Rotary piston mechanism
Patent 3996901 Issued on December 14, 1976. Estimated Expiration Date: 
December 14, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
December 14, 1993. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 1277018 2871831 3199496 3285189 3301228 3314401 3364907 3441007 3690791 3771501 InventorsApplicationNo. 445930 filed on 02/26/1974US Classes:123/242, Planetating rotor418/61.3Rotor has one less lobe than cylinder (i.e., Gerotor type)ExaminersPrimary: Croyle, Carlton R.Assistant: Koczo, Michael Jr. Attorney, Agent or FirmAbstractA rotary piston mechanism for internal combustion engines, fluid motors, pumps and the like has an outer body enclosing a chamber that is defined by three equal curvilinear walls that circumscribe the chamber axis and define an equilateral triangle in a plane perpendicular to the chamber axis, the walls being convex with respect to the axis, and a generally elongated rotor confined in the chamber of length equal to the span of the chamber along a bisector of any of the angles of the equilateral triangle defined by the chamber walls, the rotor being pivotally supported to rotate about a rotor axis which is parallel to the chamber axis and moves around the chamber axis over a closed path, the sense of rotation of the rotor on the rotor axis being opposite to the sense of rotation of the rotor axis around the chamber axis. | |
