# US 6,620,041 B2 · Multi-purpose clean air fan and fan motor mount assembly

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- Number: US 6,620,041 B2
- Document ID: US6620041B2
- Status: Granted
- Kind: B2
- Application number: 09/962,728
- Filed: 2001-09-25
- Published: 2002-02-28
- Granted: 2003-09-16
- Earliest claimed: 1998-12-03
- Assignees: Microzone Corporation
- Inventors: Terence Webb
- Web page: https://patentgrep.com/patent/US6620041B2

## CPC

- F04D 29/703: {specially for fans, e.g. fan guards}
- B01D 46/0005: {Mounting of filtering elements within casings, housings or frames (B01D46/2422 takes precedence)}
- B01D 46/10: Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
- B01D 46/521: {using folded, pleated material}
- B01D 2265/028: Snap, latch or clip connecting means
- B01D 2267/40: Different types of filters
- B01D 2273/30: Means for generating a circulation of a fluid in a filtration system, e.g. using a pump or a fan
- B01D 2279/51: in clean rooms, e.g. production facilities for electronic devices, laboratories
- F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02)
- B01D: SEPARATION (separating solids from solids by wet methods B03B, B03D; by pneumatic jigs or tables B03B; by other dry methods B07; magnetic or electrostatic separation of solid materials from solid materials or fluids, separation by high-voltage electric fields B03C; centrifuges, vortex apparatus B04; presses per se for squeezing-out liquid from liquid-containing material B30B9/02; treatment of water C02F, e.g. softening by ion-exchange C02F1/42; {arrangements of air intake cleaners in gas turbine plants F02C7/05} ; arrangements or mounting of filters in air-conditioning, air-humidification or ventilation F24F13/28)

## Abstract

A multi-use clean air fan and fan motor mount assembly comprising a bifurcated conical air inlet and blown air deflector, a fan motor mount, motor mount supports, a fan motor and a fan, the bifurcated conical air inlet and blown air deflector having a long outer wall, and a short inner wall, the fan motor mount suspended within the bifurcated conical air inlet and blown air deflector by motor mount supports fastened between the outer wall of the bifurcated conical air inlet and blown air deflector and the fan motor mount, an aperture defining a central opening in the top of the bifurcated conical air inlet and blown air deflector, the fan and fan motor having a common longitudinal axis with the longitudinal axis of the bifurcated conical air inlet and blown air deflector, the fan having a series of vanes extending outwardly from the central longitudinal axis of the fan, the inside of the long outer wall of the bifurcated conical inlet and blown air deflector surrounding more than half of the longitudinal height of the vanes of the fan.

## Claims

### Claim 1

A clean air room having two suspended ceilings, an upper suspended ceiling and a lower suspended ceiling, a source of pre-filtered air above the upper suspended ceiling,
a series of openings in the upper suspended ceiling,
a multi-use fan and fan motor mount assembly located in the openings in the upper suspended ceiling,
the multi-use fan and fan motor mount assembly comprising
a bifurcated conical air inlet a bifurcated conical air inlet and blown air deflector, a fan motor mount, motor mount supports, a fan motor and a fan,
the bifurcated conical air inlet and blown air deflector having a long outer wall, and a short inner wall,
an aperture defining a central opening in the top of the bifurcated conical air inlet and blown air deflector,
the fan and fan motor having a common longitudinal axis with the longitudinal axis of the bifurcated conical air inlet and blown air deflector,
the fan having a series of vanes extending outwardly from the central longitudinal axis of the fan,
the inside of the long outer wall of the bifurcated conical inlet and blown air deflector surrounding more than half of the longitudinal height of the vanes of the fan,
the lower suspended ceiling comprising non porous and porous panels,
the porous panels comprising final filters which can be removed from within the room.

### Claim 2

A multi-use clean air fan and fan motor mount assembly comprising a bifurcated conical air inlet and blown air deflector, a fan motor mount, motor mount supports, a fan motor and a fan,
the bifurcated conical air inlet and blown air deflector having a Long outer wall, and a short inner wall,
the fan motor mount suspended from within the bifurcated conical air inlet and blown air deflector by motor mount supports fastened between the outer wall of the bifurcated conical air inlet and blown air deflector and the fan motor mount,
an aperture defining a central opening in the top of the bifurcated conical air inlet and blown air deflector, the fan and fan motor having a common longitudinal axis with the longitudinal axis of the bifurcated conical air inlet and blown air deflector,
the fan having a series of vanes extending outwardly from the central longitudinal axis of the fan,
the inside of the long outer wall of the bifurcated conical inlet and blown air deflector surrounding more than half of the longitudinal height of the vanes of the fan,
the inside of the long outer wall of the bifurcated conical air inlet and blown air deflector surrounding between two-thirds and three-quarters of the vertical height of the vanes of the fan,
a clean room, the clean room having a suspended ceiling supporting a series of final filters removable from below the suspended ceiling,
a series of multi-use clean air fan motor mount assemblies arranged above the suspended ceiling.

### Claim 3

A multi-use clean air fan and fan motor mount assembly comprising a bifurcated conical air inlet and blown air deflector, a fan motor mount, motor mount supports, a fan motor and a fan,
the bifurcated conical air inlet and blown air deflector having a long outer wall, and a short inner wall,
the fan motor mount suspended from within the bifurcated conical air inlet and blown air deflector by motor mount supports fastened between the outer wall of the bifurcated conical air inlet and blown air deflector and the fan motor mount,
an aperture defining a central opening in the top of the bifurcated conical air inlet and blown air deflector, the fan and fan motor having a common longitudinal axis with the longitudinal axis of the bifurcated conical air inlet and blown air deflector,
the fan having a series of vanes extending outwardly from the central longitudinal axis of the fan,
the inside of the long outer wall of the bifurcated conical inlet and blown air deflector surrounding more than half of the longitudinal height of the vanes of the fan,
the inside of the long outer wall of the bifurcated conical air inlet and blown air deflector surrounding between two-thirds and three-quarters of the vertical height of the vanes of the fan,
a sterile suite ceiling system comprising a suspended ceiling below the multi-use clean air fan and fan motor mount assemblies supporting a series of final filters removable from below the ceiling.

### Claim 4

A multi-use clean air fan and fan motor mount assembly comprising a bifurcated conical air inlet and blown air deflector, a fan motor mount, motor mount supports, a fan motor and a fan,
the bifurcated conical air inlet and blown air deflector having a long outer wall, and a short inner wall,
the fan motor mount suspended from within the bifurcated conical air inlet and blown air deflector by motor mount supports fastened between the outer wall of the bifurcated conical air inlet and blown air deflector and the fan motor mount,
an aperture defining a central opening in the top of the bifurcated conical air inlet and blown air deflector, the fan and fan motor having a common longitudinal axis with the longitudinal axis of the bifurcated conical air inlet and blown air deflector,
the fan having a series of vanes extending outwardly from the central longitudinal axis of the fan, the inside of the long outer wall of the bifurcated conical inlet and blown air deflector surrounding more than half of the longitudinal height of the vanes of the fan,
the inside of the long outer wall of the bifurcated conical air inlet and blown air deflector surrounding between two-thirds and three-quarters of the vertical height of the vanes of the fan,
a clean air room having air upper and lower suspended ceiling, a series of apertures defining openings in the upper suspended ceiling,
a source of pre-filtered air above the upper suspended ceiling,
the air inlet of the bifurcated conical air inlet and blown air deflector located in an aperture in the upper suspended ceiling,
the lower suspended ceiling comprised of a series of suspended final filters which can be removed from below.

### Claim 5

A multi-use clean air fan and fan motor mount assembly comprising:
a bifurcated conical air inlet and blown air deflector having a long outer wall, a short inner wall and an aperture defining a central inlet opening in the top thereof,
a fan motor mount,
motor mount supports,
a fan motor, and
a fan,
the fan motor mount suspended within the bifurcated conical air inlet and blown air deflector by motor mount supports fastened between the outer wall of the bifurcated conical air inlet and blown air deflector and the fan motor mount,
the fan and fan motor having a common longitudinal axis with the longitudinal axis of the bifurcated conical air inlet and blown air deflector,
the fan having a series of vanes extending outwardly from the central longitudinal axis of the fan, and
the inside of the long outer wall of the bifurcated conical inlet and blown air deflector surrounding more than half of the longitudinal height of the vanes of the fan.

### Claim 6

A clean air module comprising in combination:
an air pre-filter assembly,
a fan and fan motor mount assembly, and
a final filter assembly,
in which the fan and fan motor mount assembly comprises:
a bifurcated conical air inlet and blown air deflector having a long outer wall, a short inner wall and an aperture defining a central inlet opening in the top thereof,
a fan motor mount,
motor mount supports,
a fan motor, and
a fan,
the fan and fan motor having a common longitudinal axis with the longitudinal axis of the bifurcated conical air inlet and blown air deflector,
the fan having a series of vanes extending outwardly from the central longitudinal axis of the fan, and
the inside of the lone outer wall of the bifurcated conical inlet and blown air deflector surrounding more than half of the longitudinal height of the vanes of the fan.