Aerator
US4461097A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 31, 1981 |
| Grant date | Jul 24, 1984 |
| Priority date | — |
| Expiry date | Dec 31, 2001 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61L2/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An inflatable structure, includes a base and a barrier attached to the base which is capable of being inflated to a predetermined shape in order to define a chamber. A door in the barrier allows access to the chamber. The base includes a source of gas for inflating the barrier and for circulating within the chamber. The barrier is constructed as a twin-walled structure having inner and outer walls defining an air flow space therebetween. Holes are provided through at least portions of the inner wall to provide a means for circulation of air from the space into the chamber. When not in use, the aerator may be deflated and folded for compact storage and shipment.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.