Appartaus for determining the permeability of a web to air

Details Appartaus for determining the permeability of a web to air Appartaus for determining the permeability of a web to air

1990-02-09

1991-02-26

Chapman, John

Measuring and testing

With fluid pressure

Porosity or permeability

73 377, G01N 1508

Patent

active

049952714

ABSTRACT:
The testing head of an apparatus for determining the permeability of a web to air comprises two rotatable parallel contact rollers, which are mounted between two end walls and comprise a rubber-elastic sheath each, and two sealing belts, which are trained around said contact rollers at both ends thereof and adjacent to their outer edges are provided with a sealing lip, which contacts the adjacent end wall. An endless covering belt is trained around reversing pulleys so that a suction space which is provided between the contact rollers and serves to suck a stream of measuring air through the web is closed at the top.

REFERENCES:
patent: 3218844 (1965-11-01), Kleist et al.

Affiliated with

Also associated with

Rating

Appartaus for determining the permeability of a web to air does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Appartaus for determining the permeability of a web to air, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Appartaus for determining the permeability of a web to air will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-287489