Scroll member for use in a positive displacement device, and a m

Details Scroll member for use in a positive displacement device, and a m Scroll member for use in a positive displacement device, and a m

1988-03-18

1989-10-24

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 56, 291568R, 264250, 264255, 264293, F01C 104, F04C 1804, B28B 124, B28B 718

Patent

active

048758396

ABSTRACT:
A scroll member comprising a metallic end plate having a spiroidal groove on one side thereof, and a through-hole communicating with the groove, and a resin wrap joined to the groove of the end plate so as to protrude from the surface of the end plate. The wrap being formed by injection molding, and the through-hole and the groove being filled with part of the wrap.

REFERENCES:
patent: 2841089 (1958-07-01), Jones
patent: 4487560 (1984-12-01), Uchikawa et al.
patent: 4558997 (1985-12-01), Sakata et al.
patent: 4673339 (1987-06-01), Hayano et al.
patent: 4696630 (1987-09-01), Sakata et al.
patent: 4708607 (1987-11-01), Hayano et al.

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