The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 11, 1980
Filed:
Oct. 12, 1978
Wallace E Beuch, Pine Island, MN (US);
George J O'Konski, Rochester, MN (US);
Kenneth D Rusch, Rochester, MN (US);
Thomas A Wytaski, Pine Island, MN (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
A disk file machine having a transducer or a pressure pad opposite a transducer movable to engage a magnetic disk rotatably disposed in a magnetic diskette assembly in the machine and having a pressure plate opposite a platen portion for holding the disk in a proper data transferring plane, and a manually operable knob mechanically connected with the movable transducer or pressure pad and with the pressure plate for moving these parts from original positions, which are widely separated from the opposite parts to allow positioning of a magnetic diskette in the machine, to intermediate positions in which the spacing is less. The machine includes a solenoid mechanically connected with the movable transducer or pressure pad and mechanically connected with the pressure plate for moving these parts from their intermediate positions to final positions in which the movable transducer or pressure pad engages the disk and in which the pressure plate grips the diskette and holds it in a proper data transferring plane. The mechanical connections from the knob to the pressure plate and to the movable transducer or pressure pad include an oscillatable shaft connected with the knob and having an offset or eccentric portion effective for moving these parts from original to intermediate positions. The solenoid is positioned on a second side of the machine opposite a first side carrying the oscillatable shaft, and a flexible cable connects the solenoid with mechanism on the first side of the machine for moving the pressure plate and for moving the movable transducer or pressure pad from intermediate to final positions.