Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll
Patent
1981-02-09
1984-07-31
Vrablik, John J.
Rotary expansible chamber devices
Working member has planetary or planetating movement
Helical working member, e.g., scroll
418142, 291564R, 277204, 277236, F01C 102, F01C 1908, B23P 1506, F16J 904
Patent
active
044627718
ABSTRACT:
A wrap element and tip seal are disclosed for use in fluid apparatus of the scroll type which include a wrap element having a groove disposed within its tip surface of spiroidal configuration generally conforming to that of the wrap element. A tip seal is disposed within the groove and comprises a relatively rigid strip of material having been wound about its longitudinal axis into a spiroidal configuration generally conforming to that of the groove, the strip of material having a cross section taken in a plane substantially perpendicular to its longitudinal axis wherein at least the radially outer surface thereof is convex in a radially outward direction. This configuration for the tip seal has the advantage that it may be formed using conventional winding techniques wherein a certain amount of "twist" about the longitudinal axis of the strip of material is normally encountered.
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patent: 4290497 (1981-09-01), Barnetche
The Gasket, Goetze Gasket and Packing Co., Inc., New Brunswick, N.J., 1944.
Anderson Ronald M.
Ferguson Peter D.
Lewis Carl M.
The Trane Company
Vrablik John J.
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