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US 5,575,270 AGranted
Air guns
AssigneeIndustrias el Gamo, S.A.
InventorFrancisco Casas-Salva
Life of this patent
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AssigneeIndustrias el Gamo, S.A.
InventorFrancisco Casas-Salva
Estimating the term…
Improvements in hinged barrel air guns are disclosed where the air gun has a barrel 28 acting as a lever arm to compress a spring 4 attached to an axially movable piston 1 that is tightly inserted in a compression chamber 2 and has thrusting element 5 associated with the piston for compressing said spring and a safety catch 6 which locks the piston in a spring compressed position suitable for shooting. The improvements consist of producing the piston 1 in a tubular shape molded in plastic material, including a contoured end wall 8 and 11, a plate 9 resistant to wear providing a link between the piston, the thrusting element 5 and the safety catch 6, and a dense inertial element 10 integral with the tubular piston. A casing 27 completely covers the barrel body 28 except for its front and rear ends. Each of the two lateral sides of the rear end 29 of the casing 27 have recesses 31 to fit, in the closed position of the gun, with corresponding projecting ridges 32 on the inner wall of each one of the limbs of a fork 30a in a one-piece body that extends rearwardly to form the compression chamber.
In an air gun of the type having a hinged barrel with the barrel acting as a hinged lever arm to compress a spring attached to an axially movable piston that is tightly inserted in a compression chamber mounted on the buttstock body of the gun, and further including a hinged push-rod thrusting means associated with the piston for compressing the spring, as well as a safety catch which locks the piston in a spring compressed position for shooting, an improvement comprising;
In an air gun of the type having a hinged barrel with the barrel acting as a hinged lever arm to compress a spring attached to an axially movable piston that is tightly inserted in a compression chamber mounted on the buttstock body of the gun, and further including a hinged push-rod thrusting means associated with the piston for compressing the spring, as well as a safety catch which locks the piston in a spring compressed position for shooting, an improvement comprising;
In an air gun of the type having a hinged barrel with the barrel acting as a hinged lever arm to compress a spring attached to an axially movable piston that is tightly inserted in a compression chamber mounted on the buttstock body of the gun, and further including a hinged push-rod thrusting means associated with the piston for compressing the spring, as well as a safety catch which locks the piston in a spring compressed position for shooting, an improvement comprising;
In an air gun of the type having a hinged barrel with the barrel acting as a hinged lever arm to compress a spring attached to an axially movable piston that is tightly inserted in a compression chamber mounted on the buttstock body of the gun, and further including a hinged push-rod thrusting means associated with the piston for compressing the spring, as well as a safety catch which locks the piston in a spring compressed position for shooting, an improvement comprising;
Dependencies are inferred from the claim text.