International Business Machines Corporation

David Allen Hall

John Saunders Corbin, Jr

Peter Matthew Thomsen

Mark Wayne Mueller

Kenneth Carl Larsen

George P Olson

A mechanism has a subassembly that contains a microprocessor. The mechanism allows the microprocessor to be easily installed through frontal or rear access into a rack drawer and subsequently docked into a receiving assembly. The docking mechanism is multi-axis in that installation of the subassembly occurs along a single axis, but docking of the microprocessor occurs along an axis that is normal to the installation axis. Actuation of the installation mechanism is accomplished with a front-to-rear motion which sequentially provides a power connection to the microprocessor and displaces it in a vertical motion. This vertical motion registers and mates the microprocessor with the assembly. The microprocessor is preloaded in its final latched position to restrain it from shock and vibration events while supporting the assembly in a fixed and stable position.

Multi-axis microprocess or docking mechanism

In an impact printer including a print wheel having a plurality of selectable character type bearing elements for respectively printing a plurality of characters, said print wheel being rotatable for selectively positioning selected type elements in successive print positions, impact means impellable against the selected elements to drive said elements against the printing medium and means for impelling the impact means against said selected type element, the present invention provides the improvement comprising the combination of means for sensing the flight time of the impelled impact means until impact by sensing variations in the velocity of said impact means, means for comparing the sensed flight time to a predetermined ideal flight time, and means for selectively varying the amplitude of the current to the impelling means to adjust the sensed flight time to equal the ideal flight time.

Growing community of inventors

Austin, TX, United States of America

David Allen Hall