Abstract: A dike wall section for assembling a dike wall is taught. The dike wall section has an elongate body, a pin at a male end of the body; and a socket at the female end of the body, the pin and socket being operable to connect additional sections to the first section by a pin-in-socket connection having a vertical axis.

Abstract: A wedge lock clamping assembly, system and method wherein the module to be clamped in a slot in a chassis has a pair of wedge surfaces oppositely inclined to spaced-apart side surfaces of the slot. The clamping assembly comprises a pair of wedge elements on opposite sides of a movement axis and each wedge element is configured to be disposed within the slot between a respective wedge surface of the module and a respective side surface of the slot. An actuator operates to forcibly urge the wedge elements along the movement axis for causing the wedge elements to be wedged between the respective wedge surfaces of the module and respective side surfaces of the slot for clamping the module in the slot.

Abstract: A toy vehicle includes a body and a left front wheel, a right front wheel, a left rear wheel, and a right rear wheel, with each of these wheels being coupled with the body and rotatable relative to the body. The toy vehicle also includes a caster assembly that includes a swivel-type caster. The swivel-type caster is coupled with the body and includes at least one rotatable wheel. The swivel-type caster is swivelable relative to the body and is movable vertically relative to the body between a raised position and a lowered position.

Abstract: A toy vehicle includes a body and a left front wheel, a right front wheel, a left rear wheel, and a right rear wheel, with each of these wheels being coupled with the body and rotatable relative to the body. The toy vehicle also includes a caster assembly that includes a swivel-type caster. The swivel-type caster is coupled with the body and includes at least one rotatable wheel. The swivel-type caster is swivelable relative to the body and is movable vertically relative to the body between a raised position and a lowered position.

Abstract: Provided is an injector having a plurality of micro-mixing nozzles having axes thereof pointing radially inwardly or outwardly with respect to a main axis of the injector and a plurality of micro-mixing nozzles having axes thereof extending axially with respect to the main axis of the injector. The arrangement of micro-mixing nozzles provides a means for fast and efficient mixing of fuels, such as highly reactive fuels including hydrogen. The arrangement of micro-mixing nozzles also achieves low NOx emissions.

Abstract: A wedge lock clamping assembly, system and method wherein the module to be clamped in a slot in a chassis has a pair of wedge surfaces oppositely inclined to spaced-apart side surfaces of the slot. The clamping assembly comprises a pair of wedge elements on opposite sides of a movement axis and each wedge element is configured to be disposed within the slot between a respective wedge surface of the module and a respective side surface of the slot. An actuator operates to forcibly urge the wedge elements along the movement axis for causing the wedge elements to be wedged between the respective wedge surfaces of the module and respective side surfaces of the slot for clamping the module in the slot.