METHOD OF ASSEMBLING CAPTIVE SCREW
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United States of America Patent
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Issued Date -
Jul 30, 2009
app pub date -
Jan 30, 2008
filing date -
Jan 30, 2008
priority date (Note) -
Abandoned
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Abstract
A method for assembling captive screw includes the steps of providing an annular base and positioning an annular washer on a top of the annular base; providing a screw, a coil spring, and a sleeve; downward passing the screw through the coil spring and a top opening of the sleeve; and threading a threaded section of the screw through the annular washer, so that the annular washer is fitted around a shank of the screw to locate below the top opening of the sleeve and above the threaded section of the screw. An inner circumferential edge of the annular washer is not worn away by the threaded section of the screw threaded therethrough, enabling the annular washer to keep a small inner diameter for tightly fitting around the shank of the screw and ensuring reliable assembling of the sleeve to the screw.
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