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An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
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| Number | Title | Issue Date |
| 6601558 | Cylinder head configuration A cylinder head assembly for use in a flat head style internal combustion engine. A valve for use in the head has a cup portion above the face of the valve. The cup portion of the valve moves longitudinally in a sleeve or liner in the head of the engine.... | 08/05/2003 |
| 5701930 | Modular valve assembly A pre-assembled valve mechanism for use in valve controlled internal combustion engines and the like which is constructed and arranged to be installed and removed quickly as a unitary module with minimum effort and expenditure of time; the module comprisi... | 12/30/1997 |
| 4909202 | Frustoconical valve stem sealing element A valve stem seal assembly includes a rigid cylindrical shell and an annular resilient seal body contained entirely within the shell. Integral to the seal body is a frustoconical sealing element adapted to engage a valve guide of an internal combustion en... | 03/20/1990 |
| 4341185 | Fluid-cooled valve housing for an engine having two exhaust valves per cylinder A valve housing for an internal combustion engine having more than one intake or exhaust valve per cylinder includes complementary upper 14 and lower 16 members, with a transverse junction plane 17 intersecting a longitudinal partition 10 which divides an... | 07/27/1982 |
| 4182282 | Mushroom valve housing with fluid coolant circulation for internal combustion engines The invention provides a mushroom valve housing comprising a cage (1) and a guide (2), Cage (1) comprises legs (3, 4, 5, 6) supporting a valve seat (7) containing an annular space (8). Guide (2) has an annular cavity (9) with two sections (9a, 9b) communi... | 01/08/1980 |
| 4000730 | Valve cage structure for internal combustion engines, particularly adapted for fluid cooling To prevent differential deformation and damage, upon operation of large internal combustion engines, such as large Diesel engines, the cage structure is formed with a central valve seat and a lateral passage for inlet and exhaust gases to the cylinder of ... | 01/04/1977 |
| 3963016 | Valve chests An overhead valve chest for an internal combustion engine with a cylindroconical portion adjacent to the bottom seating of the chest within the cylinder-head and comprising a sealing ring overlapping said cylindro-conical portion and mounted in a groove t... | 06/15/1976 |
