Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Including sleeve and distinct tapered expander
Patent
1993-08-06
1994-10-18
Wilson, Neill R.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Including sleeve and distinct tapered expander
411 55, 411 60, F16B 1306
Patent
active
053562526
ABSTRACT:
A unitized expanding dowel is disclosed for accurately and repeatably locating a part having a through hole relative to a reference part having a hole of like size. The dowel includes a radially expandable, resiliently deformable cylindrical sleeve having an axial passage therethrough. A portion of the passage is frusto-conically shaped to complement a tapered expansion pin movable within the axial passage in a first axial direction to force the outer surface of the sleeve to radially expand into tight surface engagement with inner surfaces of the holes. Coupling means connect the sleeve to the expansion pin and permit movement of the pin in an opposite direction to allow contraction of the sleeve away from tight engagement with the holes while preventing withdrawal of the pin from the sleeve passage.
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Hutten Raymond J.
Whistler, III Lawrence V.
S.B. Whistler & Sons, Inc.
Wilson Neill R.
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