Patent · US Expired

Glue bond tester

US4080825A · kind A · utility

2Cited by

4References

4Claims

0Family size

Assignee

Champion International Corporation Limited · US

Inventors

Allan L. Liebrenz · Windom, US
Verne D. O'Keefe · Roberts, US
Richard Soderberg · Asperg, DE

Key dates

Filing date	Nov 22, 1976
Grant date	Mar 28, 1978
Priority date	—
Expiry date	Nov 22, 1996

Classification

Technology area (CPC G)Physics
CPC primaryG01N19/04
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

Apparatus to test the strength of a glue bond joint connecting two sheets of paperboard or similar sheet-like material. The apparatus automatically produces the bond, duplicating the production process, and then forces the sheets apart by moving the sheets around a bar and measuring deflection of the assembly to which the bar is attached.

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