Abstract: There is provided a spark plug connector for connection to a spark plug having an elongated terminal with a grooved portion, comprising: a body having a longitudinal axis and an internal bore extending along the axis; a means for fixedly positioning a wire within the body closely adjacent to the bore; a locking member reciprocably mounted to the body so as to be selectively movable between a first position and a second position, wherein in the first position the terminal can be inserted into the bore to contact the wire and in the second position the locking member engages the grooved portion of the terminal to lock the terminal in position with respect to the wire and body.

Abstract: Sheathing for a resistance-tape level sensor which provides a multiplicity of enclosing envelopes for guarding the critical inner electrical sensing element, and multiple venting paths for respiration and pressure-equalization of chambers formed by the separate envelopes.

Abstract: A mounting head for a resistance tape level sensor is provided which includes a cylindrical outer shell enclosing deformable elastomeric elements surrounding and supporting certain elements of the sensor and clamped to provide high internal compressive forces for sealing all leakage paths.