Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Washer structure – Having leveling means
Patent
1998-12-21
2000-08-08
Saether, Flemming
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Washer structure
Having leveling means
411275, 411936, F16B 4302
Patent
active
060992239
ABSTRACT:
The subject invention relates to an adjustable wedge washer to be used in connection with various material testing machines which are used to mechanically test the strength of bolts, screws and other types of fasteners. The subject adjustable wedge washer includes two wedge washers being joined together mechanically with a snap ring so that they are not separable. The wedge washers then rotate relative to each other to form a variable testing angle relative to the fastener.
REFERENCES:
patent: 3285568 (1966-11-01), Biach
patent: 4177999 (1979-12-01), Raber
patent: 4559830 (1985-12-01), Plummer
Galis Erik J.
Maxwell Scott L.
Whitelaw, III Robert S.
Galis Mark R.
Hyatt John E.
Instron Corporation
Saether Flemming
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