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US 6,317,908 B1Granted
Support device with variable firmness
OwnerLionel A. Walpininventor
Life of this patent
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Abstract
An orthopedic support device comprising an embodiment of the support device comprises a firm core, a recess located on a top surface of the core, a memory foam layer located within the recess, a cushion layer located along a top surface of the memory foam layer, a C-shaped boundary layer wrapped around a first lengthwise edge of the core, a bottom surface of the core, and a second lengthwise edge of the core, and one or more inflatable bladders disposed within the firm core.
Claims17
A support device, comprising:
- a core comprising a first and a second edge, a top surface, and a bottom surface;
- a recess formed in said first surface of said core;
- a first foam layer disposed within said recess;
- a C-shaped boundary layer covering said first edge of said core, said second surface of said core, and said second edge of said core;
- and
- an inflatable bladder disposed within the core.
3 more elements
Dependencies are inferred from the claim text.