Pipes and tubular conduits – With pressure compensators – Variable capacity chambers
Patent
1990-09-20
1992-07-28
Bryant, III, James E.
Pipes and tubular conduits
With pressure compensators
Variable capacity chambers
138 26, 220721, F16L 5504
Patent
active
051333872
ABSTRACT:
A bellows is comprised of a unitary body formed of relatively thin annular walls, open at one end and closed at the other. The walls are constructed and arranged as a spiral groove, whereby the bellows can be fabricated from plastic by injection molding in a relatively inexpensive fashion. The bellows can be formed of two layers joined to one another, a backup layer formed of metal or plastic and a protective layer formed of plastic such as PFA and PVDF.
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Pietrykowski Gabriel J.
White Lawrence W.
Bryant III James E.
The Aro Corporation
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