Cushion

Details Cushion Cushion

A - Human Necessities

47

C

A47C 27/10 (2006.01) A61G 7/057 (2006.01) A61G 5/10 (2006.01)

Patent

CA 2145097

A cushion for the seat of a chair is provided, having at least two groups of cyclically inflatable tubes (4, 6, 8, 10), each group comprising at least one tube. Control means (18) inflates and deflates each group sequentially. The cushion also has a buf- fer chamber (12, 14) maintained by the control means (18) in communication with the inflated group or groups of cyclically inflat- able tubes. The buffer chamber comprises at least one inflatable buffer tube which provides a part of the sitting surface of the chair.

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