Portable respiratory protection device
US5065745A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 19, 1990 |
| Grant date | Nov 19, 1991 |
| Priority date | — |
| Expiry date | Sep 19, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B18/006
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A respiratory protection device having a housing with a housing arm on which a filter having an inlet and an outlet is detachably mounted. The housing has a suction opening for ambient air that is generally covered by a portion of the filter. Spaces are formed between the filter and the housing through which ambient air can pass to the suction opening. A radial blower is located in the housing in communication with the suction opening to convey ambient air under pressure through a channel located in the housing arm to the filter. The covering of the suction opening by the filter prevents water drip or spray from passing into the interior of the housing and prevents accidental covering of the opening.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.