Patents by Inventor John P. Erspamer

John P. Erspamer 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: 8105301
    Abstract: Disclosed is a unitary absorbent structure including a fluid acquisition stratum; a fluid distribution stratum; and a fluid storage stratum between the acquisition stratum and the distribution stratum. Each of the acquisition, distribution, and storage strata are in fluid communication with each other.
    Type: Grant
    Filed: April 29, 2002
    Date of Patent: January 31, 2012
    Assignee: Buckeye Technologies Inc.
    Inventors: Samuel Charles Baer, Shiu-Kang Laurence Li, John P. Erspamer, James Richard Gross
  • Publication number: 20100137773
    Abstract: The present invention relates to an absorbent core for use in an absorbent article and methods to make the absorbent core and absorbent articles. The absorbent core has a discrete wicking layer made with compressible fibers such as a eucalyptus or chemically treated fibers. The absorbent core and articles made with it have improved vertical wicking capacity and superior rewet characteristics.
    Type: Application
    Filed: December 11, 2009
    Publication date: June 3, 2010
    Inventors: James R. Gross, Brian E. Boehmer, John P. Erspamer, John Perry Baker
  • Patent number: 7365034
    Abstract: The present invention is directed to nonwoven materials containing a chemical composition capable of generating carbon dioxide when activated. The present invention provides a latent carbon dioxide gas generating material having a first layer containing fiber and a binder, having a basis weight of from about 25 gsm to about 100 gsm and having inner and outer surfaces, a second layer containing a carbon dioxide gas generating composition, having a basis weight of from about 5 gsm to about 300 gsm and having upper and lower surfaces, and a third layer containing fiber and a binder, having a basis weight of from about 25 gsm to about 100 gsm and having inner and outer surfaces. The inner surface of the first layer is in contact with the upper surface of the second layer, and the inner surface of the third layer is in contact with the lower surface of the second layer.
    Type: Grant
    Filed: October 7, 2004
    Date of Patent: April 29, 2008
    Assignee: BKI Holding Corporation
    Inventors: Brian E. Boehmer, Joshua D. Crews, John P. Erspamer
  • Patent number: 7176149
    Abstract: Disclosed is an absorbent structure having wet integrity greater than about 4.0 mN/gsm, softness greater than 8.0/J, pliability greater than about 70/N, and providing a substantially dry liquid-accepting surface after receiving a quantity of liquid. The structure includes an upper ply having an upper fluid receiving surface and a lower surface and including (i) a top stratum including synthetic matrix fibers bonded with a binder, the matrix fibers having length from about 2 to about 15 mm; (ii) a middle stratum in fluid communication with the top stratum, the middle stratum including natural fibers, superabsorbent particles and a binder; and (iii) a bottom stratum in fluid communication with the middle stratum, the bottom stratum including natural fibers and a binder.
    Type: Grant
    Filed: May 12, 2003
    Date of Patent: February 13, 2007
    Assignee: BKI Holding Corporation
    Inventors: Jacek K. Dutkiewicz, Sanjay Wahal, Ryan K. Hood, John P. Erspamer, Brian E. Boehmer
  • Publication number: 20030208175
    Abstract: The present invention relates to an absorbent core for use in an absorbent article and methods to make the absorbent core and absorbent articles. The absorbent core has a discrete wicking layer made with compressible fibers such as eucalyptus or chemically treated fibers. The absorbent core and articles made with it have improved vertical wicking capacity and superior rewet characteristics.
    Type: Application
    Filed: January 30, 2001
    Publication date: November 6, 2003
    Inventors: James R. Gross, Brian E. Boehmer, John P. Erspamer, John Perry Baker
  • Publication number: 20030190852
    Abstract: Disclosed is an absorbent structure having wet integrity higher than about 4.0 kN/gsm, softness higher than 8.0/J, pliability higher than about 70/N, and providing a substantially dry liquid-accepting surface after receiving a quantity of liquid. The structure includes an upper ply having an upper fluid receiving surface and a lower surface and including (i) a top stratum including synthetic matrix fibers bonded with a binder, the matrix fibers having length from about 2 to about 15 mm; (ii) a middle stratum in fluid communication with the top stratum, the middle stratum including natural fibers, superabsorbent particles and a binder; and (iii) a bottom stratum in fluid communication with the middle stratum, the bottom stratum including natural fibers and a binder.
    Type: Application
    Filed: May 12, 2003
    Publication date: October 9, 2003
    Applicant: BKI HOLDING CORPORATION
    Inventors: Jacek K. Dutkiewicz, Sanjay Wahal, Ryan K. Hood, John P. Erspamer, Brian E. Boehmer
  • Patent number: 6562742
    Abstract: Disclosed is an absorbent structure having wet integrity higher than about 4.0 kN/gsm, softness higher than 8.0/J, pliability higher than about 70/N, and providing a substantially dry liquid-accepting surface after receiving a quantity of liquid. The structure includes an upper ply having an upper fluid receiving surface and a lower surface and including (i) a top stratum including synthetic matrix fibers bonded with a binder, the matrix fibers having length from about 2 to about 15 mm; (ii) a middle stratum in fluid communication with the top stratum, the middle stratum including natural fibers, superabsorbent particles and a binder; and (iii) a bottom stratum in fluid communication with the middle stratum, the bottom stratum including natural fibers and a binder.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: May 13, 2003
    Assignee: BKI Holding Corporation
    Inventors: Jacek K. Dutkiewicz, Sanjay Wahal, Ryan K. Hood, John P. Erspamer, Brian E. Boehmer
  • Patent number: 6559081
    Abstract: This invention relates to fibrous absorbent articles containing particles useful in the manufacture of disposable diapers, adult incontinence pads, sanitary napkins and the like, scrubbing pads, scouring pads and cleaning pads that contain a detergent or soap and the like, and pads that contain coffee, tea, and the like More particularly, the invention is directed to an absorbent articles having sealed lateral edges to contain loose fibers and particles within the structure. Additionally, this invention is related to airlaid methods to manufacture unitary absorbent products.
    Type: Grant
    Filed: May 25, 2000
    Date of Patent: May 6, 2003
    Assignee: BKI Holding Corporation
    Inventors: John P. Erspamer, Jeffrey S. Hurley, Brian E. Boehmer, Derrix Betts
  • Patent number: 6479415
    Abstract: Disclosed is an absorbent structure including a liquid acquisition layer and a fibrous liquid storage layer in liquid communication with the acquisition layer. The storage layer includes SAP particles. The acquisition layer includes synthetic fibers and the fibers are latex bonded. A fluid acquisition and/or distribution layer (ADL) containing at least two layers, a top layer of latex bonded synthetic fibers and a bottom layer of latex and/or thermal bonded cellulose fibers and method for preparation thereof are disclosed. The synthetic fiber layer is highly porous and provides rapid fluid acquisition under load. The cellulose layer provides z-direction capillary force to pull fluid into the absorbent product, to provide temporary fluid immobilization, and to act as a conduit for fluid to be pulled into unsaturated portion of the permanent fluid storage layer. The ADL of the invention provides increased protection against leakage relative to single-layer ADLS.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: November 12, 2002
    Assignee: BKI Holding Corporation
    Inventors: John P. Erspamer, S. K. Laurence Li, Samuel Charles Baer
  • Publication number: 20020165509
    Abstract: Disclosed is a unitary absorbent structure including a fluid acquisition stratum; a fluid distribution stratum; and a fluid storage stratum between the acquisition stratum and the distribution stratum. Each of the acquisition, distribution, and storage strata are in fluid communication with each other.
    Type: Application
    Filed: April 29, 2002
    Publication date: November 7, 2002
    Applicant: BUCKEYE TECHNOLOGIES, INC.
    Inventors: Samuel Charles Baer, Shiu-Kang Laurence Li, John P. Erspamer, James Richard Gross
  • Patent number: 6420626
    Abstract: Disclosed is a unitary absorbent structure including a fluid acquisition stratum; a fluid distribution stratum; and a fluid storage stratum between the acquisition stratum and the distribution stratum. Each of the acquisition, distribution, and storage strata are in fluid communication with each other.
    Type: Grant
    Filed: June 8, 1999
    Date of Patent: July 16, 2002
    Assignee: Buckeye Technologies Inc.
    Inventors: John P. Erspamer, Shiu-Kang Laurence Li, James Richard Gross, Samuel Charles Baer
  • Patent number: 6403857
    Abstract: A discrete superabsorbent layer is adhered to the lower surface of a fibrous absorbent structure using a water-based polymeric binder is disclosed. The advantages are that a superabsorbent roll good can be prepared for later conversion into disposable absorbent products. The use of the water-based polymeric binder prevents particles of superabsorbent from becoming dislodged from the structure during handling and processing.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: June 11, 2002
    Assignee: Buckeye Technologies Inc.
    Inventors: James R. Gross, Samuel C. Baer, Steve Leptick, John P. Erspamer
  • Publication number: 20020013560
    Abstract: Disclosed is a unitary absorbent core having a basis weight of about 75 grams per square meter or greater, including a fibrous absorbent layer having an upper fluid receiving surface and a lower surface with a hydrophobic vapor-transmissive moisture barrier integral with the lower surface of the absorbent layer. Also disclosed is a process for the production of the unitary absorbent core, including the steps of (a) producing a fibrous absorbent layer having upper and lower surfaces, and (b) applying to the lower surface of the fibrous absorbent layer a hydrophobic material which at least partially coats at least some of the fibers of the lower surface of the absorbent layer.
    Type: Application
    Filed: May 11, 2001
    Publication date: January 31, 2002
    Applicant: BKI HOLDING CORPORATION
    Inventors: John P. Erspamer, Brian E. Boehmer, John Perry Baker, David W. Wu
  • Patent number: 6241713
    Abstract: An absorbent sheeted material containing a layer of a foamed hydrogel-forming polymer having superabsorbent properties coated on the surface of a sheeted fibrous absorbent material suitable for use in disposable absorbent products and methods of making thereof are disclosed.
    Type: Grant
    Filed: December 15, 1998
    Date of Patent: June 5, 2001
    Assignee: Buckeye Technologies Inc.
    Inventors: James R. Gross, Samuel C. Baer, Steve Leptick, John P. Erspamer
  • Patent number: 6159335
    Abstract: A method of reducing the amount of energy required to disintegrate comminution sheets formed from cellulose fibers without adversely affecting the absorbency, strength, or fluid transport properties of airfelts formed from the comminuted treated fibers. The method of the present invention includes the steps of preparing an aqueous slurry of cellulose fibers, adding an effective amount of a debonding agent such as aluminum or Kaolin clay to the cellulose slurry, and forming a comminution sheet from the fibers treated with the debonding agent. The debonding agent is added to the cellulose slurry in an amount effective to reduce the energy required to disintegrate comminution sheets formed from the fibers in the slurry by up to 50% of the amount of energy required to disintegrate comminution sheets formed from untreated pulp.
    Type: Grant
    Filed: February 20, 1998
    Date of Patent: December 12, 2000
    Assignee: Buckeye Technologies Inc.
    Inventors: James William Owens, John P. Erspamer, Charles Edward Bost, John J. Ryan, deceased
  • Patent number: 5611890
    Abstract: Strong, soft, and low dusting tissue paper webs useful in the manufacture of soft, absorbent sanitary products such as bath tissue, facial tissue, and absorbent towels are disclosed. The tissue papers comprise fibers such as wood pulp and a non-cellulosic, water insoluble particulate filler such as kaolin clay.
    Type: Grant
    Filed: April 7, 1995
    Date of Patent: March 18, 1997
    Assignee: The Proctor & Gamble Company
    Inventors: Kenneth D. Vinson, John P. Erspamer, Charles W. Neal, Jeffress P. Halter
  • Patent number: 5535887
    Abstract: A tissue package comprising a plurality of tissues and a dispensing package. The plurality of tissues is compressed in two discrete stages, each of which stage can be released independently from the other. The first stage of compression is less than the second stage of compression. The tissues are transported and stored while under the second stage of compression. The user releases the second stage of compression, whereby the tissues can expand up to the first stage of compression. The user releases the first stage of compression just before installing the plurality of tissues into a dispensing package or dispenses the tissues through a restraint while they are held in the first stage compression.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: July 16, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Mark D. Young, John P. Erspamer, Mark E. Forry, Charles J. Berg, Jr.
  • Patent number: 5507130
    Abstract: A tissue package comprising a plurality of tissues and a dispensing package. The plurality of tissues is compressed in two discrete stages, each of which stage can be released independently from the other. The first stage of compression is less than the second stage of compression. The tissues are transported and stored while under the second stage of compression. The user releases the second stage of compression, whereby the tissues can expand up to the first stage of compression. The user releases the first stage of compression just before installing the plurality of tissues into a dispensing package or dispenses the tissues through a restraint while they are held in the first stage compression.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: April 16, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Mark D. Young, John P. Erspamer, Mark E. Forry, Charles J. Berg, Jr.
  • Patent number: 5228954
    Abstract: Cellulose pulp compositions of selected fiber morphology are disclosed. Of particular interest, are morphological forms of wood fibers with the potential to achieve improved paper strength without suffering the penalty of slow drainage rate. These cellulose pulps are especially useful for efficiently producing paper structures such as tissue paper of requisite strength.
    Type: Grant
    Filed: May 28, 1991
    Date of Patent: July 20, 1993
    Assignee: The Procter & Gamble Cellulose Company
    Inventors: Kenneth D. Vinson, John P. Erspamer