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).

  • Patent number: 10513298
    Abstract: 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: Grant
    Filed: July 11, 2017
    Date of Patent: December 24, 2019
    Assignee: HAVCO WOOD PRODUCTS, LLC
    Inventor: Gopalkrishna Padmanabhan
  • Patent number: 10513297
    Abstract: 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: Grant
    Filed: November 20, 2014
    Date of Patent: December 24, 2019
    Assignee: HAVCO WOOD PRODUCTS, LLC
    Inventor: Gopalkrishna Padmanabhan
  • Publication number: 20180354236
    Abstract: 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: Application
    Filed: August 21, 2018
    Publication date: December 13, 2018
    Inventors: Gopalkrishna Padmanabhan, James N. Vangilder, M. Bruce Bader
  • Patent number: 10081165
    Abstract: 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: Grant
    Filed: February 20, 2015
    Date of Patent: September 25, 2018
    Assignee: HAVCO WOOD PRODUCTS, LLC.
    Inventors: Gopalkrishna Padmanabhan, James N. Vangilder, M. Bruce Bader
  • Patent number: 9988098
    Abstract: 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: Grant
    Filed: February 20, 2015
    Date of Patent: June 5, 2018
    Assignee: HAVCO WOOD PRODUCTS, LLC
    Inventors: Gopalkrishna Padmanabhan, James N. Vangilder, M. Bruce Bader
  • Publication number: 20170305475
    Abstract: 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: Application
    Filed: July 11, 2017
    Publication date: October 26, 2017
    Inventor: GOPALKRISHNA PADMANABHAN
  • Publication number: 20150239507
    Abstract: 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: Application
    Filed: February 20, 2015
    Publication date: August 27, 2015
    Inventors: Gopalkrishna Padmanabhan, James N. Vangilder, M. Bruce Bader
  • Publication number: 20150239508
    Abstract: 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: Application
    Filed: February 20, 2015
    Publication date: August 27, 2015
    Inventors: Gopalkrishna Padmanabhan, James N. Vangilder, M. Bruce Bader
  • Publication number: 20150076861
    Abstract: 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: Application
    Filed: November 20, 2014
    Publication date: March 19, 2015
    Inventor: GOPALKRISHNA PADMANABHAN
  • Patent number: 8950144
    Abstract: 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: Grant
    Filed: January 25, 2011
    Date of Patent: February 10, 2015
    Assignee: Havco Wood Products, LLC
    Inventor: Gopalkrishna Padmanabhan
  • Patent number: 8337994
    Abstract: 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: Grant
    Filed: May 24, 2011
    Date of Patent: December 25, 2012
    Assignee: Havco Wood Products, LLC
    Inventor: Gopalkrishna Padmanabhan
  • Publication number: 20110223328
    Abstract: 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: Application
    Filed: May 24, 2011
    Publication date: September 15, 2011
    Inventor: GOPALKRISHNA PADMANABHAN
  • Publication number: 20110179740
    Abstract: 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: Application
    Filed: January 25, 2011
    Publication date: July 28, 2011
    Inventor: GOPALKRISHNA PADMANABHAN
  • Patent number: 7972707
    Abstract: 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: Grant
    Filed: September 2, 2004
    Date of Patent: July 5, 2011
    Assignee: Havco Wood Products, LLC.
    Inventor: Gopalkrishna Padmanabhan
  • Publication number: 20060179733
    Abstract: 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: Application
    Filed: February 11, 2005
    Publication date: August 17, 2006
    Inventor: Gopalkrishna Padmanabhan
  • Publication number: 20050266200
    Abstract: 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: Application
    Filed: September 2, 2004
    Publication date: December 1, 2005
    Inventor: Gopalkrishna Padmanabhan
  • Patent number: 6558766
    Abstract: 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: Grant
    Filed: December 7, 2000
    Date of Patent: May 6, 2003
    Assignee: Havco Wood Products L.L.C.
    Inventors: Gopalkrishna Padmanabhan, Lokeswarappa R. Dharani, James N. Vangilder
  • Patent number: 6558765
    Abstract: 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: Grant
    Filed: December 7, 2000
    Date of Patent: May 6, 2003
    Assignee: Havco Wood Products L.L.C.
    Inventor: Gopalkrishna Padmanabhan
  • Publication number: 20010035264
    Abstract: 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: Application
    Filed: December 7, 2000
    Publication date: November 1, 2001
    Applicant: Havco Wood Products, Inc.
    Inventor: Gopalkrishna Padmanabhan
  • Publication number: 20010003623
    Abstract: 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: Application
    Filed: December 7, 2000
    Publication date: June 14, 2001
    Applicant: Havco Wood Products, Inc.
    Inventors: Gopalkrishna Padmanabhan, Lokeswarappa R. Dharani, James N. Vangilder