Light powered mobile
US4376347A · kind A · utility
Inventor
Key dates
| Filing date | Sep 18, 1981 |
| Grant date | Mar 15, 1983 |
| Priority date | — |
| Expiry date | Sep 18, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21S9/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A display assembly is provided which most desirably comprises a lamp mobile having a base, a d.c. motor mounted within the base with a shaft extending outwardly from it, and the mobile mounted to the shaft. The interconnection between the mobile and the shaft can be a curved distal end of the shaft engaging an abutment surface of a similar radius of curvature formed within a body member of the mobile, with the shaft loosely received by the mobile, so that the mobile will rotate at a slower speed than the shaft. The base is screw-threaded onto the top of a cylindrical projection from a lamp harp, and a solar cell which powers the d.c. motor is also mounted to the lamp so that it receives light from the lamp light bulb. A pair of planar portions, one received by the lamp socket and the other mounting the solar cell, and interconnected by a hinge, may be utilized to properly position the cell to receive light from the lamp. The mobile includes a rod mounted at its central portion to the mobile body member, with a weight mounted to one end of the rod and a display item, such as an airplane model, mounted to the other end of the rod. Cooperating magnets disposed on the rod and base can …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.