Abstract: A helmet assembly and helmet fastening system that uses a spring loaded female fastener attached to the chinstrap and a matching male fastener attached to a helmet that makes it easy to attach the chinstrap to the helmet and difficult to detach the chinstrap from the helmet unless the plunger is intentionally pulled back (i.e., released or disengaged). This positive connection takes a tremendous amount of force to disengage unless the plunger is pulled back, thereby keeping the chinstrap attached to the helmet and the helmet in place.

Abstract: A helmet assembly and helmet fastening system that uses a spring loaded female fastener attached to the chinstrap and a matching male fastener attached to a helmet that makes it easy to attach the chinstrap to the helmet and difficult to detach the chinstrap from the helmet unless the plunger is intentionally pulled back (i.e., released or disengaged). This positive connection takes a tremendous amount of force to disengage unless the plunger is pulled back, thereby keeping the chinstrap attached to the helmet and the helmet in place.

Abstract: A helmet assembly comprises a helmet, a facemask, and a plurality of female connectors directly or indirectly affixed to the facemask. The helmet comprises an outer shell and a plurality of studs affixed thereto. Each of the plurality of female connectors is (i) selectively matable to a corresponding one of the plurality of studs by pushing the female connector onto the corresponding stud and (ii) selectively releasable from a corresponding one of the plurality of studs by pulling a grasping portion of the female connector and moving the grasping portion along a longitudinal axis of the female connector from a first position to a second position. The facemask is selectively affixable to the outer shell by selectively mating each of the plurality of female connectors to a corresponding stud, and selectively removable from the outer shell by selectively releasing each of the plurality of female connectors from a corresponding stud.

Abstract: A helmet assembly and helmet fastening system that uses a spring loaded female fastener attached to the chinstrap and a matching male fastener attached to a helmet that makes it easy to attach the chinstrap to the helmet and difficult to detach the chinstrap from the helmet unless the plunger is intentionally pulled back (i.e., released or disengaged). This positive connection takes a tremendous amount of force to disengage unless the plunger is pulled back, thereby keeping the chinstrap attached to the helmet and the helmet in place.

Abstract: A method of utilizing a robot system, the method comprising the steps of offering for consideration a usage unit for the robot system, accepting an order for the usage unit, and performing a retail function by the robot system for the duration of the usage unit.