Locking bar for auxiliary landing mat

Claim 1

IN A STRUCTURE MAT ASSEMBLY ADAPTED FOR USE AS AN AUXILIARY LANDING FIELD FOR AIRCRAFT IN WHICH SAID STRUCTURAL MAT ASSEMBLY COMPRISES AN ARRAY OF UNIT MATS WITH LOCKING UNITS INTERPOSED AT SPACED INTERVALS THROUGHOUT SAID ARRAY, EACH OF SAID UNIT MATS BEING RELATIVELY LONG AND NARROW AND HAVING OPPOSED MALE AND FEMALE LONGITUDINAL EDGES INTERLOCKED WITH MATING EDGES OF ADJOINING UNIT MATS, LOCKING UNITS EACH COMPRISING TWO ELONGATED MEMBERS MATED TOGETHER AND INTERPOSED BETWEEN OPPOSED LONGITUDINAL EDGES OF OTHERWISE ADJACENT UNIT MATS, THE OPPOSED OUTER EDGES OF THE MATED LOCKING MEMBERS MATING AND INTERLOCKING WITH THE OPPOSED EDGES OF SAID OTHERWISE ADJACENT UNIT MATS, THE INNER MATED EDGES OF EACH OF SAID LOCKING MEMBERS HAVING RECESSES OPEN VERTICALLY AND VERTICAL PROJECTIONS, THE VERTICAL PROJECTIONS OF ONE OF SAID LOCKING MEMBERS BEING ADAPTED TO BE RECEIVED BY THE RECESSES OF THE OTHER OF THE LOCKING MEMBERS FORMING AN INTERLOCKING CONNECTION WHICH OPPOSES SEPARATION OF THE MATED LOCKING MEMBERS BY LATERAL FORCE BUT WHICH ALLOWS ONE OF THE UPWARD PIVOTAL ACTION UNALONG THE MATING EDGE OF ONE OF SAID MATED LOCKING MEMBERS, THE MATING EDGE OF THE OTHER OF SAID LOCKING MEMBERS BEING PROVIDED WITH A PLURALITY OF SIDE SLOTS AT CORRESPONDING LOCATIONS FOR RECEIVING SAID LATCH BARS.