Scroll member and method of forming a scroll member
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United States of America Patent
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Jun 16, 1992
Issued Date -
N/A
app pub date -
Oct 21, 1991
filing date -
Aug 3, 1990
priority date (Note) -
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status (Latency Note)
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Abstract
A scroll member is formed using a scroll profile cutter including a first portion generating a diameter equal to the desired width between scroll involute flanks, where the first portion also is of a length determined by a distance between the tip of the cutter and a second portion of greater diameter. The length of the first portion determines the scroll wrap height. Radii are provided at both ends of the first portion of the scroll profile cutter so that a fillet is generated at the base of the corresponding scroll wrap and a radius is generated at the edges of the scroll wrap tip to improve the strength of the scroll wrap and to remove sharp corners which could burr or interfere with the base of the opposing scroll wrap.
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