US2918916A - Built in oven - Google Patents

Description

A. G. NELSON BUILT IN OVEN 2 Sheets-Sheet 1 f Filed Jan. 12, 1955 INVENTOR. 23 072 United States Patent BUILT IN OVEN Aver-d G. Nelson, Wisconsin Rapids, Wis., assignor to Preway Inc., a corporation of Wisconsin Application January 12, 1955, Serial No. 481,352

2 Claims. (Cl. 12621) This invention relates to a cooking oven and particularly to an oven adapted to be built into a wall or cabinet in the home or elsewhere.

Ovens adapted to be mounted in a cavity in a wall or cabinet have been available previously and have conventionally included panels at the front of the oven which frame the oven door or doors and overlap the periphery of the opening into which the oven is inserted in order to close the cavity, the oven being inserted into the cavity to a final position in which the rear faces of the panels at the front of the oven are in engagement with the front face of the wall or cabinet in which the cavity is provided.

It has been found that the panels at the front of the oven become well heated and transmit excessive heat to the wall or cabinet, which is often constructed of materials that easily become overheated, thus resulting in discoloration of the finish and the creation of a fire hazard.

It is a general object of the present invention to provide a new and improved built-in oven of the type described including means providing for proper ventilation of the panels at the front of the oven.

A more specific object of the invention is to provide a new and improved oven of the type described, having front panels framing the door, including a bottom panel, side panels and a top panel, each of the panels having openings at the top and bottom providing connecting passages into, through, and out the panels to adequately ventilate the panels and prevent overheating.

It is'also an object of the invention to provide a new and improved oven of the type described, having front panels framing the front door, including a top instrument panel having means to prevent overheating of the panel.

Another object is to provide a new and improved oven of the type described having front panels framing the door including means adjustably mounting the side panels to permit proper positioning with relation to the other panels.

Other objects and advantages will become readily apparent from the following detailed description taken in connection with the accompanying drawings,- in which:

Fig. 1 is an exploded perspective view showing an oven embodying my invention and a suitable cabinet structure in which it may be mounted;

Fig. 2 is an enlarged side elevation of the oven showing the means by which the bottom and side panels may be mounted;

Fig. 3 is a front elevational view of the oven, having arrows which indicate the path of air flow through the front panels;

Fig. 4 is an enlarged sectional view taken on the line 4-4 of Fig. 3, and having a portion broken away to show the openings at the bottom of the bottom panel; and

Fig. 5 is an enlarged sectional view taken on the line ice The invention further resides in the combination, con-.

struction and arrangement of parts illustrated in the accompanying drawings, and while I have shown therein a preferred embodiment, I wish it understood that the same is susceptible of modification and change within the scope of the appended claims. 7

Referring now to Fig. 1, I have illustrated a suitable cabinet structure 10 in which an oven 12 embodying my invention may be mounted. The cabinet 10 includes a rear wall 14, a front wall 16, side walls 18 and atop wall 20. The cabinet is essentially hollow and the front wall 16 is provided with an opening 22 in which the oven may be inserted. Rails 24 are mounted inside the cabinet to support the oven. Suitable electrical wiring 25 of a conventional type may be provided in the cabinet for connection to the oven to provide heat.

The oven 12 includes a casing 26 which defines an insulated cooking chamber. A door 28 is pivotally mounted by conventional means at the front of the casing 26 adjacent the bottom. The door is adapted to close the cooking chamber and may be partly opened for broiling or completely opened to provide access to the cooking chamber.

Front panels including a bottom panel 30, side panels 32, and a top panel 34 are secured to the front of the casing 26, framing the door 28. The oven is placed in the cabinet and moved rearwardly to its final position in which the panels overlap the perimeter of the opening 22, the rear of the panels being in flush engagement with the front face of the front cabinet wall 16. The walls of the oven casing 26 are spaced from the walls of the cabinet 10 to permit the free circulation of air so that vision is made to adequately ventilate thefront panels in order to prevent overheating. The panels are of ahollow construction and are provided with openings at the top and bottom which permit air to circulate freely through the panels.

Referring to Fig. 4, the bottom panel 30 is a hollow, rectangularly-shaped member which is open at the rear. The panel includes a bottom flange 36 having elongated cut-away openings 38 which admit room air to the interior of the panel. The panel includes a top flange 40 having openings 42 adjacent opposite ends which exhaust air from the interior of the panel. The panel is completed by side flanges at opposite ends of the panel as at'43 (Figs. 1 and 2). The panel 30 may be secured to the casing 26 by means which, as illustrated in Fig. i

2, may'include a rearwardly projecting prong 44 rigidly secured to the panel and adapted to be forcibly inserted into a receiving bracket 46 attached to the casing. The panel may be detached by withdrawing the prong, from the bracket '46.

The side panels 32 are identical and interchangeable, and. each comprises an elongated, essentially channelshaped member having side flanges 47 (Figs. 1, 2 and 4) and substantially open at both the top and bottom ends as a top flange 49 (Fig. 5) has an opening 49a of substantial proportions therethrough and a similar bottom flange 51 (Fig. 4) has a similar opening 51a therethrough. Each side panel is mounted on the casing 26 with the opening 51a at the bottomend in register with an exhaust opening 42 in the bottom panel 30, to admit air to the side panel. Each of the side panels is adjustably secured to the casing by means illustrated in Figs.

Patented Dec. 29, '1 959 2 and 5', including spaced brackets 48 rigidly secured to the panel and each having an elongated slot 50 which receives a bolt 52 adapted to be threaded into the casing. This means for adjustably mounting the side panels on the casing 26 permits the side panels to be properly adjusted in flush relationship to the door 28, the bottom panel 30 and the top panel 34. The mounting for the side panels also facilitates adjustment of the panels to place the end openings in register with associated openings in the top and bottom panels.

Referring to Figs. 1 and 3, the top panel 34 houses suitable instruments, indicated generally at 53, arranged across the casing above the door for controlling the heat supplied to the oven. Referring to Fig. 5, the panel 34 includes a bottom flange 54 having openings 56 adjacent its opposite ends, adapted to register respectively with the openings 49a at the top ends of the channel-shaped side panels 32. The panel includes a top flange 58 having spaced exhaust openings 60 which permit the circulating air to escape. The panel 34 is secured to the casing by suitable fastening means such as bolts illustrated generally at 62 inserted through suitable openings 64 provided in both the top and bottom flanges 54 and 58. The top panel is completed by side flanges 65 (Figs. 1, 2 and 5) at opposite ends of the panel.

Referring to Fig. 2, the top panel 34 is formed with an upwardly and outwardly inclined deflector portion 66 which is adapted to deflect hot gases from the cooking chamber away from the instrument panel 34 when the door 28 is opened, and particularly when the door is in a partly open position for broiling, as illustrated in Fig. 2.

When the oven is mounted in its final position the rear of the panels engage the front of the cabinet to define air passages. In operation, room air enters the bottom panel 30 through openings 38, passing out through the openings 42 into the open lower ends of the side panels 32, out of the side panels through the open upper ends, into the registering openings 56 in the bottom of the top panel 34 and out through the exhaust openings 60. The freely circulating air passing through the panels prevents the panels from becoming overheated and avoids the transmission of excessive heat to the cabinet front. The passage of ventilating air through the instrument panel 34 prevents the instruments from being damaged as a consequence of overheating. Additionally, the deflector 66 on the instrument panel directs hot air from the oven away from the instruments.

I claim:

1. An oven adapted to be mounted in a cabinet or the like comprising, in combination, a casing defining a coking chamber, a front door adapted to close the cooking chamber, generally flat front panels lying in the plane of the front door, framing the front door, and projecting outwardly from the casing in the plane of the door to engage the front of a cabinet when the oven is mounted, said panels including a bottom panel extending transversely beneath the door, side panels extending vertically at opposite sides of the door and a top panel extending transversely over the door, means for detachably securing the top and bottom panels to the casing, and means mounting the side panels for adjustment on the casing in a front to rear direction with respect to the door and the top and bottom panels, said panels each having rearwardly directed top, bottom and side flanges providing a hollow construction, the bottom flange on said bottom panel having at least one air inlet opening therethrough and the top flange on said bottom panel having at least two air outlet openings therethrough, the bottom flange on each side panel having at least one air inlet opening therethrough in register with one of the openings in the top flange of the bottom panel and the top flange on each side panel having an air outlet opening therethrough, the bottom flange on said top panel having at least two air inlet openings therethrough in register respectively with the air outlet openings in the top flanges of said side panels and the top flange on said top panel having at least one air outlet opening therethrough, thereby to ventilate the panels and prevent overheating when the oven is in use.

2. An oven adapted to be mounted in a cabinet or the like, comprising, in combination, a casing defining a cooking chamber having a front opening, a front door adapted to close the opening, and generally flat front panel means secured to the casing, lying substantially in the plane of the front door, framing the front door, and projecting outwardly from the casing in the plane of the door to engage the front of a cabinet when the oven is mounted, said front panel means including a bottom panel, side panels and a top panel, each having rearwardly directed side, top and bottom flanges and being engageable with the front of a cabinet when the oven is mounted to define air passages, said bottom panel extending transversely below the level of the door, one of said side panels extending vertically at each side of the door and each abutting the bottom panel, said top panel extending transversely over the top of the door and abutting both side panels, said bottompanel having at least one inlet opening in the bottom flange thereof to admit ventilating air, said bottom panel and said side panels having registered openings in the abutting flanges thereof to pass ventilating air from the bottom panel to the side panels, said side panels and said top panels having registered openings in the abutting flanges thereof to pass ventilating air from the side panels to the top panel, and said top panel having at least one outlet opening in the top flange thereof to exhaust air.

References Cited in the file of this patent UNITED STATES PATENTS 181,395 Bargis Aug. 22, 1876 254,868 Gudgeon Mar. 14, 1882 1,492,582 Smith May 6, 1924 2,303,772 Teichman Dec. 1, 1942 2,525,614 Nelson et al. Oct. 10, 1950 2,661,732 OKeefe Dec. 8, 1953 2,739,584 Hupp Mar. 27, 1956 2,752,217 Simon June 26, 1956 2,839,044 Phares June 17, 1958 FOREIGN PATENTS 511,141 Great Britain Aug. 10, 1939 OTHER REFERENCES Thor Corporation Publication, 1953.

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