Device to close the gun slit or opening
US8065948B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 24, 2008 |
| Grant date | Nov 29, 2011 |
| Priority date | — |
| Expiry date | Jul 7, 2029 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF41H5/20
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A protection device to close the gun slit (or opening) of a mount, such gun slit delimited by two lateral flanges and two end flanges and in which pivots or moves a mobile organ carrying a mobile wall positioned between the exterior and interior of the mount, device which comprises at least one flexible bellows integral on one side with an end flange of the gun slit and on the other with the mobile organ (3), such device wherein the bellows and wall delimit an intermediate chamber that is linked to the internal space (10) of the mount, such space being pressurized by pressurization means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.