Patents by Inventor Harry Julich

Harry Julich 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).

  • Focusing method and frame for large-format cameras
    Patent number: 5980125
    Abstract: This invention relates to large, ie view-cameras and supplants the fixed conventional viewing screen by using instead a focusing frame partly or totally geometrically congruent with the sheetfilm holder for such a camera, said frame being temporarily inserted into this camera for focusing, the conventional sheetfilm-holder partition being replaced in the focusing frame of the invention by a transparent viewing screen of which the focusing surface faces the lens. In this manner the invention achieves coincidence, within a desired and optionally zero tolerance, of film emulsion plane and focusing surface and eliminates the errors related to uncertain positioning of the conventional viewing screen of a large-format camera.
    Type: Grant
    Filed: June 22, 1998
    Date of Patent: November 9, 1999
    Inventor: Harry Julich
  • Method and apparatus for sharpening camera-recording pictures
    Patent number: 5843604
    Abstract: This invention concerns the sharpening of camera-recorded pictures by flattening conventional photographic film as well as photographic film fitted in the manner of the invention with detachable, electrically and/or magnetically force-field responsive laminas against a camera reference-surface means which per se is the source of the field(s) acting on the film and/or is combined with separate force-field generating units generating such field(s). An optional, detachable dielectric bonding layer between such a lamina and the conventional film support allows removing the lamina after film exposure.
    Type: Grant
    Filed: November 21, 1997
    Date of Patent: December 1, 1998
    Inventor: Harry Julich
  • Method and implementing sub-assemblies and assembly to flatten photographic film during picture-taking
    Patent number: 5725979
    Abstract: A method and apparatus for flattening photographic film at the time of picture-taking involves applying a force-field to a photographic film made responsive to said force field to attract it against a reference surface. The force field may be electric, magnetic, AC, DC, or a combination of these.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: March 10, 1998
    Inventor: Harry Julich
  • Low-friction piston
    Patent number: 4178899
    Abstract: A piston comprising hydrodynamic skirts and crowns, pressure-actuated sealing rings of fixed excursion or balanced by hydrodynamic reactions, or no rings at all, stringent temperature control, ample oil on the cylinder wall even near top-dead-center, characterized by absence of abrasion between piston and cylinder and much lower friction, resulting thereby in higher fuel-economy and longer engine-life.
    Type: Grant
    Filed: September 20, 1978
    Date of Patent: December 18, 1979
    Inventor: Harry Julich