Abstract: Staged combustion apparatus is disclosed for generating repetitive explosions. The apparatus includes a first chamber in which a gas under pressure is ignited by an ignition source, such as a spark plug, and a second chamber in which gas under pressure is ignited by gas discharging from the first chamber. The second chamber includes a discharge outlet and a dump valve is provided responsive to the gas pressures in the two chambers for permitting the discharge of gas under pressure from the second chamber when it is ignited. The gas discharge, for example, may be conducted about the tooth of a ripper plow to aid in earth fracture.

Abstract: A repetitive combustion system for coating a work piece with particulate material is disclosed which utilizes an encapsulating tape having a plurality of discrete capsules each containing a predetermined quantity of the particulate coating material. The capsules are sequentially fed into a stripping chamber where the tape is clamped between inlet and outlet manifolds which provide a circumferential seal around the respective capsules so that pressure can be applied to an inlet face of the capsule. The inlet face is so configured as to admit air into the interior of the capsule which then swells and bursts the outlet face or otherwise passes through the outlet faces. The air pressure then injects the particulate material into the combustion chamber while the pressure in the combustion chamber is near the peak produced by combustion.

Abstract: A repetitive combustion system for coating a work piece with particulate material is disclosed which utilizes an encapsulating tape having a plurality of discrete capsules each containing a predetermined quantity of the particulate coating material. The capsules are sequentially fed into a stripping chamber where the tape is clamped between inlet and outlet manifolds which provide a circumferential seal around the respective capsules so that pressure can be applied to an inlet face of the capsule. The inlet face is so configured as to admit air into the interior of the capsule which then swells and bursts the outlet face or otherwise passes through the outlet faces. The air pressure then injects the particulate material into the combustion chamber while the pressure in the combustion chamber is near the peak produced by combustion.

Abstract: A repetitive combustion system for coating a work piece with particulate material is disclosed which utilizes an encapsulating tape having a plurality of discrete capsules each containing a predetermined quantity of the particulate coating material. The capsules are sequentially fed into a stripping chamber where the tape is clamped between inlet and outlet manifolds which provide a circumferential seal around the respective capsules so that pressure can be applied to an inlet face of the capsule. The inlet face is so configured as to admit air into the interior of the capsule which then swells and bursts the outlet face or otherwise passes through the outlet faces. The air pressure then injects the particulate material into the combustion chamber while the pressure in the combustion chamber is near the peak produced by combustion.