Abstract: Methods and apparatus for lock and key security, the lock including a light receptacle, a scatter pattern detecting module, and a locking mechanism, the key including a light source and a prism, the lock and key security including receiving, in the light receptacle of the lock, light transmitted by the light source in the key through the prism; identifying, by the scatter pattern detecting module, a scatter pattern of the received light; comparing, by the scatter pattern detecting module, the scatter pattern to a unique preauthorized pattern for operating the lock; if the scatter pattern matches the unique preauthorized pattern, switching, by the scatter pattern detecting module, the current locking state of the locking mechanism; and if the scatter pattern does not match the unique preauthorized pattern, maintaining the current locking state of the locking mechanism.

Abstract: A method of evaluating a master key system. The method comprises entering criteria for the master key system and determining the available master key cuts and change key cuts based on the criteria. The determined available master key cuts and change key cuts are arranged under a standard progression format including at least two page masters. Each page master is displayed as a graphical page master arranged graphically relative to the other graphical page masters based on the master key hierarchy. The information is displayed as a master key illustrator.

Abstract: The present invention relates to a direction guide vibration system of a vehicle operating with a navigation and control method thereof, which applies vibration to a driver's seat on which a driver sits at the spot where a left turn or a right turn and a U turn are expected, on a path to move to a driver's intended destination, informs a driver thereof in advance for people and the hearing impaired using a navigation and informs the driver thereof before an enforcement area in which an over-speed camera is installed, thereby securing a safe driving of a vehicle.

Abstract: This invention involves a lock device, including housing with a center through hole and a core that matches the center through hole. There is a center through hole engagement groove in the wall of the center through hole and there is a core engagement groove opposite this center through hole engagement groove. The lock includes a fitting ring and elastic part. The fitting ring and elastic part are between the center through hole engagement groove and the core engagement groove, within the core engagement groove. The advantages of the aforementioned lock are that assembly is convenient and use is not easily affected by assembly.

Abstract: A locking sensor for locking into the recess of a housing with a sensor body, of locking elements, that are arranged on the sensor body and that extend in the direction of a lengthwise axis over a length. The locking elements have steps and at least two steps are spaced apart from each other in the direction of the lengthwise axis.

Abstract: The invention relates to an internal combustion engine (1) comprising a housing (2) having at least one opening (4) into its inside, which is preferably the engine-oil feed inlet, and with a camshaft (5), mounted inside the housing for rotation about its geometric shaft. The camshaft (5) and the housing (2) have means cooperating with each other and with a device for locking a turnable shaft (6) with respect to the housing, insertable through this opening. In a second embodiment of the present invention, the device consists of a rod (6), the cooperating means in the housing consist in a bore (7) for receiving an end of the rod (6), and the cooperating means on the cam shaft consist of a notch (9) made in the surface of the shaft, which cooperates with the rod. In this way, when there is a need to adjust, repair and/or replace engine (1) components, the rod (6) is inserted through the opening (4) and locked in this bore (7) of the housing (2).

Abstract: A removable lining apparatus and method usable in conjunction with a soft mechanical restraint cuff is disclosed. The inventive removable lining ensures sanitary conditions during the utilization of the restraint cuff and reduces the wear and tear thereto. Embodiments of the inventive removable lining include a friction coating on the side that contacts the restrained person's limb, a one- and two-part releasable attachment systems for releasably attaching the inventive lining to a restraint cuff, and a disposable absorbent removable lining.

Abstract: A musical door lock comprises a generally rectangular housing having enclosed therein door lock, an electric door bell and a battery chamber. When a push-button on the outer periphery is pressed to actuate a sound generator inside the housing, the combined electric door bell will release a musical melody or the sound of bird chirps inside the door. A second example provides a frequency regulator instead of a sound generator incorporated with a movable wireless door bell that offers more convenience to the house owners. In addition an anti-burglar device combine with the lock mechanism for releasing a warning signal which may be received by a portable radio receiver. This disclosure is characteristically providing an economical utility of space in a door lock as well as its variety of functions.

Abstract: A bicycle rack including a forwardly inclined framework having an upper front wheel receiver and a lower rear wheel receiver, and a shackle carried by the framework for releasable retaining engagement with the frame of a bicycle having its wheels in the wheel receivers.