Patents by Inventor Jayshree Seth
Jayshree Seth 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: 7235202Abstract: The present invention concerns an extrusion formed reticulated web, mesh or netting including reticulated hook fasteners for use with hook and loop fasteners the polymer netting comprising two sets of strands at angles to each other. The first set of strands are a plurality of oriented (molecular orientation created by stretching) strands extending in a first direction and are generally mutually parallel and linear. The second set of strands are a plurality of substantially parallel strands attached only to a first face of the first set of oriented strands. The first set of oriented strands occupy a first planar cross-sectional area in the thickness direction of the formed netting. Said second set of oriented strands occupy a second planar cross-sectional area in the thickness direction of the formed netting. Preferably, these first and second planar cross-sectional areas are substantially mutually exclusive and are abutting.Type: GrantFiled: November 12, 2003Date of Patent: June 26, 2007Assignee: 3M Innovative Properties CompanyInventors: Jayshree Seth, Ronald W. Ausen, Janet A. Venne, Katherine A. S. Graham
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Publication number: 20070110953Abstract: The present invention is directed at a hook strand. These hook strands have a base layer with first top face and a second bottom face and two side faces. Hook elements on the strand extend from at least one face and the hook elements have engaging arms that extend at an angle of from 1 to 90 degrees relative to the longitudinal extent of the strands.Type: ApplicationFiled: January 16, 2007Publication date: May 17, 2007Inventors: Ronald Ausen, Jayshree Seth
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Publication number: 20070089279Abstract: The present invention concerns breathable fasteners for use with hook fastener systems. The breathable fastening system comprises a first breathable mechanical fastener surface, which is generally a loop or fibrous type surface that can optionally be joined to a breathable backing loop, and a recon large area breathable hook type fastener. The hook type fastener generally has an integral film backing which film backing has a porosity of from 0.0001 to 0.005 cm3, a backing thickness of from 25 to 200 ?m, a stiffness of from 10 to 2000 Gurley units and a hook or projection containing surface area of at least 10 cm2.Type: ApplicationFiled: December 18, 2006Publication date: April 26, 2007Inventors: Jayshree Seth, Ronald Ausen, James Mrozinski, Janet Venne
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Patent number: 7192896Abstract: The invention is directed at a disposable dry cleansing article that is formed from a melt extruded fibrous web that has incorporated into the fibers forming the web from 0.5 to 20 percent by weight of a melt extruded lathering surfactant. The invention, dry article generally comprises a melt extruded fibrous web of a thermoplastic polymer having a basis weight of from about 10 to 200 g/m2, preferably 10 to 150 g/m2 wherein the fibers have a lathering surfactant incorporated into the fiber at a level that allows the article to be used two (2) or more times with a rinse foam volume of 15 or more, with an initial foam volume of at least 50 ml.Type: GrantFiled: November 15, 2001Date of Patent: March 20, 2007Assignee: 3M Innovative Properties CompanyInventors: Jayshree Seth, Jerry W. Hall
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Patent number: 7185401Abstract: A method for forming a unitary polymeric projection or fastener comprising a thin, strong flexible backing, and a multiplicity of thin spaced hook members projecting from the upper surface of the unitary backing the method generally including extruding a thermoplastic resin through a die plate which die plate is shaped to form a base layer and spaced ridges, ribs or hook elements projecting above a surface of the base layer. When the die forms the spaced ridges or ribs the cross sectional shape of the hook members are formed by the die plate while the initial hook member thickness is formed by transversely cutting the ridges at spaced locations along their lengths to form discrete cut portions of the ridges. Subsequently longitudinal stretching of the backing layer (in the direction of the ridges on the machine direction) separates these cut portions of the ridges, which cut portion then form spaced apart hook members.Type: GrantFiled: December 20, 2004Date of Patent: March 6, 2007Assignee: 3M Innovative Properties CompanyInventors: Ronald W. Ausen, William C. Unruh, Philip Miller, Jayshree Seth
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Patent number: 7182992Abstract: The present invention is directed at a hook strand. These hook strands have a base layer with first top face and a second bottom face and two side faces. Hook elements on the strand extend from at least one face and the hook elements have engaging arms that extend at an angle of from 1 to 90 degrees relative to the longitudinal extent of the strands.Type: GrantFiled: February 17, 2004Date of Patent: February 27, 2007Assignee: 3M Innovative Properties CompanyInventors: Ronald W. Ausen, Jayshree Seth
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Publication number: 20070040000Abstract: There is provided an apparatus and methods for stretching one or more zones of a web and webs including one or more stretched zones. Each of the stretched zones in the web is stretched in the cross-web direction, i.e., the direction transverse to the downweb direction. The stretching can be performed continuously on the web as the web is advancing through the apparatus in the down-web direction. The method for stretching an extensible web in the cross direction generally is practiced on a substantially continuous cross-directional extensible web. The web is traveling in a first downweb direction at a first speed. The extensible web has a width and substantially continuous length in the first downweb direction. The crossweb stretching occurs in an orientation zone established between at least two moving nip points. The nip points are in a plane of the web with a leading nip downweb of a trailing nip with the at least two nips offset in the cross direction.Type: ApplicationFiled: June 13, 2006Publication date: February 22, 2007Inventors: Byron Jackson, Jayshree Seth, Brandy Nolan
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Patent number: 7168139Abstract: The present invention concerns breathable fasteners for use with hook fastener systems. The breathable fastening system comprises a first breathable mechanical fastener surface, which is generally a loop or fibrous type surface that can optionally be joined to a breathable backing loop, and a recon large area breathable hook type fastener. The hook type fastener generally has an integral film backing which film backing has a porosity of from 0.0001 to 0.005 cm3, a backing thickness of from 25 to 200 ?m, a stiffness of from 10 to 2000 Gurley units and a hook or projection containing surface area of at least 10 cm2.Type: GrantFiled: June 24, 2003Date of Patent: January 30, 2007Assignee: 3M Innovative Properties CompanyInventors: Jayshree Seth, Ronald W. Ausen, James S. Mrozinski, Janet A. Venne
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Publication number: 20060246256Abstract: There is provided a loop laminate for use in a hook and loop fastening system or a hook and loop fastening system. The loop laminate first comprises a backing layer, having a first face and a second face. The backing layer has a plurality of elevated projections extending from at least the first face of the backing layer wherein some of the projections extend by a distance of at least 50 ?m. A loop material is attached to at least some of the projections such that said loop material is raised off the backing layer over at least some portion of the distance between adjacent attached projections to allow for hook heads of hooks to easily penetrate the loop material.Type: ApplicationFiled: April 28, 2005Publication date: November 2, 2006Inventors: Ronald Ausen, Jayshree Seth, Janet Venne
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Publication number: 20060145388Abstract: A unitary fastener of a thermoplastic resin comprising a base film layer having generally parallel upper and lower major surfaces, arranged in a first direction the base film layer being oriented at least in the first direction. The backing layer having on at least one surface separated surface elements extending at an angle to said first direction. The invention is also related to a method of forming a unitary fastener. The method includes the steps of extruding a thermoplastic resin in a machine direction through a die plate having a continuous base portion cavity and one or more rib cavities extending from the base portion cavity, forming a strip having a base layer and continuous rib. This scoring or cutting the ribs and at least a surface layer of the film structure forms predetermined separable elements. This inelastically stretching the strip to separated projections and the separated separable surface elements across the strip.Type: ApplicationFiled: March 6, 2006Publication date: July 6, 2006Inventors: Ronald Ausen, Jayshree Seth
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Publication number: 20060147686Abstract: The present invention method is directed at coextruding a predetermined initial melt stream through at least one profiled die insert, which die insert inlet is shaped to form a nonlinear melt stream from the incoming initial melt stream. The die insert inlet has a nonlinear opening where the die insert opening structure is located between an upper boundary to a lower boundary. The die insert is positioned so as to redirect the flow of one or more of the melt streams or regions of the incoming melt stream. The initial melt stream at the die insert inlet is generally redirected in the cross direction to the original flowpath of the material melt stream. The nonlinear melt stream formed at the die insert inlet then converges within the die insert into a substantially more linear or rectangular melt flow stream at the die insert outlet opening.Type: ApplicationFiled: June 14, 2005Publication date: July 6, 2006Inventors: Ronald Ausen, Jayshree Seth, Janet Venne
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Publication number: 20060145387Abstract: The present invention concerns an extrusion formed reticulated web, mesh or netting including reticulated hook fasteners for use with hook and loop fasteners the polymer netting comprising two sets of strands at angles to each other. The first set of strands are a plurality of oriented (molecular orientation created by stretching) strands extending in a first direction and are generally mutually parallel and linear. The second set of strands are a plurality of substantially parallel strands attached only to a first face of the first set of oriented strands. The first set of oriented strands occupy a first planar cross-sectional area in the thickness direction of the formed netting. Said second set of oriented strands occupy a second planar cross-sectional area in the thickness direction of the formed netting. Preferably, these first and second planar cross-sectional areas are substantially mutually exclusive and are abutting.Type: ApplicationFiled: February 6, 2006Publication date: July 6, 2006Inventors: Jayshree Seth, Ronald Ausen
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Patent number: 7067185Abstract: A unitary fastener of a thermoplastic resin comprising a base film layer having generally parallel upper and lower major surfaces, arranged in a first direction the base film layer being oriented at least in the first direction. The backing layer having on at least one surface separated surface elements extending at an angle to said first direction. The invention is also related to a method of forming a unitary fastener. The method includes the steps of extruding a thermoplastic resin in a machine direction through a die plate having a continuous base portion cavity and one or more rib cavities extending from the base portion cavity, forming a strip having a base layer and continuous rib. This scoring or cutting the ribs and at least a surface layer of the film structure forms predetermined separable elements. This inelastically stretching the strip to separated projections and the separated separable surface elements across the strip.Type: GrantFiled: June 11, 2003Date of Patent: June 27, 2006Assignee: 3M Innovative Properties CompanyInventors: Ronald W. Ausen, Jayshree Seth
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Publication number: 20060131776Abstract: The present invention provides a method for forming preferably a unitary polymeric hook fastener comprising a flexible backing, and a multiplicity of spaced hook elements projecting from the upper surface of the unitary backing. The hook elements each comprise a stem portion attached at one end to the backing, and a head portion at the end of the stem portion opposite the backing. The head portion projects in different directions for some adjacent hook members which adjacent hook members each have a flat face which flat faces are mutually opposing in face to face relation.Type: ApplicationFiled: January 12, 2006Publication date: June 22, 2006Inventors: Jayshree Seth, Ronald Ausen, Janet Venne
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Publication number: 20060113041Abstract: Web constructions with severed elongate strands located on at least one surface are described. The severed elongate strands are attached to one or both major surfaces of a web and may be arranged in rows and columns. The elongate strands may be formed by extruding continuous strands onto a web construction, followed by selective attachment of the strands to the web at intervals. After attachment, the elongate strands may be severed at locations between the points of attachment. The severed elongate strands may be used as fastening elements on a web backing. When used as fastening elements, the webs may be used in, e.g., garments (gowns diapers, training pants, etc.), bedding, etc. Other uses may also be envisioned for the webs with severed elongate strands, e.g., personal care products (skin debridement articles, etc.), abrasive articles, polishing articles, filters constructions (where, e.g., the severed elongate strands serve as filtering elements and/or spacers), etc.Type: ApplicationFiled: January 4, 2006Publication date: June 1, 2006Inventor: Jayshree Seth
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Publication number: 20060113699Abstract: The present invention is directed at a hook strand. These hook strands have a base layer with first top face and a second bottom face and two side faces. Hook elements on the strand extend from at least one face and the hook elements have engaging arms that extend at an angle of from 1 to 90 degrees relative to the longitudinal extent of the strands.Type: ApplicationFiled: January 11, 2006Publication date: June 1, 2006Inventors: Ronald Ausen, Jayshree Seth
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Patent number: 7052636Abstract: A method for forming a unitary polymeric projection or fastener comprising a thin, strong flexible backing, and a multiplicity of thin spaced hook members projecting from the upper surface of the unitary backing the method generally including extruding a thermoplastic resin through a die plate which die plate is shaped to form a base layer and spaced ridges, ribs or hook elements projecting above a surface of the base layer. When the die forms the spaced ridges or ribs the cross sectional shape of the hook members are formed by the die plate while the initial hook member thickness is formed by transversely cutting the ridges at spaced locations along their lengths to form discrete cut portions of the ridges. Subsequently longitudinal stretching of the backing layer (in the direction of the ridges on the machine direction) separates these cut portions of the ridges, which cut portion then form spaced apart hook members.Type: GrantFiled: July 14, 2003Date of Patent: May 30, 2006Assignee: 3M Innovative Properties CompanyInventors: Ronald W. Ausen, William C. Unruh, Philip Miller, Jayshree Seth
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Patent number: 7052565Abstract: Web constructions with severed elongate strands located on at least one surface are described. The severed elongate strands are attached to one or both major surfaces of a web and may be arranged in rows and columns. The elongate strands may be formed by extruding continuous strands onto a web construction, followed by selective attachment of the strands to the web at intervals. After attachment, the elongate strands may be severed at locations between the points of attachment. The severed elongate strands may be used as fastening elements on a web backing. When used as fastening elements, the webs may be used in, e.g., garments (gowns diapers, training pants, etc.), bedding, etc. Other uses may also be envisioned for the webs with severed elongate strands, e.g., personal care products (skin debridement articles, etc.), abrasive articles, polishing articles, filters constructions (where, e.g., the severed elongate strands serve as filtering elements and/or spacers), etc.Type: GrantFiled: January 27, 2003Date of Patent: May 30, 2006Assignee: 3M Innovative Properties CompanyInventor: Jayshree Seth
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Patent number: 7048984Abstract: The present invention concerns an extrusion formed reticulated web, mesh or netting including reticulated hook fasteners for use with hook and loop fasteners the polymer netting comprising two sets of strands at angles to each other. The first set of strands are a plurality of oriented (molecular orientation created by stretching) strands extending in a first direction and are generally mutually parallel and linear. The second set of strands are a plurality of substantially parallel strands attached only to a first face of the first set of oriented strands. The first set of oriented strands occupy a first planar cross-sectional area in the thickness direction of the formed netting. Said second set of oriented strands occupy a second planar cross-sectional area in the thickness direction of the formed netting. Preferably, these first and second planar cross-sectional areas are substantially mutually exclusive and are abutting.Type: GrantFiled: February 28, 2003Date of Patent: May 23, 2006Assignee: 3M Innovative Properties CompanyInventors: Jayshree Seth, Ronald W. Ausen
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Patent number: 7014906Abstract: The present invention is directed at a hook mechanical fastener/fibrous composite comprising hook elements on hook containing backing elements or a netting embedded in a fibrous web. The hook elements preferably are on backing elements that are connected or integral and can be strands oriented at angles to each other in a net form. The backing elements generally have a first outer face and a second outer face. The backing elements on at least one of the first or second outer faces have a plurality of hook elements. The hook containing backing elements are embedded within a fibrous web, preferably by hydroentangling the fibers around the backing element, preferably without use of auxiliary attachment means such as adhesives or point bonding.Type: GrantFiled: October 14, 2003Date of Patent: March 21, 2006Assignee: 3M Innovative Properties CompanyInventors: Scott J. Tuman, Jayshree Seth, Timothy J. Lindquist, Troy K. Ista, Ronald W. Ausen