×

FRAME MEMBER AND ATTACHED MEMBRANES

  • US 20090144897A1
  • Filed: 02/17/2009
  • Published: 06/11/2009
  • Est. Priority Date: 05/19/1998
  • Status: Active Grant
First Claim
Patent Images

1. An apparatus, comprising:

  • a first membrane having a first portion and a second portion opposite the first portion, the first portion and the second portion collectively defining a sleeve and defining an outermost perimeter of the first membrane;

    a frame member formed from a flexible twistable material, the frame member being disposed between the first portion and the second portion within the sleeve;

    an inflatable bladder coupled to the first membrane, the inflatable bladder having a perimeter portion at least a portion of which is coupled to the first membrane and disposed offset from the outermost perimeter of the first membrane;

    a second membrane coupled to a first portion of a top surface of the first membrane; and

    a third membrane coupled to a second portion of the top surface of the first membrane, the first portion of the first membrane being different than the second portion of the first membrane.

View all claims
  • 5 Assignments
Timeline View
Assignment View
    ×
    ×