Vacuum cleaner hose having alternating height corrugations

Details Vacuum cleaner hose having alternating height corrugations Vacuum cleaner hose having alternating height corrugations

1986-12-30

1988-07-12

Bryant, III, James E.

Brushing, scrubbing, and general cleaning

Accessories

Coating applicator loading means

138121, 138122, 138178, 181207, A47G 2908, F16F 700

Patent

active

047560452

ABSTRACT:
A vacuum cleaner hose comprises alternating height corrugations which break up airflow and reduce or eliminate whistle during vacuum cleaner operation. The hose likewise provides a high degree of flexibility, crush and kink resistance, and returnability back to its original shape. The hose may be formed of a single non-reinforced member by an extrusion blow-molding process. In one embodiment, the widths of the corrugations alternate with the heights.

REFERENCES:
patent: 3234969 (1966-02-01), Du Mont
patent: 3572393 (1971-03-01), Eisert
patent: 3605817 (1971-09-01), Baumon et al.
patent: 3823702 (1958-02-01), November
patent: 4716642 (1987-12-01), Lalikos et al.

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