Bizarre Patents
Pizza Pie With Concentric Rings of Crust
A pizza mold for forming a plurality of concentric raised ridges of dough (i.e., crust) on the surface of a pizza pie.
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| Number | Title | Issue Date |
| 7267139 | Valve device The invention relates to a valve device comprising a valve housing (2) with a first and a second flow channel (3a, 3b), and a first and second damper shaft (8a, 8b), which are rotatable relative to the v... | 09/11/2007 |
| 6192922 | Airflow control valve for a clean room An airflow control valve for a clean room having a duct section with a damper positioned within the duct. The damper being capable of an adjustment from an open position to a closed position. The opening and closing of the duct is accomplished through a m... | 02/27/2001 |
| 4836163 | Throttle-butterfly connector piece for an internal combustion engine In the throttle butterfly (2) of a throttle-butterfly connector piece of an internal combustion engine there is provided an expansion member (5) which has two arcuate pieces (6,7) which extend out of the circumferential surface of the throttle butterfly (... | 06/06/1989 |
| 4662394 | Tight shut-off valve with flow control element A flow control apparatus for use primarily in plug-type and ball-type valves provides means for continuously varying the flow rate of fluid through the valve while using the same operator that is used to control the open and closed position of the valve. ... | 05/05/1987 |
| 4577662 | Plug valve equipped with pressure equalization means Disclosed is a plug valve comprising displacement means (5) allowing equalization of upstream and downstream pressures existing on the plug (3), said equalization means being applied before the plug has been moved.... | 03/25/1986 |
