greater in diameter than the aperture but which can be forced therethrough in a contracted condition, and a third member which is inserted axially into the collar to retain it in an expanded condition to prohibit its removal from the aperture.

Abstract: A toy construction element comprises a rectangular wall formed with an apron whose edge defines a plane parallel to the wall. A plurality of parallel tubes arranged in a regular array pass through the base wall. The one end of each tube extending through the base wall has a predetermined inner diameter. The other end of each tube lies substantially at the level of the plane defined by the apron and has an outer diameter corresponding generally to the inner diameter. In addition this other end of each tube is cleft and is stepped between an outer region at the plane whose outer diameter corresponds to the inner diameter of the one end and an inner region of slightly greater diameter. Thus two such blocks can be fitted together with the other ends of the tubes of one block fitting into the one ends of the tubes of the other block, the skirt of the one block coming to rest on the wall of the other block.

Abstract: An air driven dental handpiece has a housing defining a rotor chamber and also defining an inlet duct leading into the chamber as well as an outlet duct opening from the chamber. There is a spindle mounted in the housing for rotation in the chamber about an axis. A rotor in the chamber is fast on the spindle. The rotor has a hub engaging the spindle and extending for a predetermined axial distance. A rotor web extends radially from the hub and is axially shorter than the hub. Blades extend radially from the web and are axially longer than the web to leave annular cutaway portions on opposite sides of the rotor between the hub and the blades.

Abstract: The inside of a head gear adapted to be movably mounted on a substantially spherical doll head having a projection extending upwardly from the head is provided with a groove defined by a pair of ribs inside the cap. The top projection of the head is guided in the groove so as to enable the cap to be tilted relatively to the head between two extreme positions.

Abstract: A method for attaching a tooth crown to a parallel or non-parallel tooth root system or single rooted tooth in one form comprising the following steps:A. drilling a pin-mated hole in one or each of the root filled tooth roots to be used for fixation of the crown to the desired diameter or length and in the direction of the root canal;B. inserting headed impression pins into the prepared holes;C. taking an accurate impression of the tooth concerned with the headed impression pins in position in the tooth to their full depth;D. pouring up an accurate stone die on the said impression;E. removing the impression pins from the die and inserting the matching final retentive pin to be used into the hole provided;F. positioning a tube or sleeve adjusted to the correct length over the said final retentive pin; the said tube or sleeve having a melting point substantially greater than that of the metal to be used for the casting of the crown;G.

Abstract: A correctional pad for use on the hoof of an animal such as a horse or the like is disclosed comprising a resilient body member having a side wall with a bottom wall extending laterally therefrom. The body member is comprised of a material such as Neoprene or the like so that the side wall member may be adhesively secured to the side of the animal's hoof so that the bottom wall member will be selectively positioned beneath the hoof to alter the flight of the animal's foot. One of the embodiments is substantially straight and is L-shaped in cross-section. A further embodiment is also L-shaped in cross-section but it is curved along its length so as to conform to the curvature of the animal's hoof. The thickness of the bottom wall member may be increased by laminating additional thicknesses thereon.

Abstract: An operator-simulating doll is seated within a sunken operator's compartment in the cab of a toy truck and normally is enclosed by a windowed cupola which may be swung about a hinge to an open position to enable a child to remove the doll from the compartment.

Abstract: An artificial tooth for use in a denture comprising a base portion, an occlusal portion, and an intermediate portion sandwiched between and secured to the base portion and occlusal portion, the intermediate portion being resilient to permit the occlusal portion yieldably to move relative to the base portion. The intermediate portion is disposed generally at equal vertical distances from the occlusal surface of the occlusal portion and the ridge lap surface of the base portion. An anchor wire or wires or other connecting members are provided for limiting the movement of the occlusal portion relative to the base portion. Such an anchor wire may preferably be rigidly connected to the occlusal portion and loosely pivotally connected to the base portion with the anchor wire extending downwardly through the sandwiched intermediate portion. The loose pivotal connection permits the occlusal portion to move from its normal position toward the base portion even by tipping movement.

Abstract: Artificial teeth for use in a denture comprising a denture base and a plurality of teeth anchored in the denture base, each tooth having a base portion providing a ridge lap surface and an occlusal portion providing an occlusal surface, wherein the improvement comprises one or more lugs extending outwardly from each tooth intermediate its occlusal surface and the ridge lap surface to serve as a locating lug or tab for positioning the tooth in the mold in which the denture base is formed on the base portions of the teeth. These locating lugs or tabs or at least those which are not embedded in the denture base are removed by grinding and polishing.

Abstract: An activity toy for small children, consisting of a large circular hoop and a push rod for pushing the hoop so it rolls over a ground, the push rod having a loop at one end to form a handle, the other end having a U-shaped hook for fitting against the rim of the hoop. The hoop periphery rollably supports a weight through a frame and the frane further includes a speed indicator for indicating the speed of the hoop.

Abstract: A color matching system, defined by "hue", "value" and "chroma" characteristics, is employed in a teaching program to develop an understanding of shade guide techniques for use by the dental profession.

Abstract: An ultrasonic hand-held cleaning device having a housing enclosing a casing, an energyzing winding about the casing, and a fluid conduit attached to the interior of the casing. A sleeve is insertably mounted into the end of the casing, and acts to support a connecting body at a spaced distance within the sleeve so as to form an annular space in fluid communication with the casing. A vibrator is attached at the casing end to the connecting body and is therefore located in the casing opposite the energyzing winding. A cleaning tool is attached at the other end of the connecting body. In one version fluid moving through the annular space is sprayed out an annular nozzle around the tool which is itself vibrating ultrasonically as a result of reverbretory vibrations induced by the vibrator. In a second preferred embodiment the connecting body has a ring at its nodal point, the sleeve being cut out to accomodate the ring and having two longitudinal slots for the passage of fluid.

Abstract: A metallic monoblock horseshoe comprising a thick, rectangular in cross-section, inner portion and a thinner peripheral outer portion, the sole of the hoof resting on the inner portion carrying the horse's weight and the outer portion being secured to the crust.

Abstract: A disposable dental drill assembly is disclosed in this application and includes a housing in which is rotatably carried a rotor member including a turbine blade configuration and which is fixed to the end of a dental burr. The housing is formed with interlock means cooperating with complimentary means formed on a handle member whereby the drill assembly is easily removable from the handle member and can be replaced when the burr wears out. Both the housing and handle are formed with air passages and the handle is connected to a source of air pressure so that air flows over the turbine blades driving the rotor member and, accordingly, the burr. Because the drill assembly is disposable, the housing and the rotor member, including the turbine blade configuration, are made of a relatively inexpensive plastic material which can also be utilized for the handle member.

Abstract: This invention discloses a flexible handpiece mounted control for dental drills. Two embodiments are disclosed whereby the control can be mounted externally on a standard handpiece or part of a specially designed handpiece. Both embodiments provide a tube that is designed to permit the uninterrupted flow of fluid. When an external load (finger pressure) is applied to the tube, an obstruction to the fluid flow occurs. This obstruction to the fluid flow is a back pressure that may be monitored and used to control dental drill speed and/or water flow to the drill.

Abstract: Disclosed is an improved doll house, and in particular a hanging doll house, which is essentially two-dimensional, but which gives a child the impression that the doll house is three-dimensional. Generally the doll house comprises an essentially planar, magnetically responsive center member or panel having peripheral edges which define an outline of a building interior and being surface-printed to three-dimensionally illustrate a plurality of interior rooms in the building, a plurality of essentially planar, magnetically responsive pieces, surface-printed so as to illustrate threedimensionally pieces of furniture, furnishings, fittings and the like and which are attached magnetically to the surface of the center member to illustrate completed interior rooms, and means for supporting said member in contact with a wall in hanging and supporting relationship.

Abstract: A disposable applicator tray, for topical application of fluoride gel and other dental medications, in the form of an arcuate mouthpiece having a U-shaped cross-section and comprised of flexible polymeric foam material. The interior channeled recess of the tray is anatomically contoured to fit respectively over either of the upper and lower teeth with the walls of the tray contacting the adjacent periodontal tissue. The flexibility of the tray provides a relatively snug seal between the tray perimeter and the peridontal tissue so as to prevent excessive loss of fluoride or other medication contained in the tray and the contamination and dilution thereof with saliva. The applicator tray, which can also serve as a protective mouthpiece for use during athletic activities, is vacuum formed in quantity from a sheet of inexpensive polymeric foam material, thereby permitting it to be economically disposed of after a single use.

Abstract: A three dimensional implantable bone brace having a pair of elongated integral flanges connected along one lengthwise edge of each and disposed substantially at right angles to each other. One of said flanges has a plurality of spaced transverse slots which permit bending of the other flange in a direction parallel with said one flange. The other flange has a plurality of openings through which screw means can be inserted for fixing said brace against the lateral surface of a mandible, for example, when said one flange extends into a groove cut into said surface.