Abstract: A computer controlled coffee steeping machine which extracts a minimum of undesirable acids and a maximum of desirable flavorings by steeping the grinds at a low temperature for a long time. The computer is programmed to maintain the lowest water temperature possible for producing a full flavored coffee within a time period selected by the user. At the end of the steeping period, the computer triggers the release of a spring propelled filter basket which lifts the grinds out of the liquid. Finally the coffee is automatically heated to drinking temperature.

Abstract: A powered surgical tool includes a battery-operated motor that has an eccentrically mounted drive wheel for engaging a longitudinally movable drive wire that operates to incrementally rotate a ratchet wheel. A work wheel in the form of a cutting blade or a grinding wheel is mounted for rotational movement with the ratchet wheel at the distal end of the surgical tool. In another version, the cutting blade has a periphery of cutting teeth, which are driven directly by the longitudinally movable drive wire. A grinding wheel version discloses two grinding wheels that are incrementally driven in opposite angular directions by a pair of longitudinally movable drive wires.

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.