Patent · US Expired

Foam packaging tray and packaging method using same

US6279738A · kind A · utility

10Cited by
21References
34Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 17, 2000
Grant dateAug 28, 2001
Priority date—
Expiry dateJun 17, 2020

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB65D65/44
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

A foam sheet comprising a cellular structure having two or more interconnected cells in fluid communication with one another, the foam sheet being in the form of a tray. One or more perforations are provided in the exterior surface of the tray, and extend into the cellular structure of the foam sheet to fluidly communicate with the interconnected cells. This arrangement is sufficient to permit gas to escape from the cellular structure in order to substantially prevent damage to the tray upon exposure thereof to a reduction in ambient pressure. A method of making the trays and a packaging method employing such trays is also disclosed.

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