Fuel and chemical containers with vapor filtration

摘要

The present invention provides a chemical container or system for storing and dispensing chemicals, and in particular liquid chemicals such as fuels and the like. The chemical container has a first container portion for storing the chemical itself, and a second container portion with a vapor filter for receiving, containing, and filtering or adsorbing gases or vapors that are associated with the chemical and which may be vented from the first container portion. This dual-chamber system avoids buildup of excessive vapor pressures inside of the containers, but filters any vented gases so that noxious or undesirable vapors are not emitted into the surrounding environment. In some embodiments, the second container portion covers only a portion of the first container portion, while in other embodiments, a second container completely surrounds a first container.

主权项

1. A portable chemical container with vapor filtration, said chemical container comprising:
a first container defining a first chamber for storing a chemical, and said first container configured to selectively dispense the chemical; a second container surrounding at least a portion of said first container and defining a second chamber between at least a portion of said second container and said portion of said first container that is surrounded by said second container, said second chamber for containing a gaseous vapor of the chemical from said first container, and said second container having at least one wall portion and an openable and closable portion; a vapor filter at said at least one wall portion of said second container, said vapor filter in fluid communication with said second chamber and with the ambient environment; and wherein said vapor filter is configured to adsorb the gaseous vapor of the chemical from said second chamber and to vent filtered or cleansed air to the ambient environment.