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Apparatus and method for removing fumes from the space above a cooking appliance in a restaurant
| Details |
Inventors: Kuechler, Irvin R.;
Assignee:
Primary Examiner: Capossela; Ronald C.
Assistant Examiner:
Attorney, Agent or Firm: Gausewitz, Carr, Rothenberg & Edwards
An apparatus and method are disclosed whereby both the inlet and exhaust plenums may be very "wide" (long), yet low in profile, economical to construct, and have very small tendencies to collect or be plugged with grease, while still achieving the important requisite of substantially uniform flow across the entire "width" (length) of the apparatus. One set of baffle or constrictor means is provided in the inlet plenum at regions between the inlet duct and the "sides" (ends) of such plenum. Another baffle or constrictor means is provided in the extended exhaust plenum, at regions between the exhaust duct and the central region of the grease-filter means. The respective baffle or constrictor means are relatively adjacent the ducts. The baffle or constrictor means are preferably fixed or adjustable baffles, or indentations (dimples) in the walls of the plenums. In one embodiment, an air-blocking plate is provided at the air-inlet throat on each "side" of the apparatus. In accordance with additional embodiments, blower means are incorporated in at least one of the plenums, thus resulting in substantial economies, increased compactness, ease of installation, etc. |
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DETAILED DESCRIPTION According to the present apparatus and method, substantially uniform supply and exhaust velocities are achieved even in very "wide" (long) apparatus, in a economical and substantially non grease-collecting manner, and with relatively low profile.
These and other highly desired results are achieved by using extended exhaust and inlet plenum chambers which are constricted or baffled at certain critical regions which are vastly different from each other on the inlet and exhaust sides.
The constriction or baffle means in the inlet or supply plenum are provided between the supply duct and the "sides" (ends) of the apparatus.
Conversely, the baffle or constriction means in the extended exhaust plenum are provided between the exhaust duct and the central region of the filter means.
In the extended exhaust plenum, the baffle or constriction means are spaced away from the grease filters and are relatively adjacent the exhaust duct.
In both inlet and exhaust plenums, the duct diameter is preferably much greater than plenum "depth" (thickness).
The constriction or baffle means are, in accordance with one embodiment, adjustable to different settings.
In another embodiment the constriction or baffle means are economical and non grease-catching dimples or indentations.
In one embodiment, constriction or baffle means are provided in the inlet or supply throat at the "sides" (ends) of the apparatus.
In accordance with further embodiments, the blower means are incorporated in at least one of the plenums, thus achieving important advantages relative to economy of production, ease of installation, reduced size of the overall apparatus, etc.
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Heat Accumulators 
