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:
Oct. 05, 1976
Filed:
Aug. 01, 1975
Harold J Beecroft, Minneapolis, MN (US);
Control Data Corporation, Minneapolis, MN (US);
Abstract
In magnetic disc recording apparatus, an intermediate arm which transmits spring pressure from a load spring to the transducing head pad is pivoted on a shaft journaled either in holes in the intermediate arm or head arm. These holes have substantially flat interior surfaces obliquely facing the shaft and each other. The angles at which these surfaces are set are chosen to cause the arm to slip if necessary with respect to the load spring whenever the head is lifted from the disc surface, to a centered position with respect to these interior surfaces, by supplying sufficient force to overcome the frictional forces existing on the intermediate arm while the head is being lifted from the recording surface. This centering is important because it repositions the intermediate arm accurately with respect to the cantilevered arm which results in the head being accurately positioned with respect to the arm.