Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Internally threaded fastener element – e.g. – nut – etc. – Multipart
Patent
1991-05-20
1992-02-11
Gall, Lloyd A.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Internally threaded fastener element, e.g., nut, etc.
Multipart
411437, F16B 3710
Patent
active
050871617
ABSTRACT:
An essentially ring shaped member such as a stop ring is formed of an elastic material and has a gap at one section thereof. A removable spacer having a handle is disposed in the gap so as to expand the diameter of the ring shaped member. Removal of the spacer causes the elastic member to resiliently return to a condition in which its diameter is decreased. This arrangement facilitates fast and easy installation of the ring shaped member into an annular or in some cases helical groove formed in a cylindrical member.
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patent: 4236561 (1980-12-01), Monticelli
patent: 4531872 (1985-07-01), Warkotsh
patent: 4584770 (1986-04-01), Sabol
Goodheart-Wilcox Automotive Encyclopedia, p. 12, Ochiai Fastener Company, 1984 Catalog.
Gall Lloyd A.
Kananen Ronald P.
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