Patents by Inventor John N. Hall

John N. Hall 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).

  • Device for controlling ectoparasites
    Patent number: 4606478
    Abstract: A device for dispensing liquid pesticide while attached to an animal. The device comprises a sealed reservoir for the liquid pesticide, a fibrous wick of less than 3 millimeters diameter in communication with the reservoir and through which liquid pesticide passes out of the reservoir into the atmosphere, and separate venting device for preventing negative pressure from developing in the reservoir.
    Type: Grant
    Filed: September 26, 1983
    Date of Patent: August 19, 1986
    Assignee: NOR-AM Chemical Company
    Inventors: Richard J. Hack, Jakie A. Hair, John N. Hall, John L. Alexander, Stanley D. Samluk
  • Reticulated web making apparatus
    Patent number: 4289464
    Abstract: The invention is a process and apparatus for forming a reticulated web net oriented from a perforated film wherein the perforated film is produced by thermoforming projections or pips on an endless perforated surface and subsequently skiving the pips off flush with the film, said thermoforming, skiving and orientation all taking place in a continuous fashion.
    Type: Grant
    Filed: March 6, 1980
    Date of Patent: September 15, 1981
    Assignee: Hercules Incorporated
    Inventor: John N. Hall
  • Process for producing a reticulated web net
    Patent number: 4226828
    Abstract: The invention is a process for forming a reticulated web net oriented from a perforated film wherein the perforated film is produced by thermoforming projections or pips on an endless perforated surface and subsequently skiving the pips off flush with the film, said thermoforming, skiving and orientation all taking place in a continuous fashion.
    Type: Grant
    Filed: December 20, 1978
    Date of Patent: October 7, 1980
    Assignee: Hercules Incorporated
    Inventor: John N. Hall