Drum vent

A technology of air vents and drums, which is applied in the field of air vent devices, and can solve problems such as loss of air vent performance, condensation of chemicals, and drying out
CN100343137CInactive Publication Date: 2007-10-17ENTEGRIS INC
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Patents(China)
Current Assignee / Owner
ENTEGRIS INC
Publication Date
2007-10-17
Estimated Expiration
Not applicable Ā· inactive patent

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Abstract

A venting device for a drum. The venting device includes a body having a pair of opposing sides and defining a plurality of vent passages. The vent passages extend through the body and each an opening at each of the pair of opposing sides. The vent passages are spaced apart and arranged around a center portion of the body. A membrane structure is positioned so as to cover the openings of the vent passages on one of the pair of opposing sides of the body. The membrane structure is sealingly affixed to the body portion in a sealing band surrounding the openings of the vent passages. A portion of the membrane structure is further affixed to the center portion of the body. A protective structure may be attached to the body and positioned over the membrane structure.
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Description

[0001] This application claims the benefit of U.S. Provisional Patent Application Serial No. 60 / 422,433, filed October 30, 2002, and entitled "Vent Plug," which is hereby incorporated by reference in its entirety. technical field

[0002] The present invention relates to venting of drums, and more particularly to a venting device for drums. Background technique

[0003] Drums, barrels, and other containers are commonly used to store, transport, and dispense chemicals and industrial fluids. An example of such a drum is disclosed in US Patent No. 6,045,000 held by the proprietor of the present invention and incorporated herein by reference in its entirety. In some industries, such as semiconductor processing, the contained fluids may be highly volatile and may contain vapors or gases which will build up pressure within the container until vented. An example of such a fluid is hydrogen peroxide, which will contain oxygen. Also, like hydrogen peroxide, these fluids may be toxi...

Claims

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