Patent US2686853A successfully refreshed from Google Patents.
Patent US4809866A successfully refreshed from Google Patents.
US4809866A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spill-containment device
Assignee: BURT EQUIPMENT Co Inc WESTMINSTER STATION VT A CORP OF VT
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Filing: 1987-05-18
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Granted: 1989-03-07
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Expires: 2007-05-18
Abstract
Abstract A spill-containment device for use in connection with the fill-pipe for a liquid storage tank, which includes a spill container installed around the upper end of the fill-pipe and sealed thereto so that it does not leak liquid spilled into the container when the storage tank is being filled by means of the unloading hose of a delivery truck. The upper end of the spill container is open for access to the fill-pipe and has a manhole cover. The seal between the bottom of the spill container and the fill-pipe includes an elongated flexible boot which is fastened at its upper end to the fill-pipe by means of a stainless steel hose clamp and at its lower end to an upstanding flange aligned with an opening in the bottom of the container through which the fill-pipe extends. The open end of the spill container has a novel channel-forming rim for preventing surface water from entering the spill container while at the same time holding the manhole cover in place. A hand-pump is also provided for removing the spilled liquid in the container.
Inventors
- 👤 Weyman S. Crocker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:04
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/10; B65D90/105
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
222 words
In a spill-containment device for holding a fluid spilled while filling an underground storage tank having a fill-pipe extending upward substantially to ground level, the combination comprising a container having a side-wall and a bottom having an opening therein for receiving the upper end of said fill-pipe, said side-wall having an upper edge and the upper end of said container being open for access to said fill-pipe, said container being adapted for underground installation with said upper edge of said side-wall disposed below the surface surrounding said container, a removable cover for closing said open end supported on said upper edge of said side-wall with its upper surface substantially level with said surrounding surface, means for sealing said fill-pipe within said opening in said bottom, a channel-forming rim fixed to the outer surface of said side-wall and surrounding the upper edge thereof for preventing surface water and debris from entering said container, said channel-forming rim comprising a first leg-portion which is substantially continuous and disposed substantially horizontally, said first leg-portion having inner and outer edges, said inner edge being fixed to said side-wall below said upper edge thereof and substantially continuous therewith, and a second leg-portion extending upwardly form said outer edge of said first leg-portion to said surrounding surface, and means for draining said surface water and debris from said channel.
Claim 2
Dependent Claim
222 words
In a spill-containment device for holding a fluid spilled while filling an underground storage tank having a fill-pipe extending upward substantially to ground level, the combination comprising a container having a side-wall and a bottom having an opening therein for receiving the upper end of said fill-pipe, said side-wall having an upper edge and the upper end of said container being open for access to said fill-pipe, said container being adapted for underground installation with said upper edge of said side-wall disposed below the surface surrounding said container, a removable cover for closing said open end supported on said upper edge of said side-wall with its upper surface substantially level with said surrounding surface, means for sealing said fill-pipe within said opening in said bottom, a channel-forming rim fixed to the outer surface of said side-wall and surrounding the upper edge thereof for preventing surface water and debris from entering said container, said channel-forming rim comprising a first leg-portion which is substantially continuous and disposed substantially horizontally, said first leg-portion having inner and outer edges, said inner edge being fixed to said side-wall below said upper edge thereof and substantially continuous therewith, and a second leg-portion extending upwardly form said outer edge of said first leg-portion to said surrounding surface, and means for draining said surface water and debris from said channel.
Claim 3
Dependent Claim
29 words
A spill-containment device as defined in claim 1, wherein said channel-forming rim is fabricated out of standard angle iron, the legs of which form said first and second leg-portions.
Claim 4
Dependent Claim
81 words
A spill-containment device as defined in claim 2, wherein said container is rectangular and consists of four of said side-walls, said channel-forming rim comprising four sections of said angle iron with said inner edge of each of said horizontal leg-portions welded to the outer surface of one of said side-walls, the ends of said first leg-portion of each of said sections being mitered and both said leg-portions of each section being welded at their ends to adjacent ones of said sections.
Claim 5
Dependent Claim
27 words
A spill-containment device as defined in claim 1, wherein said means for draining surface water from said channel comprises at least one hole in said first leg-portion.
Claim 6
Dependent Claim
47 words
A spill-containment device as defined in claim 4, wherein said means for draining water from said channel further comprises a tube disposed below said hole and extending downward to the bottom of said container, said tube being fixed to the outside of said side-wall of said container.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-03-06 | 1992-09-05 | 1993-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-03-06 | 1996-09-05 | 1997-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-03-06 | 2000-09-05 | 2001-03-07 | $7700.00 | Window Closed / Lapsed |