Patent · US Active

Double-walled container and method of manufacture

US8132687B2 · kind B2 · utility

19Cited by

9References

15Claims

0Family size

Assignee

ALCOA INC. · US

Inventors

Anthony J. Fedusa · Lower Burrell, US
Robert E. Dick · Springdale Township, US
Darl G. Boysel · Delmont, US

Key dates

Filing date	Jun 26, 2009
Grant date	Mar 13, 2012
Priority date	—
Expiry date	Oct 4, 2029

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49941
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A double-walled container and method of manufacturing are disclosed. A first container having a smaller diameter than a second container is inserted into the second container. A portion of the first container is expanded and/or a portion of the second container may be narrowed so that first and second container is interlocked and form a double-walled container. The first and/or second containers may have ribs. An air gap between the first and second containers provides thermal insulation to contents of the double-walled container.

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