Tip turbine inflating device with motor-actuated closure at inlet
US4008983A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 1974 |
| Grant date | Feb 22, 1977 |
| Priority date | — |
| Expiry date | Nov 27, 1994 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7922
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A tip turbine type fan particularly adapted for use to effect a substantially instantaneous inflation of an emergency lifesaving device such as an escape slide or life raft. It features a housing having an improved unitized construction which defines an axial flow passage. A rotor within and transverse to said passage is operated under the influence of fluid under pressure directed from a chamber formed within and circumferentially of the wall structure of said housing. Drive of the rotor induces air from the environment surrounding the housing to enter the flow passage at one end to co-mingle with the fluid furnishing the motive power for the rotor and to move therewith from the passage to the interior of a connected article to be inflated. It is a feature of a preferred embodiment of the invention that the entrance to the flow passage is bridged by a platelike closure device which is normally biased to a position to seal the entrance to said flow passage. Means are included to provide that this plate will be axially displaced from the entrance to the flow passage to permit the inflow of air under the influence of the operation of said rotor substantially simultaneously with the e…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.