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Inventor’s

                      Corner






                         By William Fischer

         Thank you as always for your interest in our
         magazine, and Inventor’s Corner. We have gotten
         through another summer and are contemplating
         another fall, with Thanksgiving right around the
         corner. Although sometimes it seems rather difficult
         to be  thankful for the current situation, there is
         always room for optimism. The promised infrastructure boom hasn’t come to pass, and
         although we continue to hear about an expected upturn in the economy from economists,
         that hasn’t come to pass either. Nevertheless, the indomitable spirit of our industry continues
         to innovate, and when the need arises, we will be ready. Have a great Thanksgiving to all of
         our readers, their friends and family.



         Portable net barrier system
         Pat. 9,695,560 U.S. class E01F 13 Int. class E01F 13/00
         Inventor: Stephen Neusch, Austin, TX.
         Assignee: Stephen Neusch, Austin, TX.
           This patent presents barrier system including an elastic net
         coupled to a cable, an energy absorption member coupled be-
         tween the cable and an anchoring assembly, and an actuation
         assembly coupled to the net and configured to rotate the net
         about an axis of rotation between a closed position restricting
         vehicle access through the barrier system, and an open posi-
         tion allowing vehicle access through the barrier system.
           Referring to figure 1, an embodiment of a net barrier sys-  Figure 2: Front view of an embodiment  of a net barrier system,
         tem 10 is shown in a closed position restricting vehicle ac-  illustrated in an open position.
         cess therethrough and generally includes a net 20, a pair   itself damaged, allowing net 20 to be reused following an in-
         of horizontally extending cables 30, and a pair of buttress   terception of a moving vehicle. Cables 30 are also configured
         assemblies  50  coupled  or  affixed  to  the  surface  12  of  the   to survive an interception, and thus be reused following the
         ground 14. In some embodiments, the barrier system 10 is a   interception of a moving vehicle. In the embodiment shown
         portable barrier system. For ease of description, the barrier   in figure 1, cables 30 comprise 0.75” wire rope.
         system 10 may be referred to as a portable barrier system,   Net 20 has a central or longitudinal axis 25, an upper edge
         though it is understood that the barrier system 10 may not   20a, and a lower edge 20b. The net 20 couples to the cables 30
         be portable in other embodiments. The net 20 is configured   along the longitudinal axis 25 at upper and lower edges 20a
         to intercept a moving vehicle attempting to travel between   and 20b, respectively. In this embodiment, net 20 includes an
         the pair of buttress assemblies 50 by transferring an arrest-  elastic nylon webbing 22 that extends between the cables 30
         ing force to the vehicle and thereby decelerate the vehicle,   and is configured to partially absorb energy transferred to the
         ceasing the vehicle’s motion. Net  20  is  further  configured   net 20 from the impact of a moving vehicle. For instance, en-
         such that it may intercept a moving vehicle without being   ergy may be absorbed by net 20 through the elastic deforma-
                                                              tion of nylon webbing 22 during the interception of a moving
                                                              vehicle. However, in other embodiments net 20 may comprise
                                                              other elastic or deformable materials and structures config-
                                                              ured to transfer loads from the impact of a moving vehicle to
                                                              cables 30. Also, because net 20 is elastic, it may generally de-
                                                              form to the contour of the vehicle on impact, thereby eliminat-
                                                              ing, or at least mitigating against, damage to the intercepted
                                                              vehicle caused by the collision between the vehicle and net
                                                              20. Further, the elasticity of net 20 allows for a lower or more
                                                              gradual rate of deceleration of the intercepted vehicle upon
                                                              impact, thereby lessening the damage done to the vehicle and
         Figure 1: Front view of an embodiment  of a net barrier system,   mitigating against the possibility of injury or reducing the se-
         illustrated in a closed position.                    verity thereof to any of the intercepted vehicle’s occupants.

         56     Wire Rope News & Sling Technology   October 2017
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