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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 |
| 7814871 | Self-priming portable device A portable powered device such as a tool, comprising a housing within which is defined a combustion chamber (8) for combustion of a mixture of fuel and a combustion-supporting gas, which mixture is compressed so as to be subjected to a pressure in excess of t... | 10/19/2010 |
| 7591236 | Venting check valve for combustion nailer A combustion nailer configured for reducing intake of contaminated air during operation, includes a combustion engine having a cylinder with a piston reciprocating between a prefiring position and a fully extended position, and at least one air port in the cylinder ... | 09/22/2009 |
| 7490582 | Combustion type power tool having fin for effectively cooling cylinder A combustion-type power tool includes a housing having one end, a head portion disposed at the one end, and a cylinder disposed in the housing, the cylinder being formed with an exhaust hole. A piston is reciprocally movable in the cylinder, and a combustion-chamber... | 02/17/2009 |
| 7484481 | Combustion-type power tool having switch protection arrangement A main switch section is accommodated in a trigger. The trigger provided on the handle through a spring. The handle is formed with a recess to which one end of the spring is seated, so that the trigger is normally urged toward the lower side of the combustion-type n... | 02/03/2009 |
| 7455036 | Combustion type power tool having fin in low turbulent combustion region within combustion chamber A combustion-type power tool includes a housing, a head portion, a cylinder disposed in the housing, and a push lever. A piston is reciprocally movable in the cylinder, and a combustion-chamber frame is disposed in the housing and abuttable on the head portion to pr... | 11/25/2008 |
| 7444963 | Combustion power tool It is an object of the invention to provide a reliable ignition by a spark plug in a combustion power tool. Representative combustion power tool may comprise a combustion chamber, a gas supply section, a single spark plug, an ignition control device, a cylinder conn... | 11/04/2008 |
| 7431185 | Fan control for combustion-powered fastener-driving tool based on firing rate A combustion-powered fastener-driving tool includes a combustion-powered power source; at least one fan associated with the power source during operation; and a control system operationally associated with the power source and connected to the at least one fan for a... | 10/07/2008 |
| 7424870 | Combustion-engined setting tool A combustion-engined setting tool for driving fastening elements such as, e.g., nails, bolts, pins in a constructional component includes a combustion chamber (13) for combusting an oxidant-fuel mixture, elements for closing the inlet opening (15) and ... | 09/16/2008 |
| 7387092 | Combustion-type power tool having cooling arrangement A combustion-type power tool includes a housing, a cylinder, a cylinder head, a combustion chamber frame, and a rotatable fan. The combustion chamber frame including a base section, a head section abuttable on the cylinder head to provide a combustion chamber when t... | 06/17/2008 |
| 7383974 | Combustion chamber control for combustion-powered fastener-driving tool A combustion-powered fastener-driving tool includes a combustion-powered power source, a valve sleeve reciprocable relative to the power source between a rest position and a firing position, and a lockout device in operational proximity to the valve sleeve and confi... | 06/10/2008 |
| 7377413 | Pneumatic nail gun A pneumatic nail gun includes a gun body, a movable cylinder, a piston and a slidable sleeve valve. The gun body has a main air housing collecting a compressed high pressure air with a constant pressure, and a trigger at one end of the main air housing driving the h... | 05/27/2008 |
| 7341171 | Fan control for combustion-powered fastener-driving tool A combustion-powered fastener-driving tool includes a combustion-powered power source, at least one fan for associated with the power source, at least one temperature sensing device in operational proximity to the power source and a control system operationally asso... | 03/11/2008 |
| 7316209 | Combustion type power tool having buffer piece A combustion-type power tool includes a housing, a cylinder disposed, a piston, and a cylinder head disposed at an end of the housing and having a wall portion extending in a direction perpendicular to an axial direction, the wall portion having an opening. A motor ... | 01/08/2008 |
| 7308997 | Combustion-operated setting tool A combustion-operated setting tool for driving fastening elements in a constructional component includes a device (30) for adjusting setting energy applied to a setting piston (15) axially displaceable in a guide space (4) of a piston guide (... | 12/18/2007 |
| 7305941 | Combustion type power tool having motor suspension arrangement A combustion-type power tool includes a frame comprising a housing having one end, and a head portion disposed at the one end, and a piston reciprocally movably disposed in the housing. A combustion chamber is provided in the housing and has one end movable toward a... | 12/11/2007 |
| 7303104 | Power generator of nail drive A power generator of a nail drive comprises a body; a cylinder in the body; a plug in the cylinder; a plug in the cylinder; and a magnetic element on the plug. The movement of the plug will drive the magnetic element to pass through the induction coil so that the in... | 12/04/2007 |
| 7299963 | Temperature sensor for combustion nailer A combustion nailer includes a housing substantially enclosing a combustion engine having a cylinder head, a control unit associated with the housing for controlling operation of the tool, at least one printed circuit board electrically connected to the control unit... | 11/27/2007 |
| 7293684 | Pneumatic nail gun A pneumatic nail gun includes a gun body with a trigger, collecting a compressed high pressure air with a constant pressure, a movable cylinder installed in the gun body, a hitting piston disposed in the cylinder, a valve ring formed outside the cylinder, a head val... | 11/13/2007 |
| 7284511 | Combustion-engined setting tool A combustion-engined setting tool for driving fastening elements in a constructional component end including a combustion chamber (13) for combusting a gas mixture, an inlet/outlet device (40) for opening the combustion chamber (13) in its first... | 10/23/2007 |
| 7281502 | Powered devices Disclosed is a self-priming portable powered device such as a tool, comprising a housing within which are defined a priming combustion chamber and a main combustion chamber, within which chambers during operation of the device there is a combustion of a combustible ... | 10/16/2007 |
| 7275673 | Combustion-engined setting tool A combustion-engined setting tool for driving fastening elements in a constructional component, includes a guide cylinder (12), a setting piston (11) displaceable in the guide cylinder (12), a combustion chamber sleeve (15) displaceably a... | 10/02/2007 |
| 7275505 | Thermal regulation control for combustion nailer A combustion nailer includes a combustion-powered power source, at least one fan associated with the power source, at least one temperature sensor in operational proximity to the power source for sensing power source temperature, and a control system operationally a... | 10/02/2007 |
| 7267257 | Combustion-engined setting tool A combustion-engined setting tool for driving fastening elements in a constructional component includes a guide cylinder (12), adjoining the combustion chamber (14) and in which a setting piston (11) is displaceable, a press-on element (30 | 09/11/2007 |
| 7263955 | Combustion powered linear actuator The present invention provides robotic vehicles having wheeled and hopping mobilities that are capable of traversing (e.g. by hopping over) obstacles that are large in size relative to the robot and, are capable of operation in unpredictable terrain over long range.... | 09/04/2007 |
| 7261070 | Linear fluid engine A linear fluid engine includes a power transfer cylinder that is driven by combustion of fuel in a combustion cylinder to pressurize a power transferring fluid. Some of the power transferring fluid is used to power a subsequent compression stroke in the combustion c... | 08/28/2007 |
| 7261071 | Combustion type power tool facilitating cleaning to internal cleaning target A combustion-type power tool including a housing, a combustion chamber provided in the housing, an ignition plug exposed to the combustion chamber, a cleaning passage communicatable with the combustion chamber, and a shut-off unit provided in the cleaning passage. | 08/28/2007 |
| 7258086 | Four-cylinder, four-cycle, free piston, premixed charge compression ignition, internal combustion reciprocating piston engine with a variable piston stroke A four-cycle, four-cylinder, premixed charge compression ignition internal combustion reciprocating free piston engine with a variable piston stroke and a compression ratio that varies as needed to provide charge ignition, to offer the potential of higher efficiency... | 08/21/2007 |
| 7246576 | Combustion-engined setting tool A combustion-engined setting tool for driving fastening elements such as, e.g., nails, blots, etc. in constructional components includes a combustion chamber (13) for combusting therein an oxidant-fuel mixture, a turbulence generating element, arranged in the... | 07/24/2007 |
| 7243829 | Combustion power tool A combustion power tool having a first combustion chamber, a second combustion chamber, an igniter, a partition, and a driving mechanism. Flammable gas is introduced or charged into the first and second combustion chamber. The igniter is disposed in the first combus... | 07/17/2007 |
| 7237515 | Combustion-type power tool having cooling arrangement A combustion-type power tool having a cooling arrangement for cooling a cylinder. The tool includes a housing, a cylinder head at one end of the housing, a push lever disposed at another end of the housing, and a combustion chamber frame including a base section and... | 07/03/2007 |
| 7225768 | Combustion type power tool having buffer piece A combustion type power tool having an arrangement avoiding direct striking of a drive shaft against a cylinder head when combustion pressure is exerted. A motor is disposed at the cylinder head and includes a motor body and a drive shaft extending in an axial direc... | 06/05/2007 |
| 7210431 | Combustion-type power tool with exhaust gas flow regulating rib A combustion-type power tool includes a cylinder and a combustion chamber frame disposed to surround the cylinder and movable along the cylinder. A partition wall divides an inner space of an outer frame into a first space in which the cylinder and the combustion ch... | 05/01/2007 |
| 7201301 | Exhaust system for combustion-powered fastener-driving tool A combustion-powered fastener-driving tool includes a combustion-powered power source including a cylinder defining a path for a reciprocating piston and an attached driver blade, the piston reciprocating between a pre-firing position achieved prior to combustion an... | 04/10/2007 |
| 7188590 | Combustion-engined setting tool A combustion-engined setting tool for driving fastening elements such as nails, bolts, pins and the like in a constructional component, includes a combustion chamber (14) having an axially displaceable wall (14) displaceable over at least one guide ( | 03/13/2007 |
| 7178487 | Combustion-engined setting tool A combustion-engined setting tool for driving fastening elements in constructional components includes a combustion chamber (14) for combusting therein a full gas-oxidant mixture, at least one guide element (20) arranged coaxially with a longitudinal a... | 02/20/2007 |
| 7174862 | Combustion-engined setting tool A combustion-engined setting tool (10) for driving in fastening elements such as bolts, nails, and the like in a constructional components includes an inlet/outlet valve arrangement (20) that connects the combustion chamber (13) of the setting t... | 02/13/2007 |
| 7175065 | Nailing gun with a dust-blowing device A nailing gun with a dust-blowing device, the dust-blowing device is attached to a side of the nailing gun and has an actuating device operated by pushing forward to actuate the dust-blowing device. Therefore, operation of the nailing gun with the dust-blowing devic... | 02/13/2007 |
| 7168603 | Hydrogen powered fastener driving tool with onboard generator of hydrogen A hydrogen operated fastener driving tool assembly including a hydrogen generator that is an integral part of the driving tool assembly. The hydrogen generator can use chemicals to generate hydrogen or electrolysis. Additionally, the generator may be disposable. Wha... | 01/30/2007 |
| 7163134 | Repetitive cycle tool logic and mode indicator for combustion powered fastener-driving tool A combustion-powered fastener-driving tool includes a combustion-powered power source, a workpiece contact element reciprocable relative to the power source between a rest position and a firing position, a control system operationally associated with the power sourc... | 01/16/2007 |
| 7146837 | Power crimping tool A tool for crimping work pieces to one another is disclosed. The tool is mounted on a power actuator having a reciprocating ram for effecting crimping. The tool includes a body engageable with the workpiece. A movable head is mounted on the body and receives the ram... | 12/12/2006 |
