| 摘要 |
The object of this invention is a cover for a vessel with large opening, designed to close vessels in which fermentation process can be proceeded or various products can be stored.
Cover according to the invention has on its circumference a ring (2) having inside a profiled border (3) and a cylindrical portion and a lip (5) situated in the proximity of the end of said cylindrical portion, and having, on cover closing surface (1) situated at the height selected according to the design, at least one hole (4), while, on the external side, having a flange (8) with an optional hole (11), and on the cover closing surface (1) having optional strengthening ribs (7) and/or other strengthening elements of any shape.
Cover has a hole (4) in the closing surface, which is situated in the cover axis or outside the axis, where the hole is being shaped in form of short stub pipe of height according to the design needs, and the closing surface (1) is in flat, convex or concave form.
Cover has the closing surface (1) covering the vessel opening which is situated at the height according to design needs.
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