Welding helmet with conical pivoting mechanism for head gear strap
US6260197A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 9, 1999 |
| Grant date | Jul 17, 2001 |
| Priority date | — |
| Expiry date | Apr 9, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/75
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A welding helmet includes a connector for connecting the head gear and the protective shell and is comprised of an external finger knob allowing for user adjustment of the friction developed by the connector, a conical pivot stop having a conical surface, a strap member having a matching conical surface with the frictional forces being developed between these two conical surfaces, and a bolt which joins the parts of the connector and mounts them between the head gear and shell. A guide pin and guide slot in the stop and strap member control and guide the movement between these two parts as the shell is moved with respect to the user's head. A locator pin in the stop is inserted into one of a series of holes in the helmet to locate the angular orientation between the stop and the helmet, and thereby helps to fix the limits of relative movement between the shell and the user's head.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.