Foam spring
OwnerWilly Poppeinventor
Life of this patent
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Abstract
Elastic springy element, characterized by the fact that it consists of a mainly tubular body, made of synthetic foam material or the like, whereby the wall of the body displays a number of hollows, in staggered symmetry the cross-sectional surface of which varies from practically zero at the inner wall of the body, to a maximum value at the outer wall, for an unloaded body.
Claims14
Elastic spring element, comprising a tubular body of synthetic foam material or the like, the wall of the body having a plurality of hollows arranged in staggered symmetry through its tubular wall, the cross-sectional width of which varies from practically zero at the inner surface of the body to a maximum value at the outer surface, no load being applied.
Dependencies are inferred from the claim text.