Abstract: A three-axis gravity switch having a curved chamber in the shape of a 360 degree torus having a circular cross-section which retains a gravity responsive member such as a ball of liquid mercury, the chamber having a three-dimensional sensing pathway defined on at least one of its walls, where the gravity responsive member and pathway are conductive, either electrically or optically, such that a circuit is completed when the gravity responsive member contacts the pathway, where the switch can be rotated, inverted and translated in three dimensions such that the pathway defines an acceptable three dimensional course of rotation for the switch.

Abstract: A three-axis gravity switch having a curved chamber with an inner wall in the shape of a convex hemisphere and an outer wall in the shape of a concave hemisphere which retains a gravity responsive member such as a ball of liquid mercury, the chamber having a three-dimensional sensing pathway defined on at least one of its walls, where the gravity responsive member and pathway are conductive, either electrically or optically, such that a circuit is completed when the gravity responsive member contacts the pathway, where the switch can be rotated, inverted and translated in three dimensions such that the pathway defines an acceptable three dimensional course of rotation for the switch.

Abstract: A three-axis gravity switch having a curved chamber with an inner wall in the shape of a convex hemisphere, an electrically conductive outer wall in the shape of a concave hemisphere, a magnet disposed within the inner wall which retains a gravity responsive metal ball abutting the inner wall, an electrically conductive liquid connecting the metal ball to the outer wall, and the chamber having a conductive pathway defined on its inner wall, such that a circuit is completed when the gravity responsive member contacts the pathway, where the switch can be rotated, inverted and translated in three dimensions such that the pathway defines an acceptable three dimensional course of rotation for the switch.

Abstract: A three-axis gravity switch having a curved chamber with a spherical inner wall and a spherical outer wall which retains a gravity responsive member such as a ball of liquid mercury, the chamber having a three-dimensional sensing pathway defined on at least one of its walls, where the switch can be rotated, inverted and translated in three dimensions such that the pathway defines an acceptable three dimensional course of rotation for the switch.

Abstract: A three-axis gravity switch having a curved chamber to retain a gravity responsive member such as a ball of liquid mercury, the chamber having a three-dimensional pathway defined on at least one of its walls, where the gravity responsive member and pathway are conductive, either electrically or optically, such that a circuit is completed when the gravity responsive member contacts the pathway, where the switch can be rotated, inverted and translated in three dimensions such that the pathway defines an acceptable three dimensional course of rotation for the switch.