Bizarre Patents
Combination Beverage Container and Spittoon
A combination beverage container and spittoon includes a bottom portion including outer wall and a first inner wall defining a spittoon space.
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| Number | Title | Issue Date |
| 5360198 | Valve for clean chemical reactor A vessel including an emptying means which comprises a valve housing means integral with and fixed to the vessel; a valve body means removably mounted to the valve housing means; a means for sealing the valve body means to the valve housing means; and a v... | 11/01/1994 |
| 5275501 | Quick opening manhole cover assembly for use with virtually any shape manhole cover A quick opening manhole cover assembly is provided which is suitable for use with virtually any shape manhole cover of a pressure vessel. The assembly broadly includes a manhole cover having outer dimensions which are less than the inner dimensions of the... | 01/04/1994 |
| 5069423 | Valve for clean chemical reactor A vessel including an emptying means which comprises a valve housing means integral with and fixed to the vessel; a valve body means removably mounted to the valve housing means; a means for sealing the valve body means to the valve housing means; and a v... | 12/03/1991 |
| 5038520 | Manway lift assist The invention relates to an improved balancing aid for a pivotally mounted cover for a manhole comprising means for hinging the cover relative to the manhole so the cover may be rotated about the hinge to expose and cover the manhole; and a spring retaini... | 08/13/1991 |
| 4946304 | Weld joint A weld joint between two structural elements out of different metallic carrier materials is described, in which at least approximately unmixed weld-joint-interface between the two elements made in such a manner, that on the one side of the interface only ... | 08/07/1990 |
| 4796344 | Method for avoiding thermal stresses in glass lined vessels The present invention minimizes the problem of thermal stresses in a glass lined vessel by providing a heat transfer sump in the bottom portion of the vessel. A heat transfer compartment is formed by enclosing the annular space between the exterior portio... | 01/10/1989 |
