Title: Ball joint flexible wear ring and seal

Abstract: A ball joint has a flange and nut with matching spherical surfaces in the seal area of the joint. A frusto-conical wear ring seals between the matching surfaces with an inner and an outer line of contact between the ring and the surfaces to provide a spring type seal.

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Inventors: Dumar Jr., William L. (Bellevue, WA)
Ledlow, Jimmie E. (Seattle, WA)

Application Number: 06/160035
Filing Date: 1980-06-16
Publication_date: 1982-08-10
Assignee: BOEING CO

Primary Class(es): 285/263 285/334.400
Other Classes: F16L27/06; F16L27/02; F16L27/06
US Patent Ref:

1568649	January, 1926	Woodruff	Ball joint
1799834	April, 1931	Waterman	285/340	Union
2703722	March, 1955	Christophersen	285/340	Tube coupling with frusto-conical metallic seal
2949320	August, 1960	Low et al.	Valve construction
3033595	May, 1962	Bard	Ball joint
3273919	September, 1966	Billeter et al.	285/340	Adjustable plumbing fittings
3357723	December, 1967	Dumont et al.	Ball-and-socket pipe joints, and applications thereof
4273363	June, 1981	Angel	285/263	Insulated flexible pipe coupling

Other Refs: DE2205514

August, 1973

285/334.4

Primary Examiner: Callaghan, Thomas F.
Assistant Examiner:
Attorney: