Abstract: A delivery device includes first and second housing portions that selectively engage and disengage. A reservoir on one housing portion operatively engages a drive device and/or a needle inserting device on the other housing portion. Upon proper engagement of the housing portions, the reservoir operatively couples to the drive device and/or the needle inserting device. A first magnet on the first housing portion and a second magnet (or a magnetically-attractive material) on the second housing portion are positioned to magnetically interact with each other, upon operative engagement of the housing portions. A third magnet on the second housing portion may be opposed to the first magnet to help align the housing portions for connection. A magnet-responsive device may be on one or both housing portions to detect alignment and/or connection of the housing portions.

Abstract: An improved microprocessor-based navigational aid system for use onboard a vessel is disclosed. The system includes a microprocessor having peripheral memory devices, sensors for measuring variable parameters and thumb switches for inserting known values for fixed parameters. The microprocessor computes from these parameters, data which enable the optimum navigation of a vessel. In determining these data, the computation includes such factors as leeway and current set and drift, which are determined electronically. The system includes components for receiving information regarding the vessel's present position from a satellite-based external information source. That information is relayed to the microprocessor which uses it to periodically correct the positional information stored in the peripheral memory device.

Abstract: A navigational aid system including a microprocessor having peripheral memory devices and being programmed by a read only memory, the system including sensors for measuring variable parameters and thumb switches for inserting known fixed data, and the microprocessor computing from such parameters and data readout data needed for optimum navigation taking into account such factors as leeway and current set and drift, the system having switches to select which data is displayed as the switches are sequentially polled, and the displayed data being accompanied by alpha indicia uniquely identifying each displayed numeric value.

Abstract: A vibratory pest control device having a sonic resonator with more than one mode of vibration and a driving element coupled to the resonator to vibrate it alternately at different frequencies.