Patents by Inventor Mukunda Pramanik

Mukunda Pramanik 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).

  • Sound insulation for escalator balustrade
    Patent number: 5284237
    Abstract: A glass escalator balustrade is mounted in an extruded metal channel which is secured to the escalator truss. Closed cell foam strips are disposed in contact with the balustrade panels. The strips insulate the balustrade from noises produced by the operating components of the escalator thereby rendering the escalator quieter for passengers. A layer of the sound insulating fiberglass nylon insulation is also adhered to the underside of the inner deck panels to insulate the latter from noise produced by the step rollers and step roller tracks.
    Type: Grant
    Filed: December 30, 1992
    Date of Patent: February 8, 1994
    Assignee: Otis Elevator Company
    Inventors: Ary O. Mello, Gerald E. Johnson, Mukunda Pramanik