IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0418413
(2003-04-18)
|
발명자
/ 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
7 인용 특허 :
29 |
초록
▼
A portable, light-weight exhaust fan that can be easily and quickly carried to and set up in a localized area to safely, efficiently and substantially remove airborne materials thereby overcoming the above and other drawbacks of conventional exhaust fans. Exhaust fans in accordance with aspects of t
A portable, light-weight exhaust fan that can be easily and quickly carried to and set up in a localized area to safely, efficiently and substantially remove airborne materials thereby overcoming the above and other drawbacks of conventional exhaust fans. Exhaust fans in accordance with aspects of the present invention may be used to ventilate a localized area such as an enclosed room and may be placed in any aperture such as a window or doorway to remove substantially all airborne material from the air passing therethrough, and to exhaust filtered air directly or indirectly to the surrounding environment. An exhaust fan constructed such that air traveling along an exhaust path through the fan is prevented from contacting components of the fan that can be damaged by exposure to the airborne materials. This enables the exhaust fan to efficiently remove airborne materials from a localized area while preventing the same materials from adversely affecting the operation of the fan. This has particular utility in application wherein the airborne material such as paint over spray adheres readily to surfaces. By preventing the accumulation of debris on internal fan components, the fan operates with greater efficiency for longer periods of time, does not require the extensive periodic cleaning that conventional exhaust fans mandate, and has a significantly longer operational life. The fan components that necessarily come into contact with the air; that is, the interior surface of the exhaust chamber and the vanes of the fan, are preferably accessible and/or removable to facilitate cleaning.
대표청구항
▼
1. A fan for removing airborne materials from a localized area comprising:a housing having an inlet opening, a discharge opening and an air passageway coupling said inlet and discharge openings; a blower unit mounted within said housing to draw air into said inlet opening and to cause said drawn air
1. A fan for removing airborne materials from a localized area comprising:a housing having an inlet opening, a discharge opening and an air passageway coupling said inlet and discharge openings; a blower unit mounted within said housing to draw air into said inlet opening and to cause said drawn air to travel through said air passageway and exit through said discharge opening; and an inlet filter removably secured over said inlet opening to remove from the air drawn into the housing airborne materials that may interfere with the fan's ability to operate efficiently. 2. The fan of claim 1, wherein the fan is portable.3. The fan of claim 2, wherein the fan housing is configured to be manually installed in an aperture.4. The fan of claim 1, wherein the airborne materials comprise paint overspray.5. The fan of claim 1, wherein internal components of the fan that are exposed to air traveling through the air passageway are manually accessible and removable.6. The fan of claim 5, wherein the internal components comprise a fan blade of the blower unit.7. The fan of claim 1, further comprising:an exhaust filter removably secured over the discharge opening of the in the exhaust path, constructed and arranged to remove said hazardous materials and additional airborne hazardous materials that may damage the environment. 8. The fan of claim 1, further comprising:an elongate exhaust conduit having a first end adapted to be coupled to the fan such that air drawn into the fan is located in the exhaust conduit, and a second end adapted to be located in the localized area. 9. The fan of claim 1, further comprising:an elongate exhaust conduit having a first end adapted to be coupled to the fan such that air exhausted from the discharge opening travels into the exhaust conduit, and a second end adapted to be located remotely from said fan. 10. The fan of claim 1, wherein the fan further comprises:an electrical box mounted on said housing, configured to house electrical components, said electrical box being substantially impenetrable by the airborne materials. 11. The fan of claim 10, wherein said electrical box is secured within said housing.12. The fan of claim 10, wherein said electrical box is secured to an exterior surface of said housing.13. The fan of claim 10, wherein said electrical box is explosion proof.14. The fan of claim 10, further comprising:a sealed conduit for housing wiring which carries power, wherein said sealed conduit is substantially impermeable to the airborne materials. 15. The fan of claim 1, wherein the fan is constructed and arranged such that the air is prevented from coming into contact with components of the fan that can cause the airborne materials to combust.16. The fan of claim 15, wherein the fan components comprise:electrical components. 17. The fan of claim 15, wherein the fan components comprise:components having surface temperatures substantially greater than the temperature of the air in the localized area. 18. A fan for removing air from a localized area, wherein the fan is constructed such that airborne materials in the air traveling along an exhaust path through the fan are prevented from substantially accumulating on exhaust fan components which may be damaged by such accumulation of airborne debris.19. The fan of claim 18, wherein the fan is portable.20. The fan of claim 18, wherein electrical components of the fan are located in housings that are substantially impenetrable by the airborne materials.21. The exhaust fan of claim 18, wherein said airborne materials comprise paint overspray.22. The fan of claim 18, wherein said airborne materials comprise hazardous airborne materials.23. The fan of claim 18, wherein internal components of said exhaust fan that are exposed to said air are accessible and removable by a person.24. The fan of claim 18, wherein said components comprise a blower fan blade.25. The fan of claim 18, further comprising:a removable inlet filter, located adjacent to an inlet opening of the exhaust path, constructed and arranged to remove the airborne materials prior to the air entering the exhaust path. 26. The fan of claim 18, wherein the air may also have hazardous material suspended therein, wherein the fan further comprises:an exhaust filter located adjacent to a discharge opening of the exhaust path, constructed and arranged to remove said hazardous materials and additional airborne hazardous materials prior to the air being discharged from the fan. 27. The fan of claim 18, further comprising:a flexible exhaust tube having a proximate end coupled to an inlet opening of said exhaust fan and a distal end for placement in a localized area for receiving air to be filtered. 28. A kit for removing airborne materials from a localized environment comprising:an exhaust fan having inlet and discharge openings and configured to prevent substantial accumulation of airborne materials on components of the fan disposed in the air passageway, wherein such accumulation of airborne materials can adversely affect the operational effectiveness of at least a portion of the fan; and an elongate exhaust conduit configured to be operationally coupled to one of either said inlet and said discharge opening of the exhaust fan. 29. The kit of claim 28 wherein the exhaust fan is portable.30. The kit of claim 28, wherein the exhaust fan further comprises:a housing configured so as to define an air passageway between said inlet and discharge openings; and a blower unit mounted within said housing and comprising rotatable blades at least partially disposed within said air passageway to draw air into said inlet opening, through said air passageway and exit through said discharge opening. 31. The kit of claim 28, wherein said exhaust fan further comprises:an inlet filter located adjacent to said inlet opening such that substantially all air drawn into said inlet opening travels through said inlet filter, wherein said inlet filter is constructed and arranged to remove at least a portion of said airborne materials. 32. The kit of claim 28, wherein said exhaust fan is adapted to be installed manually in an aperture.33. The kit of claim 32, wherein said aperture is a window.34. The kit of claim 28, wherein said exhaust fan further comprises:an enclosure constructed and arranged to house electrical components. 35. The kit of claim 28, wherein said airborne materials comprise paint overspray.36. The kit of claim 28, wherein said exhaust fan is constructed and arranged such that the exhaust path prevents air from coming into contact with incendiary promoters.37. The kit of claim 36, said incendiary promoters comprise one or more of the group consisting of:high temperature surfaces; electrical wiring; and electrical components. 38. The kit of claim 28, further comprising:an exhaust filter located adjacent to a discharge opening such that a substantial portion of the air expelled from the exhaust fan travels through the exhaust filter, wherein the exhaust filter is constructed and arranged to remove airborne materials.
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