Bizarre Patents
A method of swing on a swing is disclosed, in which a user positioned on a standard swing suspended by two chains from a substantially horizontal tree branch induces side to side motion by pulling alternately on one chain and then the other.
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| Number | Title | Issue Date |
| 7985370 | Apparatus for forming longitudinal thermal-fatigue cracks An apparatus for forming longitudinal thermal fatigue cracks. A heating unit has an induction coil disposed adjacent to an outer circumference of one side of a tubular test piece, on an inner surface of which a notch is formed. A cooling unit has a cooling water pum... | 07/26/2011 |
| 7250133 | Device for use when hardening A device for use when hardening includes fixture parts (1, 4, 6) between which a workpiece is fixed during hardening. The device's fixture parts (1, 4, 6) are three or more so that two or more workpieces are fixed simultaneously in the device. ... | 07/31/2007 |
| 6847469 | Image processing apparatus for removing an isolated point An image processing apparatus efficiently removes an isolated point. A pixel area comprising a matrix area and a line area extending from the matrix area is defined. The matrix area includes a plurality of pixels forming a matrix so that a center pixel which is bein... | 01/25/2005 |
| 6660110 | Heat treatment devices and method of operation thereof to produce dual microstructure superalloy disks A heat treatment assembly and heat treatment methods are disclosed for producing different microstructures in the bore and rim portions of nickel-based superalloy disks, particularly suited for gas turbine applications. The heat treatment assembly is capa... | 12/09/2003 |
| 6328829 | Constrained hardening method and apparatus for deformed bar workpieces Hardening is accomplished by heating a longitudinal section of a workpiece such as an odd-shaped bar, and by quenching while constraining the workpiece section in dies. The quenching is executed while the workpiece is pressed in a direction perpendicular ... | 12/11/2001 |
| 5597527 | Thermomagnetic apparatus for determining optimum heat treatment of alloys The disclosure is of apparatus for determining the transformation characteristics of a metal alloy by treating the alloy to render it austenitic and then monitoring the isothermal decomposition of the austenite by measuring the magnetic change in the allo... | 01/28/1997 |
| 5527020 | Differentially heat treated article, and apparatus and process for the manufacture thereof Apparatus for differentially heat treating a turbine disk of a gas turbine engine so as to produce a dual property superalloy disk. The apparatus enables a process to achieve substantially uniform yet different temperatures in the rim and hub of the disk ... | 06/18/1996 |
| 4747290 | Roller cooling table A roll cooling table (1) for steel pipes (3) having a group of interlocked castellated water-cooled rolls (5) which are located in a generally downwardly sloping plane at the entry side of the cooling table (1), and being situated adjacent to a sloping sk... | 05/31/1988 |
| 4573667 | Apparatus for quenching substantially flat workpieces An apparatus for rapidly quenching substantially flat metal workpieces which have been heated during a heat treatment process is disclosed. The apparatus comprises a substantially flat plate having a plurality of vapor relief apertures therein, a wick ele... | 03/04/1986 |
| 4258906 | Device for gradient heating of wire A device for gradient heating of a wire includes a vacuum chamber with a thermostatically regulated base and a means for producing a temperature gradient arranged thereinside. The means for producing a temperature gradient is designed in the form of a met... | 03/31/1981 |
| 4103880 | Apparatus for heat treating drill blanks Apparatus for automatically heat treating a plurality of elongated articles, wherein only a portion of the articles are subjected to the heat treating operation, the remaining portion thereof being enveloped and prevented from reaching a temperature durin... | 08/01/1978 |
