Patent · US Active

Flexible multi-walled tubing assembly

US8231993B2 · kind B2 · utility

3Cited by

59References

19Claims

0Family size

Assignee

Deeya Energy, Inc. · US

Inventors

Saroj Kumar Sahu · Tracy, US
Suresh Kumar Natarajan · Kanchinakote, IN
Bruce Conway · Doylestown, US

Key dates

Filing date	Oct 9, 2009
Grant date	Jul 31, 2012
Priority date	—
Expiry date	Oct 19, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49885
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A multi-walled tubing assembly includes an outer corrugated tube and an inner tube received in the outer tube, and may receive an insert. The inner tube is made from a resilient material. The outer tube is structurally rigid. The insert may be plain and used in conjunction with one or more adhesives. The insert may include a section with barbs or teeth which, once inserted into the inner tube, engage with the corrugations of the outer tube. Some embodiments result in a good seal and mechanically fix the tubing assembly.

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