Cigarette lighter with presale tamper protection
US4049370A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1975 |
| Grant date | Sep 20, 1977 |
| Priority date | — |
| Expiry date | Sep 18, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23Q2/161
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A cigarette lighter has a cylindrical fuel-containing housing provided at its head with a burner, a valve having a lever operable to feed fuel from the housing interior to the burner, and a striker wheel for sparking across the burner and igniting fuel issuing therefrom. A shield surrounds the projecting end of the valve lever and prevents its actuation. This shield is releasably connected to the housing by a plurality of frangible webs to allow its removal after purchase of the lighter. These webs are integrally formed with the shield and with the synthetic-resin reservoir body of the housing or with the metallic head cap thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.