Abstract: Fixed systems and method for extinguishing large scale industrial tank fires, with and without fixed roofs, and featuring aerated foam projecting nozzles and including fixed center directed nozzles.

Abstract: The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers.

Abstract: Fixed systems and method for extinguishing large scale industrial tank fires, with and without fixed roofs, and featuring aerated foam projecting nozzles and including fixed center directed nozzles.

Abstract: Fixed systems and method for extinguishing large scale industrial tank fires, with and without fixed roofs, and featuring aerated foam projecting nozzles and including fixed center directed nozzles.

Abstract: The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers.

Abstract: The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers.

Abstract: The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers and the formation of wand heads and wands.

Abstract: The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers.

Abstract: The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers and the formation of wand heads and wands. Specifically, the invention includes a nozzle having a tip portion, the tip portion having a stream shaper, and the stream shaper having at least four fins with a longitudinal dimension in the tip portion greater than a radial dimension in the tip portion.

Abstract: Fixed systems and method for extinguishing large scale industrial tank fires, with and without fixed roofs, and featuring aerated foam projecting nozzles and including fixed center directed nozzles.

Abstract: An iron sight system for handguns including a notched blade rear iron sight, providing view windows through blade structure predominantly to the left and to the right of a defined notch, and the notched blade rear iron sight combined with a front iron sight providing a view therethrough.

Abstract: Fixed systems and method for extinguishing large scale industrial tank fires, with and without fixed roofs, and featuring aerated foam projecting nozzles and including fixed center directed nozzles.

Abstract: An enhanced range and landing pattern, straight stream and fog, fire fighting nozzle including solid bore and annular discharge ports wherein the nozzle discharges an inner stream surrounded by an outer stream.

Abstract: The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers and the formation of wand heads and wands.

Abstract: The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers and the formation of wand heads and wands.

Abstract: The invention includes components and methodology for fixed and semi-fixed systems for extinguishing fire in large industrial flammable liquid storage tanks, including aerated foam projecting nozzles discharging substantially focused streams together with aeration chambers and risers and the formation of wand heads and wands.

Abstract: Fixed systems and method for extinguishing large scale industrial tank fires, with and without fixed roofs, and featuring aerated foam projecting nozzles and including fixed center directed nozzles.

Abstract: An iron sight system for handguns including a notched blade rear iron sight, providing view windows through blade structure predominantly to the left and to the right of a defined notch, and the notched blade rear iron sight combined with a front iron sight providing a view therethrough.

Abstract: Fixed systems and method for extinguishing large scale industrial tank fires, with and without fixed roofs, and featuring aerated foam projecting nozzles and including fixed center directed nozzles. The invention includes two connected nozzles, which project aerated foam of between in substantially focused streams and in roughly opposing directions. The two nozzles have a stream shaper in a tip portion of the nozzle with fins which terminate substantially flush with a nozzle tip solid bore discharge orifice. The two nozzles preferably are attached proximally downstream of and in fluid communication with at least one ambient air aeration chamber structure in combination with the two nozzles to produce aerated foam. A third nozzle of the fixed system is structured to discharge in a direction of within 30° of a perpendicular to the discharge axis defined by the two nozzles discharging in the roughly opposing directions.

Abstract: A system and apparatus for extinguishing a fire of a difficult to extinguish fuel or flammable liquid in a storage tank fitted with at least a significant top roof portion, the system including timely discharge of dry powder into a significantly enclosed space or cavity defined between the fuel/liquid surface, or between any floater remaining thereon, and the fixed top roof portion, and apparatus to facilitate the system.