Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Having separate expander means – Bulged by axially contracting ends
Patent
1985-04-02
1989-11-07
Gall, Lloyd A.
Expanded, threaded, driven, headed, tool-deformed, or locked-thr
Having separate expander means
Bulged by axially contracting ends
411340, 411344, F16B 1304
Patent
active
048787906
ABSTRACT:
An expansible plastic fastener comprising a generally elongated body portion, a collar member, and locking means comprising a pair of reinforced toggle arms. The body portion has a generally central opening for reception of an elongated retaining element. The reinforcement provides cooperative resilient interaction with the toggle arms to assist movements toward their collapsed and expanded portions while simultaneously contributing to their holding strength. The fastener can also include a Y-shaped reinforcing portion pivotally connected to the locking means of the body portion by flexible connector means. This Y-shaped portion may include means for engaging an elongated retaining element in the form of a threaded member. Also, a fastening kit comprising a fastener of the invention along with a key for expanding the locking means to its optimum expanded position or a fastener of the invention with an elongated retaining element.
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Garfield Nathaniel H.
McSherry Thomas W.
Gall Lloyd A.
Mechanical Plastics Corp.
Nissenbaum Israel
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