Aerator
US4057372A · kind A · utility
7Cited by
8References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 25, 1975 |
| Grant date | Nov 8, 1977 |
| Priority date | — |
| Expiry date | Aug 25, 1995 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02W10/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An aerator for a spa is made of a section of pipe mounted to a base having an axially directed output fitting. A blower oriented axially of the pipe is mounted near the base in an annular mounting and sealing ring, and one or more additional blowers may be mounted to provide a series of blower stages all axially aligned with one another along the pipe. A solid body of porous foam having a through aperture fills the pipe above the first of the blowers and a cover is detachably connected to the top of the pipe section housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.