Fabric-reinforced cementitious sheet-like structures and their production

Patent 4778718 Issued on October 18, 1988. Estimated Expiration Date:

March 26, 2007. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Abstract Claims Description Full Text

Patent References

Cold formable, reinforced panel structures and methods for producing them
Patent #: 4159361
Issued on: 06/26/1979
Inventor: Schupack

Air-inflated fabric-reinforced concrete shells
Patent #: 4446083
Issued on: 05/01/1984
Inventor: Nicholls

Production of fibre-reinforced cementitious composition
Patent #: 4528238
Issued on: 07/09/1985
Inventor: Alford

Three dimensionally reinforced fabric concrete Patent #: 4617219
Issued on: 10/14/1986
Inventor: Schupack

Inventor

Nicholls, Robert L.

Assignee

University of Delaware

Application

No. 07/030410 filed on 03/26/1987

US Classes:

442/394, Nonwoven fabric with a preformed polymeric film or sheet264/257, One component is a fibrous or textile sheet, web, or batt264/333, Inorganic hydraulic settable material shaping428/454, Sand, clay or mica (silica excluded)428/483, Next to addition polymer from unsaturated monomers428/516, Monoolefin polymer428/703, Water-settable material (e.g., gypsum, etc.)442/396, Vinyl polymer or copolymer sheet or film (e.g., polyvinyl chloride, polyvinylidene chloride, polyvinyl acetate, etc.)442/398, Olefin polymer or copolymer sheet or film (e.g., polypropylene, polyethylene, ethylene-butylene copolymer, etc.)524/5Derived from carboxylic acid or derivative

Examiners

Primary: Lesmes, George F.
Assistant: Monroe, J.

Attorney, Agent or Firm

Ryan; James H.

International Classes

B32B 27/12 (20060101)
B28B 1/52 (20060101)
B28B 19/00 (20060101)

Abstract

A bendable thin, sheet-like structure having a cementitious matrix reinforced with a three-dimensional fabric of an organic fiber uniformly distributed throughout the thickness of the structure and a continuous process for its production.