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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 |
| 7311463 | Arrangement for securing a snap ring An arrangement for axially supporting two jointly rotating components (2, 3) by way of a snap ring (6) having two displaceable impacting ends (6a, 6b), which are separated from each other by a peripheral gap (7), and ... | 12/25/2007 |
| 7302818 | Apparatus for locking and unlocking vehicle door In an apparatus for locking and unlocking a vehicle door, an inner cable, with one end connected to a rotor to make a twisting operation in response to the rotation of the rotor of a cylinder lock and the other end connected to a key operation input shaft of a door ... | 12/04/2007 |
| 7128147 | Modular liner hanger A liner hanger having a mechanical coupling between a liner hanger body and one or more cones is disclosed. The cones are coupled to the liner hanger body to resist axial and relative rotational movement without welding the cones to the hanger body, and without the ... | 10/31/2006 |
| 7112905 | Coupling structure for tandem motor A coupling structure for a tandem motor includes two bearing sleeves formed with grooves thereon, a connector and elastic fasteners. The connector has a first end and an opposed second end, and each of the first end and second end is formed with at least one groove.... | 09/26/2006 |
| 6537625 | Concentric finger jointed timber A finger joint for connecting first and second wooden segments includes intermeshing fingers that are concentrically disposed about the center of the end face of the two wooden segments. The fingers may either be independent round protrusions forming rece... | 03/25/2003 |
| 6338601 | Punch rivet, riveted joints produced with it, riveting tool and method of producing a riveted joint A punch rivet (1) has a cutting edge (6) which is arranged on the end face of its rivet shank (2) and is formed in the cutting region by an outer face (5) extending parallel to the axis and a conical inner face (4) of the rivet shank (2). The outer face (... | 01/15/2002 |
| 6296417 | Circlips A circlip (8) comprises a band of material forming an incomplete ring, and has curved bearing surfaces (10, 11) at opposite ends of the major transverse dimension of the band. The major transverse dimension is generally oriented at less than 90°, and pre... | 10/02/2001 |
| 6231265 | Self-aligning subsea latch mechanism A latching assembly includes a first mating portion and a second mating portion disposed adjacent and rotationally restrained relative to the first mating portion. A first cam member having a first cam profile is mounted on the first mating portion. A sec... | 05/15/2001 |
| 5570970 | Tube and connector arrangement for a lighting fixture A tube and connector arrangement for a lighting fixture, including a tube having two symmetrical rails raised from the inside wall of the tube along the length, and a connector having a longitudinal center through hole for passing the electric wire of the... | 11/05/1996 |
| 5358352 | Swivel joint for a support arm adjustably receiving an appliance, lighting fixture or the like The swivel joint for a support arm adjustably receiving an appliance, lighting fixture or the like, in which hoses, cables, lines or the like can be passed through the support arm and the swivel joint and can be fixed to the swivel joint and to the suppor... | 10/25/1994 |
| 5328289 | System for positioning and retaining an article of modular furniture A system for positioning and retaining in place an article of modular furniture in the form of a slab upon the upper face of a rest block comprises an intermediate piece and a fastener. The intermediate piece has a horizontal plate an arcuate heel extendi... | 07/12/1994 |
| 5033904 | Tubular dowel system A dowel system for securing in a generally abutting relationship two parts or pieces of material having facing surfaces and preformed, aligned annular recesses. The dowel system includes a tubular body having sidewalls which are thinner near the middle of... | 07/23/1991 |
| 4919561 | Ceramic fitting for tubular furniture construction An ornamental ceramic fitting is mounted between two spaced, confronting, axially aligned, tubular members. The distance between the confronting ends of the tubular members is less than the corresponding axial length of the ceramic fitting. The ceramic fi... | 04/24/1990 |
| 4774733 | Red frame A bed frame ideally suited for supporting a water mattress or the like comprises first and second frame members including vertically disposed and horizontally spaced pedestals having a pan portion at the upper end thereof. The first and second frame membe... | 10/04/1988 |
| 4738033 | Rapid change holder for probe pins A mount on the probe head of a coordinate measuring machine is described. For rapid change of a probe pin carrier, accommodating at least one probe pin, which is drawn against a bearing which clearly determines the position of the probe pin carrier in the... | 04/19/1988 |
| 4578910 | Elevated floor panel system A system for interlocking the edges and corners of adjacent panels of a pedestal supported, elevated floor construction. Edge and corner clamp units are put in place after set-up of the panels. The edge clamp units include a lower elongated element which ... | 04/01/1986 |
| 4476642 | Digging tooth and holder assembly A digging tooth is removably received within a tooth receiving holder. The holder is attached to a digging apparatus, such as a trencher machine, for example. The holder includes a socket within which a shank of the tooth is removably received. The socket... | 10/16/1984 |
| 4435104 | Ring wedge joint for solid or laminated wood sections A ring wedge joint for interconnecting solid or laminated wood sections, such as bar-shaped or rod-shaped sections used as chair parts, tool handles, window frame sections and the like is formed by alternating ring wedges and ring wedge grooves on the end... | 03/06/1984 |
| 4208971 | Loading pallet A throw-away loading pallet made from fibre board and having cardboard tubular supports serving as feet, the supports being interconnected by fibre board strips to strengthen them. The tubular supports at one end are secured to the pallet and at their opp... | 06/24/1980 |
| 4190479 | Method of producing a joint capable of transmitting high torque A method for bonding a tubular shaft to an end fitting to produce an assembly wherein the shaft and the end fitting are in axial alignment and which is capable of transmitting high torque, said method employing an end fitting provided with a mating sectio... | 02/26/1980 |
| 4085916 | Releasable locking device A releasable locking device comprising a first and a second member movable into and out of engagement with each other, and one or more latch elements arranged within an inner space defined by said members when engaged. The latch elements are freely movabl... | 04/25/1978 |
| 3937585 | Partially rotated fastener A partially rotated arrangement fastens parts together in nearly perfect alignment. The fasteners utilize semicircular rings which are rotated about the circular axis until each ring lies partly in each of two adjacent parts. The parts so joined together ... | 02/10/1976 |
