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 |
| 4812884 | Three-dimensional double air gap high speed solenoid Disclosed is a solenoid having a central and a peripheral air gap between the armature and the pole piece. The energizating coil is located in the space between the central core and the peripheral portions of the pole piece and armature. In one embodiment... | 03/14/1989 |
| 4660010 | Rotary latching solenoid A rotary latching solenoid of the type in which a permanent magnet causes a flux flow path to be formed between opposing pole faces of an armature and a base in order to hold the armature in an energized or latched position is improved by providing the po... | 04/21/1987 |
| 4470030 | Trip solenoid Trip solenoids are disclosed in which a permanent magnet is positioned exteriorly of the armature case. In one version, a rotary solenoid has a permanent magnet between a ball race plate and the case and has a magnetic force sufficient to hold the rotary ... | 09/04/1984 |
| 4442418 | Trip solenoid An electric trip solenoid employs a pair of low-cost retaining or holding magnets in an open frame arrangement in which the magnets are positioned on opposite sides of the flat surfaces of a pole and in contact with the pole and the legs of an open frame.... | 04/10/1984 |
| 4309582 | Push button switch for a controller In a controller of the type having a body, a pivot member within the body and an actuator shaft on the pivot member, a push button switch for the controller includes a handle fitted over an external end of the shaft and having a longitudinal opening there... | 01/05/1982 |
| 4306208 | Joy-stick controller Mechanical lever controllers, also known as joy-stick type actuators, include a body within which is mounted a rod or lever for pivotal movement. The position of the rod is transmitted by an intermediate coupling or follower member to a differential trans... | 12/15/1981 |
| 4306206 | Linear solenoid device A linear solenoid device includes a stator defining a cylindrical stator opening, and a pair of axially spaced cylindrical stator pole surfaces. An armature is mounted within the stator opening for movement parallel to the stator pole surfaces. The armatu... | 12/15/1981 |
| 4282501 | Bi-directional linear actuator An electromagnetic device includes a stator having first and second closed flux-carrying paths defined by first and second cores, each having a plurality of concentric cylindrical pole surfaces and each defining an air gap opening between the outermost of... | 08/04/1981 |
| 4272748 | Print wire solenoid A high speed axial-type printing solenoid includes a rebound and energy absorbing arrangement which employs a block of energy-absorbing "dead" elastomeric material held in a partially compressed state by an impact plate. The impact plate is mounted to eng... | 06/09/1981 |
| 4235114 | Material testing device A testing device for applying a force to a material test sample includes a test fixture for engaging the test sample and a solenoid, operatively coupled to the test fixture, for applying a predetermined force to the test sample in response to a solenoid c... | 11/25/1980 |
| 4217567 | Tubular solenoid Low cost tubular solenoids are formed with a drawn case in which the pole portion forming the base of the solenoid is defined as an integral inwardly extending part of the case. A coil bobbin is formed by the injection molding of plastic material and is p... | 08/12/1980 |
