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 |
| 7161462 | Gas permeable resistor casing A resistor apparatus for containing broken pieces of an overheated resistor body is provided. The resistor apparatus includes a resistor body and a first and second lead wire electrically connected to opposite sides of the core. A gas permeable containment casing su... | 01/09/2007 |
| 7064302 | Electrical connection for a resistor element made of electrically-conductive fibers A connection endpiece placed on a resistor element provided with at least one layer of electrically-conductive fibers, the endpiece serving to connect a power supply wire electrically to the resistor element. The endpiece includes at least one metal plate having a t... | 06/20/2006 |
| 5558794 | Coaxial heating cable with ground shield A coaxial heating cable comprising a central electrically conductive heating core is formed from a conductor having a resistance with a positive temperature coefficient of at least 30% at 20° C. An electrically insulating polytetrafluoroethylene sheath s... | 09/24/1996 |
| 4795998 | Sensor array A sensor array, usually a sensor matrix for sensing pressure, comprising a grid of conductors in a woven fabric, the row conductors crossing over the column conductors to form a matrix array of crossover points. The rows are separated from the columns by ... | 01/03/1989 |
| 4490828 | Electric resistance heating element and electric resistance heating furnace using the same as heat source An improved electric resistance heating element made of a carbon material, provided around its surface with a layer essentially comprising carbon fiber, and an improved electric resistance heating furnace using the heating element.... | 12/25/1984 |
| 4158764 | Device for heating liquid in a container The device includes a coiled conductor formed of an alloy having a high electrical resistance and has an outer tubular casing of plastic material which is inert to acid or alkaline solutions. A flexible sleeve braided of fibrous glass material is slidably... | 06/19/1979 |
