Abstract: A dual function safety valve is designed to automatically stop a flow of fluid through the valve in response to the valve being subjected to a minimum impact force or excessive vibration and in response to the valve being subjected to heat above a predetermined minimum temperature.

Abstract: A dual function safety valve is designed to automatically stop a flow of fluid through the valve in response to the valve being subjected to a minimum impact force or excessive vibration and in response to the valve being subjected to heat above a predetermined minimum temperature.

Abstract: A remotely operable drum punch for puncturing a drum or container containing hazardous waste, chemicals, or acid consists of a drive which drives a punch head and self-admixing arms for securing the drum punch to the drum. The drive is remotely operable to drive both the self-affixing arms and the punch head so that the drum punch may be secured to the drum from afar. The punch head includes a collar, which may be movable, to form a seal with the top of the drum. The punch head also includes bores to allow the sampling, testing and exhausting of the drum's contents or to introduce agents, such as neutralizing or foaming or gelling agents, into the drum to neutralize or solidify the drum's contents. Inert gases can also be introduced into the drum.

Abstract: A fibrous board is formed by conventional water laid techniques such as the utilization of a Fourdrinier machine. After the board has formed and has been consolidated, it is subjected to a vacuum action to remove additional water from the wet board structure just prior to the time the wet board structure moves into an oven where final board drying is carried out.