Receptacles – Closures – Pivotable
Reexamination Certificate
2006-05-23
2011-11-22
Stashick, Anthony (Department: 3781)
Receptacles
Closures
Pivotable,
C220S216000, C220S219000
Reexamination Certificate
active
08061552
ABSTRACT:
A storage tank with a full-contact floating roof is provided with automatic drains that have drain openings that are elevated above the top surface of the deck of the roof. Tilting mechanisms are used to tilt the deck toward the drains, causing liquid on the deck surface to pool at the drains, rising to the level of the drain openings. Cables connected to elevated portions of the tank can be used to tilt the deck from above, and landing supports can be used to tilt the deck from below.
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Dec. 11, 2007 international search report issued in connection with international application No. PCT/US2007/011274.
Dec. 11, 2007 written opinion issued in connection with international application No. PCT/US2007/011274.
Rigid-piped drain systems (described in IDS and illustrated in the figure at the top of p. 2 of IDS).
Central open-drain systems (described in IDS and illustrated in the figure in the lower left of p. 2 of IDS).
Raised open-drain systems (described in IDS and illustrated in the figure in the lower right of p. 2 of IDS).
Reverse-slope open-drain system (described in IDS and illustrated in the figure on p. 3 of IDS).
Written Opinion issued from the Australian Patent Office for related Singaporean Application No. 200807690-3; dated Oct. 7, 2009 (7 pages).
Examination Report issued by the State Intellectual Property Office of the P.R. China in related Application No. GCC/P/2007/8369; Dated May 18, 2010 (5 pages).
Chicago Bridge & Iron Company
Osha • Liang LLP
Stashick Anthony
Volz Elizabeth
LandOfFree
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