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US 5,226,188 AGranted
Ventilated foam cushion
OwnerYaw-Tyng Liouinventor
Life of this patent
Estimating the term…
Abstract
This invention relates to a cushion and in particular to one including a pad with an upper surface having a plurality of through holes, and a seat having a recess for receiving the pad and a plurality of ventilation holes, whereby when an user seats thereon, the pad and the seat will be deformed thereby causing the air therein to eject upwardly to blow off the heat evolved from the user.
Claims1
A cushion comprising:
- a pad provided with a plurality of conical through holes and having two inclined opposite sides and a flat bottom;
- and
- a seat having a recess for receiving said pad and a check valve in communication with said recess, said recess being provided with a plurality of conical ventilation holes which are in communication with each other.
Dependencies are inferred from the claim text.