Abstract: A recoil absorber for a firearm including a housing, a stock carrier assembly, a primary spring, and a damper cartridge assembly. The damper cartridge assembly includes a high pressure chamber, a low pressure chamber, and a piston. The piston includes a first piston orifice, a second piston orifice, a second spring, and a poppet which includes a poppet orifice. The second spring applies a biasing force on the poppet. Fluid may flow from the high pressure chamber through the poppet orifice and through the first piston orifice into the low pressure chamber when the pressure of the fluid in the high pressure chamber is between a first pressure and a second pressure. When the pressure increases above the second pressure, the poppet compresses the second spring to self-regulate the pressure in the high pressure chamber.

Abstract: A recoil absorber for a firearm including a housing, a stock carrier assembly, a primary spring, and a damper cartridge assembly. The damper cartridge assembly includes a high pressure chamber, a low pressure chamber, and a piston. The piston includes a first piston orifice, a second piston orifice, a second spring, and a poppet which includes a poppet orifice. The second spring applies a biasing force on the poppet. Fluid may flow from the high pressure chamber through the poppet orifice and through the first piston orifice into the low pressure chamber when the pressure of the fluid in the high pressure chamber is between a first pressure and a second pressure. When the pressure increases above the second pressure, the poppet compresses the second spring to self-regulate the pressure in the high pressure chamber.

Abstract: A recoil absorber for a firearm including a housing, a stock carrier assembly, a primary spring, and a damper cartridge assembly. The damper cartridge assembly includes a high pressure chamber, a low pressure chamber, and a piston. The piston includes a first piston orifice, a second piston orifice, a second spring, and a poppet which includes a poppet orifice. The second spring applies a biasing force on the poppet. Fluid may flow from the high pressure chamber through the poppet orifice and through the first piston orifice into the low pressure chamber when the pressure of the fluid in the high pressure chamber is between a first pressure and a second pressure. When the pressure increases above the second pressure, the poppet compresses the second spring to self-regulate the pressure in the high pressure chamber.

Abstract: A recoil absorber for a firearm including a housing, a stock carrier assembly, a primary spring, and a damper cartridge assembly. The damper cartridge assembly includes a high pressure chamber, a low pressure chamber, and a piston. The piston includes a first piston orifice, a second piston orifice, a second spring, and a poppet which includes a poppet orifice. The second spring applies a biasing force on the poppet. Fluid may flow from the high pressure chamber through the poppet orifice and through the first piston orifice into the low pressure chamber when the pressure of the fluid in the high pressure chamber is between a first pressure and a second pressure. When the pressure increases above the second pressure, the poppet compresses the second spring to self-regulate the pressure in the high pressure chamber.

Abstract: An electromechanical injection actuator (20) as arranged to controllably rotate and translate a feedscrew relative to a frame (28) to express plastic material into a mold. The improved actuator includes a ball-screw (24) mounted on the frame, the ball-screw having a nut (26) matingly engaging a screw (25), the screw being attached to the feedscrew (F); an electric metering motor (21) mounted on the frame and having a rotatable output shaft (22), the rotational movement of the output shaft being transmitted to the screw through a splined connection (40, 41); an injection motor (45) mounted on the frame and operatively arranged to selectively rotate the nut relative to the frame; and a unidirectional clutch or brake (29) operatively arranged between the nut and frame for permitting the nut to rotate relative to the frame only in the angular direction needed to translate the feedscrew in a direction to express plastic material into the mold.