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 |
| 4945333 | Fuse assembly, for a cutout, with accelerated arc extinction A fuse assembly for an electrical cutout is provided with capability for rapid arc extinction by a capsule of pressurized insulating gas being located within a fuse tube above the fusible element so that when the fusible element melts and an arc is produc... | 07/31/1990 |
| 4320375 | High current under oil expulsion fuse A high current under oil expulsion fuse having a pair of contacts mounted on a dielectric sleeve, a nontracking, nonconducting pressure tube within the sleeve which extends beyond the dielectric housing into a portion of each of the contacts, a fuse link ... | 03/16/1982 |
| 4227170 | Current-reducing device A current-reducing device (fuse or switch) is described comprising a foil mber of Al or Mg which is immersed in a fluid with which it will chemically react (such as H2 O or H2 O2) above a certain temperature. The foil memb... | 10/07/1980 |
| 4220942 | Circuit interrupting device An improved circuit interrupting device includes a pair of contacts which are relatively movable and between which an arc is established. Following melting of a fusible element, a stored energy source relatively moves the contacts apart to elongate the ar... | 09/02/1980 |
| 4171769 | Temperature anticipator and night light apparatus A temperature anticipator and night light apparatus which may be conveniently utilized with existing heating systems by mounting the apparatus within an air-flow influencing distance from a conventional thermostat which controls the heating system. When o... | 10/23/1979 |
| 4170000 | Method and apparatus for fusing electrical power equipment enclosed in a tank and surrounded by insulating fluid A vacuum fuse is mounted in an insulating oil filled tank containing electrical apparatus and is directly immersed in the insulating oil. A fuse ferrule contact block is suspended in the insulating oil. The suspension for the contact block permits insulat... | 10/02/1979 |
| 4161711 | Circuit interrupting device An improved circuit interrupting device extinguishes an arc by directing a dielectric fluid at the arc as it is elongated. Elongation is effected by relative movement apart of a pair of contacts between which the arc is established. A reservoir contains a... | 07/17/1979 |
| 4058785 | Current limiting fuse A current limiting fuse is disclosed wherein at least one fuse element is employed and each such fuse element is positioned in a narrow space filled with dielectric fluid adjacent a rigid electrically insulating member with a plurality of rupturable vents... | 11/15/1977 |
