Patents by Inventor Douglas M. Haney

Douglas M. Haney 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).

  • Process for the preparation of flexible circuits
    Patent number: 4460427
    Abstract: Process for the preparation of flexible circuits formed from flexible photohardenable elements having at least one organic elastomeric polymeric binder which comprises(a) exposing imagewise said element,(b) applying particulate conductive metal, e.g., nickel, copper, to the unexposed image areas, optionally(c) heating the metal bearing areas, then(d) removing excess metal particles, optionally(e) fixing the particulate metal to the layer by heating, exposing to UV light or mechanical embedding, and(f) plating electrolessly or soldering the metal containing areas. The process can be operated continuously to prepare single and double layer flexible printed circuits, membrane switches, etc.
    Type: Grant
    Filed: July 5, 1983
    Date of Patent: July 17, 1984
    Assignee: E. I. DuPont de Nemours and Company
    Inventors: Douglas M. Haney, John W. Lott
  • Process for the preparation of flexible circuits
    Patent number: 4411980
    Abstract: Process for the preparation of flexible circuits formed from flexible photohardenable elements having at least one organic elastomeric polymeric binder which comprises(a) exposing imagewise said element,(b) applying particulate conductive metal, e.g., nickel, copper, to the unexposed image areas, optionally(c) heating the metal bearing areas, then(d) removing excess metal particles, optionally(e) fixing the particulate metal to the layer by heating, exposing to UV light or mechanical embedding, and(f) plating electrolessly or soldering the metal containing areas. The process can be operated continuously to prepare single and double layer flexible printed circuits, membrane switches, etc.
    Type: Grant
    Filed: September 21, 1981
    Date of Patent: October 25, 1983
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Douglas M. Haney, John W. Lott