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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 |
| 6737461 | Articles for dynamic load applications A vulcanizate derived from a polymer composition comprising three components exhibits improved hot air aging properties and is useful, for example, for the manufacture of articles subject to dynamic loading, such as belting applications. The first component is a pol... | 05/18/2004 |
| 6540068 | Rim assembly for a roller assembly for use with cargo mover systems A rim assembly for a roller assembly and method of forming a rim assembly for cargo mover systems are disclosed. Various steps and construction details are developed for affecting the response of the rim assembly to operative conditions. In one detailed e... | 04/01/2003 |
| 6540629 | Flexible idler An idler having a flexible member. The flexible member comprises a rubber or elastomeric material. The flexible member also defines a gas chamber. The spring rate of the flexible member is a function of the flexible material and the size of and pressure i... | 04/01/2003 |
| 6168544 | Pulley lagging A lagging material for application to the surface of a pulley, said material being integrally formed in elongate strip form and having an upper surface including a plurality of discrete nodules extending therefrom and arranged regularly or randomly accord... | 01/02/2001 |
| 6092639 | Driven wheel passenger conveyor A driven terminal for a passenger conveyor for transferring passenger or luggage. The driven terminal according to the present invention includes a pair of rotating plates mounted on both ends of a rotating shaft, an outer wheel forcibly contacted with th... | 07/25/2000 |
| 5857136 | Belt transport device and belt fixing device A belt fixing device of a type gripping and transporting a recording member bearing an unfixed toner image between an endless belt and a back-up member to fuse the unfixed toner image on the surface of the recording member and comprising a fixing/drive ro... | 01/05/1999 |
| 5610217 | Ethylene-alpha-olefin belting Elastomeric compositions for incorporation in articles subject to dynamic loading, comprising an ethylene-alpha-olefin elastomer which is reinforced with a filler and a metal salt of an -ଲ-unsaturated organic acid. This composition is cured u... | 03/11/1997 |
| 5453056 | Belt pulley A belt pulley with a substantially cup-shaped profile that is delimited on one side, in at least the axial direction, by an integrally shaped-on rim flange is disclosed. The rim flange is configured as the hub ring of a torsional vibration damper, the hub... | 09/26/1995 |
| 5346438 | Belt guide pulley There is provided a clam shell shaped belt guide pulley having first and second curved halves which are hinged together. Each pulley half has curved inner and outer surfaces. The pulley is adapted to be placed on a large diameter shaft without the need to... | 09/13/1994 |
| 5346181 | Hauling sheave with cleats A hauling block 20 having a sheave 30 comprising two identical halves 32 and 34. The hauling surfaces 40 and 42 of the sheave 30 carry outwardly extending, cleat receiving pockets 54. Reinforced cleats 50 are seated in the pockets 54 and releasably fasten... | 09/13/1994 |
| 5281189 | Crowned pulley for a belt conveyor An improved construction for a crowned and lagged pulley for a belt conveyor includes a roller tube having a central portion and two outer end portions. A pair of circumferentially extending grooves are formed in the outer surface of the roller tube betwe... | 01/25/1994 |
| 5254045 | Flat belt driving device A roller for running a flat belt is formed at its surface by an elastic body. Short fibers are mixed with the elastic body. The short fibers are averagely oriented in a direction radially or peripherally inclined to the roller with a small angle and protr... | 10/19/1993 |
| 4878411 | Band saw wheel A band saw wheel and blade combination including a pulley having a peripheral groove and a tire mated with and received within the groove. The tire has an inner diameter greater than the inner diameter of the groove to be free floating within the groove. ... | 11/07/1989 |
| 4855174 | Lagging-reinforced structure The present invention discloses a lagging-reinforced structure which comprises a substrate, a lining layer of a flexible and resilient material coated on the upper surface of the substrate, a plurality of laggings embedded in the lining, the laggings havi... | 08/08/1989 |
| 4832669 | Tab and recess lagging segment for pulley and method of mounting the same A lagging segment having a leading edge in the form of tabs and recesses and a trailing edge in the form of tabs and recesses whereby adjacent segments can be welded to the face of a pulley without damaging elastomer by placing adjacent segments around th... | 05/23/1989 |
| 4718544 | Flexible lagging strips for drum pulleys A replaceable lagging structure, for a conveyor pulley, and specifically to a flexible lagging structure useable and adaptable on different size pulley drums. The structure preferably has a pair of parallel, elongated, arc shaped metal plates which are co... | 01/12/1988 |
| 4710152 | Crank damper pulley structure for the internal combustion engine of a car A crank damper pulley structure of an internal combustion engine of a car in which the hub of a pulley, which is removably fixed to the tip of the engine crank shaft and transmits power to auxiliary machinery, such as an alternator, has therearound a damp... | 12/01/1987 |
| 4589861 | Simple recording head drive having virtually zero backlash or slippage A non-deformable metallic pulley is coated with a urethane layer having a thickness of about 0.0005 inches. A drive belt, coupled to a recording head, is positioned over the urethane layer of the pulley, which in turn is driven by a stepping motor. The dr... | 05/20/1986 |
| 4439173 | Replaceable lagging for drum-type pulleys A lagging face for a drum-type pulley comprising a plurality of separate segments having an inner rigid shell conforming to the surface of the pulley. A facing is bonded to the outer surface of the shell and the shell is welded to the drum. The shell over... | 03/27/1984 |
| 4359122 | Off road vehicles An off road vehicle of the kind having fluid-distensible bag rollers for supporting the vehicle load uses bag rollers which are constructed to afford maximum flexibility in both the walls and tread and which are also constructed to be dynamically balanced... | 11/16/1982 |
| 4233853 | Belt pulley A belt pulley which is designed for marketing as a group of standard component parts adapted for customized assembly by the user to meet individual pulley requirements as to size, load capability, etc. The parts include a shaft, a plurality of disc-shaped... | 11/18/1980 |
| 4083247 | Apparatus for reducing noise of a carrier roller A noise reduction apparatus for a carrier roller in a crawler tractor, which includes first and second dimpled, annular guard members, each having a steel plate with a noise-absorbing member bonded thereto, and a third annular guard member having a noise-... | 04/11/1978 |
| 3989314 | Wheel of track assembly of a crawler type vehicle A wheel of a track assembly of a crawler type vehicle has a resilient contacting element fixed about the wheel rim by first and second anchors. The anchors are slidably movable along angular end portions of a rim opening for securing the contacting elemen... | 11/02/1976 |
| 3961736 | Rubber-covered self-centering rolls A self-centering roll includes a body, a first layer of rubber surrounding the body, and a second layer of rubber surrounding the first layer, the rubber on the first layer being softer and of lower density than the rubber in the second layer. Flexible pr... | 06/08/1976 |
| 3958837 | Idler An idler for use in a bulldozer, etc., comprising an idler proper having an annular groove on its peripheral surface and a shock-absorbing member fitted in said annular groove. Thus the shock-absorbing member can be made sufficiently thick to minimize imp... | 05/25/1976 |
