Spring members
AssigneeAcross Co., Ltd.
InventorsTakao Nakagawa, Masaharu Tachibana, Mihoko Yamashita, Yasuo Nozaki, Toshihiro Sato
Life of this patent
Estimating the term…
Abstract
A spring member made of a carbon fibers/carbon composite material in which carbon fibers are dispersed in a matrix of graphite, The spring member has a spring constant in a range of 0.1 to 25 kg/mm and a density of about 1.5 to 3.0 g/cm.sup.3. For use in high temperature severe conditions a ceramic material is incorporated into the surface of the spring member.
Claims26
A spring member comprising a carbon fibers/carbon composite material, said composite material comprising carbon fibers and a matrix composed mainly of graphite, said carbon fibers being dispersed in said matrix, wherein a spring constant of the spring member is in a range of 0.1 to 25 kg/mm and a density of the spring member is in a range of 1.5 to 3.0 g/cm.sup.3.
Dependencies are inferred from the claim text.