Abstract: An oral device for improving the breathing of a user by means of protrusion of the lower jaw includes a first dental rail that covers at least some teeth of a lower row of teeth of the user; a second dental rail that covers at least some teeth of an upper row of teeth of the user; and at least one coupling element connecting the first and the second dental rail. The first dental rail comprises a front, labial connection point and the second dental rail has two rear, buccal connection points positioned substantially at its two posterior ends. The coupling element has a substantially U-shaped configuration, and an apex of the coupling element forms a joint with the front labial connection point on the first dental rail. The posterior ends of the coupling element form a joint with the rear connection points of the second dental rail.

Abstract: An oral device for improving the breathing of a user by means of protrusion of the lower jaw includes a first dental rail that covers at least some teeth of a lower row of teeth of the user; a second dental rail that covers at least some teeth of an upper row of teeth of the user; and at least one coupling element connecting the first and the second dental rail. The first dental rail comprises a front, labial connection point and the second dental rail has two rear, buccal connection points positioned substantially at its two posterior ends. The coupling element has a substantially U-shaped configuration, and an apex of the coupling element forms a joint with the front labial connection point on the first dental rail. The posterior ends of the coupling element form a joint with the rear connection points of the second dental rail.

Abstract: In a brake cylinder there is a reciprocating piston from which extends a non-rotatable sleeve surrounding a co-axial non-rotatable axially displaceable threaded shaft upon which is threaded a coupling nut. A pair of rotary couplings are provided on opposed sides of the coupling nut with the sleeve and the rotary couplings are actuable by axial displacement of the coupling nut. A stop ring is axially displaceable on the coupling nut and is supported opposite to the braking direction by a fixed stop. A spring has one end acting against the stop ring and its other end acting against an abutment on the sleeve. A second stop on the coupling nut is spaced rearwardly of the first stop a distance approximately equal to the contact stroke of the vehicle brake when the resetting device is in the inoperative position.

Abstract: In a brake cylinder there is a reciprocating piston from which extends a non-rotatable sleeve surrounding a co-axial non-rotatable axially displaceable threaded shaft upon which is threaded a coupling nut. A pair of rotary couplings are provided on opposed sides of the coupling nut with the sleeve and the rotary couplings are actuable by axial displacement of the coupling nut. A stop ring is axially displaceable on the coupling nut and is supported opposite to the braking direction by a fixed stop. A second stop on the coupling nut is spaced rearwardly of the first stop a distance approximately equal to the contact stroke of the vehicle brake when the resetting device is in the inoperative position. To provide for single acting operation, the resetting device is provided with a spring which has one end acting against the stop ring and the other end acting against an abutment on the sleeve.