Abstract: There is disclosed a method of manufacturing artificial tooth restorations for natural teeth or implants comprising a ceramic densely sintered, high-strength individual core B with dental porcelain A by powder metallurgical manufacturing methods. The inner surface I of the core B, which will fit against one or more prepared tooth surfaces P or artificial abutments, is manufactured by forming a ceramic powder mixture against a surface of a body at which this mentioned surface is manufactured by registering the surfaces of the prepared teeth or artificial abutments and their mutual relationship with a three-dimensional optical or mechanical reading method directly in the mouth or on a model of, e.g., plaster, after which the registered surfaces are reproduced in an enlarged size, e.g., with a computer-controlled milling machine. The amount of enlargement is calculated from the shrinkage of the ceramic material during sintering to full density and considering the gap for cement.

Abstract: An apparatus and method for making either upper or lower dental impression of teeth for a mammalian patient by utilizing an impression tray having upstanding walls that are laterally and longitudinally adjustable. Those walls conform to the mouth of the patient but spaced from the exterior of the upper or lower teeth of the mammalian patient.

Abstract: A device for applying a liquid to the hair of an individual, the device comprising a comb member and a container, wherein: the comb member has an elongate tubular main body with opposed axial ends and a longitudinal axis extending between the ends, the main body encloses a longitudinal passage which extends along the longitudinal axis, is open at one of the axial ends and is closed at the other one of the axial ends, and the longitudinal passage includes means at the one axial end for receiving the container, and a plurality of elongate teeth carried by the tubular main body and extending parallel to one another from the main body in a direction transverse to the longitudinal axis, each of the teeth having a base connected to the main body, a tip remote from the base, and a linear passage extending in a straight line from the base to the tip, the linear passage being open at the base to communicate with the longitudinal passage in the main body and being open at the tip, each of the teeth having a frustoconic

Abstract: This invention includes a speech training system that allows a student to enter any utterance to be learned and have the articulatory model movements required to produce the utterance displayed on a CRT screen. The system accepts a typed utterance, breaking it down into a set of phonemes. The set of phonemes is sent to a synthesizer, which produces a set of parameters indicating the acoustic characteristics of the utterance. The acoustic parameters are converted into articulatory parameters emphasizing the frequency, nasality, and tongue-palate contact required to produce the typed utterance. The articulatory parameters are displayed on the CRT screen. The acoustic parameters are also sent to a formant synthesizer which converts the parameters into speech output. The system measures a student's production and then evaluates the student's production against the parameters of the typed utterance for its similarity. Feedback on the similarity is displayed on the CRT screen.

Abstract: A method and apparatus for tracking, recording and analyzing a subject's jaw motion is provided. Cross-haired targets are non-intrusively fixed in relation to the subject's upper and lower jaws. Three video cameras are disposed about the subject's head, each camera lens being focused on the targets. Each video camera is equipped with a charge control device chip which includes an array of light sensitive pixels defining a two dimensional image coordinate system. The charge control device chip converts a light image indicative of a target's cross-hair position into a series of amplitude signals. A computer is used to receive, process and display said camera chip amplitude signals. The computer includes a pre-processor board for timing, synchronizing and transforming said camera chip amplitude signals into address record information representing the targets' relative positions as a function of time.

Abstract: An apparatus and method for bicycle riding instruction includes at least two auxiliary wheels mounted to the bicycle and movable between a first, lowered position and a second, raised position and a control rod for imparting directional forces to the bicycle and for moving the auxiliary wheels between the raised and lowered positions, the method for bicycle riding instruction including the steps of controlling and guiding the movement of the bicycle with the auxiliary wheels lowered, moving the auxiliary wheels into a raised position while the bicycle is in motion, controlling and guiding the bicycle movement with the auxiliary wheels in the raised position, and, finally, removing the auxiliary wheels and controlling and guiding bicycle movement with the auxiliary wheels removed.

Abstract: This invention relates to a daily diet management planner and method comprising a foldable carrying case having a plurality of pockets and pocket inserts on and in the inside walls of the carrying case: having meal insert cards each identifying a specific meal type such as BREAKFAST, MORNING SNACK, LUNCH, AFTERNOON SNACK, DINNER, and BEDTIME SNACK; and having a plurality of food cards each listing one specific food within a food exchange and displaying a picture of either the approximate or visual serving size of the food. Prior to planning his/her diet, the user of the planner, who can be either an adult or a child, should consult a doctor or a dietitian for a prescribed diet which is then broken down and placed on each of the meal insert cards to balance the daily diet across all the meals for a day. The user selects food cards each listing one specific food and places them in pockets for the type of the meal.

Abstract: Mathematics teaching aid for recognition of numerical and functional equivalents and spatial relationships having tiles (12, 14, 16) marked with numerals (12) , functions (14) , and equals (16) and a baseboard (10) with intersecting rows of spaces where two to four students can form linear equations (18) by aligning the proper tiles on the baseboard (10) which intersect at right angles and share one tile.

Abstract: A pool for simulating water-skiing includes a pool body, a pumping plant which pumps water into the pool body as a stream just under the surface of the water in the pool body, a track supported above the periphery of the pool body, an automatic traveling member engaged with the track and capable of automatically traveling along the track, and a tow rope having one end attached to the traveling member. To practice standing up on water skis at the beginning of water-skiing, the traveling member is made to move along the track thereby pulling the skier from a remote position, for example, to a position in the stream of water injected into the pool. If kept at this position the skier can practice skiing with little difficulty. To simulate slaloming, the automatic traveling member can be controlled to travel back and forth along the track so that the skier's position relative to the stream of injected water is varied.

Abstract: The invention relates to a high speed aerial tow bag target of textile maial having a reduced aerodynamic drag provided with a frontside air entrance orifice and at least one air exit orifice at its tail. In order to reduce the drag of the tow bag and to improve its stability under flight condition the tail is provided with a contour tapering to the end of the bag and the hole area of the air exit orifices is made smaller than the cross section of the air entrance orifice at the front side.

Abstract: A casing which accommodates an electric circuit for generating sounds of different tones or voice sounds has a recess 11 defined in its upper panel and a loudspeaker 12 disposed therein and mounted on the upper panel for reproducing and radiating sounds or voice sounds. A plurality of tone plates can selectively be placed, one at a time, in the recess. Each of the tone plates has dots and a bar code indicative of a sound or voice sound of its own. When one of the tone plates is inserted in the recess, the dots or bar code is detected by a sensor in the recess, and the electric circuit enables the loudspeaker to reproduce and radiate a tone or voice which is indicated by the inserted tone plate.

Abstract: A dental instrument deposit table includes a base member, which has an arrangement for mounting it, and a cover unit which unit includes a deposit surface for receiving the instruments and holders for receiving handpieces, such as handpieces having hoses and handpieces having cables secured thereto. The cover unit is removably mounted on the base member, which, preferably, has a catch member for grasping a rear edge of the cover member and a catch hook for engaging a front lower edge of the cover member to hold the cover member on the base member. Handles are preferably provided on the cover member, which handles can be used for positioning the instrument deposit table.

Abstract: The invention relates to a holder for a dental hand piece carrying a rotatable burr in which any one of a plurality of hand pieces, each of which has a different contra-angle, relative to the axis of the burr, can be accommodated to the same holder and coupled to the free end of a pantograph for maintaining the axis of the burr normal to the occludal plane of the teeth.

Abstract: A dental handpiece includes a handle portion having at a first end thereof a holder for a driven tool and which at a second end thereof is rotatably connected to a connecting portion which provides connection to a supply hose for supply media. Light supplied to the region of the tool is provided from an incandescent lamp arranged in a recess in the connecting portion. The recess may accommodate the incandescent lamp or a light guide and is arranged at an end of the connecting portion to be directed toward the hose and opens at such end.

Abstract: A sheathed endoscope has a flexible elongate insert part and a sheath that is removably fitted over the insert part. The sheathed endoscope comprises a distal end part that is provided at the distal end of the insert part, a distal end cover that is provided at the distal end of the sheath and that is removably fitted over the distal end part, and a lock device that is provided on the distal end cover so as to be engageable with the distal end part. The lock device is disengaged from the distal end part by deforming the distal end cover so that the lock device moves radially outward. A sheath for a sheathed endoscope is provided and is removably fitted over a flexible elongate insert part of the endoscope.

Abstract: A packaged dental article includes a dental appliance that is precoated with an adhesive. The adhesive is in contact with a flexible film having a low adhesion surface. The film is secured to a container at a location spaced from the appliance so that the film tends to peel away from the adhesive when the appliance is removed from the container in order to inhibit separation of the adhesive from the appliance. The container has a sidewall with a recess that engages a carrier to hold the container, and the carrier is flexible to permit the container to be inserted into or released from the carrier when desired.

Abstract: An orthodontic cutter for cutting portions of orthodontic metal ligatures and the like having a pair of ATS-34 stainless steel plier halves, uniformly heat treated to within the range of about RC 57-59, with each plier half being of one piece construction and free of abrupt changes in width along its length, with the width being measured perpendicular to both the longitudinal axis of the plier half and the pivot axis. The entire orthodontic cutter is corrosion resistant and holds its edge without fracturing.

Abstract: An aid for teaching students to read, comprising sound letters formed from standard English alphabet letters, each sound letter corresponding to a single sound most commonly associated with a particular alphabetic letter or combination of alphabetic letters of said standard alphabet, each said sound letter characterized as having a front, a back, a top, a bottom, a left side and a right side, said sound letters adapted for arrangement in a visually associated, juxtaposed relationship to form combinations of said sound letters so that students are able to read said combinations of said sound letters phonetically.

Abstract: An acoustic training device for simulating the effects of an unexploded sunition in a tactical engagement simulation system generates an audible signal of a predetermined frequency and duration when handled or otherwise disturbed. A timing circuit allows the referee to place the armed device in the playing field without activating the audible signal. Exemplary submunitions include the M118 Rockeye with an integral horn, the blue series of spherical bomblets, and the M42/46 grenade submunition.

Abstract: A fixture intended to be implanted into bone tissue, for example, the bone tissue of a jaw, for anchoring a prothesis, such as a tooth crown. The fixture includes a cylindrical head disposed on the end of a shaft for positionally fixing the prothesis. An upper and lower external thread section is formed on the shaft. The lower external thread section is screwed into a previously prepared hole in the bone tissue, the hole having a diameter that is substantially equal to a core diameter of the shaft. A thread-free zone is located along a mid-section of the shaft. The thread-free zone has a smooth outer surface to avoid the irritation of nerves present in the bone tissue in the vicinity of the fixture. Gently curving transitional portions connect the thread-free zone with the upper and lower external thread sections. The thread-free mid-section and the lower external thread section are provided with a coating of tissue friendly material.