Heavy duty toggle bolt fastener assembly, and method of installing and removing the same

A toggle bolt fastener assembly for mounting articles upon a panel member, comprising:

• a toggle housing body, defining a longitudinal axis, to be mounted within a panel member;
• first and second pairs of longitudinally extending slots respectively defined within first and second pairs of oppositely disposed side wall portions of said toggle housing body;
• a nut member movably mounted within said toggle housing body and having an internally threaded bore adapted to be threadedly engaged with a threaded fastener whereby said nut member can be moved translationally along said longitudinal axis of said toggle housing body when the threaded fastener is rotated around said longitudinal axis of said toggle housing body;
• toggle means mounted upon said nut member for movement between first inoperative positions at which said toggle means are disposed substantially internally within said toggle housing body so as to permit said toggle housing body to be inserted into and removed from the panel member, and second operative positions at which said toggle means project outwardly through said first pair of slots defined within said first oppositely disposed side wall portions of said toggle housing body so as to fixedly retain said toggle housing body mounted within the panel member;
• sleeve means mounted upon said toggle housing body for enabling said toggle means to project outwardly to said second operative positions, and for causing said toggle means to be retracted inwardly to said first inoperative positions, depending upon the disposition of said nut member along said longitudinal axis of said toggle housing body, such that said toggle means can be repetitively moved between said first inoperative and second operative positions whereby said toggle bolt fastener assembly can be repetitively mounted upon and removed from the panel member so as to be re-used for repetitively mounting articles upon the panel member;
• and
• lug means defined upon said nut member and projecting outwardly through said second pair of slots defined within said second oppositely disposed side wall portions of said said toggle housing body for operatively cooperating with said toggle housing body so as to mount said nut member within said toggle housing body in such a manner that said internally threaded bore of said nut member is always disposed coaxially with respect to said longitudinal axis defined within said toggle housing body, when said toggle means is disposed at both said first inoperative and second operative positions with respect to said toggle housing body, so as to ensure the proper threaded engagement of the threaded fastener with said nut member and the translational movement of said nut member along said longitudinal axis of said toggle housing body when the threaded fastener is rotated around said longitudinal axis of said toggle housing body.