Tube spring steel tab lock coupling connector and method for con

Pipe joints or couplings – Essential catch – Leaf spring

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Details

285 7, 285233, 285307, F16L 3700

Patent

active

050391399

ABSTRACT:
A coupling (10) is disclosed for joining together a first tube (12) and a second tube (14) to form a continuous fluid passageway. The first tube (12) has a mount (20) a predetermined distance from its end (18) and the second tube (14) has a return bend on its end (36). Second tube (14) telescopically fits over first tube (12). A cage (22) having inclined locking tabs (30) is mounted by mount (20) externally of first tube (12). Locking tabs (30) cam to allow the return bend (36) of second tube (14) to pass the locking tabs (30). Tabs (30) return to their at rest inclination after the return bend (36) passes, to trap the return bend (36) between the locking tabs (30) and mount (18), thereby locking the first and second tubes (12,14) against disconnection and providing a visible connection to allow verification of the connection.

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Metal Stamping Design, Carlson, R. F., 1961, Prentice Hall, pp. 36-37, 180.

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