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 |
| 5209281 | Anti-jamming safety device for a curtain-type door having reinforcing bars A vertically-raisable door for industrial use includes a curtain 4 reinforced by bars 5 whose ends are guided in slideways, each comprising a web 7 and two guide walls 8, 9. The width of each slideway is reduced at its bottom end by a filler component 20 ... | 05/11/1993 |
| 5209282 | Vertical blind with corrugated surface There is disclosed a blind slat to be used particularly for vertical blinds wherein at least the outer surface is formed with regularly distributed successive corrugations. In practice, the inner face is also corrugated. The slat is extruded from a plasti... | 05/11/1993 |
| 5209283 | Roll and/or roller for machines of continuous casting The roll and roller has a core with a threaded on sleeve of differently radially high threads such that the crown or head of one thread reaches the bottom/foot of the thread groove way of the other, but not vice versa so that a spiral channel is establish... | 05/11/1993 |
| 5209284 | Reduced pressure heat treating device A heat treating device used in chemical and food industries, including a heat exchanger of jacket type, for example, which surrounds a reaction vessel, wherein heat media such as steam and water are fed to the heat exchanger and also sucked by sucking mea... | 05/11/1993 |
| 5209285 | Inclined tube radiator An inlet air passage in the aerodynamically configured front end of a motor vehicle directs an inlet air stream at an inclination upwardly from the bottom of the front end of the vehicle and across a radiator for cooling engine coolant and wherein the rad... | 05/11/1993 |
| 5209286 | Ground open-air heat exchange, open-air conditioning system, and method An underground air conditioning apparatus for underground cooling outside air directed into a space comprising an open-air inlet for admitting outside air including air quality control apparatus including an above ground intake and a below ground outlet m... | 05/11/1993 |
| 5209287 | FCC catalyst cooler A catalyst cooler arrangement for an FCC regenerator improves the operation of the cooler by the use of a full or partial screen arrangement at the cooler outlet of the regenerator to remove material that interferes with the operation of the cooler and es... | 05/11/1993 |
| 5209288 | Interrupted monogroove slot An interrupted monogroove slot in a heat pipe facilitates priming of the heat pipe under zero gravity conditions by preventing the monogroove slot from completely priming before the liquid channel is primed.... | 05/11/1993 |
| 5209289 | Lanced ruffled turbulizer A heat exchanger combines a lanced fin surface with a ruffled fin surface to create a lanced ruffled turbulizer. The lanced ruffled turbulizer combines the turbulence generated by lancing the heat transfer or turbulizer surface to the deflection forces on... | 05/11/1993 |
| 5209290 | Heat exchanger A heat exchanger body is connected in fluid communication with external tubing via tube fittings. The tube fittings are supported by a supporting member that is brazed to the heat exchanger body. The supporting member can securely support the tube fitting... | 05/11/1993 |
| 5209291 | Cooling apparatus for optical devices An internally-cooled optical device 10 includes a manifold 14 having two oppositely disposed coolant input ports 18 and two oppositely disposed coolant output ports 20. The input and output ports are positioned perpendicular to each other. The input coolant fl... | 05/11/1993 |
| 5209292 | Condenser header and tank assembly with interference fit baffle A parallel flow vehicle air conditioning condenser utilizes baffle plates with an interference fit. The baffle plates locate within header and tank assemblies. Parallel tubes extend between the header and tank assemblies for causing refrigerant flow betwe... | 05/11/1993 |
| 5209293 | Apparatus for fluidizing formation fines entrained in formation fluids entering a production well penetrating an oil-bearing formation A production well penetrating a subsurface oil-bearing formation utilizes perforations in well casing through which formation fluids enter the well. Production tubing extends from the surface of the earth to a position below such perforations. A pump is p... | 05/11/1993 |
| 5209294 | Rotor placer for progressive cavity pump A progressive cavity pump is used as part of the production string in an oil well. A pump stator is coupled to the production tubing string, while the rotor is driven by a sucker rod. To ensure proper placement of the rotor in the stator, the rotor is dri... | 05/11/1993 |
| 5209295 | In-situ reduction of oil viscosity during steam injection process in EOR A method for lowering the viscosity of a heavy hydrocarbon in situ in a well formation so as to improve well production wherein the heavy hydrocarbon has an API gravity in the range between 6° and 12° and a dynamic viscosity in the range between 300 and... | 05/11/1993 |
| 5209296 | Acidizing method for gravel packing wells A method for producing substantially sand or fines free hydrocarbonaceous fluids from a wellbore which is initially gravel packed. Thereafter, an acid is directed into the wellbore so as to dissolve formation fines in channels contained in perforations co... | 05/11/1993 |
| 5209297 | Method of drilling through a high temperature formation An improved drilling fluid for use in a drilling operation. A drilling rig has a drill string for forming a borehole while drilling fluid flows down the drill string to a drill bit and back up the borehole annulus to a mud pit. The improved drilling fluid... | 05/11/1993 |
| 5209298 | Pressurized chemical injection system An apparatus and method for injecting chemicals into a hydrocarbon producing well is disclosed. The invention includes a valve attached to a vessel. A chemical is contained by the vessel, and a pressurized gas in the vessel pressurizes the chemical. The v... | 05/11/1993 |
| 5209299 | Multiple chamber chemical injection system An apparatus and method for injecting chemicals into a hydrocarbon producing well is disclosed. The invention includes a vessel which is divided with a baffle into a first chamber and a second chamber. The chemical is installed in the first chamber, and a... | 05/11/1993 |
| 5209300 | Pressure regulated chemical injection system An apparatus and method for injecting chemicals into a hydrocarbon producing well is disclosed. The invention includes a vessel which holds the chemical and a pressurized gas which exerts a pressure on the chemical. A pressure regulator and a valve select... | 05/11/1993 |
| 5209301 | Multiple phase chemical injection system An apparatus and method for injecting chemicals into a hydrocarbon producing well is disclosed. The invention includes a first vessel for containing the chemical, a second vessel for containing a pressurized gas, a conduit for permitting the pressurized g... | 05/11/1993 |
| 5209302 | Semi-active heave compensation system for marine vessels A semiactive heave compensation system for marine vessels, especially floating offshore drilling rigs, is described. The system can be installed in its entirety or can be used to modify existing passive systems by including heave and compensating sensors ... | 05/11/1993 |
| 5209303 | Compressible liquid mechanism for downhole tool An annulus pressure responsive downhole tool includes a housing with a power piston slidably disposed therein. First and second pressure conducting passages communicate a well annulus exterior of the housing with first and second sides of the power piston... | 05/11/1993 |
| 5209304 | Propulsion apparatus for positioning selected tools in tubular members A propulsion apparatus is provided for attachment to a selected tool for propelling and positioning the tool in a tubular member in response to fluid pressure in the tubular member and includes a tubular mandrel terminating in a lower free end, a tubular ... | 05/11/1993 |
| 5209305 | Automated apparatus for removing transplant size seedlings An apparatus for removing tobacco transplant seedlings from a plant bed by being connected to a tractor and pulled thereacross. An undercutter bar is provided at the front of the apparatus for undercutting a ribbon of soil which is then received by a conv... | 05/11/1993 |
| 5209306 | Turf aerator with improved bearings for lateral tine movement An apparatus for aerating turf including a mounting frame (11) for mounting the apparatus to the hydraulic lift system (12) of a utility tractor. A trailer support frame (13) is pivotably mounted to the mounting frame (11) so as to enable the trailer supp... | 05/11/1993 |
| 5209307 | Rear mounted grader for vehicles A rear mounted grader for vehicles comprises a plate member adapted to be vertically secured to the vehicle frame behind the wheels. A pair of rearwardly extending arms are pivotally mounted on the plate member and are provided with a sliding member secur... | 05/11/1993 |
| 5209308 | Power driven screwdriver A power driven screwdriver includes a device interposed between a spindle and a housing for preventing rotation of the spindle. The device includes a first member and a second member. The first member is disposed on the spindle and is rotatable therewith.... | 05/11/1993 |
| 5209309 | Triangular core cutting tool A sidewall coring device includes a housing (12) which is operable to be disposed on the end of a drill string. A core tube (18) is disposed on one side of the housing on the interior thereof with an opening (20) provided for receiving core material. A co... | 05/11/1993 |
| 5209310 | Corebarrel A system is described which enables the safe release of formation gases when corebarrel is being raised. A corebarrel has an elongate cylindrical outer casing (1) and an elongate cylindrical liner (2), the liner (2) being disposed within the outer casing ... | 05/11/1993 |
| 5209311 | Drill string component Drill string component for top hammer drilling comprising a rod (13) surrounded by a tube packet (4,5). The rod is provided with a thickened section (14) for cooperation with a diameter reduction (15) in the tube packet which at upwards drilling is situat... | 05/11/1993 |
| 5209312 | Method of collecting and recording refuse A method of recording refuse in a container, where the refuse is poured into a container suspended in weighing cells on a refuse collection truck makes the weighing cells give an input to a computing device which calculates and records the weight of the r... | 05/11/1993 |
| 5209313 | Lift weighing Lift weighing arrangements in which arms to lift supports carry strain gauges.... | 05/11/1993 |
| 5209314 | Riding-type working machine A riding-type working machine includes a machine frame defining an engine compartment in a front portion thereof, an engine mounted in the engine compartment, a steering column in the form of a framework vertically mounted on the machine frame behind said... | 05/11/1993 |
| 5209315 | Electromotive power steering It is proposed in the case of an electromotive power steering as a steering aid for motor vehicles and similar, particularly for the speed range during parking (parking power steering), having a reduction gear between the servo-motor and the steering colu... | 05/11/1993 |
| 5209316 | Truck cab suspension unit A suspension unit for supporting a cab on the chassis of a truck has two U-shaped yokes, one with arms extending down and the other with arms extending up. The arms of one yoke are nested within the arms of the other in a sliding fit and a bearing in a ve... | 05/11/1993 |
| 5209317 | Electro-hydraulic vehicular power steering system with closed center valving An electro-hydraulic power steering system for motor vehicles using closed center valving. Utilizing closed center valving (40) in association with the steering gear (50) allows the pump (12) to build hydraulic pressure in the accumulator (20) against the... | 05/11/1993 |
| 5209318 | Constant-speed cruising system for a vehicle The main switch is turn on to supply electricity to the control unit for constant-speed crusing control, and a target vehicle speed is set on the basis of an instruction signal from a set switch. The constant-speed cruising control is executed so as for t... | 05/11/1993 |
| 5209319 | Motorcycle front suspension A motorcycle front wheel suspension assembly for interconnecting the main frame and the front wheel of a motorcycle includes a main strut having upper and lower portions with the lower portion connected to the front wheel and a secondary strut that is sub... | 05/11/1993 |
| 5209320 | Offroad agricultural vehicle with articulated steering An offroad agricultural vehicle of the type operable to be used as a crop pesticide sprayer, fertilizer distributor and the like including a first frame having at least one load bearing ground engaging wheel and at least one wheel having an axis of rotati... | 05/11/1993 |
