Patents by Inventor Subhamay Gangopadhyay

Subhamay Gangopadhyay 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).

  • Stepwise repeated destabilization and stabilization of highly collapsible soil mass by ‘soil nailing technique’ used for construction of railway/road underpass
    Patent number: 9359725
    Abstract: The excavations of side vertical walls for building and underpasses must be shored so that the excavations adjacent to the neighboring properties do not cave in during the constructions. A Soil Nailing system has been used for stabilization of excavations and natural slopes for the last few decades in India and Abroad. Soil Nailing Technique used steel anchor rods inserted directly into the soil mass as a driven nails and when Nails are placed in pre-drilled holes to form grouted nails. In both the cases, it restrained load and the side deformations. In the present study, an innovative technique of ‘Soil Nailing’ has been developed for stepwise vertical de-stabilization and stabilization of compacted collapsible sandy soil for the construction of railway underpasses in live railway loading conditions.
    Type: Grant
    Filed: July 17, 2013
    Date of Patent: June 7, 2016
    Assignee: COUNCIL OF SCIENTIFIC & INDUSTRIAL RESEARCH
    Inventors: Kanwar Singh, Pulikanti Subramanya Prasad, Sudhir Mathur, Farhat Azad, Subhamay Gangopadhyay
  • STEPWISE REPEATED DESTABILIZATION AND STABILIZATION OF HIGHLY COLLAPSIBLE SOIL MASS BY 'SOIL NAILING TECHNIQUE' USED FOR CONSTRUCTION OF RAILWAY/ROAD UNDERPASS
    Publication number: 20150197895
    Abstract: The excavations of side vertical walls for building and underpasses must be shored so that the excavations adjacent to the neighboring properties do not cave in during the constructions. A Soil Nailing system has been used for stabilization of excavations and natural slopes for the last few decades in India and Abroad. Soil Nailing Technique used steel anchor rods inserted directly into the soil mass as a driven nails and when Nails are placed in pre-drilled holes to form grouted nails. In both the cases, it restrained load and the side deformations. In the present study, an innovative technique of ‘Soil Nailing’ has been developed for stepwise vertical de-stabilization and stabilization of compacted collapsible sandy soil for the construction of railway underpasses in live railway loading conditions.
    Type: Application
    Filed: July 17, 2013
    Publication date: July 16, 2015
    Inventors: Kanwar Singh, Pulikanti Subramanya Prasad, Sudhir Mathur, Farhat Azad, Subhamay Gangopadhyay