Ventilator assembly and method of removing kitchen exhaust fumes
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F24C-015/20
출원번호
US-0085391
(1993-06-30)
발명자
/ 주소
Nester, F. Brent
출원인 / 주소
Aerolator Systems, Inc.
대리인 / 주소
Adams, III, W. Thad
인용정보
피인용 횟수 :
18인용 특허 :
4
초록▼
The invention relates to a ventilator assembly and method for removing kitchen exhaust fumes entrained in a moving air stream from an area surrounding a cooking unit. A roof-top blower moves the air stream from the cooking area through an air duct to the atmosphere. An overhanging hood defines a ven
The invention relates to a ventilator assembly and method for removing kitchen exhaust fumes entrained in a moving air stream from an area surrounding a cooking unit. A roof-top blower moves the air stream from the cooking area through an air duct to the atmosphere. An overhanging hood defines a ventilation opening located above the cooking unit. One or more air vents are formed in a top wall of the hood and communicate with the air duct. A detachable high velocity module is positioned in the hood in filtering relation to the air vents. The high velocity module includes opposing side plates, a filter housing connected to the side plates, and an inclined exhaust baffle located between the filter housing and the cooking unit. The exhaust baffle defines at least one laterally extending slot formed therein for accelerating the flow of the moving air stream into the high velocity module. One or more grease filters are mounted in the filter housing for removing fumes from the moving air stream.
대표청구항▼
1. A ventilator assembly for removing kitchen exhaust fumes entrained in a moving air stream from an area surrounding a cooking unit, and including a roof-top blower for moving the air stream from the cooking area through an air duct to the atmosphere, said ventilator assembly comprising: (a) an
1. A ventilator assembly for removing kitchen exhaust fumes entrained in a moving air stream from an area surrounding a cooking unit, and including a roof-top blower for moving the air stream from the cooking area through an air duct to the atmosphere, said ventilator assembly comprising: (a) an overhanging hood defining a ventilation opening located above said cooking unit, said hood including a back wall, an outwardly extending top wall, a front wall, and spaced-apart opposing side walls; (b) one or more air vents formed in the top wall of said hood and in communication with said air duct; (c) a detachable high velocity module positioned in said hood in filtering relation to said one or more air vents, said high velocity module including opposing side plates, a filter housing means connected to said side plates, and an inclined exhaust baffle located between said filter housing means and said cooking unit; said exhaust baffle being positioned in the ventilation opening of said hood and extending inwardly and downwardly in a diagonal line from the front wall of said hood to the back wall of said hood, said exhaust baffle defining at least one laterally extending slot formed therein for accelerating the flow of the moving air stream into said high velocity module; and (d) one or more grease filters mounted in said filter housing means for removing fumes from the moving air stream as the fumes are pulled upwardly in the air stream by said roof-top blower away from the cooking area and through the high velocity module from an upstream side to an downstream side thereof. 2. A ventilator assembly according to claim 1, wherein said back wall includes a support ledge connected thereon for supporting a back end of said high velocity module, and said front wall includes an inwardly extending shelf connected thereto for supporting a front end of said high velocity module. 3. A ventilator assembly according to claim 2, wherein the filter housing means of said high velocity module includes a base plate extending from a back edge of said baffle at an obtuse angle with respect to said baffle, said base plate designed for carrying said filter and for engaging the support ledge of said back wall. 4. A ventilator assembly according to claim 3, wherein said high velocity module further includes a top plate connected to said side plates for extending in a substantially horizontal plane opposite said baffle, said top plate having a support lip connected thereto extending beyond the front end of said high velocity module for engaging the self of said front wall. 5. A ventilator assembly according to claim 4, wherein said filter is mounted on the base plate of said filter housing and extends upwardly and outwardly in a diagonal line to a back edge of said top plate. 6. A ventilator assembly according to claim 5, wherein said top plate and a front edge of said baffle define a slot formed therebetween extending from one side plate to the other side plate for accelerating air flow into said high velocity module. 7. A ventilator assembly according to claim 6, wherein said filter includes a plurality of weep holes formed in the base thereof for allowing filtered grease to weep out of the filter. 8. A ventilator assembly according to claim 7, wherein the back edge of said baffle and the base plate are integrally formed, and include a plurality of weep holes formed at said connection substantially corresponding to and in cooperation with the weep holes of said filter for allowing the grease from said filter to weep out of said high velocity module. 9. A ventilator assembly according to claim 8, further comprising at least one handle connected to an exterior face of said baffle for allowing said high velocity module to be easily inserted into and detached from said hood. 10. A ventilator assembly according to claim 1, wherein said ventilator assembly includes a plurality of detachable high velocity modules positioned end to end, lengthwise in said hood. 11. A ventilator assembly according to claim 1, further comprising a relatively shallow grease tray located beneath said high velocity module and adjacent to the back wall of said hood for capturing grease removed from the air stream as the air stream is pulled through said filter, said grease tray extending from one side wall of said hood to the other side wall of said hood. 12. A ventilator assembly according to claim 11, wherein said grease tray declines from an upper first end to a lower second end for allowing the grease to flow downstream towards said second end, and said second end including a relatively small opening for permitting the grease to drain out of said grease tray. 13. A ventilator assembly according to claim 12, further comprising a detachable grease cup located beneath the opening of said second end for collecting grease as said grease drains from said grease tray. 14. A ventilator assembly according to claim 1, further comprising a flue gas bypass located in back of said cooking unit and adjacent to the back wall of said hood, said bypass comprising an upwardly extending chamber in communication with said air duct for moving flue gases emitted from a gas powered cooking unit from the cooking area to the atmosphere. 15. A method of removing kitchen exhaust fumes entrained in a moving air stream from an area surrounding a cooking unit, comprising the steps of: (a) mounting a blower outside of the cooking area and in communication with the atmosphere for moving air from the cooking area to the atmosphere; (b) placing an overhanging hood above said cooking unit and in communication with said blower for pulling air upwardly through a ventilation opening defined by said hood; (c) providing a high velocity module for being placed in said ventilation opening; (d) removable attaching said high velocity module to said hood; (e) accelerating air flow into said high velocity module; and (f) filtering grease from the air stream as the air stream is passed through said high velocity module. 16. A method of removing kitchen exhaust fumes according to claim 15, wherein the step of providing a high velocity module further includes forming a filter housing means in said high velocity module for carrying a filter, and connecting an inclined exhaust baffle to respective side plates of said high velocity module forward of said filter housing means and in fume-engaging relation to said cooking unit for accelerating air flow from the cooking area through the high velocity module. 17. A method of removing kitchen exhaust fumes according to claim 16, wherein the step of removable attaching said high velocity module to said hood comprises supporting a front end of said high velocity module by a support shelf extending inwardly from a front wall of said hood, and mounting a back end of said high velocity module on a support ledge connected to a back wall of said hood. 18. A method of removing kitchen exhaust fumes according to claim 17, wherein the step of accelerating air flow into said high velocity module comprises forming at least one laterally extending slot in said baffle and directing air flow therethrough. 19. A method of removing kitchen exhaust fumes according to claim 18, wherein the step of filtering grease from the air stream as the air stream is passed through said high velocity module comprises inserting a filter into said filter housing means and directing the inward flow of air from said baffle through said filter.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (4)
Grace William R. (Alhambra CA), Cooktop ventilation system.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.