Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Including sleeve and distinct tapered expander
Patent
1980-07-02
1983-01-11
Britts, Ramon S.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Including sleeve and distinct tapered expander
411437, F16B 1306
Patent
active
043679951
ABSTRACT:
A fastening device of synthetic resin includes a male member and a female member. The device is capable of fastening objects by simply axially forcing the male member into the female member whereby external threads of the male member threadably engage with internal threads of the female member. In order to unfasten the device, the male member is rotated in an appropriate direction whereby the male member threadably disengages with the female member causing the male member to axially disengage with the female member.
REFERENCES:
patent: 2393606 (1946-01-01), Brush
patent: 3182544 (1965-05-01), Rapata
patent: 3345899 (1967-10-01), Fiddler
patent: 3613497 (1971-10-01), Heldermann
patent: 3918130 (1975-11-01), Poe
patent: 3937122 (1976-02-01), Riedel
Mizusawa Akira
Notoya Yoshiaki
Britts Ramon S.
Nifco Inc.
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