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| Seal |
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| Bendable drip cap |
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| Vertical soffit vent |
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| Integral frieze and vented eave structure |
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| System for resurfacing a roof with a cantilever edge |
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| Portable roof anchor |
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Safety tank apparatus for liquid storage
| Details |
Inventors: McGarvey, David C.;
Assignee: Hoover Containment, Inc. (Glen Burnie, MD)
Primary Examiner: Recla; Henry J.
Assistant Examiner: Douglas; Steven O.
Attorney, Agent or Firm: Crowell & Moring LLP
A safety tank apparatus is provided for installation to receive and store a liquid hydrocarbon or hydrocarbons, or the like, and from which the liquid may be withdrawn. It comprises tank structure including an inner metallic tank; an outer metallic tank protectively receiving the inner tank with accessible interior space laterally of the inner tank; a barrier wall between that interior space and the inner wall; an opening in the outer tank sidewall adjacent that interior space; and a closure closing the opening, the closure movable to expose the interior space to access from the exterior; and tank liquid flow control structure accessible through the side wall opening, for controlling filling of the liquid into the inner tank from the exterior of the safety apparatus, and for controlling liquid removal from the inner tank. |
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DETAILED DESCRIPTION In FIGS.
1-3, the safety tank apparatus 10 includes an inner metallic tank 11, which is closed, and an outer metallic tank 12 protectively receiving the inner tank.
The outer tank is upwardly open and has a removable top or cover 24 so that the inner tank may be lowered downwardly into the inner tank to be supported by spaces 14 located between the bottom wall 15 of tank 11 and the bottom wall 16 of tank 12.
Likewise, feet or spacers 17 support the bottom wall 16 on the ground or pavement 18.
Feet 17 are channel-shaped to receive the tines of lift trucks or the like.
Also, the feet allow visual inspection of the bottom of the outer tank and attachment to pavement 18.
The inner tank has a side wall or walls 19 which extend upright in inwardly closely spaced relation from the side wall or walls 20 of the outer tank.
While various tank configurations are possible, each tank preferably has four walls, whereby inner tank 11 has maximum capacity.
See space 21.
All tank walls are typically metallic (thin steel sheet, for example) and walls 19 and 20 extend upright.
The inner tank is closed by a metallic top wall 22, generally near but below the level of lower hinge 31a of a closure 31 for a side opening 30 in an upright wall of the outer tank, for lateral accessibility of controls mounted on that top wall 22, as will appear.
Such controls are generally designated at 23.
Note brackets 185 connecting walls 20 to top wall 22 to position the inner tank in the outer tank.
Cover 24 extends over the inner and outer tanks 10 and 11 to protect the controls 23 and secondary containment spaces 21 and 35.
That cover 24 has a top wall 25 spaced above inner tank top wall 22 (see space or interior 26), and side wall or walls indicated at 27.
The latter are removably attached to the outer tank side walls, as at 27a, rigidizing the overall assembly.
Cover 24 may be square in outline, as shown.
As referred to, the closure 31 (lockable at 31c) is hinge attached to the outer tank front wall to be movable, i
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