Expansible chamber devices – Oscillating working member or cylinder therefor
Patent
1978-03-09
1980-03-25
Maslousky, Paul E.
Expansible chamber devices
Oscillating working member or cylinder therefor
92122, 60567, F01C 900, F15B 700
Patent
active
041944372
ABSTRACT:
A base structure defining a generally hemispherical seat and a generally spherically shaped body mounted in seating engagement with the seat. The base defines a pair of diametrically opposed guide channels each of which receives a portion of a different one of a pair of trunnions, another portion of each trunnion being received in a first circumferentially extending channel in the body. The body has a second circumferentially extending channel at right angles to the first circumferentially extending channel for sliding and rotating reception of a portion of each of a pair of second trunnions that have other portions each journaled in the base between respective ends of the guide channels and in diametrically opposed relationship. The channels in the body each have circumferentially spaced inner ends that cooperate with respective pairs of the trunnions to define opposite ends of circumferentially extending fluid chambers that longitudinally expand and contract responsive to rotary movements of said body on its center and relative to the base structure. The base structure defines fluid passageways for connection to a source of fluid under pressure and each communicating with a different one of said fluid chambers. A drive arm projects radially outwardly from the body for imparting rotary movements of the body to a device to be driven.
REFERENCES:
patent: 2346820 (1944-04-01), Cosler
patent: 2975766 (1961-03-01), Henry
patent: 3583283 (1971-06-01), Cunningham et al.
patent: 3973469 (1976-08-01), Humen
patent: 4045958 (1977-09-01), Wells
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