Protective unit for water pipes and a method for setting the uni

Details Protective unit for water pipes and a method for setting the uni Protective unit for water pipes and a method for setting the uni

1978-08-17

1980-08-05

Footland, Lenard A.

Pipes and tubular conduits

With pressure compensators

Variable capacity chambers

138 28, E03B 710

Patent

active

042157269

ABSTRACT:
A protective unit for water pipes comprising an expansible cylindrical member having pleats, a cylindrical cover having pleats, a cylindrical cover having ventilations therethrough and such a size as to cover the whole cylindrical member, and a metallic cap having two grooves to engage with the cylindrical member and the cap. The expansible cylindrical member, particularly the pleats will absorb any expansion of freezing water in the water pipes to prevent the pipes from having cracks. The cap firmly holds the end portions of the cylindrical member thereby securing an excellent contact therebetween.

REFERENCES:
patent: 435927 (1890-09-01), Ginty
patent: 3091258 (1963-05-01), Marette
patent: 3415277 (1968-12-01), Mitchell et al.
patent: 3536102 (1970-10-01), Allewitz et al.
patent: 3766992 (1973-10-01), Tiraspolsky et al.
patent: 3878867 (1975-04-01), Dirks

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