Twisting fastener

- ITW Limited
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Description

FIG. 1 is a front elevational view of the twisting fastener showing my new design, the rear being a mirror image thereof;

FIG. 2 is a side view taken from the right of FIG. 1, the side opposite being a mirror image thereof;

FIG. 3 is a perspective view in the interlocked position.

Referenced Cited
U.S. Patent Documents
1780880 November 1930 Johnson
2699585 January 1955 Patterson
3043547 July 1962 Reich
3494071 February 1970 Simmon
3543353 December 1970 Meehan
Foreign Patent Documents
2393965 February 1979 FRX
0133395 August 1929 CHX
Patent History
Patent number: D280180
Type: Grant
Filed: Oct 21, 1983
Date of Patent: Aug 20, 1985
Assignee: ITW Limited (Windsor)
Inventor: David A. Burt (Wokingham)
Primary Examiner: B. J. Bullock
Attorneys: J. R. Halvorsen, T. W. Buckman
Application Number: 6/544,292
Classifications
Current U.S. Class: D/8394; D/8382