Respiratory masks with gusseted cushions
US8297283B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 12, 2006 |
| Grant date | Oct 30, 2012 |
| Priority date | — |
| Expiry date | Aug 13, 2028 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M16/0858
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Cushions for respiratory face masks have a frame-connecting portion, a face-contacting portion, and a gusset portion disposed between and joining the frame-connecting and face-contacting portions. The gusset portion preferably includes at least one perimetrical region which having a laterally projecting exterior gusset section and a laterally projecting interior gusset section. According to one aspect, the laterally projecting exterior and interior gusset sections are disposed about the entire perimeter to the gusset portion so as to establish a substantially constant widthwise dimension thereof about the gusset's entire perimeter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.