Buckles – buttons – clasps – etc. – Separable-fastener or required component thereof – Each mating member having similarly shaped – sized – and...
Patent
1983-10-21
1985-06-25
Lyddane, William E.
Buckles, buttons, clasps, etc.
Separable-fastener or required component thereof
Each mating member having similarly shaped, sized, and...
24701, A44B 1900
Patent
active
045244952
ABSTRACT:
A separable fastener is provided, consisting of a male member with a stem portion and a T-shaped head portion, and a female member in the shape of an elongated body having a tail portion and a forward portion that is bent with respect to the tail portion. The body has an opening adjacent the bent portion, the opening of sufficient length to permit insertion of one arm of the T-shaped head portion of the male member. The bent forward portion of the female member terminates at an edge which interferes with complete passage of the T-shaped head portion through the opening in any but one particular orientation of the male member with respect to the female member. The edge has an indentation which is adapted to receive the T-shaped head portion when the male member is in that particular orientation, thus permitting the avoidance of interference and a complete passage of the T-shaped head portion through the opening. The opening also has a part wide enough to permit swivelling of the stem portion of the male member after passage of the T-shaped head portion through the opening. Preferably, the T-shaped head portion of the male member is curved when seen in section taken in a plane normal to the main extent of the stem portion, thus decreasing the likelihood that the two arms will simultaneously register in the opening of the female member and the indentation, respectively. Also, the forward portion of the female member has a concave outline when seen in the direction in which the forward portion is bent, thus decreasing the likelihood that one arm of the male member would register in the indentation.
REFERENCES:
patent: 104622 (1870-06-01), Merlett
patent: 1494610 (1924-05-01), McGlashan
patent: 1840896 (1932-01-01), Groh
patent: 3751770 (1973-08-01), Italiano
patent: 4399594 (1983-08-01), Ostermaier
Aschenbrenner Peter A.
Lyddane William E.
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