Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Patent
1996-06-27
1998-10-27
Watkins, William
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
428156, 28104, 28105, 28106, D04H 146, B32B 324
Patent
active
058275975
ABSTRACT:
A topographical support member and method of forming a topographical support member for use in producing nonwoven fabrics, especially tricot-like nonwoven fabrics. The topographical support member includes a body having a top surface comprising a pattern of a plurality of peaks and valleys and a plurality of apertures. The apertures have a conical top portion that is surrounded by a cluster of the peaks and valleys. The center line to center line spacing of adjacent apertures is less than the major diameter of the conical top portion of the apertures. The topographical support member is formed by focusing a laser beam so that the focal point is below the top surface of a starting workpiece and drilling with the laser beam the predetermined pattern of tapered apertures. The pattern of tapered apertures forms the cluster of peaks and valleys surrounding each aperture on the top surface of the resulting support member.
REFERENCES:
patent: 4342314 (1982-08-01), Rudel et al.
patent: 4995151 (1991-02-01), Siegel et al.
patent: 5098764 (1992-03-01), Drelich et al.
patent: 5158819 (1992-10-01), Goodman, Jr. et al.
James William A.
Kelly William G. F.
Mc-Neil-PPC, Inc.
Watkins William
LandOfFree
Topographical support member for producing nonwoven fabrics does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Topographical support member for producing nonwoven fabrics, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Topographical support member for producing nonwoven fabrics will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1612399