Abstract: A device and method to be used in treating sleep apnea comprising a headband adapted by reason of its size and shape to fit around a person's head, a garment adapted to being secured to the torso portion of a person using the device consisting of a front section and a back section, a first strap affixed at an upper end to a location on the headband, a second strap affixed at an upper end to a second location on the headband, and wherein the first and second straps are affixed at their lower ends to the back section of the garment so as to provide sufficient tension in the straps to cause the person's head to be tilted backwards thereby opening the person's airway.

Abstract: A combination whistle (1) having a mouthpiece (2) leading to bulbous whistle portion (3) which is gripped by hand when blowing into the mouthpiece. Mouthpiece (2) is common to trill chamber (4) and two pea-less chambers (5 and 6), chamber (6) being located under chamber (5).

Abstract: A hand-held dental instrument for intraoral abrading of teeth includes a light-weight body made from a high temperature material and having internal bores or passageways for permitting fluid flow through the body. A rotatable nozzle assembly having internal fluid conduits therein is coupled to a distal end of the body such that a chamber is formed between the nozzle and the body. The chamber maintains fluid communication between an internal bore which is radially offset from a central axis bore of the body and an internal conduit of the nozzle assembly such that the nozzle can be rotated a full 360 degrees with respect to the body. The nozzle assembly includes a primary discharge port for directing flow of the air/abrasive material mixture and a secondary discharge port for directing a stream of liquid to a surface to be abraded.

Abstract: A hand-held dental instrument for intraoral abrading of teeth includes a light-weight body made from a high temperature material and having internal bores or passageways for permitting fluid flow through the body. A rotatable nozzle assembly having internal fluid conduits therein is coupled to a distal end of the body such that a chamber is formed between the nozzle and the body. The chamber maintains fluid communication between an internal bore which is radially offset from a central axis bore of the body and an internal conduit of the nozzle assembly such that the nozzle can be rotated a full 360 degrees with respect to the body. The nozzle assembly includes a primary discharge port for directing flow of the air/abrasive material mixture and a secondary discharge port for directing a stream of liquid to a surface to be abraded.

Abstract: An ultrasonic dental scaler for use with a dental scaler insert having a resonant frequency associated therewith includes a handpiece adapted for removably receiving the dental scaler insert, an energizing coil mounted on the handpiece, whereby the energizing coil substantially surrounds the dental scaler insert. The ultrasonic dental scaler includes a selectively tunable oscillator circuit coupled to the energizing coil and which generates a control signal having an oscillation frequency associated therewith for vibrating the dental scaler insert in response thereto. Specifically, the selectively tunable oscillator circuit includes an automatic tuner for automatically altering the oscillation frequency associated with the control signal to be substantially equivalent to the resonant frequency associated with the dental scaler insert in response to the control signal being fed back thereto.

Abstract: A device and method permits detecting, measuring, and recording the intensity of radiation corresponding to a green plant's photoactive spectrum striking a selected site, and utilizing such information alphanumerically and graphically displaying the photoactive radiation exposure in sols incident at the site during a particular portion of a day, an entire day, a week, or an month. The photoactive radiation information provided by the invention device allows gardeners, farmers, researchers and others to match the types of trees, shrubs, crops or other plants that would grow best under the radiation conditions usually incident at the site over a desired, extended time period.

Abstract: An ultrasonic dental scaler insert includes a tool coupled to a connecting body which is mechanically coupled to a transducer. When the insert is placed within an ultrasonic dental scaler device handpiece, the transducer produces ultrasonic vibrations which are transmitted to the tool via the connecting body. In order to reduce the noise generated by the operating scaler insert, the connecting body includes an elastomeric material which surrounds a portion of the connecting body. Additionally, a sleeve is provided which surrounds a portion of the connecting body providing a place to grasp the scaler insert during operation. The sleeve includes a bellows section which provides vibrational damping for the insert. Furthermore, the connecting body includes a vibration dampening bushing at an end adjacent the working tool.

Abstract: A handpiece for a dental instrument includes a solid body having internally reamed passageways through which a fluid is carried. The handpiece may be a dental air-abrading tool for etching hard surfaces to enhance bond strength of adhesives, which includes a solid body having internally reamed passageways through which a gaseous fluid and an abrasive material are carried. A connector is mounted on one end of the body for connecting one of the body's internal passageways to a supply of gaseous fluid and a nozzle is mounted on the other end of the body for directing the gaseous fluid to a surface. A supply of an abrasive material is coupled to another internal passageways of the body. The nozzle includes an internal mixing chamber for mixing the gaseous fluid and abrasive material entering therein from the body's internal passageways. A switch is mounted on the body for activating the flow of gaseous fluid and abrasive material through the body.

Abstract: A method of making solid die dental models is provided, comprising preparing an impression of a dental structure and fabricating a dental model using said impression by depositing therein a flowable modeling material which self-sets under ambient conditions to a substantially solid elastomeric state. The flowable modeling material preferably has an initial viscosity of less than about 30,000 cps, and preferably sets to a substantially solid state in less than about an hour to provide a solid elastomeric state having a durometer hardness of at least about 60. The resulting dental model can be employed for construction of accurate and precise composite dental restorations.

Abstract: An ultrasonic dental scaler for use with a dental scaler insert having a resonant frequency associated therewith includes a handpiece adapted for removably receiving the dental scaler insert, an energizing coil mounted on the handpiece, whereby the energizing coil substantially surrounds the dental scaler insert. The ultrasonic dental scaler includes a selectively tunable oscillator circuit coupled to the energizing coil and which generates a control signal having an oscillation frequency associated therewith for vibrating the dental scaler insert in response thereto. Specifically, the selectively tunable oscillator circuit includes an automatic tuner for automatically altering the oscillation frequency associated with the control signal to be substantially equivalent to the resonant frequency associated with the dental scaler insert in response to the control signal being fed back thereto.

Abstract: A polymeric composition is provided, comprising:a base component, comprising a first alkenyl-terminated short chain polydiorganosiloxane and a cross-linker; anda catalytic component, comprising a second alkenyl-terminated short chain polydiorganosiloxane and a catalyst,wherein:at least one of the base component and the catalytic component further comprises a filler;said first and second alkenyl-terminated short chain polydiorganosiloxanes together comprise from about 15 wt % to about 40 wt %,said cross-linker comprises from about 1 wt % to about 15 wt %,said catalyst comprises from about 0.005 wt % to about 5 wt %, andsaid filler comprises from about 30 wt % to about 80 wt %, based on the total weight of the composition; andwherein the composition sets to a solid elastomeric state at about room temperature following mixing of said base component and said catalytic component.

Abstract: An ultrasonic dental scaler device includes a handpiece having a removable outer sheath secured thereto. After performing a scaling procedure on a patient's teeth, the outer sheath is easily removed from the dental scaler handpiece and sterilized. A completely sterile sheath is secured to the dental scaler handpiece for use with each patient thereby preventing cross-contamination among different patients.

Abstract: A referees sports whistle of mandolin shape is provided which has three rectangular whistle chamber elements of the same order of length contained within the mandolin shape of the whistle and arranged side-by-side in a common plane. An exhaust port is provided on the top surface of the whistle to exhaust air, blown into the whistle chamber elements, entirely through the top of the whistle. The whistle is manufactured from two separately moulded parts comprising a first top cover portion including the exhaust port and a second part comprising a main body part including a bulbous portion to be gripped at the sides thereof by the user.