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Title: Ventilation and filter module for cooking units
Claims: I claim: 1. A free-standing fume collecting unit of modular construction and adapted to be positioned immediately adjacent one or more fume-generating cooking surfaces, said unit comprising a discrete, generally rectangular base module, a powered exhaust means in said base module discharging to the exterior of said unit, removable filter elements in the base module positioned to filter the intake of said exhaust means, and a generally rectangular, discrete upper module overlying said base module with openings in the contiguous module faces to provide communication between their interiors, said upper module having at least one intake opening extending across the side of said upper module closest to a cooking surface, a positionably adjustable closure member provided for said intake opening movable between adjusted open position and fully closed position, and abnormal temperature responsive means for moving said closure member to fully closed position upon the existence of a predetermined abnormal temperature at said intake opening, whereby air and fumes moving from said cooking surface are drawn through said intake opening, move through said upper module into said base module to be discharged at the exterior of the unit by said exhaust means and said intake opening is closed upon occurrence of an abnormal temperature in the entering air and fumes. 2. A fume collecting unit as claimed in claim 1 in which said closure member is pivotally supported adjacent its upper margin, and said abnormal temperature responsive means includes a tension member having a fusible link for retaining said closure member in open position, an abnormal increase in temperature of the entering air serving to melt said link to release said tension member and permit said closure member to move to its closed position. 3. A fume collecting unit as claimed in claim 1 in which said base module is provided with a door to permit access to said filter elements and said exhaust means. 4. A fume collecting unit as claimed in claim 1 in which said upper module is provided with intake openings on opposite sides of said module and at differing vertical positions on the module side walls. 5. A fume collecting unit as claimed in claim 2 in which said closure member is provided with bearing members extending from opposite side margins of said closure member and accommodating stationary pintles to provide a pivot axis for the closure member, a friction band extending into frictional engagement with each of said bearing members for providing a frictional force resisting rotation of the bearing members and to maintain said closure member in any selected position between its full open and closed positions, said tension member extending between said friction bands to maintain said frictional force and to release it when said link melts. 6. A free-standing fume collecting unit of modular construction and adapted to be positioned immediately adjacent one or more fume-generating cooking surfaces, said unit comprising a discrete, generally rectangular base module, a powered exhaust means in said base module discharging to the exterior of said unit, removable filter elements in the base module positioned to filter the intake of said exhaust means, a door provided on said base module to permit access to said filter elements and exhaust means, a receptacle on the inner face of said door for collecting grease trapped by said filter elements, and a generally rectangular, discrete upper module overlying said base module with openings in the contiguous module faces to provide communication between their interiors, said upper module having at least one intake opening extending across the side of said upper module closest to a cooking surface, whereby air and fumes moving from said cooking surface are drawn through said intake opening, move through said upper module into said base module to be discharged at the exterior of the unit by said exhaust means. Other info: Inventors: Jenn, Louis J. (Indianapolis, IN, US) Application Number: 524039 Filing Date: 1974-11-15 Publication_date: 1976-05-04 Assignee: Jenn Air Corporation (Indianapolis, IN) Primary Class(es): 96/407 55/467, 55/DIG36, 126/299D, 454/49, 454/56 Other Classes: US Patent Ref:
Other Refs: Primary Examiner: Wayner, William E. Assistant Examiner: Tapolcai, William E. Attorney: Woodard, Weikart, Emhardt & Naughton |
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