Baffled fluid tank with stairway access
US9707881B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2012 |
| Grant date | Jul 18, 2017 |
| Priority date | — |
| Expiry date | Jan 19, 2034 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB65D2590/0091
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tank for transporting fluids on a truck chassis includes a front wall, side walls, a back wall, a top, and a floor. Interior stairs extend from the floor to an opening in the top to allow stair access into the interior with integrated safety handrails on the fill port cover. Stair toe kicks act as internal transverse baffles to help control fluid motion and surging. The stairs also act as a structural stiffener between longitudinal baffles. Horizontal baffles assist in controlling fluid motion and surging. Formed baffles provide strength and stiffness. A baffle interlocking system improves joint integrity and aids manufacturing. Formed outer skins provide structural strength for the tank. Ports located in front and rear bulkheads may be used for tank ventilation or, depending on local safety codes, as secondary access points.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.