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 |
| 4168752 | Flexible conduit for effecting lateral channelling in coal or oil shale beds There is provided in accordance with the invention apparatus and a method for boring holes through carbonaceous deposits. The method involves the step of introducing combustion-supporting gases such as air under pressure through the apparatus installed in a we... | 09/25/1979 |
| 4151865 | Flexible tube particularly for drillings, and a process for manufacturing said tube (a) A flexible tube particularly for drillings, and a process for manufacturing said tube. (b) A tube wherein each ring has a male portion and a female portion, the male portion of a ring being designed to fit in the contiguous female portion, said male a... | 05/01/1979 |
| 4149391 | Flexible drill pipe According to the invention a flexible drill pipe constructed of a closed pitch cylindrical spiral coil of wire rod, a female tool joint is attached to one end of the coil of wire rod and a male tool joint is attached to the other end. A plurality of wire ... | 04/17/1979 |
| 4137948 | Intermediate conduit between two pivotally connected conduits An intermediate conduit extends between and interconnects adjacent pivotally connected ends of a pair of conduits. The intermediate conduit is disposed in at least one turn about the pivotal interconnection, and the distance between the ends of the interm... | 02/06/1979 |
| 4132285 | Connecting line within an exhaust system of a motor vehicle A connecting line or exhaust pipe for disposal within the exhaust system of a motor vehicle driven by an internal-combustion engine between the exhaust manifold of the engine and the muffler. The connecting line is formed of two bowl-shaped sheet metal ha... | 01/02/1979 |
| 4111236 | Transmission line carrier A self-supporting transmission line carrier between a moveable consumer and a stationary connection comprising a row of tubular members of any selected cross-sectional shape which are pivotally connected with one another and engage in one another. The tub... | 09/05/1978 |
| 4108211 | Articulated, four-way bendable tube structure An articulated tube structure to be arranged next to the head of a fiberoptic endoscope to permit same to be tilted in either of four different directions by manipulation of pull wires. The tube structure comprises a series of relatively short elementary ... | 08/22/1978 |
| 4074553 | Laying pipe In a rolling mill, a rotatable laying pipe having at least one curved tubular pipe section with entry and exit ends. Replaceable tubular liner members are arranged in end-to-end relationship in each pipe section. Retainers are provided at the entry and ex... | 02/21/1978 |
| 4031713 | Flexible drill pipe According to the invention a flexible drill pipe constructed of a closed pitch cylindrical spiral coil of wire rod with a floating core of tube sections constructed the same positioned end to end but not attached through the hollow center of the coil of w... | 06/28/1977 |
| 4023834 | Push-type coupling and conduit pipe assembly Lengths of pipe are joined together in above- or below-ground telephone conduit systems by flexible sleeves having specified coefficient of friction, column expansibility and pull-out resistance and containing helically oriented high modulus reinforcement... | 05/17/1977 |
