Handy torch
US4419072A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Mar 10, 1982 |
| Grant date | Dec 6, 1983 |
| Priority date | — |
| Expiry date | Mar 10, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF23D14/465
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A handy torch comprises a tank, a first valve mechanism, a second valve mechanism, a burner having a nozzle and an air-intake opening. A pipe connects the second valve mechanism with the burner. The first valve mechanism includes a first valve body having a cylindrical inner wall with a female thread and a valve seat, an actuating member having a male thread screwed with the female thread of the first valve body, a disc, a resilient O-ring disposed between the valve seat and the disc. The O-ring is designed such that the gas flowing from an entrance of the first valve mechanism can be controlled by the O-ring in cooperation with the disc and the valve seat. A suction material connects the male thread of the actuating member with the gas in the tank. The second valve mechanism includes a second valve body having a passage and a through-hole with a female thread, and a needle having a male thread screwed with the female thread of the second valve body for controlling the gas flowing through the passage. A gas adjusting dial member is fixed to the needle. The torch comprises further a piezo-electric unit having an ignition button, an air adjuster and an air control lever. A casing hou…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.