Patents by Inventor Richard E. Hansen

Richard E. Hansen 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: 4865855
    Abstract: There is disclosed an absorbent food pad which absorbs exudate from food products in a package and inhibits the propagation of food-borne pathogens. The absorbent food pad contains an effective amount of an antimicrobial composition of one or more acids having the structure:R--COOHwhere R is selected from the group consisting of lower alkyl; substituted lower alkyl; carboxy lower alkyl; carboxy, hydroxy lower alkyl; carboxy, halo lower alkyl; carboxy, dihydroxy lower alkyl, dicarboxy, hydroxy lower alkyl; lower alkenyl; carboxy lower alkenyl; dicarboxyl lower alkenyl; phenyl and substituted phenyl groups. In addition, the antimicrobial composition may include an anionic surfactant. More particularlly, the antimicrobial composition comprises a mixture of citric acid, malic acid, and sodium lauryl sulfate in a rate ratio of 10:5:2 by weight respectively. The antimicrobial composition is disbursed within the absorbent medium of the absorbent food pad at a concentration of between 0.04% and 0.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: September 12, 1989
    Assignee: Kimberly-Clark Corporation
    Inventors: Richard E. Hansen, Carl G. Rippl, David G. Midkiff, Joseph G. Neuwirth
  • Patent number: 4726442
    Abstract: A vehicle steering system includes a single handgrip mounted adjacent the driver's seat for pivotal displacement in a laterally extending plane. Interconnection structure provides a motion transmitting train between the handgrip and suitable power-assisted steering components in the engine compartment to regulate steering of a vehicle's wheels as the handgrip is laterally pivoted. The interconnection structure may include a plurality of serially-connected rotatable shafts, power-steering fluid control valves directly actuated by the handgrip or electrical switches controlled directly by the handgrip to regulate power-steering fluid valves disposed in the engine compartment.
    Type: Grant
    Filed: August 29, 1986
    Date of Patent: February 23, 1988
    Inventor: Richard E. Hansen
  • Patent number: D436314
    Type: Grant
    Filed: March 4, 1999
    Date of Patent: January 16, 2001
    Inventor: Richard E. Hansen