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: 5716351
    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: July 25, 1996
    Date of Patent: February 10, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Carl L. Bergman
  • Patent number: 5668219
    Abstract: A process for the percolation leaching of minerals from a mineral-beating ore comprises agglomerating the mineral-bearing ore with an agglomerating agent of a cationic block copolymer having a polymeric segment and a block containing an ammonium cation optionally with a block derived from an acrylamide monomer, forming the ore/agglomerating agent mixture into a heap, and leaching the heap by percolation with a leaching solution for subsequent recovery of the minerals at an acidic pH.
    Type: Grant
    Filed: March 22, 1996
    Date of Patent: September 16, 1997
    Assignee: BetzDearborn Inc.
    Inventors: David M. Polizzotti, Wen P. Liao, Donald C. Roe
  • Patent number: 5656062
    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: May 31, 1995
    Date of Patent: August 12, 1997
    Assignee: BetzDearborn Inc.
    Inventor: Donald C. Roe
  • Patent number: 5648116
    Abstract: Methods for suppressing the dissemination of dust emissions from dust producing materials are disclosed. Fugitive dust emissions are suppressed by applying aqueous solutions of a copolymer of tannin and a cationic monomer to the dust producing materials.
    Type: Grant
    Filed: January 17, 1996
    Date of Patent: July 15, 1997
    Assignee: BetzDearborn Inc.
    Inventors: Donald C. Roe, Jen-Chi Chen
  • Patent number: 5639397
    Abstract: A method for suppressing the dissemination of fugitive dust particles into the atmosphere by using an aqueous solution of a water soluble graft copolymer of the general structure: ##STR1## wherein E is the repeat unit obtained after polymerization of an .alpha., .beta. ethylenically unsaturated compound, the molar percentage of a:b is from about 95:5 to 5:95, with the proviso that the sum of a and b equals 100%; G comprises the structure: ##STR2## wherein d, R.sub.1, R.sub.2 and R.sub.3 are the same or different and are hydrogen or a lower alkyl group having C.sub.1 to C.sub.3, F is a salt of an ammonium cation and the molar percentage of c:d is from 95:5 to 5:95 with the proviso that the sum of c and d equals 100%; or an aqueous solution of a water soluble block copolymer of the general structure: ##STR3## wherein J is a polymeric segment obtained from the polymerization of ethylenically unsaturated hydrophobic monomers initiated by a difunctional initiator; R.sub.4 and R.sub.5 are H or a C.sub.1 to C.sub.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: June 17, 1997
    Assignee: BetzDearborn Inc.
    Inventor: Donald C. Roe
  • Patent number: 5635191
    Abstract: A diaper containing a liquid pervious topsheet coated with a lotion composition is disclosed. The lotion composition reduces the adherence of BM to the skin of the wearer, thereby improving the ease of BM clean up. The lotion composition comprises a plastic or fluid polysiloxane emollient such as phenyl-functional polymethylsiloxanes, an immobilizing agent such as a fatty alcohol or paraffin wax to immobilize the emollient on the surface of the diaper topsheet, and optionally a hydrophilic surfactant to improve wettability of the coated topsheet. Because the polysiloxane emollient is substantially immobilized on the surface of the topsheet, less lotion is required to impart the desired therapeutic or protective lotion coating benefits.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: June 3, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Larry N. Mackey
  • Patent number: 5624427
    Abstract: The present invention provides a refastenable fastening device including female fastening component preferably comprising a base web and an engaging layer. The base web comprises a structural elastic-like film (SELF) web and is joined to the engaging layer which comprises a plurality of filaments or a nonwoven web. The SELF web exhibits an elastic-like behavior in the direction of elongation without the use of added elastic materials. The SELF web includes a strainable network having at least two distinct regions comprised of the same material composition. The first region is oriented substantially parallel to an axis of elongation such that it will undergo a molecular-level deformation in response to an applied axial elongation in a direction substantially parallel to the elongation axis before a substantial portion of the second region undergoes any substantial molecular-level deformation.
    Type: Grant
    Filed: January 18, 1995
    Date of Patent: April 29, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Carl L. Bergman, Kimberly A. Dreier, Miguel A. Robles, Donald C. Roe, Mark J. Kline, Margaret H. Hasse
  • Patent number: 5624676
    Abstract: A lotion composition for imparting a soft, lubricious, lotion-like feel when applied to tissue paper in amounts as low as from about 0.1 to about 15% by weight, and tissue paper treated with such lotion compositions are disclosed. The lotion composition comprises plastic or fluid emollient such as petrolatum, or a mixture of petrolatum with alkyl ethoxylate emollient, a solid polyol polyester immobilizing agent to immobilize the emollient on the surface of the tissue paper web and optionally a hydrophilic surfactant to improve wettability when applied to toilet tissue. Because less lotion is required to impart the desired soft, lotion-like feel benefits, detrimental effects on the tensile strength and caliper of the lotioned paper are minimized or avoided.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: April 29, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Larry N. Mackey, Donald C. Roe
  • Patent number: 5624426
    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: May 3, 1996
    Date of Patent: April 29, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Kimberly A. Dreier
  • Patent number: 5609587
    Abstract: A diaper containing a liquid pervious topsheet coated with a lotion composition is disclosed. The lotion composition reduces the adherence of BM to the skin of the wearer, thereby improving the ease of BM clean up, and improves skin softness. The lotion composition comprises a liquid polyol polyester and an immobilizing agent such as a fatty alcohol or paraffin wax to immobilize the liquid polyol polyester on the surface of the diaper topsheet. The polyol polyester(s) remains at or near the skin surface, providing the desired BM cleaning and/or therapeutic benefits.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: March 11, 1997
    Assignee: The Procter & Gamble Company
    Inventor: Donald C. Roe
  • Patent number: 5607760
    Abstract: A diaper containing a liquid pervious topsheet coated with a lotion composition is disclosed. The lotion composition reduces the adherence of BM to the skin of the wearer, thereby improving the ease of BM clean up, and improves skin softness. The lotion composition comprises a solid polyol polyester and an emollient to improve the lubricity of the solid polyol polyester. The polyol polyester(s) and emollient remains at or near the skin surface, providing the desired BM cleaning or therapeutic benefits.
    Type: Grant
    Filed: August 3, 1995
    Date of Patent: March 4, 1997
    Assignee: The Procter & Gamble Company
    Inventor: Donald C. Roe
  • Patent number: 5601543
    Abstract: A disposable diaper having a waist pocket cuff is disclosed. The pocket cuff has first and second portions separable along a predetermined line of weakness. The predetermined line of weakness can comprise a line of spaced apart perforations.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: February 11, 1997
    Assignee: The Proctor & Gamble Company
    Inventors: Kimberly A. Dreier, Donald C. Roe
  • Patent number: 5582604
    Abstract: A diaper having an inflatable component and a pump is disclosed. The pump has a pump chamber having an inlet port and an outlet port, and a resilient chamber wall. The resilient chamber wall is deformable to displace air from the pump chamber to the inflatable component. A check valve provides unidirectional flow from the pump to the inflatable component.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: December 10, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Nicholas A. Ahr, Donald C. Roe
  • Patent number: 5576056
    Abstract: Compositions and a method for inhibiting coal oxidation. Coal oxidation is inhibited by applying an aqueous solution of cationic polymer to coal surfaces which are exposed to air. The compositions are preferably applied to coal as foams.
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: November 19, 1996
    Assignee: BetzDearborn Inc.
    Inventor: Donald C. Roe
  • Patent number: 5575784
    Abstract: A disposable garment having an improved disposal means so as to provide convenient disposal of the disposable garment. The disposable garment includes a chassis having a front portion, a rear portion, and a crotch portion positioned between the front portion and the rear portion. Seams join the front and rear portions together to form two leg openings and a waist opening. The improved disposal means is preferably joined to the outer layer of the disposable garment and includes a frangible section to provide for separation of the disposal means into independent portions.
    Type: Grant
    Filed: November 2, 1995
    Date of Patent: November 19, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Kathleen Q. Ames-Ooten, Donald C. Roe
  • Patent number: 5569232
    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 back waist future; and a closure system for maintaining the absorbent article on the wearer. The extensible back waist feature provides an extensible future that provides a more comfortable and contouring fit by initially conformably fitting the diaper to the wearer and by sustaining this fit. The extensible back waist feature has a hip panel, a central waistband panel, and a pair of side panels. The force/extension characteristics of each panel is designed to provide such improved fit and containment.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: October 29, 1996
    Assignee: The Procter and Gamble Company
    Inventors: Donald C. Roe, David J. K. Goulait, Sheila S. Rodriguez, Edward P. Carlin, Kimberly A. Dreier, Carolyn M. Jasper, Dean J. Daniels
  • Patent number: 5558661
    Abstract: A disposable diaper having a waist pocket cuff is disclosed. The pocket cuff has first and second portions separable along a releasable seam. The releasable seam can be formed by overlapping portions of the first and second portions of the pocket cuff. In one embodiment the releasable seam includes a mechanical fastener for securing together the first and second portions of the pocket cuff. In another embodiment the releasable seam comprises an adhesive fastener.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: September 24, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Kimberly A. Dreier
  • Patent number: 5556394
    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 back waist feature; and a closure system for maintaining the absorbent article on the wearer. The extensible back waist feature 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. The extensible back waist feature has a hip panel, a central waistband panel, and a pair of side panels. The force/extension characteristics of each panel is designed to provide such improved fit and containment.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: September 17, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, David J. K. Goulait, Sheila S. Rodriguez, Edward P. Carlin, Kimberly A. Dreier, Carolyn M. Jasper, Dean J. Daniels
  • Patent number: 5554143
    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 back waist feature; and a closure system for maintaining the absorbent article on the wearer. The extensible back waist feature 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. The extensible back waist feature has a hip panel, a central waistband panel, and a pair of side panels. The force/extension characteristics of each panel is designed to provide such improved fit and containment.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: September 10, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, David J. K. Goulait, Sheila S. Rodriguez, Edward P. Carlin, Kimberly A. Dreier, Carolyn M. Jasper, Dean J. Daniels
  • Patent number: H1630
    Abstract: A disposable absorbent article such as a diaper. The diaper has dual upstanding inner and outer barrier leg cuffs, and preferably gasket cuffs. The inner barrier leg cuffs are liquid pervious, while the outer barrier leg cuffs are liquid impermeable. The inner barrier leg cuffs are preferably spaced apart from one another sufficient to allow urine and fecal material to be deposited therebetween. Each outer barrier leg cuff is preferably spaced properly from the inner barrier leg cuff so as to allow the leg cuffs to function independently, yet maintain a proper target area for the deposition of urine and fecal material.
    Type: Grant
    Filed: March 1, 1995
    Date of Patent: January 7, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Donald C. Roe, Kimberly A. Dreier