James A Wanstall

US Patent:

20020172574, Nov 21, 2002

Filed:

Dec 14, 2001

Appl. No.:

10/020253

Inventors:

Edward McCormack - Chaddsford PA, US
Thomas Ellis - Wilmington DE, US
Danin Sewalt - Parkesburg PA, US
Harry Dickerson - Grayslake IL, US
Michael Menta - Aston PA, US
Kyle Sareyka - Mullica Hill NJ, US
Richard Lewis - Walnut Circle CA, US
Thomas Aukzemas - Wilmington DE, US
James Wanstall - Kennett Square PA, US

International Classification:

F16B021/18

US Classification:

411/352000

Abstract:

A captive screw including a screw and a ferrule is disclosed. One end of the ferrule is adapted for engagement to a hole in a panel to be secured by the captive screw. The screw has an annular flange that is captured within the bore of the ferrule. The screw has a shaft with a threaded portion. The threaded portion of the screw shaft can be made to extend from the ferrule to varying amounts as the screw is moved relative to the ferrule between extended and retracted positions. An optional spring may be provided in the ferrule to bias the screw toward the retracted position.