Welding helmet
US4853973A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 18, 1988 |
| Grant date | Aug 8, 1989 |
| Priority date | — |
| Expiry date | Mar 18, 2008 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F9/06
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Disclosed is a welding helmet that provides two levels of protection to the eyes and face of the helmet user. The helmet comprises a protective shell having an opaque front wall extending in the front of the face of the wearer and two side walls extending rearwardly from the front wall along the sides of the face of the wearer. The front wall includes a relatively transparent viewing means for allowing the wearer to see beyond the front wall. A visor is attached to the helmet for removably covering the viewing means of the shell with a relatively protective welder's glass. The helmet generally includes means contained sustantially within the protective shell for mounting the visor to the protective shell. According to certain embodiments, the means for mounting the visor includes the visor having a connection arm with the first end and a second end. The connecting arm is pivotally mounted at a point intermediate first end and the second end to one of the side walls of the shell. The first end of the connecting arm is fixedly connected to the visor while the second end is resiliently connected to the shell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.