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Gerry H Ehrhardt

Deceased

from West Des Moines, IA

Also known as:
  • Gerald H Ehrhardt
Phone and address:
1705 19Th St, West Des Moines, IA 50265
515 225-1921

Gerry Ehrhardt Phones & Addresses

  • 1705 19Th St, West Des Moines, IA 50265 • 515 225-1921
  • Adel, IA

Us Patents

  • Flow Agent-Dispersant Composition

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  • US Patent:
    51887657, Feb 23, 1993
  • Filed:
    Sep 5, 1991
  • Appl. No.:
    7/755607
  • Inventors:
    Gerry H. Ehrhardt - Adel IA
  • International Classification:
    B01J 800
    C09D18900
    C09D19108
  • US Classification:
    2523635
  • Abstract:
    Flow agent-dispersant composition for ink systems and the like comprising montan wax having from 3 to 10% of lecithin uniformly dispersed therein and a process for forming the same.
  • Chemical Carbonless Copy Paper And Transfer Medium Therefor

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  • US Patent:
    43472826, Aug 31, 1982
  • Filed:
    Jun 18, 1980
  • Appl. No.:
    6/160724
  • Inventors:
    Gerry H. Ehrhardt - West Des Moines IA
    Gene D. Carlson - Ankeny IA
  • Assignee:
    Frye Copysystems, Inc. - Des Moines IA
  • International Classification:
    B41M 522
    B41M 516
  • US Classification:
    4283204
  • Abstract:
    An improved chemical carbonless copy paper system including an improved hot melt type of coating for CB type pressure sensitive carbonless copy paper having discrete liquid droplets of metallic salt solution electron accepting chromogenic reagent material contained therein.
  • Chemical Carbonless Copy Paper And Image Receptor Medium Therefor

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  • US Patent:
    43279392, May 4, 1982
  • Filed:
    Jun 16, 1980
  • Appl. No.:
    6/159587
  • Inventors:
    Gerry H. Ehrhardt - West Des Moines IA
    Gene D. Carlson - Ankeny IA
  • Assignee:
    Frye Copysystems, Inc. - Des Moines IA
  • International Classification:
    B41M 516
    B41M 522
  • US Classification:
    282 275
  • Abstract:
    Improved receptor or CF coating composition for chemical carbonless copy paper employing spirit blue in carbinol form as a dye precursor type chromogenic reagent material.
  • Flow Agent For Ink Systems

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  • US Patent:
    39416089, Mar 2, 1976
  • Filed:
    May 23, 1973
  • Appl. No.:
    5/363083
  • Inventors:
    Gerry H. Ehrhardt - West Des Moines IA
    Ronald L. Reeves - Des Moines IA
  • Assignee:
    Frye Copysystems, Inc. - New York NY
  • International Classification:
    B01F 1700
    C09D 300
    C09D 1110
  • US Classification:
    106285
  • Abstract:
    An improved dispersant and flow agent for ink systems formed from a selectively oxidized linear unsaturated hydrocarbon having a carbon to carbon terminal double bond and a process for forming the same.
  • Water Insensitive Image Receptor Coating

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  • US Patent:
    42264421, Oct 7, 1980
  • Filed:
    Apr 27, 1979
  • Appl. No.:
    6/034029
  • Inventors:
    Gene D. Carlson - Ankeng IA
    Gerry H. Ehrhardt - Des Moines IA
  • Assignee:
    Frye Copysystems, Inc. - Des Moines IA
  • International Classification:
    B41M 522
  • US Classification:
    282 275
  • Abstract:
    A water insensitive image receptor coating composition for pressure sensitive carbonless type transfer media.

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