Beds – Mattress – Sectional with regard to firmness
Reexamination Certificate
2008-10-09
2010-12-07
Trettel, Michael (Department: 3673)
Beds
Mattress
Sectional with regard to firmness
C005S718000, C005S740000
Reexamination Certificate
active
07845035
ABSTRACT:
A pressure dispersion system includes a pressure dispersion pad and a pressure dispersing mattress system for body support and sleep. The pressure dispersion pad and pressure dispersing mattress systems reduce pressure points from a supported body to less than approximately 32 mm Hg to reduce or eliminate capillary closing and a resultant reduction in pressure concentration and resultant discomfort and repositioning during sleep. Empirical design from human body pressure mapping is used to identify support zones for which components are selected and assembled in the pressure dispersion support systems for pressure dispersion and relief. In a pressure dispersion support system in the form of a mattress, multiple zones are defined by arrangement of different kinds of support materials, including foam tops such as memory foam or moderate to low density polyurethane, and secondary foam layers or foam base of relatively higher density polyurethane and latex. Different types of foam and foam constructs are provided in different zones of the pressure dispersion pad. Incorporation of the pressure dispersion pad in a mattress system, and in combination with foam dampening inserts in an innerspring of the mattress system, translate the pressure relieving properties of the zoned pressure dispersion pad into a mattress system.
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DeMoss Larry K.
Letton Alan
Nagy Julius
Kelleher William
Roetzel & Andress
Sealy Technology LLC
Trettel Michael
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