Abstract: An apparatus for minimizing the transmission of vibrations from an un-sprung mass object to a sprung mass object through continuous control of system natural frequency and damping ratio including an air spring, a source of high pressure compressible gas, a vacuum source, a variable volume accumulator and a gas flow rate control valve to allow specified gas flow between the air spring and the accumulator thus generating variable system natural frequency and damping ratio.

Abstract: An apparatus that prevents collapse mode and sling-shot mode of the accumulated air spring vibration isolation system is presented. The apparatus is contained in an air spring which is connected to accumulator. The apparatus blocks air flow to the accumulator when the air spring is attempting to bottom out, resulting in a soft pneumatic stop for the suspended mass. High pressure air within the air spring at its lowest height is evacuated to the accumulator, thus precluding a “sling shot” reaction of the suspended mass. The apparatus incorporates a double acting air cylinder with an orifice disk attached to a piston shaft end and an orifice contained within the air spring head. The upper air cylinder volume is vented to the air spring interior compartment through an unrestrictive orifice and the lower air cylinder volume is vented to the high pressure source through a highly restrictive orifice.

Abstract: An improved action for a muzzleloading firearm which allows loading an ignition system from above, and completely releasing the action from below. The system covers the ignition system during firing to shield the user and the line of sight. The action may be removed in the field for inspection, cleaning or repair, without the need for tools.

Abstract: An improved muzzleloading firearm having a novel safety system. The safety system utilizes a spool coupled to a compression spring to maintain an ignition system such as a primer out of potential contact with a firing pin, even in the event of unintentional actuation of a hammer or sear. The safety system is automatic in operation, automatically placing the ignition system within reach of the firing pin when the firearm is placed into battery.

Abstract: A firearm having an improved action for a muzzleloading firearm which allows the toolless field removal of the firing system for inspection, cleaning and repair. The system provides for quick release, removal and reinsertion of the firing system while maintaining safe and secure operation of the firearm during firing.

Abstract: An improved action for a muzzleloading firearm which allows loading an ignition system from above, and completely releasing the action from below. The system covers the ignition system during firing to shield the user and the line of sight. The action may be removed in the field for inspection, cleaning or repair, without the need for tools.

Abstract: An apparatus for preventing the transmission of vibrations from one object to another including a first and second frame having a rod attached to one of the frames and the other being slideably mounted to the rod. An air bag or other force transmitting mechanism is attached to one end thereof to one of the frames and abuts the other of the frames. A source of fluid is provided for pushing the first and second frames apart when such fluid is allowed to flow into the force transmitting apparatus. A biasing structure is provided for causing the frames to move closer together when fluid is allowed to escape from the force transmitting apparatus and a valve structure is connected between the fluid supply and force transmitting apparatus for selectively controlling the flow of the fluid between the air bag, a source of pressurized fluid and atmosphere.