Patent · US Expired

Apparatus and method for measuring the tensile strength of fabric

US5813277A · kind A · utility

5Cited by

7References

4Claims

0Family size

Assignee

Firma Carl Freudenberg · DE

Inventors

Klaus Schmidt
Peter Schmitt · Erlangen, DE

Key dates

Filing date	Jul 25, 1995
Grant date	Sep 29, 1998
Priority date	—
Expiry date	Jul 25, 2015

Classification

Technology area (CPC G)Physics
CPC primaryG01N33/367
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

An apparatus for measuring the tensile strength of a textile fabric comprises a measuring system having electromagnet, a mass capable of being held in place by the electromagnet, a piezoelectric force sensor connected to said mass, and a rounded-off impact body. By de-energizing the electromagnet, the impact body free-falls onto the textile fabric, which is held in place beneath the impact body under tension. The impact force detected by the sensor is converted to a form with which a computer can compute the tensile strength of the fabric. A series of measurements can be made of a length of fabric advanced through the apparatus in successive stages.

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