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 |
| 4211277 | Heat exchanger having internal fittings The heat exchanger is constructed with a plurality of fittings which are disposed in the flow passage. Each fitting is constructed of at least two groups of webs with the webs of each group disposed in spaced parallel relation and in angular relation to t... | 07/08/1980 |
| 4208136 | Static mixing apparatus An apparatus for mixing materials having no moving parts in which a plurality of mixing elements are arranged in parallel around the inner periphery of a conduit. The elements are held in place around the periphery by a support member which is positioned ... | 06/17/1980 |
| 4202182 | Multi-tube evaporator for a cooler used in an automobile A multi-tube evaporator for a cooler used in an automobile is provided with a columnar member tightly inserted in the evaporating tube at its inlet. A spiral groove is engraved on the surface of the columnar member. The spiral groove serves as a capillary... | 05/13/1980 |
| 4201246 | Pressure accumulator A pressure accumulator for a hydraulic system includes a rigid container whose cavity contains a partition of pliable, resilient material which seals one compartment adjacent the bottom wall of the container from another compartment containing a gas under... | 05/06/1980 |
| 4200149 | Heat exchanger with fluid turbulator A serpentine or parallely formed conduit is fixed within a support and is further joined on its exterior surfaces by a plurality of fins. The fins have a plurality of louvered cups which define openings in the fins so that air or other heat transfer mediu... | 04/29/1980 |
| 4191480 | Continuous flow static mixer for mixing powder and/or suspension materials with liquid materials A static mixer for continuously mixing powder or suspension materials with liquid materials, especially explosive components, includes a toroidal mixing chamber having a central pipe nozzle inlet for pressurized powder/suspension material and annular coni... | 03/04/1980 |
| 4189985 | Fabric-lined epoxy resin cylinder with lubricant retaining grooves A woven seamless sleeve including axial yarns forms the inner face of an epoxy resin cylinder for an air operated linear actuator. Under certain conditions, a minute, internal, spiral groove develops in applying the resin. In the operation of the actuator... | 02/26/1980 |
| 4180096 | Fill valve A fill valve for controlling liquid level in a toilet tank or other tank includes a housing with an inlet, an outlet, a valve, and a level sensing mechanism for opening the valve to permit flow when the liquid level is below a predetermined value. A flow ... | 12/25/1979 |
| 4179222 | Flow turbulence generating and mixing device A device for generating special turbulence patterns in fluids flowing in pipes, such as for mixing, promoting chemical reactions, or accelerating the transfer of heat to or from the fluid through the pipe wall. Two or more sets of flow dividers are mounte... | 12/18/1979 |
| 4176636 | Internal combustion engine having exhaust emission control system Air bleeding apparatus for an exhaust emission control system comprising three plates joined face to face. The first plate has a plurality of grooves each communicating at one end with a vacuum source and at the other end with a vacuum actuator for an ign... | 12/04/1979 |
| 4175882 | Hose conduits for drip- or trickle emission A hose conduit comprises an inner tubular fluid conducting space which is surrounded by a ringshaped space. Openings are provided in the wall of the inner hose leading into the ringshaped space. In the ringshaped space is provided a longway passage extend... | 11/27/1979 |
| 4165764 | Valve A valve comprises a tube having an inner wall surface inwardly stepped to provide a ribbed peripheral seat in a plane perpendicular to the axis of the tube and between inlet and outlet chambers bounded by tube lengths of relatively greater and relatively ... | 08/28/1979 |
| 4159881 | Turbulent flow conveying device for a mixture A mixing device for conveying a fuel mixture into the inlet manifold of a combustion engine formed by an outer casing having an inlet pipe for the fuel components to be treated connected to the casing. A system of inclined blades is disposed in the casing... | 07/03/1979 |
| 4155376 | Lift brake for exhaust water for a vertical drain pipe system The invention relates to a lift brake for exhaust water capable of installation in a vertical drain pipe system.... | 05/22/1979 |
| 4152030 | Brake with anti-locking and reapplication control and method Apparatus for braking a rotating member which has a fluid pressure responsive brake to which pressurized fluid is supplied for braking the rotating member, an anti-locking device interposed between the brake and the source of supply of fluid pressure for ... | 05/01/1979 |
| 4135829 | Homogenizer A plurality of identical cell rupture valve assemblies are connected in tandem to produce increased homogenization effectiveness.... | 01/23/1979 |
| 4134523 | Vented piston for barrier pressure containers A piston apparatus used with a barrier pressure container for dispensing flowable material. The portion of the piston which engages the material to be dispensed is vented to prevent the entrapment of gases when the container is being filled with the flowa... | 01/16/1979 |
| 4133485 | Atomizer and uses thereof An atomizing device for mixing or atomizing fluids without moving parts and comprising, in combination, a hollow tube which has a substantially cylindrical inner wall and a core member situated within the tube in substantial coaxial relationship with and ... | 01/09/1979 |
| 4130173 | Apparatus and method for reducing flow disturbances in a flowing stream of compressible fluid Disclosed are methods and apparatus for reducing acoustic noise generated by high pressure ratio throttling of compressible fluids. High pressure gas is passed through a plurality of chokes, each adapted to cause an incremental pressure reduction and prod... | 12/19/1978 |
| 4127146 | High energy loss device A more compact high energy loss device is provided having a series of uniquely formed multiturn labyrinth assemblies which reduce the pressure of a fluid flowing therethrough. The inlet of the labyrinth assemblies is formed according to a substantially ci... | 11/28/1978 |
| 4118173 | Unidirectional seal for flow passages A seal for flow passages has directional characteristics allowing gases or fluids to flow freely in one direction while restricting the flow in the opposite direction. The seal includes a flow diverter cone (or other inclined surface) which is spacedly mo... | 10/03/1978 |
| 4109680 | Plate type fluid distributing device A device for distributing fluid from an inlet to an outlet, in which a series of plates in stack configuration provides a continuously subdividing fluid flow path between the inlet and the outlet such that the fluid distribution at the outlet is over a su... | 08/29/1978 |
| 4108210 | Control valve trim assembly Described herein are fluid flow control valve trims suitable for use in a valve in which high fluid pressure drops are to be sustained without excessive noise generation or cavitation damage to valve members. The valve trim is constructed of two or more a... | 08/22/1978 |
| 4106525 | Fluid pressure control A fluid flow restrictor is described having a long path length capable of sorbing energy with less noise generation than that normally encountered with conventional fluid flow restrictors of short path lengths. The restrictor is adapted for attachment bet... | 08/15/1978 |
| 4107037 | Method and apparatus for automatic control of filtrate quality A sidestream of injection liquid taken downstream of a filter is passed through a monitoring filter of appropriate pore size. Pressure drop over the monitoring filter is determined and a regeneration cycle for the main filter is triggered in response to d... | 08/15/1978 |
| 4105048 | High energy loss device A more compact high energy loss device is provided having a series of uniquely formed multiturn labyrinth assemblies which reduce the pressure of a fluid flowing therethrough. The inlet of the labyrinth assemblies is formed according to a substantially ci... | 08/08/1978 |
| 4103492 | Reservoir in master cylinder of vehicle braking system A reservoir in a master cylinder for use in a vehicle braking system comprising two or more barrier plates vertically spaced and fitted in the reservoir to partition the interior of the reservoir into three or more chambers. Each of the plates has one or ... | 08/01/1978 |
| 4102359 | Noise suppressor A noise suppressor for reducing noise resulting from venting of large volumes of high pressure gas. A first pipe member has an open first end, adapted for attachment to a high pressure gas outlet, and a closed second end. A plurality of second pipe member... | 07/25/1978 |
| 4084749 | Flow reducing devices particularly useful as drip emitters for drip irrigation Flow-reducing devices particularly useful as drip emitters comprise a housing having a closure cap snap-fitted thereto and enclosing a flow-retarding member formed with a plurality of recesses on opposite faces each recess bridged by a pair of holes to pr... | 04/18/1978 |
| 4079754 | Apparatus for eliminating noise in the flow of fluids A member having first and second opposite ends for a flow of fluid from each end to the opposite end. The member is provided with openings at each end for receiving fluid into the member and for transferring the fluid from the member at the other end. A f... | 03/21/1978 |
| 4079750 | Vacuum delay valve A delay valve comprising a housing including a side wall and opposed end walls and a plug in the housing cooperating with the side wall to define a first and second chamber. A check valve is provided in the plug permitting flow of air in one direction suc... | 03/21/1978 |
| 4072170 | Pressure-relieving device for steam generators and the like The pressure in a high-pressure steam boiler or other pressure fluid tank is occasionally relieved by means of a discharge device having a pressure-relief valve mounted on an ejection conduit opening into a hood connected to a discharge conduit. A break i... | 02/07/1978 |
| 4068389 | Gas-diffusion plate for fluidized bed apparatus The present disclosure relates to a diffusion plate to partition one space from another and pass a gas through ports in the plate in a flow pattern which is uniform over the area of the partition. Specifically, the disclosure relates to a diffusion plate,... | 01/17/1978 |
| 4068683 | High energy loss device A more compact high energy loss device is provided having a series of uniquely formed multiturn labyrinth assemblies which reduce the pressure of a fluid flowing therethrough. The inlet of the labyrinth assemblies is formed according to a substantially ci... | 01/17/1978 |
| 4067361 | Silent self-controlled orificial restrictor An orificial restrictor for use in a ballasting system for an underwater icle utilizing a plurality of multi-holed orifice plates set in series within a casing. A hollow cylinder is slidably positioned within the casing and carries fluid supplied through... | 01/10/1978 |
| 4062424 | Oiler assembly An oiler assembly is disclosed for feeding a relatively precise and consistent lubrication. The assembly includes a supply of the lubricant and a flow line placing the supply in communication with the lubrication point. A metering valve is interposed in t... | 12/13/1977 |
| 4060057 | Water supply pipe for a steam generator The present invention relates to a water supply pipe for a steam generator. The supply pipe comprises the following elements in a substantially horizontal portion (3) thereof: A lower baffle plate (4) defining or limiting an upper opening (7), And an upper baffle p... | 11/29/1977 |
| 4060200 | Drip level irrigation An emitter unit comprises a pair of casing components and a coupling for coupling said components together via an interposed strip that extends beyond the components on all sides and is adapted to form a closed conduit such that one component is inside th... | 11/29/1977 |
| 4060099 | Controlled pressure drop valve A valve having stacked disks with alternate circular grooves in the faces thereof to provide a high pressure drop surface in fluid flow transverse to said grooves and ridges. The disks are circular in shape with a circular center opening to provide a cent... | 11/29/1977 |
| 4054157 | Coupling device for pipes having a convex shaped or straight tubular end A device is disclosed which is adapted to be inserted in the threaded end of the sleeve of a pipe coupling to permit connection of piping thereto having either a convex-shaped end or a straight-tubular end by means of a correspondingly threaded nut which ... | 10/18/1977 |
