Receptacles – Closures – With condition responsive vent or valve
Reexamination Certificate
2007-04-10
2007-04-10
Stashick, Anthony D. (Department: 3781)
Receptacles
Closures
With condition responsive vent or valve
C220S203130, C220S367100, C220S371000, C220S601000
Reexamination Certificate
active
10718033
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 an outer sealing band surrounding the openings of the vent passages. The membrane structure may be further affixed with one or more cross sealing bands extending across the membrane. A portion of the membrane structure may be 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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Entegris, Inc.
Patterson Thuente Skaar & Christensen P.A.
Smalley James
Stashick Anthony D.
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