Patents by Inventor Javier Malvar

Javier Malvar 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).

  • Split pipe testing device for the measurement of bond of reinforcement under controlled confinement
    Patent number: 5325722
    Abstract: A method and apparatus for determining the stress-slip relationship of specimens in concrete including a pipe with a plurality of longitudinal slots evenly spaced around the circumference of the pipe, a specimen and concrete block located in one end of the pipe, a confining device for applying a constant force to the circumference of the concrete block before, during and after a test, a device for measuring the displacement of the specimen relative to the concrete block, and a device for measuring the radial displacement of the concrete block.
    Type: Grant
    Filed: August 14, 1992
    Date of Patent: July 5, 1994
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventor: Javier Malvar