Compressible pipe spacer used in welding

Details Compressible pipe spacer used in welding Compressible pipe spacer used in welding

1999-04-28

2000-05-09

Nicholson, Eric K.

Pipe joints or couplings

With assembly means or feature

Molded joint facilitator

2852881, 228 50, B23K 3102, F16L 1304

Patent

active

060593202

ABSTRACT:
A split, ring-shaped pipe spacer used to maintain separation between a pipe and a fitting shoulder during welding. The spacer has pairs of yieldable offset segments. The two segments of each pair bulge from the spacer body in opposite directions to maintain proper spacing between the pipe and fitting during welding. The opposing offset segments also permit bi-directional insertion of the spacer into the fitting, position the spacer body out of contact with both the pipe and the fitting, and minute and distribute the stress imparted to the spacer when forming the segments during manufacturing. The spacer ends forming the split in the spacer have a tongue-in-groove shape to accommodate circumferential expansion of the spacer under compression of the pipe.

REFERENCES:
patent: Re22725 (1946-02-01), von Ahrens
patent: 1668297 (1928-05-01), Wuerfel
patent: 1689608 (1928-10-01), Williams
patent: 2423848 (1947-07-01), O'Conner
patent: 4346918 (1982-08-01), Lycan
patent: 4505420 (1985-03-01), Wittenbach
patent: 4674772 (1987-06-01), Lycan
patent: 5253507 (1993-10-01), Lycan
patent: 5915737 (1999-06-01), Lycan

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