US2221497A - Ventilator - Google Patents

Description

S. l. THOMAS Nov. 12, 1940.

VENTILATOR Filed April 1, 1940 Samuel J. Thomas Patented Nov. 12, 1940 UNITED STATES PATENT OFFICE 2,221,497 VENTILATOR Samuel I. Thomas, Emporia, Kans. Application April 1, 1940, Serial No. 327,355

3 Claims.

Theinvention relates to a ventilator and more especially to a window ventilator.

The primary object of theinvention is the provision of a ventilator ofthis character wherein its construction enables the use thereof with a storm sash or a stock window construction of conventional makeup, thus eliminating the necessity of altering the character of either the sash or the window makeup for the use of said ventilator.

Another object of the invention is the provision of a ventilator of this character wherein the construction thereof makes it possible for the removal of foul air from the top of an enclosure without creating a draft or admitting cold air into the said enclosure and thus rendering the enclosure more healthful.

A further object of the invention is the provision of a ventilator of this character wherein the same may be left open during storms or inclement weather without any bad results as the air in the top of an enclosure is under sufficient pressure that it continues to fiow out through the ventilator against the outside atmospheric pressure and when the ventilator is in continued use throughout the seasons of a year, during the summer months the enclosure will be rendered cooler due to the operation of the ventilator and in winter the outside cold will be excluded from entering the enclosure. 1

A still further object of the invention is the provision of a ventilator of this character, which is simple in its construction, thoroughly reliable and efficient in operation, easy of installation, durable, and inexpensive to manufacture and install. 1

With these and other objects in View, the invention consists in the features of construction, combination and arrangement of parts as will 40 be hereinafter more fully described in detail, illustrated in the accompanying drawing, which discloses the preferred embodiment of the ,invention and pointed out in the claims hereunto appended.

In the accompanying drawing:

Figure l is a perspective view of a window in cluding a storm sash showing the ventilator constructed in accordance with the invention applied for service.

Figure 2 is an enlargedfragmentary vertical transverse sectional view taken through the window and ventilator.

Figure 3 is a fragmentary vertical transverse sectional view on a further enlarged scale than I 56 in Figure 2 showing in detail the ventilator.

Similar reference characters indicate corresponding parts throughout the several views in the drawing.

Referring to the drawing in detail, A designates generally a window frame provided with the usual guide rails or strips 10 for vertically slidable lower and upper glass paned sashes ii and I2, respectively, the window in its entirety being of stock makeup and conventional in all details.

In this instance there is removably fittedin the window frame A at the outside thereof a glass paneled storm sash I3 which in its length is slightly less than the longitudinal extent of the window frame A so as to accommodate between it and the said frame for association therewith the ventilator constituting the present invention and hereinafter fully described.

The ventilator comprises a sheet metal body formed with a flat bottom I 4, vertical ends l5, flat top l6 and an outwardly sloping front shield or hood ll, respectively. The shield or hood I! is joined with the ends l5 through overlapped portions 18. This shield or hood is carried a distance below the plane of the bottom l4 and is formed with an inturned lower edge flange [9.

The body thus constituted forms an airway therethrough, as indicated by the arrow in Figure 2 of the drawing, from without to within an enclosure through the window A.

Arranged within the body and joined with the bottom ends and top thereof is a wire mesh screen 2!] which excludes insects or the like from gaining entrance from without to within an enclosure through the ventilator. This screen 20 is of hardware cloth and is attached at 2| to the top I 6 of the body of the ventilator.

, The bottom I4 has a downturned lip or flange 22 at a forward edge thereof to overlap the upper rail 23 of the storm sash [3 to close the joint between the ventilator and, the said sash when the body of such ventilator is interposed between such sash and the head or top of the frame A.

The bottom [4 of the ventilator at the uppermost edge thereof has an upwardly angled extension 24, the angle being to the horizontal and substantially equals the width of a parting strip 25 between the sash l3 and the upper sash l2 of the window frame A. Thus this extension 24 closes the gap created by the strip 25 between the upper sash l2 and the sash l3 when the said upper sash is lowered from a closing position to have its uppermost rail make contact with the said extension 24 as shown in Figure 3 of the drawing.

Of course it is to be understood that when the storm sash I? has been removed from the window frame A the ventilator body can be fitted between the upper rail of the upper sash l2 in the head or top of the window frame A so that ventilation will be had through the window at the uppermost portion thereof. The shield or hood I! avoids any ingress of rain, sleet or snow during the winter months from without to within an enclosure through the window frame A and the ventilator when in use therewith.

The ventilator is susceptible of use with the storm sash or with the window of conventional or stock construction when such storm sash has been removed therefrom, this being optional with the possessor of said ventilator.

The screen 23 can be soldered or otherwise attached in position within the body of the ventilator.

The ventilator when fitting a window will not interfere with the raising and lowering of its sashes, both upper and lower, and thorough ventilation may be had thereby assuring a clean atmosphere within the enclosure and proper ventilation of the same.

What is claimed is:

1. A ventilator of the kind described comprising a'body having a longitudinal dimension for fitting a window and including a bottom, ends and top, respectively, arranged for air flow therebetween, a sloping shield extending from the top to a point below the plane of the bottom of said body, a downturned flange at the forward edge of the bottom and effective as an overlap to a sash of the window, anda lip extending from the rear portion of the bottom for closing a gap between the said body and the sash next thereto.

2. A ventilator of the kind described comprising a body having a longitudinal dimension for fitting a window and including abottom, ends and top, respectively, arranged for air flow therebetween, a sloping shield extending from the top to a point below the plane of the bottom of said body, a downturned flange at the forward edge of the bottom and efiective as an overlap to a sash of the window, a lip extending from the rear portion of the bottom for closing a gap between the said body and the sash next thereto,

and a screen located within the body.

3. A ventilator of the kind described comprising a body having a longitudinal dimension for fitting a window and including a bottom, ends and top, respectively, arranged for airflow therebetween, a sloping shield extending from the top to a point below the plane of the bottom of said body, a downturned flange at the forward edge of the bottom and effective as an overlap to a sash of the window, a lip extending from the rear portion of the bottom for closing a gap be-

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