Rotary kinetic fluid motors or pumps – Working fluid passage or distributing means associated with... – Casing with mounting means
Patent
1993-05-06
1994-09-06
Kwon, John T.
Rotary kinetic fluid motors or pumps
Working fluid passage or distributing means associated with...
Casing with mounting means
454205, 454228, F04D 2952
Patent
active
053442873
ABSTRACT:
A combination fan and fan shroud adaptor assembly includes a fan with a circumferential wall, front and rear grill faces and a driven fan blade between the faces and within the wall. The fan shroud adaptor has a substantially flat frame which is attachable or hinged to a building wall in confronting relationship with a building opening through the wall as to close the building opening. An opening is within the frame, slightly larger than the fan circumferential wall, for receiving and supporting the fan wall in close engagement with the frame and alignable with the building opening. Means may be located adjacent a lower portion of the frame opening for receiving and supporting the fan in the frame opening in a secure fashion for air exhaust, intake and circulation.
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