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.

Date of Patent:
Sep. 19, 2000

Filed:

Dec. 16, 1997
Applicant:
Inventors:

David John Jennings, Santa Cruz, CA (US);

Roger Allen Addy, Gilroy, CA (US);

Wesley R Clark, Watsonville, CA (US);

Assignee:

Seagate Technology LLC, Scotts Valley, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21D / ; B21K / ; B23P / ;
U.S. Cl.
CPC ...
2989809 ; 2940701 ; 2940705 ; 2940708 ; 310 90 ; 384 40 ;
Abstract

A method for setting a gap at or near an optimum width in a hydrodynamic bearing defined between a shaft having end pieces, the end pieces having axially opposing exterior sides which are not parallel, the end pieces being adjustable axially, and a surrounding sleeve comprising independently supporting the shaft and the sleeve to be capable of finely positioned relative motion, in which adjustment is accomplished by moving the shaft and the sleeve together to form the gap with respect to the end pieces and the sleeve and supplying pressurized air to an opening to the gap to cause air to flow through the gap, while monitoring an air pressure drop due to the air flow through the gap while the end pieces are adjusted.


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