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 |
| 6571838 | Wood machining apparatus with a sawdust collecting mechanism A wood machining apparatus includes a sawdust collector having a supporting wall that supports a base of a cutter carriage thereon, two upright walls extending downward from the supporting wall to define a bin-receiving space therebetween, a mounting rod ... | 06/03/2003 |
| 5148569 | Debris impeller The specification discloses an impeller for cleaning devices. A plurality of impeller segments are slipped over a twisted flat wire to provide the impeller. Each of the impeller segments preferably includes a plurality of paddles, and a central section wi... | 09/22/1992 |
| 4993098 | Apparatus for vibratory cleaning the surface of an article from foreign matter The apparatus for vibratory cleaning the surface of an article from foreign matter, comprising at least one exciter (1) of mechanical pulses, including an electromagnetic inductor (2) with a plate (3), a frame (7) and at least one striking surface to be c... | 02/19/1991 |
| 4723334 | Dual directional carbon anode cleaning apparatus A dual directional spent carbon anode cleaning apparatus for removing cryolite from a spent carbon anode, the spent carbon anode has longitudinally extending sides and transversely extending ends. The apparatus comprises side cleaning means, the side clea... | 02/09/1988 |
| 4557009 | Carbon electrode cleaning system An electrode cleaning apparatus wherein a carbon electrode is cleaned in a two-step process, the first step being a rough cleaning operation wherein scraper elements scrape the electrode at a first station, and a second step wherein the electrode moves be... | 12/10/1985 |
| 4472852 | Carbon electrode cleaning system An electrode cleaning apparatus wherein a carbon electrode is maneuvered between a pair of spaced counterrotating vertical shafts having flailing elements connected thereto. This occurs within an enclosure having a lower hopper that directs flailed residu... | 09/25/1984 |
| 4392268 | Chalkboard eraser cleaner system A chalkboard eraser cleaner including a completely closeable, box-like housing containing an electrically driven, rotatable beater. At the top of the container is a side, slot-like opening with a door for the insertion of the eraser to be cleaned. Right b... | 07/12/1983 |
| 4002491 | Removal of coatings by rotating chain flails Coatings are loosened for removal from various substrates by rotating a chain-like flail against the coating while maintaining the flail oriented and positioned with respect to the surface of the coating so that the next-to-last terminal link of the flail... | 01/11/1977 |
