Metal expansion joint and vibration absorber apparatus for pipe

Details Metal expansion joint and vibration absorber apparatus for pipe Metal expansion joint and vibration absorber apparatus for pipe

1995-05-17

1996-08-06

Melius, Terry Lee

Pipe joints or couplings

Flexible joint, rigid members

Bellows

285286, 285300, F16L 5102

Patent

active

055427154

ABSTRACT:
The apparatus includes a first protection sleeve element having a substantially radially upturned annular end portion, a second protection sleeve element having also a substantially radially upturned end portion and a bellows. The bellows ends at both sides in a neck. A cylinder shaped portion of the first protection sleeve element is surrounded by an envelope part having a cylinder shaped portion and a substantially radially upturned annular end portion. Likewise, a cylinder shaped portion of the second portion sleeve element is surrounded by an envelope part having a cylinder shaped portion and a substantially radially upturned annular end portion. The necks of the bellows are sandwiched between the cylinder shaped portions of the respective envelope parts and the first protection sleeve element and the second protection sleeve element and are welded thereto. The upturned end portions of the respective envelope parts and the first and second protection sleeve elements contact each other and form the flanges of the apparatus.

REFERENCES:
patent: 1565254 (1925-12-01), Bystrom
patent: 1726483 (1929-08-01), Giesler
patent: 2337038 (1943-12-01), Fentress
patent: 2616728 (1952-11-01), Pitt
patent: 2712456 (1955-07-01), McCreery
patent: 2840394 (1958-06-01), Rohr
patent: 3298680 (1967-01-01), Jablin
patent: 3492030 (1970-01-01), Harrison et al.
patent: 4106798 (1978-08-01), Haug
patent: 5480194 (1996-01-01), Mantoan et al.
U.S. patent application Ser. No. 08/342,835 Mantoan et al. Nov. 21, 1994.

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