Patents by Inventor Donald C. Roe

Donald C. Roe 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: 6063288
    Abstract: A method of controlling the deposition of silica-containing scales and their adhesion to surfaces in contact with an aqueous system is disclosed which comprises adding to the aqueous system an imidazoline or imidazoline derivative.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: May 16, 2000
    Assignee: BetzDearborn Inc.
    Inventor: Donald C. Roe
  • Patent number: 6063159
    Abstract: A stable aqueous solution comprising a water soluble salt of a magnesium compound is used to reduce deposits in kilns or furnaces used to make iron ore agglomerates, known as pellets, during iron ore calcination.
    Type: Grant
    Filed: June 12, 1998
    Date of Patent: May 16, 2000
    Assignee: BetzDearborn Inc.
    Inventor: Donald C. Roe
  • Patent number: 6051142
    Abstract: A method of controlling the deposition of silica-containing scales and their adhesion to surfaces in contact with an aqueous system is disclosed which comprises adding to the aqueous system an ethylene oxide-propylene oxide copolymer.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: April 18, 2000
    Assignee: Betzdearborn Inc.
    Inventor: Donald C. Roe
  • Patent number: 6018093
    Abstract: An absorbent article adapted to receive feces having a first waist region, a second waist region opposed to the first waist region and the second waist region. The absorbent article includes a liquid pervious topsheet, a liquid impervious backsheet joined to at least a portion of the topsheet, an absorbent core disposed between at least a portion of the topsheet and the backsheet and an effective amount of a calcium-bases feces modifying agent disposed in the article such that the feces modifying agent is available to contact at least a portion of the feces.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: January 25, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Nicholas A. Ahr, Konstantin N. Gavrilenko, Dmitry N. Logatchev, Sergey Y. Pavlov, Lev G. Burov, Aleksandra P. Novozhilova
  • Patent number: 6013063
    Abstract: An absorbent article comprising a liquid pervious topsheet, a liquid pervious backsheet joined to at least a portion of the topsheet, an absorbent core disposed between at least a portion of the topsheet and the backsheet, and a waste management element disposed in at least a portion of the crotch region. The waste management element preferably has an Acceptance Under Pressure value of greater than about 0.50 grams of a viscous fluid bodily waste per square inch of the waste management element per milliJoule of energy input. The waste management element preferably also has a Storage Under Pressure value of at least about 0.70 grams of the viscous fluid bodily waste per square inch of the waste management element. The waste management element may also have an Immobilization Under Compressed Inversion value of greater than about 70% of the viscous fluid bodily waste accepted by the waste management element.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: January 11, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Oliver E. C. Mason
  • Patent number: 6010083
    Abstract: A foam generating apparatus and system for generating high quality foam suitable for dust control is disclosed. The apparatus is an eductor that makes use of the energy of a high pressure stream of aqueous foaming solution to draw air into the foaming solution and force it through a foam generator. A dust control foam system is described which employs such air eductors. The described foaming system requires only a single pressurized line to supply foaming solution obviating the need for a compressed air line.
    Type: Grant
    Filed: October 16, 1998
    Date of Patent: January 4, 2000
    Assignee: BetzDearborn Inc.
    Inventors: Donald C. Roe, Ragula Bhaskar, Bradley J. Utzka
  • Patent number: 6010491
    Abstract: An absorbent article comprising a liquid pervious topsheet, a liquid impervious backsheet joined to at least a portion of the topsheet, an absorbent core disposed between at least a portion of the topsheet and the backsheet, and a waste management element disposed in at least a portion of the crotch region. The waste management element preferably has an Acceptance Under Pressure value of greater than about 0.50 grams of a viscous fluid bodily waste per square inch of the waste management element per milliJoule of energy input. The waste management element preferably also has a Storage Under Pressure value of at least about 0.70 grams of the viscous fluid bodily waste per square inch of the waste management element. The waste management element may also have an Immobilization Under Compressed Inversion value of greater than about 70% of the viscous fluid bodily waste accepted by the waste management element.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: January 4, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Oliver E. C. Mason, Aleksey M. Pinyayev
  • Patent number: 5997521
    Abstract: Absorbent articles such as disposable training pants, pull-up diapers, incontinence briefs, diaper holders, feminine hygiene garments, and the like, having extensible side panel features that improve the dynamic fit of the diaper around the legs and waist of the wearer. Such absorbent articles include a containment assembly including a liquid pervious topsheet; a liquid impervious backsheet; an absorbent core disposed between the topsheet and the backsheet; and extensible side panels, each including a waist panel and a thigh panel disposed along each longitudinal edge of the containment assembly in the first waist region. The waist panel and the thigh panel are operatively associated so that the waist panel has a primary direction of extensibility in one direction and the thigh panel has a primary direction of extensibility in a different direction.
    Type: Grant
    Filed: October 3, 1996
    Date of Patent: December 7, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Miguel A. Robles, Carl L. Bergman, Donald C. Roe, Kimberly A. Dreier, Gary D. Lavon, Thomas A. Desmarais
  • Patent number: 5998695
    Abstract: An absorbent article adapted to receive feces having a first waist region, a second waist region opposed to the first waist region, a crotch region disposed between the first waist region and the second waist region. The absorbent article includes a liquid pervious topsheet a liquid impervious backsheet joined to at least a portion of the topsheet, an absorbent core disposed between at least a portion of the topsheet and the backsheet and an effective amount of an ionic complexing feces modifying agent disposed in the article such that the ionic complexing feces modifying agent is available to contact at least a portion of the feces deposited in the article.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: December 7, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Christopher P. Bewick-Sonntag, Nicholas A. Ahr, Steven A. Goldman, Konstantin N. Gavrilenko, Dmitry N. Logatchev, Sergey Y. Pavlov, Lev G. Burov, Aleksandra P. Novozhilova, Brian R. White, John Christison
  • Patent number: 5989236
    Abstract: A disposable absorbent article including a chassis having a body facing surface and a garment facing surface. The disposable absorbent article also includes a fold down waist feature disposed in the rear waist region which extends longitudinally outwardly from the rear waist edge of the core and includes at least one ear flap extending laterally outwardly from one of the longitudinal edges of the core. A fastening system for joining a portion of the front waist region and a portion of the rear waist region is provided. The fastening system preferably includes a first fastening element disposed on the inner surface of the side panel, a second fastening element disposed on the outer surface of the side panel and a third fastening element disposed on the garment facing surface of the chassis in the front waist region.
    Type: Grant
    Filed: March 13, 1998
    Date of Patent: November 23, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Kimberly A. Dreier, Constance Lee Fisher, Carl L. Bergman
  • Patent number: 5977430
    Abstract: An absorbent article comprising a liquid pervious topsheet, a liquid pervious backsheet joined to at least a portion of the topsheet, an absorbent core disposed between at least a portion of the topsheet and the backsheet, and a waste management element disposed in at least a portion of the crotch region. The waste management element preferably includes a macro-particulate structure comprising a multiplicity of particulate having a nominal size of between about 1 mm and about 25.4 mm. The waste management element preferably has an Acceptance Under Pressure value of greater than about 0.50 grams of a viscous fluid bodily waste per square inch of the waste management element per milliJoule of energy input. The waste management element preferably also has a Storage Under Pressure value of at least about 0.70 grams of the viscous fluid bodily waste per square inch of the waste management element.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: November 2, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Oliver E. C. Mason, Aleksey M. Pinyayev
  • Patent number: 5968028
    Abstract: The present invention is directed to an absorbent article having adjustable absorbent assemblies. The absorbent article includes a chassis having a urine collection zone disposed in at least a portion of the front waist region and a feces collection zone disposed in at least a portion of the rear waist region. The chassis includes a first absorbent assembly, at least a portion of which is located in the urine collection zone. The chassis also includes a second absorbent assembly, at least a portion of which is located in the feces collection zone. The chassis further comprises an adjustment member adjustably joining said first absorbent assembly and said second absorbent assembly such that said first absorbent assembly and said second absorbent assembly are moveable relative to each other in at least a direction parallel to said longitudinal centerline.
    Type: Grant
    Filed: September 9, 1997
    Date of Patent: October 19, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Carl L. Bergman
  • Patent number: 5957906
    Abstract: An absorbent article comprising a liquid pervious topsheet, a liquid pervious backsheet joined to at least a portion of the topsheet, an absorbent core disposed between at least a portion of the topsheet and the backsheet, and a waste management element disposed in at least a portion of the crotch region. The waste management element preferably has an Acceptance Under Pressure value of greater than about 0.50 grams of a viscous fluid bodily waste per square inch of the waste management element per milliJoule of energy input. The waste management element preferably also has a Storage Under Pressure value of at least about 0.70 grams of the viscous fluid bodily waste per square inch of the waste management element. The waste management element may also have an Immobilization Under Compressed Inversion value of greater than about 70% of the viscous fluid bodily waste accepted by the waste management element.
    Type: Grant
    Filed: November 14, 1997
    Date of Patent: September 28, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Oliver E. C. Mason, Aleksey M. Pinyayev
  • Patent number: 5947946
    Abstract: A disposable diaper having a first waist region, a second waist region opposed to the first waist region, a crotch region located between the first waist region and the second waist region, a pair of longitudinal edges and a pair of end edges. The disposable diaper further has a topsheet, a backsheet joined with the topsheet, an absorbent core positioned between the topsheet and the backsheet. The diaper includes at least one position retaining element having an initial positioning force and an adjustment force. The position retaining element may be any element included in or joined to the diaper which is bendable and which retains the configuration, orientation, angle, and/or shape of its deformed state until a repositioning force is applied. The position retaining element may be operatively associated with any element(s) of the diaper including the topsheet, backsheet, core, leg cuffs, side panels, waist feature or fastening system.
    Type: Grant
    Filed: June 4, 1997
    Date of Patent: September 7, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Constance L. Fisher, Donald C. Roe, Carl L. Bergman
  • Patent number: 5941864
    Abstract: A disposable absorbent article, such as a diaper. The disposable absorbent article has a first topsheet with apertures large enough for low-viscosity fecal material to pass through to a fecal material storage element. The fecal material storage element immobilizes the fecal material in position for dewatering, so that the liquid components of the fecal material are absorbed by the core and the solid components of the fecal material are separated from the liquid components. This arrangement provides for easier cleaning of the wearer when the soiled disposable absorbent article is removed.
    Type: Grant
    Filed: August 26, 1997
    Date of Patent: August 24, 1999
    Assignee: The Procter & Gamble Company
    Inventor: Donald C. Roe
  • Patent number: 5906603
    Abstract: The present invention provides a disposable absorbent article including a topsheet, a backsheet, and an absorbent core having a pair of opposed longitudinal edges. The absorbent article includes a leg cuff extending at least laterally outwardly from each opposed longitudinal edge. Each leg cuff has a proximal edge, a distal edge and an elasticized region disposed between the proximal edge and the distal edge. The elasticized region has an inner edge, an outer edge and a width. The proximal edge of each leg cuff extends generally longitudinally along and adjacent to at least a portion of one of the opposed longitudinal edges and the distal edge of each of said leg cuffs is disposed laterally outwardly from the proximal edge. Each leg cuff includes an inner bond disposed adjacent at least a portion of the proximal edge of each leg cuff. An outer bond is spaced laterally outwardly from the inner bond, the spacing between the inner bond and said outer bond defining a leg cuff base width.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: May 25, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Kimberly A. Dreier
  • Patent number: 5904673
    Abstract: Absorbent articles such as disposable diapers, incontinent briefs, diaper holders, training pants, feminine hygiene garments and the like, that have a unique waist feature that improves the dynamic fit as well as the containment characteristics of the absorbent article. Such absorbent articles comprise a chassis assembly preferably comprising a liquid pervious topsheet, a liquid impervious backsheet, and an absorbent core positioned between the topsheet and the backsheet; an extensible waist belt; and a closure system for maintaining the absorbent article on the wearer. The extensible waist belt provides an extensible feature that provides a more comfortable and contouring fit by initially conformably fitting the diaper to the wearer and by sustaining this fit. While each extensible waist belt may be constructed from a number of extensible materials, the extensible waist belt preferably comprises a structural elastic-like film web.
    Type: Grant
    Filed: December 3, 1996
    Date of Patent: May 18, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, David J. K. Goulait, Sheila S. Rodriguez, David W. Cabell
  • Patent number: 5899895
    Abstract: Absorbent articles such as disposable training pants, pull-up diapers, incontinence briefs, diaper holders, feminine hygiene garments, and the like, having extensible side panel features that improve the dynamic fit of the diaper around the legs and waist of the wearer. Such absorbent articles include a containment assembly having a liquid pervious topsheet; a liquid impervious backsheet; an absorbent core disposed between the topsheet and the backsheet; and extensible side panels, each including a waist panel and a thigh panel disposed along each longitudinal edge of the containment assembly in the first waist region. The waist panel and the thigh panel are operatively associated so that the waist panel has a primary direction of extensibility in one direction and the thigh panel has a primary direction of extensibility in a different direction.
    Type: Grant
    Filed: September 30, 1996
    Date of Patent: May 4, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Miguel A. Robles, Carl L. Bergman, Donald C. Roe
  • Patent number: 5876391
    Abstract: Absorbent articles such as disposable diapers, incontinent briefs, diaper holders, training pants, feminine hygiene garments and the like, that have a unique waist feature that improves the dynamic fit as well as the containment characteristics of the absorbent article. Such absorbent articles comprise a chassis assembly preferably comprising a liquid pervious topsheet, a liquid impervious backsheet, and an absorbent core positioned between the topsheet and the backsheet; an extensible waist belt; and a closure system for maintaining the absorbent article on the wearer. The extensible waist belt provides an extensible feature that provides a more comfortable and contorting fit by initially conformably fitting the diaper to the wearer and by sustaining this fit. While each extensible waist belt may be constructed from a number of extensible materials, the extensible waist belt preferably comprises a structural elastic-like film web.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: March 2, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, David J. K. Goulait, Sheila S. Rodriguez, David W. Cabell
  • Patent number: 5833881
    Abstract: A stable aqueous solution comprising a water soluble salt of a magnesium compound, a surfactant and a calcium salt inhibitor is used to reduce deposits in kilns or furnaces used to make iron ore agglomerates, known as pellets, during iron ore calcination.
    Type: Grant
    Filed: April 22, 1997
    Date of Patent: November 10, 1998
    Assignee: BetzDearborn Inc.
    Inventor: Donald C. Roe