Seagate Technology Incorporated

Ronald Jacob Smith

Sham Sunder Nayar

John George Gerogeorge

Mark Curtis Fahrendorff

Shawn Stephen Silewski

Craig A Parsons

An apparatus and associated method for measuring spatial characteristics of a test object with stacked features. First and second measurement assemblies for measuring opposing first and second planar features, respectively, of a test object, by directing light beams into a gap between the features to measure a position and a static attitude of each feature.

Measurement of test object with stacked features

An apparatus and associated method is provided for precisely positioning a datum surface of a component. The apparatus has a housing defining a tooling datum surface. A collet is supported by the housing that is selectively operable between a retracted mode and an expanded mode. In the retracted mode a clearing disengagement is defined with the component. In the expanded mode a contacting engagement with the component is defined. The contacting engagement and a simultaneous longitudinal force transferred by the contacting engagement to the component pressingly engage the datum surfaces together. The apparatus further has a bias member exerting the longitudinal force and urging the collet to the retracted mode.

Fixturing a head spindle assembly with an expanding collet

The application discloses an adjustable head stack comb having adjustable first and second comb plates. The adjustable comb plates include at least one tooth segment which cooperatively form a comb having at least one tooth. The first and second comb plates are adjusted to adjust dimensions of the at least one tooth cooperatively formed by the tooth segments of the first and second comb plates. In the embodiments disclosed, a relative position of the first and second comb plates is adjusted to adjust a thickness dimension of the at least one tooth formed by the at least one tooth segments of the first and second comb plates. Also in illustrated embodiments, the comb plates are cooperatively adjusted to adjust an elevation or z-height of the at least one tooth of the comb.

Adjustable head stack comb

An apparatus and associated method is provided for precisely positioning a datum surface of a component. The apparatus has a housing defining a tooling datum surface. A collet is supported by the housing, and is thereby selectively operable between an expanded mode and a retracted mode. In the expanded mode, a clearing disengagement is defined with the component. In the retracted mode, a contacting engagement is defined with the component as well as a simultaneous longitudinal force that is transferred by the contacting engagement to the component capable of pressingly engaging the datum surfaces together. The apparatus further has a bias member urging the collet to the retracted mode.

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Belle Plaine, MN, United States of America

Ronald Jacob Smith