Abstract: An atherectomy system for coring, ingesting and removing an obstruction material from within a patient's vessel having a flexible guide-wire defining voids for containing obstruction material and defining a diametrical envelope, a flexible rotary-catheter slidable and rotatable over the diametrical envelope having a rotary coring means at its distal end, a continuous passage defined around the flexible guide-wire by the flexible rotary-catheter for ingesting the cored obstruction material, and coupling means at the proximal end of the flexible rotary-catheter for coupling to rotating means.

Abstract: An atherectomy system for removing an obstruction from within a patient's vessel, comprising a flexible guide-wire insertable into the vessel, a flexible catheter for coring and ingesting obstruction material, insertable into the vessel over the flexible guide-wire, the flexible catheter having a coring device at its distal end and coupling device for connecting it to a power source, at its proximal end, a sleeve in which the flexible catheter is slidably disposed, the sleeve having an elongated tongue extending from its distal end, the tongue defining inside the vessel an eccentrically biased trajectory for the coring device to move along.

Abstract: An atherectomy system for coring, ingesting and removing an obstruction from within a patient's vessel, comprising a flexible guide-wire insertable into the vessel, a flexible rotary-catheter being rotatably disposed and insertable into the vessel over the flexible guide-wire, having a rotary coring device, at its distal end for making a peripheral cut in an obstruction located in front of it, relative motion between the flexible rotary-catheter and the flexible guide-wire is used to mechanically enable the ingested obstruction material to proximally move into the flexible rotary-catheter.

Abstract: An atherectomy system for coring, ingesting and removing an obstruction from within a patient's vessel, comprising a flexible guide-wire insertable into the vessel, a flexible rotary catheter being rotatably disposed and insertable into the vessel over the flexible guide-wire, having a rotary coring device at its distal end for making a ciruclar cut in an obstruction located in front of the rotary coring device, relative motion between the inner-wall and the flexible guide-wire mechanically enabling the ingested obstruction material into the catheter.

Abstract: An atherectomy system for cutting, ingesting and removing an obstruction from within a patient's artery, having a flexible guide-wire insertable into the artery, a flexible rotary catheter being rotatably disposed and insertable into the artery over the flexible guide-wire, a blade at a distal end of the flexible rotary catheter having teeth on its periphery which are rounded and bent toward the center of the blade to ease insertion through the arteries and to reduce the probability of cutting the arterial wall during the insertion and cutting operation the blade having an outer wall which slidingly and rotatably bears against the arterial wall spreading the contact force on a relatively large area to minimize damage to the artery, a continuous passage defined between the rotating flexible rotary catheter and the flexible guide-wire, for ingesting the cut obstruction material.

Abstract: A mechanical atherectomy system insertable into a human blood vessel over a flexible guide-wire for remotely cutting and removing an obstruction therein, having a diametrically stabilized torque transmitting flexible rotary-catheter equipped with a tubular-blade at its distal end and a motor connected to its proximal end.

Abstract: A variable transmission with an integral shifter, particularly suitable for a bicycle, having a variable-sprocket mounted on an axle having crank-arms. The variable-sprocket comprises a drive-flange and a indexing-flange, a pair of sprocket-segment-planets and at least a pair of idler-planets connected to the flanges, the planets adapted to expand and contract in response to a relative rotation of the flanges and thereby increase and decrease, respectively, the effective diameter of the variable-sprocket; and the sprocket-segment-planets are arranged along an imaginary line defined by the crank-arms.

Abstract: A rotary catheter system insertable into a patient's artery over a non rotating auger shaped guide-wire for remotely cutting and removing an obstruction therein, having a flexible catheter equipped with a tubular-blade at its front end and a motor connected to its other end.

Abstract: An incrementally variable transmission, particularly suitable for a bicycle, having a variable-sprocket mounted on an axle having crank-arms. The variable-sprocket comprises a drive-flange and a indexing-flange, a pair of sprocket-segment-planets and at least a pair of idler-planets connected to the flanges, the planets adapted to expand and contract in response to a relative rotation of the flanges and thereby increase and decrease, respectively, the effective diameter of the variable-sprocket, and the sprocket-segment-planets are arranged along an imaginary line defined by said crank-arms.

Abstract: An incrementally variable transmission, particularly suitable for a bicycle, having a variable-sprocket which comprises: A drive-flange and an indexing-flange mounted on an axle with a pair of sprocket-segment-planets and at least a pair of idler-planets sandwiched between the flanges, the planets adapted to expand and contract in response to a relative rotation of the flanges and thereby increase and decrease, respectively, the effective diameter of the variable-sprocket.

Abstract: An incrementally variable transmission, particularly suitable for a bicycle, having a variable sprocket which comprises: A drive flange and an indexing flange mounted on an axle with a pair of sprocket-segment-planets and at least a pair of idler-planets sandwiched between said flanges and forming a relatively rigid structure, the planets adapted to expand and contract in response to a relative rotation of the flanges and thereby increase and decrease, respectively, the effective diameter of the variable-sprocket.

Abstract: A variable sprocket, particularly suitable for a bicycle transmission, comprising a drive flange and an indexing flange mounted on an axle with a pair of sprocket-segment-planets and at least two idler-planets sandwiched between said flanges forming a relatively rigid variable-sprocket, the planets adapted to expand and contract in response to a relative rotation of the flanges and thereby change the effective diameter of the variable-sprocket.

Abstract: An all terrain vehicle equipped with an internal combustion engine which is connected to a torque responsive continuously variable transmission which in turn is connected to a simple automotive type differential. One output of the differential is connected to the right wheels and the other to the left wheels. The distance between the front to rear wheels, which are non-steerable, is smaller than the distance between right and left wheels to mimimize the vehicle's resistance to skid steering. Split brake system to allow steering right by braking the right wheels and steering left by braking the left wheels.

Abstract: An automotive energy managing transmission comprising a differential for splitting the power to mechanical and hydrostatic branches. The transmission is adapted to operate in several modes: hydrostatic in the city, hydromechanical and mechanical on the highway, regenerative braking and engine starting. The transmission includes an energy storage means and allows the engine to operate intermittently during city driving.

Abstract: A game racket having an elastic net and a frame molded in unison, the net comprising non-linear elements which work primarily in bending and whose cross sectional area increases toward the center of the net.

Abstract: A floating power transmission ring gear whose inner periphery is supported through its gear mesh with a pinion and whose outer periphery is engaged with a belt, to increase the belt's bending diameter without a corresponding increase in the belt's travel per pinion's revolution.

Abstract: A game racket having an elastic net and a frame molded in unison, the net comprising non-linear elements which work primarily in bending and whose cross sectional area increases toward the center of the net.