Patents Assigned to DAVIDOV DAVID YAKHYAEVICH
  • FACING STRUCTURE FOR A STAIR STEP FORWARD PORTION
    Publication number: 20080016796
    Abstract: A facing structure for a forward portion of steps of the stair comprises a working member made of a resilient material, a horizontal and a vertical fastening members connected to rearward and lower surfaces of the said working member. The thickness H of the working member and the modulus of elasticity E of a resilient material satisfy the relationships: H>h+h1, E H×k, where: h—the thickness of a facing material of the horizontal surface of stair steps [m], h1—the thickness of the horizontal fastening member [m], k=1011 [n/m3].
    Type: Application
    Filed: July 30, 2007
    Publication date: January 24, 2008
    Applicant: DAVIDOV DAVID YAKHYAEVICH
    Inventor: Mikhail TIMOFEEV