Rotary kinetic fluid motors or pumps – With inspection – signaling – indicating or measuring means
Patent
1985-02-19
1985-12-24
Garrett, Robert E.
Rotary kinetic fluid motors or pumps
With inspection, signaling, indicating or measuring means
98 996, 98 391, 138155, F24F 1310
Patent
active
045603200
ABSTRACT:
Ventilating unit comprising a housing to the front of which is fitted, preferably pivotably, a cover-flap. The front of the housing comprises a wall that closes off the interior in which a fan is arranged. Known ventilating units of this kind contain, inside, a plurality of components, more particularly a fan, insulating material, an actuator, etc. These components have hitherto been secured to the housing, and to each other, by means of screws or other attachment-elements, resulting in relatively high material and assembly costs. Furthermore, cleaning of the ventilating ducts, involving opening-up the unit, has been possible only by using trained personnel. In order to overcome this problem it is therefore suggested that the wall be built as an inspection-flap which is hinged to the front edge of the housing and is provided with means for locking it to the housing. In this connection the fan housing is designed, or bears against the said inspection-flap, in such a manner that when the latter is locked, the fan-housing is also locked in the housing. Finally, at least one retaining wall is preferably provided inside and this, together with the inspection-flap, produces a ventilating unit with adequate stability.
REFERENCES:
patent: 2336765 (1943-12-01), Adam
patent: 3251540 (1966-05-01), Kinsworthy
patent: 3286914 (1966-11-01), Baverstock
patent: 3331304 (1967-07-01), Baus
patent: 3570546 (1971-03-01), Jackson
patent: 3727644 (1973-04-01), Kagon
patent: 4008652 (1977-02-01), Baus
patent: 4132308 (1979-01-01), Goncalves
patent: 4174020 (1979-11-01), Challis
patent: 4186656 (1980-02-01), Weber
Garrett Robert E.
Kwon John
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