Patent ID: 6027101
Filing Date: 2000-02-22
Classification: B66F

Abstract:
A bottle jack having a handle, fluid, and a pump rod and pump cylinder assembly, the pump rod and pump cylinder assembly having a pump longitudinal axis, the bottle jack comprising:a base, the pump rod and pump cylinder assembly being fixedly connected to the base;an anchor rod being located proximate the pump rod and pump cylinder assembly and parallel the pump longitudinal axis;a spring collar yoke being removably and pivotably connected to the handle and to the pump rod and pump cylinder assembly by a pump rod pin, the spring collar yoke for concentrically enclosing the pump rod and pump cylinder assembly, the pump rod pin having a pump rod pin axis positioned perpendicular to the pump longitudinal axis; anda compression spring having a lower spring end and an upper spring end, the compression spring being removably and operatively connected to the base at the lower spring end, the compression spring being removably and operatively connected to the spring collar yoke at the upper spring end for aligning the compression spring, the compression spring concentrically enclosing the pump rod and pump cylinder assembly and being positioned parallel the pump longitudinal axis,the spring collar yoke having a spring pocket configured for removably enclosing and securing the upper spring end of the compression spring, the spring pocket having an inner diameter being sized and configured for receiving the upper spring end of the compression spring and for concentrically enclosing the pump rod and pump cylinder assembly and the compression spring being sized and configured for vertically translating both the compression spring and the spring collar yoke about the pump rod and pump cylinder assembly the spring collar yoke for concentrically aligning the compression spring about the pump rod and pump cylinder assembly.