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).
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Patent number: 8105301Abstract: 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: GrantFiled: April 29, 2002Date of Patent: January 31, 2012Assignee: Buckeye Technologies Inc.Inventors: Samuel Charles Baer, Shiu-Kang Laurence Li, John P. Erspamer, James Richard Gross
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Publication number: 20100137773Abstract: 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: ApplicationFiled: December 11, 2009Publication date: June 3, 2010Inventors: James R. Gross, Brian E. Boehmer, John P. Erspamer, John Perry Baker
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Patent number: 7365034Abstract: 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: GrantFiled: October 7, 2004Date of Patent: April 29, 2008Assignee: BKI Holding CorporationInventors: Brian E. Boehmer, Joshua D. Crews, John P. Erspamer
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Patent number: 7176149Abstract: 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: GrantFiled: May 12, 2003Date of Patent: February 13, 2007Assignee: BKI Holding CorporationInventors: Jacek K. Dutkiewicz, Sanjay Wahal, Ryan K. Hood, John P. Erspamer, Brian E. Boehmer
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Publication number: 20030208175Abstract: 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: ApplicationFiled: January 30, 2001Publication date: November 6, 2003Inventors: James R. Gross, Brian E. Boehmer, John P. Erspamer, John Perry Baker
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Publication number: 20030190852Abstract: 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: ApplicationFiled: May 12, 2003Publication date: October 9, 2003Applicant: BKI HOLDING CORPORATIONInventors: Jacek K. Dutkiewicz, Sanjay Wahal, Ryan K. Hood, John P. Erspamer, Brian E. Boehmer
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Patent number: 6562742Abstract: 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: GrantFiled: December 30, 1999Date of Patent: May 13, 2003Assignee: BKI Holding CorporationInventors: Jacek K. Dutkiewicz, Sanjay Wahal, Ryan K. Hood, John P. Erspamer, Brian E. Boehmer
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Patent number: 6559081Abstract: 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: GrantFiled: May 25, 2000Date of Patent: May 6, 2003Assignee: BKI Holding CorporationInventors: John P. Erspamer, Jeffrey S. Hurley, Brian E. Boehmer, Derrix Betts
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Patent number: 6479415Abstract: 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: GrantFiled: January 19, 1999Date of Patent: November 12, 2002Assignee: BKI Holding CorporationInventors: John P. Erspamer, S. K. Laurence Li, Samuel Charles Baer
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Publication number: 20020165509Abstract: 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: ApplicationFiled: April 29, 2002Publication date: November 7, 2002Applicant: BUCKEYE TECHNOLOGIES, INC.Inventors: Samuel Charles Baer, Shiu-Kang Laurence Li, John P. Erspamer, James Richard Gross
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Patent number: 6420626Abstract: 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: GrantFiled: June 8, 1999Date of Patent: July 16, 2002Assignee: Buckeye Technologies Inc.Inventors: John P. Erspamer, Shiu-Kang Laurence Li, James Richard Gross, Samuel Charles Baer
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Patent number: 6403857Abstract: 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: GrantFiled: December 15, 1998Date of Patent: June 11, 2002Assignee: Buckeye Technologies Inc.Inventors: James R. Gross, Samuel C. Baer, Steve Leptick, John P. Erspamer
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Publication number: 20020013560Abstract: 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: ApplicationFiled: May 11, 2001Publication date: January 31, 2002Applicant: BKI HOLDING CORPORATIONInventors: John P. Erspamer, Brian E. Boehmer, John Perry Baker, David W. Wu
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Patent number: 6241713Abstract: 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: GrantFiled: December 15, 1998Date of Patent: June 5, 2001Assignee: Buckeye Technologies Inc.Inventors: James R. Gross, Samuel C. Baer, Steve Leptick, John P. Erspamer
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Patent number: 6159335Abstract: 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: GrantFiled: February 20, 1998Date of Patent: December 12, 2000Assignee: Buckeye Technologies Inc.Inventors: James William Owens, John P. Erspamer, Charles Edward Bost, John J. Ryan, deceased
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Patent number: 5611890Abstract: 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: GrantFiled: April 7, 1995Date of Patent: March 18, 1997Assignee: The Proctor & Gamble CompanyInventors: Kenneth D. Vinson, John P. Erspamer, Charles W. Neal, Jeffress P. Halter
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Patent number: 5535887Abstract: 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: GrantFiled: June 2, 1995Date of Patent: July 16, 1996Assignee: The Procter & Gamble CompanyInventors: Mark D. Young, John P. Erspamer, Mark E. Forry, Charles J. Berg, Jr.
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Patent number: 5507130Abstract: 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: GrantFiled: June 2, 1995Date of Patent: April 16, 1996Assignee: The Procter & Gamble CompanyInventors: Mark D. Young, John P. Erspamer, Mark E. Forry, Charles J. Berg, Jr.
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Patent number: 5228954Abstract: 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: GrantFiled: May 28, 1991Date of Patent: July 20, 1993Assignee: The Procter & Gamble Cellulose CompanyInventors: Kenneth D. Vinson, John P. Erspamer