Patents by Inventor Fredy R. Zypman

Fredy R. Zypman 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).

  • Patent number: 6799464
    Abstract: A macroscopic version of the Scanning Force Microscope is described. It consists of a cantilever under the influence of external forces, which mimic the tip-sample interactions. The use of this piece of equipment is threefold. First, it serves as direct way to understand the parts and functions of the Scanning Force Microscope, and thus it is effectively used as an instructional tool. Second, due to its large size, it allows for simple measurements of applied forces and parameters that define the state of motion of the system. This information, in turn, serves to compare the interaction forces with the reconstructed ones, which cannot be done directly with the standard microscopic set up. Third, it provides a kinematics method to non-destructively measure elastic constants of materials, such as Young's and shear modules, with special application for brittle materials.
    Type: Grant
    Filed: March 7, 2001
    Date of Patent: October 5, 2004
    Assignee: University of Puerto Rico
    Inventors: Claudio Guerra-Vela, Fredy R. Zypman
  • Publication number: 20020152795
    Abstract: A macroscopic version of the Scanning Force Microscope is described. It consists of a cantilever under the influence of external forces, which mimic the tip-sample interactions. The use of this piece of equipment is threefold. First, it serves as direct way to understand the parts and functions of the Scanning Force Microscope, and thus it is effectively used as an instructional tool. Second, due to its large size, it allows for simple measurements of applied forces and parameters that define the state of motion of the system. This information, in turn, serves to compare the interaction forces with the reconstructed ones, which cannot be done directly with the standard microscopic set up. Third, it provides a kinematics method to non-destructively measure elastic constants of materials, such as Young's and shear modules, with special application for brittle materials.
    Type: Application
    Filed: March 7, 2001
    Publication date: October 24, 2002
    Inventors: Claudio Guerra-Vela, Fredy R. Zypman
  • Patent number: 6452170
    Abstract: An apparatus and method for determining a force of interaction between a sample and a tip on a cantilever. The method uses a non-Hookian equation to model the cantilever as it is deflected by the force of interaction between the sample and the cantilever tip. The sample is positioned at a predetermined distance from the cantilever tip such that the cantilever is deflected by the force of interaction. The positions of a plurality of points on the cantilever are then rapidly measured and the force of interaction from the measured positions is then obtained using a non-Hookian model that accounts for higher order vibrational modes of the cantilever.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: September 17, 2002
    Assignees: University of Puerto Rico, Case Western Reserve University
    Inventors: Fredy R. Zypman, Steve Eppell