Inductor devices – Coil or coil turn supports or spacers – Flexible filament – strip or sheet insulation
Patent
1995-06-27
1998-02-10
Gellner, Michael L.
Inductor devices
Coil or coil turn supports or spacers
Flexible filament, strip or sheet insulation
336206, 336219, H01F 2730, H01F 2724
Patent
active
057173737
ABSTRACT:
An article of insulation, especially adapted for insulating corners, is provided. The article is constructed in the form of an elongated flexible sheet capable of sustaining and retaining at least one longitudinal fold therein and having generally a beginning end and a closing end and first and second, generally opposite longitudinal sides thereof. Each longitudinal side has a plurality of protrusions or tabs extending outwardly therefrom along the length of each side, with each protrusion being separated from adjacent protrusions such that, upon folding the sheet longitudinally along its centerline to form overlapping halves folded upon one another, the protrusions along the length of the first side overlap the separations along the length of the second side, and vice versa. The article has a second fold extending longitudinally thereof along the bases of the protrusions such that the overlapping protrusions form substantially a right angle with the remaining portion of the sheet. This folded, right-angle construction can be shaped into a desired curvilinear configuration. The sheet may be constructed of an electrically insulating material such as a cellulose paper or polyaramid paper, a coated fabric or a plastic layer or film. A vulcanized fibre paper is also suitable. The insulator is adaptable to fit the corners, both the outside diameters (OD) and the inside diameters (ID), of a rectangular or square cross-sectioned toroid, as well as a cylinder, or tubular constructions in general. The insulation is especially suited to protecting the corners of electromagnetic toroidal coils.
REFERENCES:
patent: 4646803 (1987-03-01), Hanaoka
patent: 5488344 (1996-01-01), Bisbee
Gellner Michael L.
Mai Anh
Uebler, P.A. E. Alan
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