Piston apparatus
Patent
·
OSTI ID:5819669
This patent describes a piston apparatus comprising: (a) a first pair of spaced-part cylinders aligned along a cylinder axis; (b) a pair of pistons, each piston being slidably received in one of the cylinders for reciprocation along the axis; (c) a pair of spaced-apart crank members on opposite sides of the cylinder axis, the crank members having parallel axes of rotation; (d) a first gear wheel, a second gear wheel and a third gear wheel, (e) a crank connecting member having a longitudinal axis which is perpendicular to the cylinder axis and having opposite ends. (f) a piston connecting member interconnecting the pair of pistons and having an aperture extending perpendicular to the cylinder axis. The crank connecting member is slidably received in the aperture to permit relative movement between the piston connecting member and the crank connecting member along the longitudinal axis of the crank connecting member. The piston connecting member and the crank connecting member are carried together for movement parallel to the cylinder axis.
- Assignee:
- NOV; NOV-87-083398; EDB-88-001629
- Patent Number(s):
- US 4694785
- OSTI ID:
- 5819669
- Country of Publication:
- United States
- Language:
- English
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