US2577623A - Window ventilator - Google Patents

Description

Dec. 4, 1951 NIHON 2,577,623

WINDOW VENTILATOR Filed June 19, 1948 5 Sheets-Sheet l A I TUNA/EV Dec. 4, 1951 A. NIHON WINDOW VENTILATOR Filed June 19, 1948 3 Sheets-Sheet '2 AIIUH/VKZ Dec. 4, 1951 NlHON WINDOW VENTILATOR 3 Sheets-Sheet 3 Filed June 19, 1948 m/vnv rm? am 77% dwwamw ATTUHA/KY Patented Dec. 4, 1 951 UNITED WINDOW VENTILATOR- Alexis; NihomMontreal, Quebec, Canada Application June 19, 1948; Serial N 0. 33,959 In Canada October-16, 1946 2:0laims. 1

The invention relates to -improvements in window ventilators as-described in. the presentspecification and illustrated in the accompanying drawings that form a partof the same.

The invention consists essentially of the novel features of construction as -pointed out broadly and specifically in the-claims for novelty following a description containing an explanation in detailof" an acceptable form of the invention.

The objects of the invention are to devise a roombecomes normal or slightly lower; the window ventilator'willautomatically close; to' devise a window" ventilator which will tend'to prevent dust and, dirt entering the room; toconstruct' a window ventilator in which the ventilating members' may be built-up to-suit any size of Window; to provide a window'ventilator which will automatically open and close quietly without any noticeable noise; to devise a window ventilator which will permit-light to;enter a room when the ventilator is in either an open or closed position; and i generally to provide a Window ventilator which will automatically function at all times as the room temperature changes, and at the same. time, be; durable andeflicientfor its purpose.

Figure l is a front. elevation of the window ventilator.

Figure 2 is a plan sectional-view as taken'onzthe line 2.-2 in Figural.

Figure-3 is a vertical sectional view as taken on the line 3-3 in Figure-l showing the window ventilator ina closed position.

Figures is avertical'sectional View similar to; that of Figure 3 withthe exception, that the window ventilator is shown? in an; open ,positi0n.

Figure a side'view showing one: of-the stripsin the windowventilator.

Figure- 6 is an en'd'view of'Figure 5.

Figure 7 is: a.'.fragmentary perspective view showingea portion of the, side frame andgventilating strips.

Like numerals of reference indicate corresponding parts in the various figures.

Referring to the drawings, a conventional window frame, is indicated by the numeral'lll, and

the upper andz lower sash by the numerals H and [2 respectively; The upright. side members [3131111 Hi have-theupperand lower crossmembers [3A and MA welded or otherwise secured to same forming a rigid. ventilator-frame. These upper and. lower cross members HA and MA serve to accuratelyspace the side members l3'and M" and are not securedv to the window frame. These upright side members 13 and Hi on which the window ventilator is mounted are secured to the window frame l0 at each side thereof by screws or other suitable means. The upright side members i3 and M are 2 shaped" in this instance, but: could be any other suitable shape without generally afi'ecti'ng the advantages of the invention. The upright strips or upright louver mounting bars I5 and I6 arewelded or otherwise secured to the inner side of the upright side members I3 and M respectively. These upright strips have a plurality of slots or cutouts IT in which the movable members or'ventilating strips I 8 are pivotally mounted.

The movable members or ventilating strips I8 may be made of glass, plastic, or any other translucent material that will permit light to pass through. The pins 19 are fixedly secured in the ends of these ventilating strips it towards the upper edge of same. In assembling the ventilatingstrips t8, the pins l9 are inserted in the slots ITin-the upright strips I5 and I6. The shape-of the slots l'l permit the pins [9 to enter the same and then drop downward so that they are substantially held in these slots. The venti lating strips l8 are pivotally secured in the upright strips [5 and I6so that the horizontal edges of the same areadjacent to one another when in a closed position.

The thermostat 26- is suitably located in the room to be ventilated and-connected to the motor 2-: bymeans of theelectric wiring 22. The motor 21 is mounted on the wall at the side of the window frame I fl-so-as to be in a suitable position for operating the; ventilating strips l8. Thismotor. is of" a slow operating type providing a means of" gently opening and closing the ventilating strips it. The crankarm 23 is fixedly secured to .a rotating; shaft in the motor 2|. The bracket 2:4. isfixedly securedto the verticalmovable strip or louver connecting bar 25. A connecting arm ,z la'isfipivotally secured to the, lower end. of. the

bracket 24'. andalso. pivotally secured to, the outer endlofthe. crank arm 23 thus providinga. means 7 of raising and lowering the movable strip 25. A

25 and extend outward therefrom, passing through slots 21 in the upright side member l3 a suitable distance. The free end of these connecting arms 26 have the clamps 28 welded or otherwise secured thereto. These clamps are U-shaped and provided with a clearance hole for the pins 19, thus permitting the same to fit securely over the end of the ventilating strips I8.

In the operation of the window ventilator the thermostat determines the operation of the motor 2 I. than normal the window ventilator is in a closed position. As the temperature in the room rises above normal the thermostat 20 completes the electric circuit to the motor 21, which in turn, operates sufficiently to open the ventilating strips I 8. As the motor 21 rotates the crank arm 23 turns in a predetermined are thus lowering the bracket 24 by means of the connecting arm 24a. The bracket 24, which is fixedly secured to the vertical movable strip 25, thus lowers the latter. As this movable strip 25 moves downward the connecting arms 26, which are pivotally secured thereto, tilt the clamps 28 and ventilating strips l8 which are rotatably mounti.

.ed in the slots I! in the upright strip [5. The slots I! in the side member is are of sufficient length to permit the free movement of these connecting arms.

When the room temperature drops to a point f below normal the ventilating strips are closed as the device operates in the opposite direction to that described in the foregoing.

It will be noted that the ventilating strips [8 shown in Figure 7 overlap one another instead of abutting one another as shown in Figure 1, thus providing an alternative manner of assembling the same.

It will be seen that the invention as described herein will provide a means of automatically regulating room temperatures during the day and night, thus rendering the same adaptable for use in offices, homes and the like.

What I claim is:

1, In window ventilators, a window frame, upright side members, and upper and lower cross members secured to said upright side members forming a rigid ventilator frame and supported within said windo frame, said upright side members being 2 shaped, and upright louver mounting bars extending parallel to said upright side members within said window frame, said upright louver mounting bars having a plurality of slots therein, movable ventilating louvers pivotally mounted in the slots in said upright louver mounting bars, said movable ventilating louvers being made of a translucent material, pins fixedly secured in the ends of said movable ventilating louvers towards the upper edges thereof, said pins being inserted in the slots in said upright louver mounting bars for movably supporting said movable ventilating louvers, a thermostat suitably located in a room to be .ventilated, a motor suitably located with re spect to said movable ventilating louvers, electric wiring connecting said motor with said thermostat, said motor being of a slow operating type, a crank arm fixedly secured to a rotating shaft in said motor, one of said upright side members having a plurality of elongated slots therein and suitably spaced apart with respect to one another, horizontal connecting arms fixedly secured to one end of each of said movable When the room temperature is lower ventilating strips and extending through the elongated slots in said upright side member, a louver connecting bar pivotally connected to the free end of each of said horizontal connecting arms, means connecting said louver connecting bar with said crank arm. for imparting a reciprocating motion in said louver connecting bar up on the operation of said motor. v

2. In window ventilators, a window frame, upright side members. and upper and lower cross members secured to said upright side members forming a rigid ventilator frame and supported within said window frame, said upright side members being Z-shaped, and upright louver mounting bars extending parallel to said upright side members Within said frame, said upright louver mounting bars having a plurality of slots therein, movable ventilating louvers pivotally mounted in the slots in said upright louver mounting bars, said movable ventilating louvers being made of a translucent material, pins fixedly secured in the ends of said movable ventilating louvers towards the upper edges thereof, said pins being inserted in the slots in said upright louver mounting bars for movably supporting said movable ventilating louvers, a thermostat suitably located in a room to be ventilated, a motor suitably located with respect to said movable ventilating louvers, electric wiring connecting said motor with said thermostat, said motor being of a slow operating type, a crank arm fixedly secured to a rotating shaft in said motor, one of said upright side members having a plurality of elongated slots therein and suitably spaced apart with respect to one another, clamps substantially secured to one end of each of said movable ventilating louvers, horizontal connecting arms fixedly secured to each of said clamps and extending through the elongated slots in said upright side member, a louver connecting bar pivotally con: nected to the free end of each of said horizontal connecting arms, a bracket fixedly secured to said louver connecting bar, and a connecting arm pivotally secured to the lower end of said bracket and to the free end of said crank arm on saidmotor thus providing a means of raising and lowering said louver connecting bar and accordingly tilting said movable ventilating louvers upon operation of said motor.

ALEXIS NIHON.

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

UNITED STATES PATENTS Number Name Date 335,353 Hayes Feb. 2, 1886 369,801 Markland Sept. 13, 1887 418,193 Kolzem Dec. 31, 1889 1,178,971 Thode Apr. 11, 1916 1,488,345 Jenkins Mar. 25, 1924 1,570,111 Wickware Jan. 19, 1926 1,611,845 Allen Dec. 21, 1926 1,763,888 Vernet June 17, 1930 2,158,413 Feinberg May 16, 1939 2,159,696 Gross May 23, 193E) FOREIGN PATENTS Number Country Date 171,946 Great Britain Dec. 1, 1921

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