Pressurized container and method of filling it
AssigneeHilti Aktiengesellschaft
InventorKaveh Towfighi
Life of this patent
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Abstract
A pressurized container (1) with crimped surfaces (2, 2′, 2″) at contact regions (3, 3′) on the two surfaces (2, 2″, 2′, 2″) are sealed gas-tight by crimping and with a gas-tight sealing compound (4) as an intermediate layer between the two surfaces (2-2′, 2′-2″). The gas-tight sealing compound (4) is applied between the surfaces (2-2′, 2′-2″) of the pressurized can (1) before the crimping.
Claims7
A pressurized container for dispensing gaseous propelled contents, comprising a pot-shaped container (1) having an open end with an annular surface (2), a valve disc forming a closure for said open end and comprising a radially outer surface (2′) for contact with said annular surface (2) of said container and a radially inner surface (2″) for contact with a radially inner annular surface of a dispensing valve (5), a flowable gas-tight sealing compound positioned at a first contact region (3) between said radially outer surface (2′) of said valve disk and said annular surface (2) of said container and at a second contact region (3′) between said radially inner surface (2″) of said valve disc and said annular surface of said dispensing valve and at least partially forms an intermediate layer therebetween and where said first and second contact regions are crimped together to form a gas-tight seal.
A method of filling a pressurized container with contents to be dispensed by gaseous propulsion comprising the steps of applying a flowable gas-tight sealing compound to at least one annular abutting area of the pressurized container and a valve disc for an open end of the container, crimping the abutting area of the pressurized container and valve disc, and as a final method step, filling the pressurized can with the contents to be dispensed, after at least the step of applying the sealing compound heating the pressurized container.
Dependencies are inferred from the claim text.