Abstract: A ring installation device for installing a ring to a part includes an inner mandrel which is tapered in order to expand the ring. An outer mandrel is tubular such that the inner mandrel is received within the outer mandrel and such that the inner mandrel is moveable within the outer mandrel along an axis. A ring stripper is tubular such that the outer mandrel is receive within the ring stripper and such that the outer mandrel is moveable within the inner mandrel along the axis. The inner mandrel is moveable along the axis relative to the outer mandrel and the ring stripper from an inner mandrel first position to an inner mandrel second position. The outer mandrel is moveable by the inner mandrel along the axis relative to the ring stripper from an outer mandrel first position to an outer mandrel second position.

Abstract: A ring installation device for installing a ring to a part includes an inner mandrel which is tapered in order to expand the ring. An outer mandrel is tubular such that the inner mandrel is received within the outer mandrel and such that the inner mandrel is moveable within the outer mandrel along an axis. A ring stripper is tubular such that the outer mandrel is receive within the ring stripper and such that the outer mandrel is moveable within the inner mandrel along the axis. The inner mandrel is moveable along the axis relative to the outer mandrel and the ring stripper from an inner mandrel first position to an inner mandrel second position. The outer mandrel is moveable by the inner mandrel along the axis relative to the ring stripper from an outer mandrel first position to an outer mandrel second position.

Abstract: A new and useful device for assisting and training the hyperextension of plantar flexion of the ankle which can be operated by a single user, is easy to use, allows for variable adjustment of the angle of plantar flexion, is handheld, and can be used in a variety of applications and physical disciplines. This device is believed to be useful in the athletic and physical arts disciplines such as ballet. The device comprises a handle that is rotationally connected to a plantar attachment by way of a central axis rod. When connected together, the plantar attachment rotates around the central axis rod, thereby creating angles relative to the handle. The device can be locked into a desired angle by the insertion of a locking pin prior to use. The user places her foot on the sole portion of the plantar attachment, fixes an attaching means around her foot, and places her heel into a calcaneal well on the handle.