Metal working – Means to assemble or disassemble – Means to assemble electrical device
Patent
1993-08-12
1996-02-20
Vo, Peter
Metal working
Means to assemble or disassemble
Means to assemble electrical device
29596, 29734, H02K 1506
Patent
active
054918863
ABSTRACT:
An inner diameter block for blocking the inner diameter of windings of an electric motor includes a plurality of first segments and a plurality of second segments arranged in an alternating manner. The segments are movable radially outwardly to block the inner diameter of the windings. One of the segments is generally pie shaped, having an arcuate outer surface and ears extending circumferentially to define part of the outer surface. These first segments define gaps which receive second segments. The first and second segments have sloping inner surfaces which define a core in which an expanding cone is received. The cone, when moved axially in the core, urges the second segments radially outwardly. The second segments then force the first segments radially outwardly. The interaction of the second segments with the ears of the first segments provide a substantially continuous, gap-free outer surface to the inner diameter block at all stages of expansion.
REFERENCES:
patent: 3874056 (1975-04-01), Peters
patent: 4003116 (1977-01-01), Bale
patent: 5056212 (1991-10-01), Scherer
patent: 5237740 (1993-08-01), Hayashi et al.
Kieffer Vernon E.
Kliethermes Andrew J.
Emerson Electric Co.
Vo Peter
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