Lipstick cap with lamp devices
US4888667A · kind A · utility
Inventor
Key dates
| Filing date | Apr 14, 1989 |
| Grant date | Dec 19, 1989 |
| Priority date | — |
| Expiry date | Apr 14, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21L4/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lipstick cap with lamp devices, including a cap sleeve used to receive common lipstick seat, and a rotary switch rotarily engaged with the cap sleeve, wherein the cap sleeve is equipped with several lamp devices and a pair of conducting plates electrically connect the lamp devices in series, and the rotary switch has a battery container including an anode and cathode conducting plates which can be selectively electrically connected with the conducting plates of the lipstick cap by means of rotating the rotary switch thereabout whereby when a battery is disposed in the battery container, the lamp devices can be alternatively lighted up in case of applying the lipstick in a dimly lighted place.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.