Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1981-03-02
1984-03-13
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
291564R, 291568R, 29522R, F01C 102, F01C 2108, B23P 1100
Patent
active
044364954
ABSTRACT:
A two-piece scroll member, for use in scroll apparatus, is fabricated by seating a separately formed involute wrap in an involute channel cut in the end plate. The channel has at least one reentrant groove and the surface of the wrap is configured to engage the groove. Locking means are coined into the groove to rigidly affix the wrap to the end plate.
REFERENCES:
patent: 1345678 (1920-07-01), Kasley
patent: 1470499 (1923-10-01), Steenstrup
patent: 3994635 (1976-11-01), McCullough
Arthur D. Little Inc.
Hammond Richard J.
Vrablik John J.
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