Buckles – buttons – clasps – etc. – Buckles – One-piece
Patent
1978-11-27
1980-12-02
Kannan, Philip C.
Buckles, buttons, clasps, etc.
Buckles
One-piece
24221R, 24230TC, A44B 1700
Patent
active
042362830
ABSTRACT:
A quick connect and disconnect coupling for connecting the free ends of chains, wires or cables and more particularly for connecting the free ends of pieces of jewelry such as bracelets, chain bracelets, neck chains, necklaces and the like. The coupling of the invention comprises a male member having a T-shaped element which is adapted to be introduced into a slotted aperture in the end plate of a female member. A pair of flat springs disposed in the female member engages the branches of the T-shaped element and resiliently rotate the male member such that the projecting lateral ears of the T-shaped element are engaged behind the end plate of the female member. For disconnecting the coupling, the male and female members are rotated relative to each other, against the torque exerted by the springs, until the laterally projecting ears of the T-shaped element registers with the slot in the female member end plate and the male member may be removed from the female member. A modification of the coupling of the invention comprises a groove on the inner face of the female member end plate and a cam arrangement directing the inner face of the lateral ears of the T-shaped element into the groove to lock the members together against accidental uncoupling.
REFERENCES:
patent: 256755 (1882-04-01), Spangler
patent: 2203973 (1940-06-01), Walls
patent: 2220810 (1940-11-01), Bright
patent: 3286316 (1966-11-01), Marosy
patent: 3427552 (1969-02-01), Sauer et al.
patent: 3540087 (1970-11-01), Marosy
patent: 3540091 (1970-11-01), Marosy
patent: 3900927 (1975-08-01), D'Angelo et al.
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