Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Washer structure – Including means for retaining washer to fastener
Reexamination Certificate
2005-06-21
2005-06-21
Saether, Flemming (Department: 3677)
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Washer structure
Including means for retaining washer to fastener
C411S544000, C411S546000, C411S156000, C411S999000
Reexamination Certificate
active
06908276
ABSTRACT:
An assembly of an internally threaded fastener and a stemmed washer is provided, such as for applications in which a standoff is desired between a washer and a mating externally threaded fastener. The stemmed washer includes a washer portion, a retaining portion and a standoff portion. The washer portion is angled relative to the standoff portion. The angle of the washer portion to the standoff portion may be varied to change the effective length of the standoff portion. The retaining portion interfaces with the internally threaded fastener to retain the fastener in the assembly. The stemmed washer may include a skirt that is plastically deformed to capture the fastener. The fastener may include a skirt which similarly plastically to mate with a retaining lip on the stemmed washer. The fastener and washer may be secured in the assembly to permit relative rotation of the fastener with respect to the washer.
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Illinois Tool Works Inc.
Saether Flemming
Yoder Fletcher
LandOfFree
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