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 |
| 7311149 | Jar with adjustable preload A jar provided with an adjustable preload has a housing defining an anvil surface and a mandrel, movable relative to the housing under an applied load, defining a hammer surface to impact the anvil surface. A trigger mechanism for releasing the mandrel to cause the ... | 12/25/2007 |
| 7281575 | Field adjustable impact jar An impact jar including a biasable member, an impactor and an impactee slidably coupled to the impactor. The impactor includes a first down-hole tool connector. The impactee includes a second down-hole tool connector distal from the first down-hole tool connector an... | 10/16/2007 |
| 7163069 | Telescopable boring rod mechanism The invention relates to a telescopable boring rod mechanism with at least two mutually displaceable Kelly rods, which are equipped with means for transmitting a torque to the adjacent Kelly rod. At least one of the Kelly rods is constructed from at least two rod se... | 01/16/2007 |
| 7111678 | Field adjustable impact jar An impact jar including a biasable member, an impactor and an impactee slidably coupled to the impactor. The impactor includes a first down-hole tool connector. The impactee includes a second down-hole tool connector distal from the first down-hole tool connector an... | 09/26/2006 |
| 7011156 | Percussion tool and method A percussion apparatus and method of using the percussion apparatus. The apparatus may be used for delivering an impact to a tubular string. The apparatus comprises a cylindrical member having an internal bore containing an anvil and a first guide profile. The appar... | 03/14/2006 |
| 6948560 | Jar for use in a downhole toolstring A jar (10), for use in a downhole toolstring comprising: a hollow housing (11); a jar mandrel (13); a latch sub (14); one or more latch keys (16); a cam surface (17); a chamber (23); a compression spring; and an adjus... | 09/27/2005 |
| 5022473 | Adjustable fishing jar A jar tool for inclusion into a well fishing operating string which provides resilient tensional stretch to operate the tool. The tool is adapted to compress an upper release spring to store energy corresponding to tensional force in the operating string ... | 06/11/1991 |
| 4844157 | Jar accelerator A jar accelerator including an elongated tubular tool body and an elongated mandrel axially slidingly mounted within the tool body and having an outwardly facing shoulder. A composite plurality of frusto-conical disc springs are disposed inside the tool b... | 07/04/1989 |
| 4553614 | Compensation device for insertion in a drill string for deep-well drilling tools A compensation device for deep-well drilling tools with a transversely divided outer pipe, the pipe members (1 and 2) of which can be rigidly connected to one another by a screw thread (8) and comprise adjacent end faces (5 and 6) as stop faces which appr... | 11/19/1985 |
| 4463815 | Mechanical jarring tool Adjustable torsional type latching means (5) for triggering a mechanical well jar tool comprises torsionally actuated gear racks (20,22) including acme threads or teeth which extend axially on opposite adjacent side portions of telescopic parts (1,2). The... | 08/07/1984 |
| 4333542 | Downhole fishing jar mechanism A downhole fishing jar mechanism for freeing stuck objects within a well bore which incorporates a housing structure defining an internal anvil element through which an upwardly-directly impact force is adapted to be transmitted to the body structure. A s... | 06/08/1982 |
| 4304428 | Tapered screw joint and device for emergency recovery of boring tool from borehole with the use of said joint A tapered screw joint with the thread profile whose bearing side is inclined at an angle of from about 86° to about 98° to the plane which is perpendicular to the thread axis. Such a tapered screw joint of parts makes it possible to disconnect them rapi... | 12/08/1981 |
| 4186807 | Optional up-blow, down-blow jar tool An improvement on the tool shown in U.S. Pat. No. 3,853,187, this tool also embodies in a single structure inner and outer telescopically related tubular elements confining a body of operating liquid and comprising a hydraulically retarded up-blow jar, ac... | 02/05/1980 |
| 4105082 | Jarring tool A jarring tool for use in a drill string to prevent sticking of the drill string during drilling operations. The jarring tool has a torque assembly for continually torquing the jar and thus the drilling operation need not be discontinued upon encountering... | 08/08/1978 |
| 4036312 | Well jar A well jar is characterized by inner and outer telescoped members held from relative displacement by a latching member having an extending portion thereon. Imposition of an axially directed triggering force exceeding a predetermined magnitude is transmitt... | 07/19/1977 |
