US 7,597,952 B2
	Unitized fibrous concrete reinforcement
Paul Schmidt, Pretty Prairie, Kans. (US); Gene Lamb, Kingman, Kans. (US); and David Anderson, Kingman, Kans. (US)
Assigned to Polymer Group, Inc., Charlotte, N.C. (US)
Filed on Jun. 02, 2006, as Appl. No. 11/446,546.
Application 11/446546 is a continuation of application No. 10/763463, filed on Jan. 23, 2004, granted, now 7,067,002.
Claims priority of provisional application 60/442672, filed on Jan. 24, 2003.
Claims priority of provisional application 60/442574, filed on Jan. 24, 2003.
Claims priority of provisional application 60/474049, filed on May 29, 2003.
Claims priority of provisional application 60/474039, filed on May 29, 2003.
Prior Publication US 2006/0222836 A1, Oct. 05, 2006
This patent is subject to a terminal disclaimer.
Int. Cl. D04H 1/00 (2006.01); B32B 18/00 (2006.01)

U.S. Cl. 428—292.1  [428/294.7]

19 Claims

1. A cementitious reinforcement comprising at least one unitized fibrous construct comprised of two or more reinforcing fibrous components and one or more circumferential retaining elements, wherein said one or more circumferential retaining elements combine said reinforcing fibrous components in an essentially parallel orientation as a single group of said reinforcing fibrous components and said one or more circumferential retaining elements extend spirally and circumscribe about an overall circumference defined by said single group of combined and essentially parallel reinforcing fibrous components, wherein said construct having an overall length and a total circumferential surface area being defined as the overall length and the overall circumference of said construct, and no more than 80% of the total circumferential surface area of said unitized fibrous construct being circumscribed by circumferential retaining elements.