Rotary vane engine with orbiting inner and outer members
Patent 4005951 Issued on February 1, 1977. Estimated Expiration Date: 
February 1, 1994. 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.
February 1, 1994. 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 3358653 3381668 3812828 InventorAssigneeApplicationNo. 446478 filed on 02/27/1974US Classes:418/61.1, Circumferentially spaced working chambers418/256, Encompassing moving member interconnects plural vanes418/63With relatively movable partition memberExaminersPrimary: Vrablik, John J.Foreign Application Priority Data1973-03-01 AUAbstractAn engine of the rotary or orbital type having a piston member mounted to move eccentrically within a housing with a plurality of vanes disposed between the piston member and the housing to form a number of chambers which vary in volume as a piston member orbits within the housing. Each vane is supported in the piston member or housing for radial sliding movement as the piston member orbits and the vanes are mechanically controlled between respective sets of parallel surfaces which engage radially spaced portions of the vane to prevent radial movement of the vane relative to these surfaces while allowing lateral movement of the vanes along the surfaces as the piston member orbits. | |
