Pneumatic vane-type motor with bearing ring for vane tips

Details Pneumatic vane-type motor with bearing ring for vane tips Pneumatic vane-type motor with bearing ring for vane tips

1977-05-05

1978-10-17

Vrablik, John J.

Rotary expansible chamber devices

Moving cylinder

Rotating

418270, 308 9, 308DIG1, F01C 100, F01C 1302, F01C 2102, F16C 3500

Patent

active

041206231

ABSTRACT:
A pneumatically operated vane-type motor for driving medical or dental handpieces. A stator housing forms a rotor chamber in which a rotor is mounted, the rotor having axial slots in which rotor vanes are radially movably mounted. The rotor rotates about an axis which is parallel to but spaced from the axis of a cylindrical inner surface of the housing which is circular in cross-section. A co-axial bearing ring is rotatably mounted in the inner surface of the housing, and the inner surface of the bearing ring is engaged by the outer ends of the vanes.

REFERENCES:
patent: 2324903 (1943-07-01), Beckman
patent: 2590729 (1952-03-01), Scognamillo
patent: 2918877 (1959-12-01), Woodcock
patent: 2969743 (1961-01-01), Menon
patent: 3158002 (1964-11-01), Spillmann
patent: 3210848 (1965-10-01), Bizzigotti
patent: 3306375 (1967-02-01), Macks
patent: 3309965 (1967-03-01), Weickgenannt
patent: 3437009 (1969-04-01), Goodwyn
patent: 3539281 (1970-11-01), Kramer
patent: 3582243 (1971-06-01), Rhine
patent: 4005951 (1977-02-01), Swinkels

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