Abstract: A method and apparatus for controlling relative movement such as rotary movement between a railway truck and a car body supported thereby to control truck hunting through application of reaction forces resisting such rotary movement which are effective primarily to resist higher velocity relative rotational movements.

Abstract: A respiratory mask adapted to confront the face of a user in a manner to float with respect to the user's face on a cushion of gaseous medium contained within the mask for user breathing, the gaseous medium being contained within the mask by a flexible seal means carried by the mask and maintained in sealing engagement with the user's face while providing essentially no structural support for the mask with respect to the user's face.

Abstract: A railway truck and steering apparatus therefor having rigid steering arms which are fixed with respect to a pair or longitudinally spaced railway truck wheelsets, and preferably the axial ends thereof, in a manner to have an essentially fixed angular relationship in the horizontal plane with respect to the respective truck wheelsets, the steering arms extending from the respective truck wheelsets with pairs of steering arms being connected together in a manner to constrain the truck wheelsets to yaw in a mutually opposed sense and remain substantially fixed in axial shear relative to each other while being free to move longitudinally with respect to each other.

Abstract: An improved methodology and systems for delivery of breathing gas such as for the treatment of obstructive sleep apnea through application of alternating high and low level positive airway pressure within the airway of the patient with the high and low airway pressure being coordinated with the spontaneous respiration of the patient, and improved methods and apparatus for triggering and for leak management in such systems.

Abstract: A method and apparatus for treating obstructive sleep apnea and other disorders by the novel application of pressure varying from ambient pressure to external portions of a patient's neck, and a novel breathing mask and seal apparatus.

Abstract: A railway vehicle truck having side frames which are supported with respect to the journals of spaced apart wheelsets with the respective pair of wheelset axle ends supporting each side frame being constrained to move simultaneously in opposite directions toward and away from each other in response to truck steering impulses.

Abstract: A framing system is provided for supporting glazing elements on a substrate, such as a building framework or an existing glazing system. The framing system includes a plurality of frames surrounding and supporting respective glazing elements. A plurality of frame members are joined to form sides of each frame. Each frame member includes a rabbet for receiving the glazing element having a pair of spaced sides and a base connecting said spaced sides, and a flange extending outwardly from the rabbet base. Flanges of frame members overlap with flanges of adjacent frame members of adjacent frames. Fasteners extend through the flanges for attaching the framing system to the substrate.

Abstract: An articulated connector for flexibly connecting the adjacent ends of a pair of rail car platforms which are supported on a common truck bolster, the connector comprising a spherical bearing formed integrally with a conventional center plate bearing of one car platform, and spherical elements carried by the other car platform for cooperable engagement with the spherical bearing to transmit vertical, lateral and longitudinal train forces between the adjacent platforms solely through engagement of the mating spherical bearing elements.

Abstract: A compressed air lubricator with a novel and improved means for dispersing lubricant into small particle sizes and providing for their introduction into and uniform distribution within an air stream flowing through the lubricator.

Abstract: A respiratory mask adapted to confront the face of a user in a manner to float with respect to the user's face on a cushion of gaseous medium contained within the mask for user breathing, the gaseous medium being contained within the mask by a flexible seal means carried by the mask and maintained in sealing engagement with the user's face while providing essentially no structural support for the mask with respect to the user's face.

Abstract: A greeting card display apparatus including an upstanding card retaining assembly with concealed slot means for receiving a plurality of endless loop elastic cords in a manner that the elastic cords extend in tension along the periphery of the upstanding assembly to retain greeting cards with respect to the upstanding assembly.

Abstract: A side bearing for a railway truck and car body assembly including one or a plurality of elastomeric bearing elements, confined at given locations in a side bearing carrier and vertically extended rigid abutments disposed adjacent the elastomeric element(s), and a roller or similar rigid bearing element disposed to be free rolling within defined limits with respect to the elastomeric elements.

Abstract: An underground method and apparatus for recovery of mineral deposits from sloping seams including high pressure water jet mineral dislodgement from underground deposits and water borne transport of dislodged mineral to an underground recovery site, and compressed air injection for transport of water borne mineral deposits from the underground recovery site to the surface.

Abstract: An improved methodology and apparatus for delivery of breathing gas such as fop the treatment of sleep apnea through application of alternating high and low level positive airway pressure within the airway of the patient with the high and low airway pressure being coordinated with the spontaneous respiration of the patient.

Abstract: A method of microcurrent electrotherapy utilizing a combination of specified values for selected parameters including electrical stimulus wave form, direction, magnitude, voltage, polarity and frequency to provide a variety of therapeutic enhancements.

Abstract: A side bearing for a railway truck and car body assembly including one or a plurality of elastomeric bearing elements, confined at given locations in a side bearing carrier and vertically extended rigid abutments disposed adjacent the elastomeric element(s), and a roller or similar rigid bearing element disposed to be free rolling within defined limits with respect to the elastomeric elements.

Abstract: A hand implement having an adjustable handle which is selectively movable by operation of improved retention devices therefor to any of a variety of use positions, each of which corresponds to a handle position perpendicular to one of a plurality of abutment faces formed on an implement base portion and located in non-parallel planes.

Abstract: A method of treating sleep apnea by the novel application of pressure varying from ambient pressure to external portions of a patient's neck, and a novel breathing mask seal apparatus.

Abstract: An article of footwear for imprinting personalized messages on a ground surface below, comprising: a flexible lower sole which is adapted to flex continually in use and including an elongated recessed track extending generally longitudinally of said lower sole, said track having closed ends and formed, longitudinally extending and spaced apart insert engaging portions; a plurality of adjoining separate, generally rectangular inserts each having a surface with a symbol, and a pair of generally parallel side portions with respective, opposed outer surfaces which are cooperable with said insert engaging portions, respectively; and said inserts being received into said recessed track with only said opposed outer surfaces engaging said insert engaging portions of said recessed track, respectively, in a manner that said inserts are retained in said recessed track by only partial perimeteral engagement of said inserts therewith throughout said flexing of said lower sole in use.

Abstract: An improved methodology and apparatus for the treatment of sleep apnea through application of alternating high and low level positive airway pressure within the airway of the patient with the high and low airway pressure being coordinated with the spontaneous respiration of the patient.