Abstract: A safety harness and quick connecting lifting sling used by people such as commercial divers that are required to wear some type of helmet or head gear (such as a diving helmet or full face mask) while being lifted wearing the safety harness. The harness is designed with multiple attachment points that are used to quickly connect the lifting sling for lifting the diver in or out of the water. The lifting sling has been specifically designed with one or more net structures that are used to stabilize the head area and support the weight of the head gear (diving helmet or mask) when the diver is lifted to help prevent neck fatigue and/or injuries to the diver, even if the person is unconscious.

Abstract: A tubular body is operatively coupled to an oral nasal mask and provided with lateral apertures adapted for fluid flow. A flexible valve is mounted onto one end of the tubular body and adapted to seal the lateral apertures under normal operation conditions and expose the lateral apertures for fluid flow during emergency operation conditions. The sealed lateral apertures keep exhaust gases from escaping the oral nasal mask and contaminating the interior of the diving equipment during normal operation conditions. The exposed lateral apertures allow air from an alternate source to reach the mouth and nose of a user covered by the oral nasal mask during emergency operation conditions. The exposed lateral apertures allow excess water to be removed from inside the diving equipment. The valve system may be implemented as an integrated regulator mount nut/valve system.

Abstract: A flexible full face mask to supply breathable air to humans when in environments where it is not possible to breathe, such as underwater masks, or in environments having toxic gases or similar toxic conditions. The mask includes a mask skirt in the form of a one-piece flexible face seal and separate rigid frame components which define separated self-contained spaces that are connected together in a manner to allow each self-contained space to individually conform and seal against the contours of the face of the wearer. The mask also includes a removable adaptor pod mounted on a lower of the frame components to enable full access to the mouth of the wearer while maintaining the mask in sealed relation on the facial surfaces of the wearer.

Abstract: A flexible full face mask to supply breathable air to humans when in environments where it is not possible to breathe, such as underwater masks, or in environments having toxic gases or similar toxic conditions. The mask includes a mask skirt in the form of a one-piece flexible face seal and separate rigid frame components which define separated self-contained spaces that are connected together in a manner to allow each self-contained space to individually conform and seal against the contours of the face of the wearer. The mask also includes a removable adaptor pod mounted on a lower of the frame components to enable full access to the mouth of the wearer while maintaining the mask in sealed relation on the facial surfaces of the wearer.