Patents by Inventor Janine M. Rizer

Janine M. Rizer has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Cementitious composite material
    Patent number: 4505753
    Abstract: A cementitious composite material exhibiting an exceptional combination of high tensile, flexural and compressive strengths as compared with generally accepted values for Class H cements is produced from a mixture having a low pH and containing a tobermorite-like gel.
    Type: Grant
    Filed: June 30, 1983
    Date of Patent: March 19, 1985
    Assignee: Research One Limited Partnership
    Inventors: Barry Scheetz, Janine M. Rizer, Michael Hahn
  • Light-weight cementitious product
    Patent number: 4504320
    Abstract: A glass-fiber reinforced light-weight cementitious product having a density of less than 85 pounds per cubic foot, a high tensile strength and a high compressive strength, when cured, and hence, suitable for structural articles in which such properties are required. The product is formulated from a mixture in which the aggregate comprises substantially equal parts by weight of fly ash cenospheres and silica fume.
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: March 12, 1985
    Assignee: Research One Limited Partnership
    Inventors: Janine M. Rizer, Carl Gotzmer
  • Rapid set lightweight cement product
    Patent number: 4501830
    Abstract: A lightweight cement product formed from a mixture comprising cement, condensed silica fume, flyash, cenospheres, finely divided crystalline silica particles, epoxy emulsion, curing agent, accelerator and water which hardens in less than one hour to produce articles with a density less than 90 pounds per cubic foot and a tensile strength of at least 600 psi and a compressive strength of at least 6000 psi after curing for 1 day at 60.degree. C.
    Type: Grant
    Filed: January 5, 1984
    Date of Patent: February 26, 1985
    Assignee: Research One Limited Partnership
    Inventors: Richard Miller, Janine M. Rizer
  • Cementitious composite material with stainless steel particulate filler
    Patent number: 4482385
    Abstract: A cementitious composite material exhibiting a unique combination of high strength, vacuum integrity and thermal properties. Objects made of the material may be cast from mixtures in which a major constituent is a filler which consists of stainless steel particles of particular shapes and sizes. The cast objects are characterized by the absence of a continuous network of interconnected pores and by the presence of a tobermorite phase in the material.
    Type: Grant
    Filed: June 30, 1983
    Date of Patent: November 13, 1984
    Assignee: Research One Limited Partnership
    Inventors: John A. Satkowski, Barry Scheetz, Janine M. Rizer, Carl Gotzmer