Abstract: A cast or support assembly includes inner double knit padding material in which the outer layer is woven or knit to have substantial size openings, while the inner layer of the double knit material to be located against the skin of the patient is more closely woven or knit. Additional casting fabric is also provided, with this casting fabric being impregnated with water hardenable material. The outer casting fabric may include openings extending through it, so that the entire cast assembly has ventilation openings allowing air circulation to accomplish rapid drying following wetting of the assembly by sweat, rain, or by swimming, for example.
Type:
Grant
Filed:
January 12, 2005
Date of Patent:
December 16, 2008
Assignee:
Ossur, hf
Inventors:
Tracy E. Grim, Joseph M. Iglesias, Wendy Henderson, Kelly M. Long, Michael Campos, Walter Doubleday
Abstract: An axial gap rotating electrical machine is provided with permanent magnets and cores in a rotor. The permanent magnets are oriented such that magnetization surfaces face in the circumferential direction of the rotor. The cores are arranged alternately with the permanent magnets in the circumferential direction of the rotor. The amount of magnetic flux on the outside in the radial direction of the rotor is made greater than the amount of magnetic flux on the inside in the radial direction of the rotor. As a result, the magnetic flux density at the rotor cores can be made substantially constant in the radial direction of the rotor and torque output with respect to the size of the permanent magnets is improved by preventing magnetic saturation of the cores.