Patents Represented by Attorney, Agent or Law Firm Lerner & Greenberg, P.A.
  • Flat actuator or sensor with internal prestress
    Patent number: 7045933
    Abstract: A flat multilayered component for use as an actuator or a sensor, is described. The flat multilayered component contains a layer of electrically activatable material, a passive middle layer disposed adjacent the layer of electrically activatable material, and a further passive material layer disposed adjacent the passive middle layer. The passive middle layer has a higher coefficient of linear thermal expansion than both of the layer of electrically activatable material and the further passive middle layer.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: May 16, 2006
    Assignee: Caterpillar Inc
    Inventor: Bernhard Döllgast
  • Removal of pollution from aqueous bodies
    Patent number: 6605212
    Abstract: A method and device for removing pollution from polluted water, consisting of a rod on which are mounted an array of spaced magnesium plates and an array of spaced copper plates. The copper plates are in contact with the magnesium plates. Polluted water passing through the plates results in precipitates of the pollutants which can be mechanically removed.
    Type: Grant
    Filed: May 1, 2001
    Date of Patent: August 12, 2003
    Inventor: Alan Marsden