Blower and rotating wind deflector
US4521153A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1982 |
| Grant date | Jun 4, 1985 |
| Priority date | — |
| Expiry date | Sep 28, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/56
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Herein disclosed is a blower which comprises a fan, means for driving said fan, a body housing or guard mounting said fan therein, a wind deflector mounted in the front opening of said body so that it can rotate in said front opening, and a rear guard mounted in the rear opening of said body. Said wind deflector is formed with changing vanes which are made receptive of the air wind generated by said fan for imparting a rotational force to said wind deflector. Moreover, the changing vanes are made at least partially so movable that they can be adjusted to have an arbitrary vane angle for changing a rotating speed on a rotating direction of said wind deflector.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.