US2582884A

US2582884A - Cooking range hood

Info

Publication number: US2582884A
Application number: US118750A
Authority: US
Inventors: Herbert E Nicol
Original assignee: Individual
Current assignee: Individual
Priority date: 1949-09-30
Filing date: 1949-09-30
Publication date: 1952-01-15
Anticipated expiration: 1969-01-15

Description

1952 H. E. NICOL COOKING RANGE HOOD Filed Sept. 30, 1949 Q WOMO HEFIJErIEJNI DUI- GMOMM Patented Jan. 15, 1952 UNITED STATES T OFICE 2 Claims. 1

This invention relates generally to ventilated hoods for collecting and exhausting odors and heated gases of combustion from the top of cooking ranges.

Elimination of obnoxious odors and excessive temperatures occurring in domes-tic kitchens presents a difiicult problem, which conventional methods have failed to satisfactorly solve for several obvious reasons.

To collect and dispose of a comparatively small volume of heated gases arising from cooking food, as well as the actual products of combustion from an open flame, is relativelysi-m-ple, but diff.- culty arises from the fact that such heated gases quickly contaminate a large volume of surrounding air that is troublesome to control.

To meet the foregoing condition, large collection hoods, necessarily spaced :a substantial distance above the range, and large capacity exhaust blower systems have been employed. Such hoods are objectionable because of their unsightly size, and the fact that by the time the grease-ladened gases reach the hood they become sufficiently cooled to cause condensation and accumulation of 'greaseon the inner surf-ace of the hood, which "is objectionable from the standpoint of cleanliness and sanitation.

With a large capacity fan or blower, a considerable volume of exhausted a'ir must be replenished byoutside air which, during cold weather materially increases the heating load. If replacement air is drawn through other rooms in the building, a partially contaminated circulation is frequently set up to foul the air throughout the structure.

The salient feature of the present invention resides in the provision of a comparatively small compact hood vented by a low capacity blower, or through a natural draft flue, and positioned closely adjacent the top of a cooking range to collect odors and heat of combustion at their source, before they have had opportunity to contact and affect an uncontrollable volume of surrounding atmosphere.

Incidental to the foregoing, a still further object of the invention is to provide the hood with an adjustable transparent front visor to facilitate access to utensils during the cooking operation, and also afford unrestricted view of the work at all times.

In addition to the foregoing, other objects will appear as the description proceeds, and while the accompanying drawing illustrates one complete physical form of the invention constructed in accordance with the best mode so far devised, it is to be understood that changes in the precise em- 2 bodiment of the invention are contemplated within the scope of the appended claims.

In the drawing:

Figure l is a perspective View of a typical home kitchen installation consisting of a gas range and matching cabinets, the invention being applied thereto;

Figure 2 is a vertical sectional view through the hood incorporating principles of the present invention, the same being taken on the line 22 of Fig. 3; and

Figure 3 is a horizontal sectional view taken on the line 3-3 of Figure 2.

Referring now more particularly to the accompany'ing drawing, Figure 1 illustrates a convent'ional gas stove 4, equipped with a top burner grill installed against a kitchen wall 7, between a pair of conforming cabinets 6, which serve as convenient work shelves and storage compartments. Attached to the wall I, in substantial vertical alignment with the stove 4, is a hood '8 consisting of a rear wall 8 and side walls It connected by an arcuate front sector I I. The upper portion of the hood 8 is provided with a partition shelf I2 forming a compartment I3 for housing a motor actuated blower I4, to which an exhaust vent I '5 is connected. The compartment I3 is preferably closed by hinged doors I6, to provide access to the blower and simulate adjacent storage cabinets I'I.

Pivotally connected to the side walls N3 of the hood 8, adjacent their rear edges, is a visor I8 comprising a pair of side arms connected by an' arcuate front frame 28. The arms I9 and frame 29 are preferably of skeleton structure provided with transparent windows 2i to afford unrestricted View of utensils positioned on the grill 5 and the top plate of the stove. As best shown in Figure 2, the visor I8 is supported in its lower operative position by an inturned lip I I formed on the lower edge of the arcuate front plate I I. A suitable handle 22 attached to the lower edge of the arcuate frame 20 facilitates raising and lowering the visor I8 to selective adjusted positions, in which the visor is held by frictional pintles or conventional types of counter-balance devices (not shown).

Positioned within the upper portion of the hood 3 and extending rearwardly from a point adjacent the lip I I is an inclined deflector plate 23 terminating at its upper edge a sufficient distance from the rear of the hood, to provide an elongated opening 24 through which odors and gases are drawn by the blower I4 through an opening I2 formed in the partition shelf I2.

A horizontal plate 25 extends between the front H of the hood and the upper edge of the inclined plate 23 to close the top of a compartment 26 defined by the arcuate hood front I I and the inclined plate 23, into which the visor I8 is raised from its lower operative position.

Obviously, the deflector plate 23 also serves to protect the transparent visor I8 against the effect of concentrated columns of heated air directly above the burner grill 5, when the visor is raised to its top position, shown in dotted lines in Figure 2.

Side panels 23', secured to the back wall 9 of the hood, and spaced slightly from the side walls to provide space for the visor arms I9, support the deflector plate 23. A restricted opening 25', formed in the plate 25, vents the compartment 26 to prevent accumulation of gases within the same.

From the foregoing explanation, considered in connection with the accompanying drawing, operation of the present invention will be apparent, in that odors and heated gases of combustion arising from the stove and collected within the hood 8 will be continuously exhausted by the blower I4, or natural flue draft, through the duct l to outside atmosphere.

During normal cooking of odorous food, the visor I8 is adjusted to its lowest position as shown in Figure 2, and because of its close proximity to the top of the stove and burner grill 5, obviously a rising column of heated air surrounding a utensil positioned on the grill 5 (solid line arrow, Fig. 2), as well as odors (wavy arrow) confined within the rising converging column above the utensil, will be entrapped within the visor at their source, and discharged from the top of the hood, by the blower I4, before the same have had suflicient time to contact a large volume of room atmosphere (dotted arrows) and becomes cooled sufficiently to cause condensation on the inner walls of the hood.

During the cooking operation a clear view of the utensils is afforded by the transparent front and side windows 2| of the visor l8, and the handles of the utensils are readily accessible for shifting the same without disturbing the visor. When it is desired to have full access to the cooking utensils, the visor can be quickly lifted to its uppermost position as indicated in dotted lines in Figure 2. When non-odorous operations are performed, such as boiling water and the like, the visor ill need not be lowered unless it is desired to eliminate radiation of heat from the gases of combustion.

In addition to collecting odors and gases at their source, by means of a comparatively compact hood and a small capacity blower, or natural fiue' draft, it will be appreciated that the visor l8 also serves to confine spattering grease occurring during frying operations. Also, because of its convenient location, the interior of the visor is accessible for easy wiping and cleaning of the transparent windows 2|.

What I claim is:

1. An apparatus of the character described comprising, a hood for support above a cooking range in close proximity to its burners and comprising a transparent visor pivotally connected to said hood to form a lower front portion of the same, the front of said visor being arcuate in cross section, a deflector plate mounted in said hood forming a compartment for reception of the arcuate front of said transparent visor and serving to protect said visor against concentrated columns of heated air when said visor is swung to raised position, and means for venting said hood to outside atmosphere.

2. An apparatus of the character described comprising, a hood for support above a cooking range in close proximity to its burners and comprising a transparent visor pivotally connected to said hood to form lower front and side portions of the same, the front of said visor being arcuate in cross section, a deflector plate mounted in said hood forming a compartment for reception of the arcuate front of said visor when raised, and an exhaust fan positioned above said deflector plate for venting said hood.

HERBERT E. NICOL.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 607,976 Amos July 26, 1898 913,465 Brouillet Feb. 23, 1909 1,038,287 Carpenter Sept. 10, 1912 1,463,242 Biggs July 31, 1923 1,650,859 Anderson Nov. 29, 1927- 1,885,016 Ryan Oct. 25, 1932 2,077,496 Sonntag Apr. 20, 1937 2,341,245 Sonntag Feb. 8, 1944 2,478,253 Doner Aug. 9, 1949 FOREIGN PATENTS Number Country Date 111,618 Sweden Aug. 29, 1944