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 |
| 5135314 | Ceramic bearing This invention is to provide a ceramic sliding bearing which is possible to support the axis to which the radial load and the thrust load are applied simultaneously or selectively, and also this invention is to provide a bearing having a small number of p... | 08/04/1992 |
| 5127745 | Ceramic bearing The ceramic bearing constructed by being allowed to contact the ceramic outer ring slidably with the ceramic inner ring is provided with a latching member to prevent the transfer of the ceramic inner ring in the axial direction at the inner or the outer r... | 07/07/1992 |
| 5102239 | Ceramic bearing A ceramic bearing is provided by an outer ring, an inner ring, and a sliding ring fitted between the outer and inner rings. Each of the rings is made from ceramic material. Sliding contact occurs between the sliding ring and the inner ring, and between th... | 04/07/1992 |
| 5094550 | Ceramic bearing A ceramic bearing includes a fixed ring and a rotary ring. The fixed ring has an outer cylindrical surface dimensioned for an interference fit in a bore of a machine. The fixed ring also has an end surface for contacting a bottom of the bore, and an oppos... | 03/10/1992 |
| 5083873 | Ceramic bearing A ceramic bearing is provided by a ceramic inner ring and a ceramic outer ring. The ceramic inner ring includes an axial hole for receiving a shaft at the center of the inner ring. The inner ring further includes an outer cylindrical surface coaxial with ... | 01/28/1992 |
