In-line pressure balanced universal expansion joint

Details In-line pressure balanced universal expansion joint In-line pressure balanced universal expansion joint

1993-05-20

1994-04-05

Arola, Dave W.

Pipe joints or couplings

With strain relief

285227, F16L 3500

Patent

active

052998401

ABSTRACT:
An in-line, pressure balanced universal expansion joint for a piping system has a central bellows and opposite first and second end bellows secured to the opposite first and second ends of the central bellows. A first gimbal assembly pivotally links the outer end of the first end bellows to the second end of the central bellows. A second gimbal assembly links the outer end of the second end bellows to the first end of the central bellows. Each gimbal assembly has a gimbal ring pivotally linked to the outer end of the respective end bellows via a first linkage and to the respective end of the central bellows via a second linkage for pivotal movement about two perpendicular pivot axes.

REFERENCES:
patent: 2314776 (1943-03-01), Dittus et al.
patent: 2568923 (1951-09-01), McNeary et al.
patent: 2661963 (1953-12-01), Brown et al.
patent: 2822193 (1958-02-01), Wiethuchter et al.
patent: 4865298 (1989-09-01), Jordan
patent: 5248170 (1993-09-01), Francis
Russian Engineering Journal, vol. LV, No. 1, 1975, pp. 23-25.
Hyspan Precision Products Brochure, 1983, p. 8.

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