Vacuum cleaner hose and method and apparatus for making the same

Details Vacuum cleaner hose and method and apparatus for making the same Vacuum cleaner hose and method and apparatus for making the same

1993-09-10

1996-02-20

Scherbel, David

Pipes and tubular conduits

Flexible

Corrugated

138DIG11, F16L 1111

Patent

active

054921511

ABSTRACT:
A vacuum cleaner hose and method and apparatus of making the same are provided, the hose having opposite ends and a plurality of annular corrugations between the opposite ends thereof, the corrugations comprising a plurality of alternating annular crests and annular valleys that are interconnected together by annular sidewalls, each valley and each crest defining a radius at the apex thereof, each valley being narrower than the crests and having a smaller radius than the crests.

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patent: 5145545 (1992-09-01), Winter et al.
patent: 5348051 (1994-09-01), Kallenbach

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