Abstract: An explosive round countermeasure system incorporates a plurality of linear shaped charges with standoffs for holding the linear shaped charges in parallel spaced relation distal from the structure to be protected, each shaped charge creating a substantially planar jet when detonated. Means for sensing an incoming explosive round having a nose mounted fuse structure is provided and means for detonating at least one of the charges in the array responsive to the sensing means such that the detonation is timed for placement of the fuse structure adjacent the at least one charge.

Abstract: A countermeasure system which is capable of defusing rocket propelled grenades (RPG) is provided by spacing an array of explosive charges or primacord from the protected structure to allow and sense an ogive of the fused RPG to enter into a functional plane of the array initiating one or more of the charges to collapse to ogive. The array is supported flexibly or rigidly and further ballistic protection is incorporated behind the array in fixed or inflatable forms to provide protection of the structure from the explosive products from the array and the ballistic impact of the defused RPG.

Abstract: A clamping system (10/110) for holding, supporting or lifting a heavy work piece (200; e.g. a pipe section of pipe line of hundreds of pounds) located below a girder (100) using rigging (210) attached to the clamp at attachment openings (27/37, 127/137) equally spaced from the center-line web (103) of the girder, which clamping system is attached to opposed, side edges of the top flange member (102) of the girder (vis-a-vis the bottom flange member 101), or in a second embodiment (FIGS. 9+) to either the top or the bottom. In the second embodiment a straight bar (150) with a series of spaced, locking cavities (151a/b) is used in place of the threaded rod, threaded engagement of the first embodiment, with the cavities working with spring-biased pin latches on the side gripping elements. When used on the bottom flange, a slidable, load supporting, centrally located accessory (160) is used.