Sleeve with folds therein

Details Sleeve with folds therein Sleeve with folds therein

1976-02-10

1978-03-21

Aegerter, Richard E.

Pipes and tubular conduits

Flexible

Corrugated

138DIG11, F16L 1111

Patent

active

040797570

ABSTRACT:
A sleeve of plastomeric or elastomeric material with inner and outer peripheral wall sections which are interconnected by connecting wall sections decreasing in thickness from said inner peripheral wall sections toward said outer peripheral wall sections. Each of the outer peripheral wall sections is provided with an intermediate constriction dividing the respective outer peripheral wall section into two foldable sections.

REFERENCES:
patent: 2739089 (1956-03-01), Hageltorn
patent: 3201111 (1965-08-01), Afton
patent: 3313319 (1967-04-01), Osborn et al.
patent: 3559692 (1971-02-01), Mantelet

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