Stretch assisting cushion

Details Stretch assisting cushion Stretch assisting cushion

2011-06-28

2011-06-28

Trettel, Michael (Department: 3673)

Beds

Support for users body or part thereof

Removable support specially adapted for seating

C005S630000, C482S142000

Reexamination Certificate

active

07966679

ABSTRACT:
A stretch assist cushion includes an upper member with an upper surface serving as a sitting surface in contact with the user's hip directly or through a covering member covering the upper member, the upper member made of an elastic material; and a lower member located below the upper member and with lower surface serving as a bottom surface in contact with a floor directly or through a covering member covering the lower member, the lower member made of a material harder than the material of the upper member. When the cushion is positioned such that the bottom surface is in contact with the floor, the sitting surface has a predetermined tilt angle relative to the floor, and the lower member determines a predetermined distance between the floor and the lowest point of the sitting surface that has the predetermined tilt angle.

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Standard No. JIS K 6400-2:2004; “Flexible Cellular Polymeric Materials—Determination of the Physical Properties—Part 2: Hardness (Indentation Technique) and Stress-Strain Characteristics in Compression”; Mar. 20, 2004; Japanese Standards Association/The Japan Rubber Manufacturers Association. (Partial English-Language Translation Attached).
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