Patent ID: 6640943
Filing Date: 2003-11-04
Classification: F16F

Abstract:
A shock absorber comprising:a damping fluid cylinder having a first end defining a damping fluid chamber; a piston assembly comprising; a shaft having a first shaft end within the cylinder; and a piston mounted to the shaft towards the first shaft end for reciprocal movement within the cylinder, the piston dividing the chamber into first and second variable-volume parts; at least one of the piston assembly and the cylinder comprising a restricted fluid flow path fluidly coupling the first and second parts of the chamber; and a sealing scraper assembly, mounted at the first end of the cylinder, comprising: a sealing ice scraper member having a generally cylindrical scraper surface, said scraper surface defining a scraper surface bore through which said shaft reciprocally passes; said scraper surface bore being sized larger than said shaft so to define a desired gap between the scraper surface and the shaft; a recess formed into said scraper surface; and an outer fluid seal mounted within said recess and in fluid sealing contact with the shaft, whereby liquid within said gap is at least inhibited from passing the outer fluid seal and into said damping fluid chamber.