Flexible spherical joint

Details Flexible spherical joint Flexible spherical joint

1977-11-10

1980-10-14

Powell, Jr., Everette A.

Fluid reaction surfaces (i.e., impellers)

Articulated, resiliently mounted or self-shifting impeller...

Nonmetallic resilient mounting

416141, 308238, 267152, B64C 2738

Patent

active

042278589

ABSTRACT:
A flexible spherical bearing, comprising two end pieces connected by a stack of interconnected alternate layers of a flexible material, such as elastomer, and of a strong material, such as metallic material and at least one cavity filled with an incompressible fluid and extending between the two end pieces without the interposition of elastomer. Such a bearing is used for connecting a helicopter rotor blade to the rotor hub of this helicopter.

REFERENCES:
patent: 3012767 (1961-12-01), Jones
patent: 3083065 (1963-03-01), Hinks et al.
patent: 3228673 (1966-01-01), Hinks
patent: 3390899 (1968-07-01), Herbert et al.
patent: 3504902 (1970-04-01), Irwin
patent: 3680895 (1972-08-01), Herbert
patent: 3761199 (1973-09-01), Ferris et al.
patent: 3853426 (1974-12-01), Rybicki
patent: 4105266 (1978-08-01), Finney

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