Stock material or miscellaneous articles – Structurally defined web or sheet – Including grain – strips – or filamentary elements in...
Patent
1987-06-05
1989-05-09
Swisher, Nancy A. B.
Stock material or miscellaneous articles
Structurally defined web or sheet
Including grain, strips, or filamentary elements in...
428114, 428176, 428182, 428183, 428186, B32B 328, B32B 330
Patent
active
048289027
ABSTRACT:
An extruded article is provided comprising a base element, and at least one rib element attached to the base element along its entire length. The rib element is narrower at its attachment end than at its free end, and is undulated.
The article is formed by extruding an extrudable plastic mass having a conformable state and a nonconformable state. The extrusion rate of the free end of the rib element is sufficiently faster than that of the base element. The free end of the rib element will therefore undulate as the structure is extruded. The free end of the rib element is permitted to undulate without distortion of the base element while the plastic mass is in the conformable state. The plastic mass is then converted to the nonconformable state while maintaining the undulation in the free end of the rib element.
REFERENCES:
patent: 3178328 (1965-04-01), Tittmann
patent: 3193604 (1965-07-01), Mercer
patent: 4233259 (1980-11-01), Pietratus et al.
patent: 4332757 (1982-06-01), Blackmon et al.
patent: 4384022 (1983-05-01), Fowler
patent: 4419315 (1983-12-01), Kessler
patent: 4631215 (1986-12-01), Welygan et al.
Pawlikowski, Jr. Walter W.
Welygan Dennis G.
Zemke Ronald O.
Kirn Walter N.
Minnesota Mining and Manufacturing Company
Neaveill Darla P.
Sell Donald M.
Swisher Nancy A. B.
LandOfFree
Extruded article and method of making same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Extruded article and method of making same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extruded article and method of making same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-89165