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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 |
| 7421869 | Cylinder lock device Tumbler pins 2 are movably housed in a plug 1. A locked/unlocked state is determined by the turning position on the moving direction center axes of the tumbler pins 2. An unlocking key 4 to be inserted into the plug 1 is provided w... | 09/09/2008 |
| 7316140 | Electronic token and lock core A lock system is provided including a lock core and a token. The lock core comprises a core body, a lock actuator coupled to the core body for rotation about an axis, a blocking body, and a solenoid. The solenoid has a shaft that is movable between a first position ... | 01/08/2008 |
| 7272965 | Method and assembly to prevent impact-driven manipulation of cylinder locks A method and assembly for preventing unauthorized manipulation of common cylinder locks, as executed by use of the principles of the Bumpkey or Blowgun methods. The pin assembly, containing a tumbler pin and a driver pin, is adapted so as to alter linear displacemen... | 09/25/2007 |
| 7181941 | Lock system with improved auxiliary pin tumbler stack In a pin tumbler-type cylinder lock having an auxiliary tumbler stack, the bottom pin of the auxiliary tumbler stack has a recessed underside for receiving a projection on the key to form a detent. The invention provides an additional functionality that has not prev... | 02/27/2007 |
| 7155856 | Integral locking system for rifle A firearm integral locking system includes a cocking piece lock in a housing slot. The lock has a blade and a key aperture. The slot allows rotational movement. The cocking piece and lock each have an aperture. A plunger is slidably received in the cocking piece ape... | 01/02/2007 |
| 7117701 | Devices, methods, and systems for keying a lock assembly Certain exemplary embodiments of the present invention provide a lock keying system comprising: a lock cylinder comprising: a cylinder body; a plug assembly disposed in the cylinder body and comprising a plurality of pins and a one-to-one corresponding plurality of ... | 10/10/2006 |
| 7086259 | Pick resistant lock An anti-picking cylinder lock including a lock body, a plug defining a keyway, a plurality of telescopic body pin assemblies, each of the telescopic body pin assemblies including an outer body pin and an inner body pin and a plurality of telescopic plug pin assembli... | 08/08/2006 |
| 7007522 | Lock A lock includes a body defining a first bore having a lock core mounted therein, and a second bore having an engaging element inserted thereinto; and a front barrier shield fixedly mounted in the body in front of the lock core. A communicating hole is formed in the ... | 03/07/2006 |
| 6959569 | Re-keyable lock assembly A re-keyable lock cylinder includes a plug body and a carrier sub-assembly disposed adjacent the plug body. The plug assembly includes a plurality of planar wafers and the carrier sub assembly includes a plurality of racks for engaging the wafers in a face-to-face t... | 11/01/2005 |
| 6945082 | Key blank, key and master keying system A key blank, key and master keying system for a twisting tumbler sidebar lock of the type where the sidebar is blocked or unblocked by a selectively positioned longitudinally extending slider, has a key blank with a slider contacting surface on a rib on the blank be... | 09/20/2005 |
| 6925844 | Lock having a helical keyway and accompanying key and methods therefor The present application advantageously provides at least one keyway in a lock core that poses tremendous difficulty for a lock breaker by not allowing the lock breaker to see all of the pin tumblers in the keyway. The keyway according to a preferred embodiment of th... | 08/09/2005 |
| 6840072 | Electronic token and lock core A lock system comprises a lock core and a token. The lock core comprises a core body, a lock actuator coupled to the core body for rotation about an axis, a blocker movable perpendicular with the axis, and an electromagnetic actuator. The electromagnetic actuator ha... | 01/11/2005 |
| 6675617 | Burglar-proof cylinder lock A cylinder lock with a body, in which a plug with a profiled, axially extending key slot is rotatably arranged, and in which the body and the plug are provided with a number of bores approximately perpendicular to the plug axis, in which bores a number of... | 01/13/2004 |
| 6668606 | Electronic token lock core A lock system comprises a lock core and a token having an access code. The lock core comprises a core body, a lock actuator coupled to the core body for rotation about an axis, a blocker movable between a locking position in which the lock actuator is pre... | 12/30/2003 |
| 6508091 | Cylinder lock with effraction-resistant device A cylinder lock with a key, the lock having a plug with at least one hole intersecting the keyway. The hole is provided with two shoulders, one whereof lies further outward, the other one lying further inward with respect to the surface of the plug. An au... | 01/21/2003 |
| 6442986 | Electronic token and lock core A lock core for use with a token having an access code and a blade is provided. The lock core includes a core body, a lock actuator coupled to the core body for movement, a token communicator configured to read the access code when the blade is inserted i... | 09/03/2002 |
| 5966971 | Lock bolt The lock bolt has a bolt tip (2) a bolt head (3) whose back wall (4) is intended to rest against a housing pin for sliding this pin into the rotary closure cylinder (24). The bolt tip (2) is supported on the bolt head (3) with a spring engaged between the... | 10/19/1999 |
| 5894750 | Lock A lock includes a casing, a cylindrical rod and a key, the casing having a longitudinal hole for the cylindrical rod received therein. The casing and the cylindrical rod have a main transverse hole device defined radially respectively therein and are in a... | 04/20/1999 |
| 5839308 | Locking apparatus A key blank including a generally elongate shaft portion defining a key combination surface adapted to have formed thereon key cuts which define a key combination, the key blank including a movable pin element retained within the elongate shaft portion, t... | 11/24/1998 |
| 5457974 | Key and rotary locking cylinder for a safety lock A key and rotary cylinder for a safety lock are disclosed. The key has in its shank a continuous bore hole in which two opposite control elements are supported. These control elements are movable inwardly against the restoring force of a pressure spring a... | 10/17/1995 |
| 5233850 | Rekeyable lock system A rekeyable lock which includes a master lock activated by a master lock key, a rekeyable lock adjacent the master lock having a lock mechanism activated by a keyable lock key, and structure operably extending from the master lock to the rekeyable lock fo... | 08/10/1993 |
| 5222383 | Cylinder lock A cylinder lock has a cylindrical plug which is formed with a longitudinally extending keyway and which has a plurality of pin tumblers extending into the keyway. Each of the pin tumblers has a cylindrical outer part and a concentric inner part telescopic... | 06/29/1993 |
| 5123268 | Cylinder lock A cylinder lock including a housing and a plug disposed in the housing and arranged for rotation relative thereto, a first plurality of chambers formed in the housing and a second plurality of chambers formed in the plug and arranged such that each one of... | 06/23/1992 |
| 4996856 | Structure of cylinder lock A cylinder lock includes a cylindrical housing connected with a circular insert at its bottom to receive therein a movable barrel and a fixed barrel. A plurality of lock pin assemblies are set in a plurality of pin holes vertically through the movable loc... | 03/05/1991 |
| 4856309 | Pin tumbler lock A pin tumbler lock comprises a cylindrical shell, a plug fitted within the shell, and rotatable by key means. The plug has first bores for receiving first pin tumblers. The first bores are substantially normal to the axis of the plug. The shell has second... | 08/15/1989 |
| 4227389 | Key holder A key holder comprising in combination a housing and a ring member, the housing having a resilient tongue which may be depressed so as to provide an opening through which the ring member may be inserted. The ring member is provided with a slit which permi... | 10/14/1980 |
| 4142389 | Cylinder lock A dual pin tumbler lock and a key having two planar faces wherein the two planar faces of the key blade have similar concentric projections and depressions on both sides of a longitudinal axis for operating the lock, regardless of into which side of the d... | 03/06/1979 |
