Abstract: A blow out preventor (BOP) stump test apparatus includes: a main body including an outer surface, a bore, and a mounting structure for releasably and rigidly connecting the main body to a BOP to be tested; and a test bar including a position indicator slidably retained in the bore and capable of moving up and down in the bore between an upper position and a lower position, where the positional indicator indicates when the test bar moves up in the bore during a BOP stump test.

Abstract: A rotating joint apparatus includes a first section, a second section, and an interface between the first section and the second section. A bearing at the interface is configured such that the first section is rotatable relative to the second section. A main flow passage extends through the first section and the second section. A signal conductor is accessible, by a first connector on an exterior surface of the first section and, and by a second connector on an exterior surface of the second section. The signal conductor includes a signal transmission assembly at the interface.

Abstract: The present disclosure is directed to a helmet-facemasks system including a facemask, shock-absorbent mechanism facemask holders/clips and attaching mechanisms thus holding the face protective gear, including but not limit to facemask and chin guard. The shock-absorbent mechanism in combination with the clips, attaching mechanism and facemask are attached to the helmet in a fixed position while assisting with minimizing the impact force transfer by maximizing impact energy absorption.

Abstract: The present disclosure is directed to a physiological and neurological monitoring apparatus that monitors and satisfies the need for an improved buffer between the skull of a user and the impacting object so as to minimize the likelihood of neck and cranial injury. Further the helmet comprises a facemask for prevent concussions by absorbing the energy from an impact and redirecting the energy across the structure of the helmet shell. The embodiment comprises a helmet shell with elongated cheek guards and an elongated rear neck guard which follows the contour of the user's shoulder line and continues sufficiently below the head of said user to cover the rear neck of the user. These additions help prevent concussions by providing a larger surface of protection to especially weak areas that are prone to injury such as the rear of the neck and the lower jaw line.