Abstract: The present invention is directed to a magnetic vestibular stimulation (MVS) system for rehabilitation of subjects with vestibular and balance disorders. The magnetic vestibular stimulation system includes a magnet and a cooling system. In some embodiments, the subject wears video goggles in order to stimulate the subject to orient to a virtual reality. The subject can lie, sit or stand in or near a strong magnetic field generated by the system. The magnetic field generated by the system stimulates the vestibular system to counteract the inherent imbalance created by a naturally-occurring vestibular disorder. Particularly important, the direction and amplitude of vestibular stimulation can be easily manipulated by altering the orientation and distance of the head relative to the magnetic field vector. Thus, MVS can be precisely tailored to a patient's specific pattern of vestibular disturbance.

Abstract: The present invention is directed to a magnetic vestibular stimulation (MVS) system for rehabilitation of subjects with vestibular and balance disorders. The magnetic vestibular stimulation system includes a magnet and a cooling system. In some embodiments, the subject wears video goggles in order to stimulate the subject to orient to a virtual reality. The subject can lie, sit or stand in or near a strong magnetic field generated by the system. The magnetic field generated by the system stimulates the vestibular system to counteract the inherent imbalance created by a naturally-occurring vestibular disorder. Particularly important, the direction and amplitude of vestibular stimulation can be easily manipulated by altering the orientation and distance of the head relative to the magnetic field vector. Thus, MVS can be precisely tailored to a patient's specific pattern of vestibular disturbance.

Abstract: A tool, such as a hole saw, including an open end cap geometry is provided. The end cap includes spokes extending between a hub and a rim. A plurality of openings are defined between the spokes, hub and rim. The area of the openings is substantially large relative to the area of the end cap such that the end cap is relatively lightweight and provides access into the hole saw for debris removal. The spokes are shaped and positioned to provide strength to the end cap.

Abstract: The invention provides a one piece shingle for use on roof ridges and hips. Shingles of the invention are preferably formed from synthetic materials and preferably comprise a blend of high and low molecular weight polyethylene resins. The unique blend of materials provides a shingle that is both strong while retaining sufficient flexibility to permit the shingle to bend to accommodate a variety of pitches at a ridge or hip. Unique features of the shape and structure of the shingle also make it particularly suited to hip and ridge applications. Furthermore, methods of manufacturing hip and ridge shingles are also disclosed.

Abstract: The invention provides a one piece shingle for use on roof ridges and hips. Shingles of the invention are preferably formed from synthetic materials and preferably comprise a blend of high and low molecular weight polyethylene resins. The unique blend of materials provides a shingle that is both strong while retaining sufficient flexibility to permit the shingle to bend to accommodate a variety of pitches at a ridge or hip. Unique features of the shape and structure of the shingle also make it particularly suited to hip and ridge applications. Furthermore, methods of manufacturing hip and ridge shingles are also disclosed.