Patent · US Active

Reinforced can end—can body joints with laser seaming

US7772518B2 · kind B2 · utility

13Cited by

26References

5Claims

0Family size

Assignee

REXAM BEVERAGE CAN COMPANY · US

Inventors

Gopalaswamy Rajesh · Alpharetta, US
Michael R. Gogola · Itasca, US
Timothy L. Turner · Pecatonica, US

Key dates

Filing date	Feb 22, 2005
Grant date	Aug 10, 2010
Priority date	—
Expiry date	Mar 1, 2029

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB65B7/2878
WIPO fieldHandling
WIPO sectorMechanical engineering

Abstract

A can end and can body are seamed to each other using a seaming roller, seaming chuck and a laser fusing the peripheral portion of the can end to the can body. Laser seaming allows less metal to be used in the can end and can body. The can end and can body seam is further reinforced in order to ensure that the can is capable of withstanding internal pressures. The reinforcing techniques include crimping the seam with one or more crimping rollers, reforming the seam so as to incline the seam towards a central axis extending through the center of the can end and can body, and using multiple laser welds spaced apart from each other in the vicinity of the seam.

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