Abstract: A backrest for a motorcycle includes a base plate including an upper portion, and a lower portion including first and second opposing ends. A frame and/or pad are attached to the support portion. The lower portion includes a first vertical recess in the first end, and a second horizontal recess in the second end. A bracket is slidably mounted to the base portion, the bracket being slidable along a transverse axis between open and closed positions. In the closed position, a third recess in the bracket at least partially encloses the second recess for securing a pin within the second and third recesses. A locking arm is pivotally mounted to the bracket member for releasably securing the bracket member in the closed position. The bracket member and locking arm allow the backrest to be quickly attached to and released from a motorcycle.

Abstract: An ultrasonic signal is used to link a beacon unit to a tracker unit to provide a tracking and navigation system for firefighters to use in a smoke filled environment at the scene of a fire. The beacon unit transmits an omnidirectional ultrasonic signal. The tracker unit, using a directional ultrasonic receiver provides a display or other indication of the signal strength of the received ultrasonic signal to allow the direction to the beacon unit to be determined. The ultrasonic signal provided by the beacon unit may be pulse modulated to include digitally encoded data that may be used to identify particular individuals, objects, materials, dangers, or exits. In addition, the tracker unit may be provided with a transmitter and the beacon unit provided with a receiver such that audio communication may be established therebetween.

Abstract: There is disclosed herein a form of cabinet for providing secure storage of a golf bag or bag and clubs therein at a golf course or other facility. A single cabinet or series of cabinets may be provided, with each including a frame assembly, a top, floor and hinged door assembly. The top and door prevent the bags and clubs from being removed from the top and front, respectively, of the cabinet, and suitable cover devices for the back and sides, such as open grids, are provided for preventing removal from the back and sides.