Patents by Inventor John Billings Burchnall

John Billings Burchnall 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: 6683041
    Abstract: Disclosed are disposable cleansing articles (1) which comprise a multi-phase, multi-component emulsion (5) and an activation web (2) that facilitates activation of the emulsion during use. In a preferred embodiment, the multi-phase emulsion is a high internal phase inverse emulsion having a continuous external lipid phase and a discontinuous internal polar phase. During use, the activation web facilitates breakage of the emulsion's external phase, thereby releasing the internal phase for its desired use. Because the internal liquid phase may account for up to about 97% of the emulsion, significant levels of fluid (e.g., water or a polar liquid) may be delivered from a “dry” wipe.
    Type: Grant
    Filed: July 26, 2000
    Date of Patent: January 27, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Nicholas James Nissing, John Billings Burchnall
  • Patent number: 6048489
    Abstract: An absorbent core for use in an absorbent article for absorbing discharged bodily fluid comprises a first absorbent material dispersed throughout the core, and a second absorbent material provided in a discrete strip, and substantially surrounded by the first absorbent material. An apparatus and method for producing such cores comprises a mold support advanceable in a predetermined direction and having at least one mold therein, and a tubular conduit for the second material alignably positioned such that a portion of the conduit will pass through at least a portion of the mold as the mold support is advanced. The mold support may comprise a forming drum or a forming belt. The tubular conduit has a distal end through which the second absorbent material may be expelled.
    Type: Grant
    Filed: January 29, 1999
    Date of Patent: April 11, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Godfrey Reiter, John Billings Burchnall
  • Patent number: 5866173
    Abstract: An absorbent core for use in an absorbent article for absorbing discharged bodily fluid includes a first absorbent material dispersed throughout the core, and a second absorbent material provided in a discrete strip, and substantially surrounded by the first absorbent material. An apparatus and method for producing such cores includes a mold support advanceable in a predetermined direction and having at least one mold therein, and a tubular conduit for the second material alignably positioned such that a portion of the conduit will pass through at least a portion of the mold as the mold support is advanced. The mold support may include a forming drum or a forming belt. The tubular conduit has a distal end through which the second absorbent material may be expelled.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: February 2, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Godfrey Reiter, John Billings Burchnall
  • Patent number: 5769834
    Abstract: An absorbent article useful for absorbing bodily fluids discharged by the wearer of the article is provided. The absorbent article comprises a fluid pervious topsheet, a fluid impervious backsheet affixed to the topsheet, an absorbent core disposed between the topsheet and the backsheet, and a resilient tubular member disposed between the topsheet and the backsheet for transporting the fluids to a predetermined region of the core. The tubular member has a plurality of fluid inlets and a plurality of fluid outlets, the inlets and outlets providing fluid communication between the interior and exterior of the tubular member. Discharged fluids may be transported from regions adjacent the inlets into the interior of the tubular member, and thereafter through the outlets to the predetermined regions of the core adjacent the outlets, thereby rapidly transporting the fluids to the predetermined region of the core.
    Type: Grant
    Filed: November 18, 1996
    Date of Patent: June 23, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Godfrey Reiter, John Billings Burchnall