COMPACT SELF CONTAINED UNDERWATER BREATHING APPARATUS

Brand	Owner	Address	Description
SEA-AIR	HALKEY-ROBERTS CORPORATION	2700 Halkey-Roberts Place North St. Petersburg FL 33716	COMPACT SELF-CONTAINED UNDERWATER BREATHING APPARATUS AND AIR CYLINDER;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

An arrangement and method for parallel alignment of propeller shafts in a first and a second underwater housing arranged on the hull of a vessel, which underwater housings are arranged to rotate around an axis of rotation which is angled in relation to the propeller shafts arranged in each underwater housing, which arrangement includes a servo motor arranged for each underwater housing, which servo motor is arranged to rotate said underwater housing. A position sensor arranged for each servo motor, which position sensor is arranged to detect an angular position of the underwater housing. A control unit in which a reference angular position of the underwater housing is arranged to be stored during a calibration of the position of the underwater housing; and a calibrator of the position of the underwater housings by storing output signals from the position sensors in the control unit during a parallel alignment of propeller shafts in two underwater housings arranged on the hull of a vessel.