Method and apparatus for measuring closure forces and variances therein associated with reclosable thermoplastic zippered bags
US5154086A · kind A · utility
29Cited by
5References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 1991 |
| Grant date | Oct 13, 1992 |
| Priority date | — |
| Expiry date | Jun 28, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA44B19/16
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus and method for measuring the tactility of a zipper of a reclosable thermoplastic zippered bag of the type described in commonly-assigned U.S. Pat. No. 5,070,584, including an opposed pair of mechanical fingers defining a gap therebetween through which the zipper is made to pass, means associated with the opposed pair of mechanical fingers for continuously measuring the resistance of the male and female profiles to being interlocked by such fingers as the zipper passes through the gap defined between such fingers, and means for recording, graphing, displaying and/or analyzing these measurements.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.