Patent · US Expired

Method and apparatus for package leak testing

US6513366B1 · kind B1 · utility

20Cited by
8References
21Claims
0Family size

Assignee

Inventor

Key dates

Filing dateOct 11, 2001
Grant dateFeb 4, 2003
Priority date—
Expiry dateOct 11, 2021

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01M3/34
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A method and apparatus for testing seals of packages or containers incorporating gas permeable materials wherein the packages are placed between opposing components of a vacuum test chamber such that the seals of the packages are open to a pressure testing system. A flexible bladder backed by a foam material or pressurized fluid seal the gas permeable material afterwhich at least a partial vacuum is drawn to create pressure differential between interior sealed spaces of the packages and the exterior of the package seals. In some embodiments, flexible bladders are provided to initially seal opposite surfaces of packages having opposite gas permeable material covering layers.

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