Method and apparatus for testing characteristics of extruded elastomeric weatherstrips
US5033308A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jun 27, 1990 |
| Grant date | Jul 23, 1991 |
| Priority date | — |
| Expiry date | Jun 27, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0288
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Method and apparatuses are disclosed for testing various characteristics of an elastomeric weatherstrip such as seal load, stress relaxation, and the recovery rate. One embodiment of the invention is an apparatus including a member defining a surface for exerting a force to deflect a portion of the weatherstrip a selected distance. The surface is oriented to be parallel to an edge defined by the portion along the weatherstrip's longitudinal axis in order to ensure that the exerted force is evenly distributed. The apparatus further includes an adjustable support for positioning the weatherstrip with respect to the surface and for bringing the edge into contact with the surface sufficiently to cause the portion to deflect the selected distance. The apparatus also includes a device for measuring the force exerted during deflection on the surface by the portion of the weatherstrip. Another embodiment of the invention includes a device for continually monitoring the force exerted on the surface by the portion over an extended period of deflection. The force measuring device can include a plurality of force measuring devices for independently measuring horizontal and vertical components …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.