Air purification apparatus
US4932988A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 15, 1989 |
| Grant date | Jun 12, 1990 |
| Priority date | — |
| Expiry date | Feb 15, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2221/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air purification apparatus has an inner housing with an air inlet and an air outlet. Preferably the inner housing is fabricated as a one-piece molded plastic structure. A filter is mounted within the inner housing. A blower is mounted within the inner housing for drawing air in through the inlet, through the filter and out through the outlet. An outer housing is secured substantially about the inner housing with portions thereof spaced from the inner housing and having an air inlet and an air outlet communicating respectively with the air inlet and the air outlet of the inner housing. In the preferred embodiment, the outer housing is fabricated as a one-piece structure of molded plastic material, with integrally molded vertical reinforcing ribs, stackable detents on the top and the bottom of the housing, and a recessed integral ring about the outlet for storing an electrical cord. Closures are provided for the inlet and the outlet of the outer housing to seal the housing when the apparatus is not in use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.