Patents by Inventor Gopalkrishna Padmanabhan
Gopalkrishna Padmanabhan 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: 10513298Abstract: A composite wood floor board assembled adjacent to another composite wood floor board, each the board comprising: a top layer of laminated hardwood comprising: a top side; a bottom side; a first lateral side; and a second lateral side opposite the first lateral side, wherein at least one of the first and second lateral sides is formed without shiplap lips; and a bottom layer comprising a planar fiber-reinforced polymer composite that is bonded to the bottom side of the top layer of the laminated hardwood and reinforces the top layer, wherein the bottom layer of fiber-reinforced polymer composite extends laterally outwardly by a distance up to two inches (2?) from the first lateral side of the top layer, and wherein a part of the bottom layer of the composite wood floor board is bonded to the top layer with a first adhesive and a part of the bottom layer is bonded with a second adhesive or sealant.Type: GrantFiled: July 11, 2017Date of Patent: December 24, 2019Assignee: HAVCO WOOD PRODUCTS, LLCInventor: Gopalkrishna Padmanabhan
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Patent number: 10513297Abstract: A composite wood floor board assembled adjacent to another composite wood floor board, each the board comprising: a top layer of laminated hardwood comprising: a top side; a bottom side; a first lateral side; and a second lateral side opposite the first lateral side, wherein at least one of the first and second lateral sides is formed without shiplap lips; and a bottom layer comprising a planar fiber-reinforced polymer composite that is bonded to the bottom side of the top layer of the laminated hardwood and reinforces the top layer, wherein the bottom layer of fiber-reinforced polymer composite extends laterally outwardly by a distance up to two inches (2?) from the first lateral side of the top layer, and wherein a part of the bottom layer of the composite wood floor board is bonded to the top layer with a first adhesive and a part of the bottom layer is bonded with a second adhesive or sealant.Type: GrantFiled: November 20, 2014Date of Patent: December 24, 2019Assignee: HAVCO WOOD PRODUCTS, LLCInventor: Gopalkrishna Padmanabhan
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Publication number: 20180354236Abstract: A composite reinforced hybrid wood floor for cargo-carrying truck trailers, truck bodies, and containers is provided. Two or more different types of woods are mixed in a controlled manner, arranged in a pattern and glued together to form hybrid wood board and a fiber/polymer composite layer is bonded to the underside of the hybrid wood board to form the composite reinforced hybrid wood floor boards provided herein. The composite reinforced hybrid wood floor provides weight reduction and/or cost savings as compared with a conventional composite wood floor made of a single type of wood, such as oak or hard maple.Type: ApplicationFiled: August 21, 2018Publication date: December 13, 2018Inventors: Gopalkrishna Padmanabhan, James N. Vangilder, M. Bruce Bader
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Composite reinforced hybrid wood floor with wood strips arranged in a pattern for vehicular trailers
Patent number: 10081165Abstract: A composite reinforced hybrid wood floor for cargo-carrying truck trailers, truck bodies, and containers is provided. Two or more different types of woods are mixed in a controlled manner, arranged in a pattern and glued together to form hybrid wood board and a fiber/polymer composite layer is bonded to the underside of the hybrid wood board to form the composite reinforced hybrid wood floor boards provided herein. The composite reinforced hybrid wood floor provides weight reduction and/or cost savings as compared with a conventional composite wood floor made of a single type of wood, such as oak or hard maple.Type: GrantFiled: February 20, 2015Date of Patent: September 25, 2018Assignee: HAVCO WOOD PRODUCTS, LLC.Inventors: Gopalkrishna Padmanabhan, James N. Vangilder, M. Bruce Bader -
Patent number: 9988098Abstract: A hybrid laminated wood floor for cargo-carrying truck trailers, truck bodies and containers is provided. The hybrid laminated wood floor is formed from two or more different types of hardwood strips that are mixed in a controlled manner and arranged in a pattern. The hardwoods are selected to provide a difference in the average density of the wood types. The hybrid wood floor provides weight reduction and cost savings as compared with a conventional laminated wood floor made of a single type of wood, such as oak or hard maple.Type: GrantFiled: February 20, 2015Date of Patent: June 5, 2018Assignee: HAVCO WOOD PRODUCTS, LLCInventors: Gopalkrishna Padmanabhan, James N. Vangilder, M. Bruce Bader
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Publication number: 20170305475Abstract: A composite wood floor board assembled adjacent to another composite wood floor board, each the board comprising: a top layer of laminated hardwood comprising: a top side; a bottom side; a first lateral side; and a second lateral side opposite the first lateral side, wherein at least one of the first and second lateral sides is formed without shiplap lips; and a bottom layer comprising a planar fiber-reinforced polymer composite that is bonded to the bottom side of the top layer of the laminated hardwood and reinforces the top layer, wherein the bottom layer of fiber-reinforced polymer composite extends laterally outwardly by a distance up to two inches (2?) from the first lateral side of the top layer, and wherein a part of the bottom layer of the composite wood floor board is bonded to the top layer with a first adhesive and a part of the bottom layer is bonded with a second adhesive or sealant.Type: ApplicationFiled: July 11, 2017Publication date: October 26, 2017Inventor: GOPALKRISHNA PADMANABHAN
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COMPOSITE REINFORCED HYBRID WOOD FLOOR WITH WOOD STRIPS ARRANGED IN A PATTERN FOR VEHICULAR TRAILERS
Publication number: 20150239507Abstract: A composite reinforced hybrid wood floor for cargo-carrying truck trailers, truck bodies, and containers is provided. Two or more different types of woods are mixed in a controlled manner, arranged in a pattern and glued together to form hybrid wood board and a fiber/polymer composite layer is bonded to the underside of the hybrid wood board to form the composite reinforced hybrid wood floor boards provided herein. The composite reinforced hybrid wood floor provides weight reduction and/or cost savings as compared with a conventional composite wood floor made of a single type of wood, such as oak or hard maple.Type: ApplicationFiled: February 20, 2015Publication date: August 27, 2015Inventors: Gopalkrishna Padmanabhan, James N. Vangilder, M. Bruce Bader -
Publication number: 20150239508Abstract: A hybrid laminated wood floor for cargo-carrying truck trailers, truck bodies and containers is provided. The hybrid laminated wood floor is formed from two or more different types of hardwood strips that are mixed in a controlled manner and arranged in a pattern. The hardwoods are selected to provide a difference in the average density of the wood types. The hybrid wood floor provides weight reduction and cost savings as compared with a conventional laminated wood floor made of a single type of wood, such as oak or hard maple.Type: ApplicationFiled: February 20, 2015Publication date: August 27, 2015Inventors: Gopalkrishna Padmanabhan, James N. Vangilder, M. Bruce Bader
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Publication number: 20150076861Abstract: A composite wood floor board assembled adjacent to another composite wood floor board, each the board comprising: a top layer of laminated hardwood comprising: a top side; a bottom side; a first lateral side; and a second lateral side opposite the first lateral side, wherein at least one of the first and second lateral sides is formed without shiplap lips; and a bottom layer comprising a planar fiber-reinforced polymer composite that is bonded to the bottom side of the top layer of the laminated hardwood and reinforces the top layer, wherein the bottom layer of fiber-reinforced polymer composite extends laterally outwardly by a distance up to two inches (2?) from the first lateral side of the top layer, and wherein a part of the bottom layer of the composite wood floor board is bonded to the top layer with a first adhesive and a part of the bottom layer is bonded with a second adhesive or sealant.Type: ApplicationFiled: November 20, 2014Publication date: March 19, 2015Inventor: GOPALKRISHNA PADMANABHAN
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Patent number: 8950144Abstract: A composite lap joint for the assembly of a first and a second floor board from a plurality of boards, used to make the floor for a vehicular trailer, each board composed of a layer of wood at the top side and a layer of fiber reinforced composite at the bottom side, wherein the composite layer is at least partly bonded to the wood layer; the composite layer of a first board forming a lip, wherein the lip is a lateral extension of the composite layer and the lip is disposed under the bottom side recess of an adjacent second board to form a composite joint, whereby the joint provides improved flexibility, moisture sealing ability at the seam of the joint and higher strength to the edges of the boards.Type: GrantFiled: January 25, 2011Date of Patent: February 10, 2015Assignee: Havco Wood Products, LLCInventor: Gopalkrishna Padmanabhan
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Patent number: 8337994Abstract: A method for providing improved moisture protection to a wood board flooring comprising a plurality of solid wood components which together form the wood board, such that the wood board has a first surface and a second surface, the method comprising: applying a coating to at least one of the first and second surfaces of the wood board, the coating being substantially free of water and solvents.Type: GrantFiled: May 24, 2011Date of Patent: December 25, 2012Assignee: Havco Wood Products, LLCInventor: Gopalkrishna Padmanabhan
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Publication number: 20110223328Abstract: A method for providing improved moisture protection to a wood board flooring comprising a plurality of solid wood components which together form the wood board, such that the wood board has a first surface and a second surface, the method comprising: applying a coating to at least one of the first and second surfaces of the wood board, the coating being substantially free of water and solvents.Type: ApplicationFiled: May 24, 2011Publication date: September 15, 2011Inventor: GOPALKRISHNA PADMANABHAN
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Publication number: 20110179740Abstract: A composite lap joint for the assembly of a first and a second floor board from a plurality of boards, used to make the floor for a vehicular trailer, each board composed of a layer of wood at the top side and a layer of fiber reinforced composite at the bottom side, wherein the composite layer is at least partly bonded to the wood layer; the composite layer of a first board forming a lip, wherein the lip is a lateral extension of the composite layer and the lip is disposed under the bottom side recess of an adjacent second board to form a composite joint, whereby the joint provides improved flexibility, moisture sealing ability at the seam of the joint and higher strength to the edges of the boards.Type: ApplicationFiled: January 25, 2011Publication date: July 28, 2011Inventor: GOPALKRISHNA PADMANABHAN
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Patent number: 7972707Abstract: A coated wood board flooring having improved moisture protection, the flooring comprising: a plurality of solid wood components which together form the wood board, such that the wood board has a first surface and a second surface; and a coating substantially free of water and solvents, wherein the coating is applied to at least one of the first and second surfaces of the wood board.Type: GrantFiled: September 2, 2004Date of Patent: July 5, 2011Assignee: Havco Wood Products, LLC.Inventor: Gopalkrishna Padmanabhan
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Publication number: 20060179733Abstract: A composite wood flooring system for a vehicular trailer floor comprising: a plurality of wood boards, each wood board comprising a top surface and a bottom surface opposite the top surface; and a filled thermoplastic composite layer comprising a thermoplastic polymer and a discontinuous filler, the thermoplastic layer being substantially bonded to the top surface of each wood board.Type: ApplicationFiled: February 11, 2005Publication date: August 17, 2006Inventor: Gopalkrishna Padmanabhan
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Publication number: 20050266200Abstract: A coated wood board flooring having improved moisture protection, the flooring comprising: a plurality of solid wood components which together form the wood board, such that the wood board has a first surface and a second surface; and a coating substantially free of water and solvents, wherein the coating is applied to at least one of the first and second surfaces of the wood board.Type: ApplicationFiled: September 2, 2004Publication date: December 1, 2005Inventor: Gopalkrishna Padmanabhan
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Patent number: 6558766Abstract: A fiber reinforced composite wood flooring is designed particularly for use in van-type truck trailers which experience adverse operating conditions due to heavy lift truck traffic on the top side and water spray during rainy periods on the bottom side. The composite wood flooring comprises edge-glued laminated wood which is underlaid with a thin layer of fiber reinforced plastic. The top surface of the composite wood floor is the same as that of a conventional laminated wood floor. The fiber reinforced plastic underlay is composed of glass and/or carbon fibers embedded in a polymeric resin such as epoxy, phenolic, vinyl ester, polypropylene or polyamide resin. The fiber reinforcement is designed to enhance the mechanical properties of the flooring in the longitudinal and transverse directions of the floor. The fiber reinforced plastic improves the fatigue resistance of the composite wood flooring and prevents water leakage into the trailer through the floor boards.Type: GrantFiled: December 7, 2000Date of Patent: May 6, 2003Assignee: Havco Wood Products L.L.C.Inventors: Gopalkrishna Padmanabhan, Lokeswarappa R. Dharani, James N. Vangilder
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Patent number: 6558765Abstract: A fiber reinforced composite wood board is designed particularly for use in the flooring of truck trailers which experience adverse operating conditions such as from heavy loads of lift trucks on the top side and water spray during rainy periods on the bottom side. The composite wood board comprises an edge-glued laminated wood member composed of wood segments with end joints. The wood member is underlaid with a thin layer of fiber reinforced plastic. The top surface of the composite wood board is the same as that of the laminated wood. The fiber reinforced plastic underlay is composed of glass and/or carbon fibers embedded in a polymeric resin such as epoxy, phenolic, vinyl ester, polyester, polypropylene or polyamide resin. Further, the fiber reinforced plastic underlay is substantially bonded to the wood member with a reactive hotmelt adhesive.Type: GrantFiled: December 7, 2000Date of Patent: May 6, 2003Assignee: Havco Wood Products L.L.C.Inventor: Gopalkrishna Padmanabhan
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Publication number: 20010035264Abstract: A fiber reinforced composite wood board is designed particularly for use in the flooring of truck trailers which experience adverse operating conditions such as from heavy loads of lift trucks on the top side and water spray during rainy periods on the bottom side. The composite wood board comprises an edge-glued laminated wood member composed of wood segments with end joints. The wood member is underlaid with a thin layer of fiber reinforced plastic. The top surface of the composite wood board is the same as that of the laminated wood. The fiber reinforced plastic underlay is composed of glass and/or carbon fibers embedded in a polymeric resin such as epoxy, phenolic, vinyl ester, polyester, polypropylene or polyamide resin. Further, the fiber reinforced plastic underlay is substantially bonded to the wood member with a reactive hotmelt adhesive.Type: ApplicationFiled: December 7, 2000Publication date: November 1, 2001Applicant: Havco Wood Products, Inc.Inventor: Gopalkrishna Padmanabhan
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Publication number: 20010003623Abstract: A fiber reinforced composite wood flooring is designed particularly for use in van-type truck trailers which experience adverse operating conditions due to heavy lift truck traffic on the top side and water spray during rainy periods on the bottom side. The composite wood flooring comprises edge-glued laminated wood which is underlaid with a thin layer of fiber reinforced plastic. The top surface of the composite wood floor is the same as that of a conventional laminated wood floor. The fiber reinforced plastic underlay is composed of glass and/or carbon fibers embedded in a polymeric resin such as epoxy, phenolic, vinyl ester, polypropylene or polyamide resin. The fiber reinforcement is designed to enhance the mechanical properties of the flooring in the longitudinal and transverse directions of the floor. The fiber reinforced plastic improves the fatigue resistance of the composite wood flooring and prevents water leakage into the trailer through the floor boards.Type: ApplicationFiled: December 7, 2000Publication date: June 14, 2001Applicant: Havco Wood Products, Inc.Inventors: Gopalkrishna Padmanabhan, Lokeswarappa R. Dharani, James N. Vangilder