Abstract: An upper extremity prosthesis for placement on a residual limb of a person that includes an elongated member having a first end and an opposite second end and also includes an outer prosthetic shell having a first end and an opposite second end. The prosthesis also includes at least a first support and a second support, wherein the first support and the second support surround and are fixedly coupled to the elongated member at first and second attachment points, respectively. The outer prosthetic shell thus surrounds and is coupled to the first support and the second support. The first support and the second support can be a disk-shaped structure through which the elongated member passes.

Abstract: The present invention relates to a windback device and method of use to prevent lubricant from leaking from a lubricant sump. More specifically, the present invention is comprised of a windback device within a lubricant sump formed from the coupling of an annular sump housing, an annular fluid seal assembly, and a bearing. The annular housing substantially surrounds the runner to form a chamber. The seal assembly is coupled to a sump housing both of which are adapted to receive a rotatable runner such that a sealed chamber is formed around the runner. A plurality of inclined threads extend along an inner face of the windback device and are angled such that lubricant or fluid splashed from the rotating shaft is redirected away from a shaft seal element of the annular fluid seal and through leak off slots leading to the sump housing chamber.

Abstract: The present invention relates to a windback device and method of use to prevent lubricant from leaking from a lubricant sump. More specifically, the present invention is comprised of a windback device within a lubricant sump formed from the coupling of an annular sump housing, an annular fluid seal assembly, and a bearing. The annular housing substantially surrounds the runner to form a chamber. The seal assembly is coupled to a sump housing both of which are adapted to receive a rotatable runner such that a sealed chamber is formed around the runner. A plurality of inclined threads extend along an inner face of the windback device and are angled such that lubricant or fluid splashed from the rotating shaft is redirected away from a shaft seal element of the annular fluid seal and through leak off slots leading to the sump housing chamber.

Abstract: A hydrostatic seal assembly used between a shaft and a housing to restrict the flow of fluid from a relatively higher pressure region in the housing to a relatively lower pressure region in the housing includes a seal runner extending radially from the shaft and having a shaft sealing surface, and a seal ring positioned around the shaft and having a sealing face surface positioned for movement toward and away from the shaft sealing surface and forming a seal gap therebetween to break down the pressure across the seal ring.

Abstract: A hydrostatic seal assembly used between a shaft and a housing to restrict the flow of fluid from a relatively higher pressure region in the housing to a relatively lower pressure region in the housing includes a seal runner extending radially from the shaft and having a shaft sealing surface, and a seal ring positioned around the shaft and having a sealing face surface positioned for movement toward and away from the shaft sealing surface and forming a seal gap therebetween to break down the pressure across the seal ring.