Patents by Inventor Ray E. Dahlgren

Ray E. Dahlgren 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).

  • Patent number: 6341505
    Abstract: An improved sock wherein moisture distribution, wicking, evaporation and other phases of control are all managed by the sock construction. The moisture management sock has a toe portion knit of predominantly of hydrophilic yarn; a heel portion knit of predominantly of hydrophilic yarn; and alternating rings of hydrophobic and hydrophilic yarn located between said toe portion and said heel portion. Moisture absorbed from the wearer's foot by the hydrophilic yarn is transferred by wicking action into the hydrophobic rings and then to the leg portion to be evaporated therefrom.
    Type: Grant
    Filed: April 7, 2000
    Date of Patent: January 29, 2002
    Inventor: Ray E. Dahlgren
  • Patent number: 6082146
    Abstract: An improved sock wherein moisture distribution, wicking, evaporation and other phases of control are all managed by the sock construction. The moisture management sock has a toe portion knit of predominantly of hydrophilic yarn; a heel portion knit of predominantly of hydrophilic yarn; and alternating rings of hydrophobic and hydrophilic yarn located between said toe portion and said heel portion. Moisture absorbed from the wearer's foot by the hydrophilic yarn is transferred by wicking action into the hydrophobic rings and then to the leg portion to be evaporated therefrom.
    Type: Grant
    Filed: July 1, 1999
    Date of Patent: July 4, 2000
    Inventor: Ray E. Dahlgren
  • Patent number: 5511323
    Abstract: Footwear is provided for added comfort to the wearer by facilitating the removal and dissipation of perspiration from the foot of the wearer. The footwear has a knitted sock and a shoe in combination. The knitted sock has a toe portion formed of hydrophilic knit fabric and an instep portion adjacent the toe portion formed of hydrophobic knit fabric. Perspiration from the toe portion of the foot of the wearer is absorbed by the knit hydrophilic toe portion of the knitted sock and wicked therefrom by the hydrophobic knit instep portion of the knitted sock. The shoe has a tongue portion overlying and contacting the hydrophobic knit instep portion of the knitted sock. The tongue portion of the shoe has overlying inner and outer fabric layers formed of hydrophilic fabric and an intermediate fabric layer positioned between the overlying inner and outer hydrophilic fabric layers.
    Type: Grant
    Filed: November 7, 1994
    Date of Patent: April 30, 1996
    Inventor: Ray E. Dahlgren
  • Patent number: 4898007
    Abstract: An improved sock wherein moisture distribution, wicking, evaporation and other phases of control, as well as stretch and cushioning, are all managed by the sock construction. The toe and heel portions are knit predominately, or entirely, of hydrophilic yarn while the instep portion extending therebetween is knit of hydrophobic yarn so that moisture absorbed from the wearer'foot by the hydrophilic yarn in the toe and heel portions is transferred by wicking action into the hydrophobic yarn in the instep portion to be evaporated therefrom.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: February 6, 1990
    Inventor: Ray E. Dahlgren