Cushioned fastener joint

Details Cushioned fastener joint Cushioned fastener joint

1981-04-14

1983-09-20

Kundrat, Andrew V.

Joints and connections

Having a joining piece extending through aligned openings in...

29523, 29526R, 29507, 411360, 411 69, 403228, 403224, F16B 1900

Patent

active

044052561

ABSTRACT:
A method of forming a fastener joint in a composite material work piece subject to an operating load comprising the steps of forming a hole of a prescribed hole diameter through the composite material work piece placing a tubular metal sleeve member with a compressible cushion layer around the outside thereof within the hole through the work piece; non-elastically expanding the tubular metal sleeve member radially and circumferentially to force the cushion layer into contact with the hole surface and compress the cushion layer; and placing a fastener in the tubular metal sleeve member to maintain the sleeve member radially and circumferentially expanded and the cushion layer compressed to a thickness to transmit the operating load from the work piece to the fastener through the cushion layer and sleeve member. The joint formed by the method is also disclosed.

REFERENCES:
patent: 2501567 (1950-03-01), Huck
patent: 2728593 (1955-12-01), Hutton
patent: 2740650 (1956-04-01), Hutton
patent: 2767877 (1956-10-01), Newsom
patent: 2777620 (1956-12-01), Thiry et al.
patent: 3835615 (1974-09-01), King
patent: 3835688 (1974-09-01), King
patent: 3875649 (1975-04-01), King
patent: 3949535 (1976-04-01), King
patent: 4102030 (1978-07-01), King

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