Patent ID: 8690434

Claim:
A damper roller system comprising: an external rotating element; a bearing housing connected to said external rotating element, the bearing housing being filled with a viscous fluid and comprising at least one bearing element immersed in said viscous fluid; at least one sealing element connected to the bearing housing and sealing the viscous fluid thereinside; and a non-rotating shaft having opposite first and second ends, the non-rotating shaft being held in place at said first end thereof by the at least one bearing element and being rigidly connectable at said second end thereof to an object, said first end being substantially nail-shaped having a flanged head enclosed within the bearing housing, the nail-shaped first end being surrounded by the viscous fluid, and the nail-shaped first end extending radially outwardly beyond a radially innermost portion of each of the at least one bearing element, wherein the nail-shaped first end and the bearing housing define a space filled with the viscous fluid, and whereby a rotation of the external rotating element drives a common rotation of the bearing housing and of the at least one bearing element comprised therein, and shears the viscous fluid at least within the space, said rotation of the external rotating element being damped substantially proportionally to a rotational speed thereof.