US2587633A - Hot-air register - Google Patents

Description

Patented Mar. 4, 1952 UNITED STATES PTEVNT OFFICE HOT-AIR REGISTER Bayre Levin, Detroit, Mich. Application January 5, 1950, Serial No. 136,899 4 Claims. (01. 9s 114) This invention relates to hot air registers, and more particularly to a floor register construction.

Heretofore in the use of metallic floor registers there has been the disadvantage of their heating up from the hot air which is directed therethrough, and in some instances people have been burned by contact with such registers. It is the principal object of this invention to provide a floor register which will not heat up excessively, and this is accomplished by a floor register construction which includes an intermediate hot air insulating pad or plate, whereby the grill of said register will not attain a dangerously high temperature. This and other objects will appear from the following specification and claims in conjunction with the appended drawing in which:

Figure 1 is a plan-view of the present floor register construction.

Figure 2 is a section on line 2-2 of Fig. 1.

Figure 3 is a fragmentary section on line 3-3 of Fig. 2.

Figure 4 is a fragmentary section on line 44 of Fig. 2, and

Figure 5 is similar to Figure 2, being a variation thereof.

It will be understood that the above drawing illustrates merely a preferred embodiment of the invention and that other embodiments are contemplated within the scope of the claims hereafter set out.

Referring to the drawing a floor is fragmentarily indicated at H with sub-flooring shown at l2. Rectangular opening I3 is formed through sub-flooring l2 and partially into the floor Enlarged rectangular I4 is formed within the top portion of floor I at the upper end of opening I 3.

Rectangular hollow frame I5 for the floor register is positioned through floor opening I3, said frame having a peripheral flange l6 which is cooperatively received within the floor opening I4 so that the top surface of said flange is in alignment with the floor The flange I6 projects from the upper portion of the register frame l5, and a second inwardly projecting flange I! extends from the lower portion of said frame as shown in Figure 2, defining the central air opening l8.

A suitable preferably rectangular lower grill l9 with transverse perforations 20 is positioned within frame I5 and supported upon the flange IT, as indicated in Figures 2 and 4. The grill I9 is preferably metallic, however, it is contemplated that any other suitable material could be employed for this purpose.

Mounted upon the lower grill l9 within the frame I5 is a rectangularly shaped plate or pad 2| constructed of a heat insulating material, said plate being similarly perforated at 22, and with the perforations 22 being in substantial alignment with the perforations 20 of the grill I 9. While a relatively large perforation 20 and 22 is shown, it is contemplated that the perforations may be of any desirable shape or size. Preferably, however, the perforations 20 of grill l9 should be in substantial alignment with the perforations 22 of the insulator pad 2| as shown in Figure 2.

A top or cover grill 23 is mounted upon insulator pad 2| within the frame l5, said grill also having formed therethrough a plurality of transverse perforations or openings 24, which are arranged in substantial alignment with openings 29 and 22, above described. The exterior dimensions of the top grill 23 are such that said grill is snugly or tightly received within the central opening of the register frame l5. Furthermore, the grills l9 and 23, as well as the insulator 2|, are of such thickness that the top surface of grill 23 will be flush with the floor surface II.

It is contemplated however that the top grill 23 could be otherwise secured to the frame l5, such as by a series of screws.

A ceiling furnace 25 of the hot air type is shown in dotted lines in Figure 2 being suspended from the ceiling I2 by a plurality of brackets 26 secured to said ceiling by the screws or bolts 21. This represents one type of hot air source such as may be used in basementless homes, or in house constructions where it is desired to suspend the hot air furnace from the ceiling of the basement. In any event, the particular hot air source, whether suspended as shown, or mounted upon the basement floor, as a hot-air delivery pipe 28, which is adapted for communication with the inlet opening I 8 formed within the register frame I5, so that the hot air is supplied to said register.

It has been found that heretofore the hot air heats up the register grill to such a point as to be dangerous to humans or animals, and it is therefore primarily the object herein to provide a hot air insulating medium within the floor register so that the top grill will not attain such dangerous temperature. The grill 23 is preferably metallic to support the weight of an individual, however, it is contemplated that other materials could be employed which would have such rigidity.

The present embodiment shows the lower grill l9 which acts as a support for the insulator 2|. It is contemplated that this grill could be omitted if desired, and still attain the object above set out. However, it is apparent that this lower grill acts as a further support for the insulator pad.

As shown in Figure 1, the register frame I5 is immovably secured within the floor openings by a pluralityv of screws 29 which extend downwardly through openings in the flange l6 and into the floor ll.

While a rectangular frame is shown it is naturally contemplated that such frame could be of any desired shape, such as circular.

Fig. 5 is similar to Figure 2 but represents a slight variation in the construction of the register. A hollow rectangular frame I5 is shown similar to the frame I5 of Figure 2, however, it is apparent that said frame is not quite as deep.

A peripheral flange is also provided at the upper end of the frame for supporting said frame in exactly the same manner shown in Fig. 2. Similarly at the lower end of frame l5 there is also an inwardly extending flange upon which it issupported and secured the body of said register. The latter includes a plurality of parallel spaced metallic tubular elements 32 whose opposite ends extend over the interior inwardly extending lower flange of frame 15.

One or more reenforcing crossbars 3| are arranged below and transversely of the length of the tubes 30' with the respective opposite ends of said crossbars overlying portions of the inwardly extending flange of said frame as shown in Figure 5. Said crossbars may be secured to the tubular elements 3!? in any suitable manner such as by welding at points 33, to thereby provide a unitary and rigid structure.

'While in Figures 1 through 4 there is shown a separate heat insulating plate or pad 2! it is contemplated in the variation shown in Figure 5 that the respective tubes 39 be filled with a suitable, preferably non-metallic, heat insulating substance 32, to thereby render the tubes 30 substantially less heat conductive.

Having described my invention reference should now be had to the claims which follow for determining the scope thereof.

I claim:

1. In a hot air register for a floor having an opening in communication with a hot air source, a hollow frame in said opening, a peripheral flange around the upper portion of said frame supportably engageable with said floor, aninwardly projecting flange Within the lower portion of said frame, a perforated plate constructed of a heat-insulating substance positioned within said frame and supported upon said inwardly projecting flange, and a similarly perforated metallic grill positioned within said frame and supported upon said plate.

2. In a hot air register for a floor having an opening in communication with a hot air source, a hollow frame in said opening, a peripheral flange around the upper portion of said frame supportably engageable with said floor, an inwardly projecting flange within the lower portion of said frame, a perforated metallic grill within said frame supported upon said latter flange, a perforated plate constructed of a heat-insulating substance positioned within said frame and supported upon said grill, and a similarly perforated metallic grill positioned within said frame and supported upon said perforated plate.

3. In a hot air register for a floor, a pair of parallel spaced perforated metallic grills, and a similarly perforated pad constructed of a heatinsulating material interposed between and engaging said grills, with all said perforations being in substantial alignment.

4. In combination, a floor having an opening therethrough, a hot air source suspended from the under side of said floor adapted'to deliver a flow of hot air through said opening, and a register Within said opening consisting ofasupporting frame with a peripheral flange positioned within said opening and with said flange engaging said floor, an inwardly-extending flange on said frame, apair of spaced perforated metallic grills within said frame, upon saidlatter'flange, and a similarly perforated pad of heat-insulating material interposed between said grills.

BAYRE LEVIN.

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

UNITED STATES PATENTS Number Name Date 61,538 Harvey Jan. 29, 1867 541,204 Hallenbeck June 18, 1895 914,791 Clark Mar. 9, 1909 1,018,750 Farquhar Feb. 2'7, 1912 2,282,572 Graham 1 May 12, 1942 2,434,763 Feinberg Jan. 20, 1948 FOREIGN PATENTS Number Country Date 14,128 Great Britain 1912

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