Patent · US Expired

Method for storing thermoplastic preforms in a container

US6820396B2 · kind B2 · utility

3Cited by
9References
13Claims
0Family size

Assignee

Inventor

Key dates

Filing dateNov 4, 2002
Grant dateNov 23, 2004
Priority date—
Expiry dateNov 4, 2022

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65B63/00
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

In order to store thermoplastic preforms in a container, the outside faces of the preforms are treated so as to make said outside faces more slippery, and the preforms are stored in bulk in the container, with the outside faces of the preforms after treatment presenting a coefficient of friction that is low enough to ensure that the packing density, i.e. the number of preforms stored per unit volume, is greater than the packing density that would be obtained under the same conditions with non-treated preforms.

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