Patent · US Active

Spiral hose

US11649911B2 · kind B2 · utility

0Cited by
9References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 10, 2019
Grant dateMay 16, 2023
Priority date
Expiry dateMay 9, 2040

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16L11/083
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A spiral hose includes: a tube with a first wall thickness; a first reinforcement package, arranged around a circumference of the tube, having a first rubber layer embedding at least one set of a first and second layer of wire wound in a helical path around the tube, a winding direction of the first layer being opposite from a winding direction of the second layer, which first reinforcement package has a first package thickness; a second reinforcement package, arranged around a circumference of the first reinforcement package, having a second rubber layer embedding at least a second set of a third and fourth layer of wire wound in a helical path around the first reinforcement package, a winding direction of the third layer being opposite from a winding direction of the fourth layer, which second reinforcement package has a second package thickness; and a cover layer.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.