Patent · US Expired

Asymmetrical convolute tube

US6123113A · kind A · utility

19Cited by
13References
16Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMay 1, 1997
Grant dateSep 26, 2000
Priority date
Expiry dateMay 1, 2017

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S138/11
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A tube having a cylindrical main body and a thin wall defined by an inner surface and outer surface. The tube includes a first segment having a generally constant cylindrical cross-section and another segment having a variable cross-section containing convolutions to allow for flexing of the tube during installation. The convolutions extend less than the entire circumference of the tube or have tapered side walls which substantially reduce the size of the convolutions as the convolutions extend from one position along the circumference to a second position.

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