US2605831A - Adjustable ventilator screen - Google Patents

Description

g- 5, 1952 D. J. RUST ETAL 2,605,831

ADJUSTABLE VENTILATOR SCREEN Original Filed March 25, 1949 2 SHEETSSHEET 1 mvzm'rons .DauLd J. Rust Ja ck J-LJensen ATTOR NEYS g- 5, 1952 D. J. RUST ET AL ADJUSTABLE VENTILATOR SCREEN Origina l Filed March 25, 1949 ZSHEETS-SHEET 2 mvsn'rons .DavidJRuSZ Jack JLJnsen MiTv-MZL ATTORNEYS Patented Aug. 5, 1952 ADJUSTABLE VENTILATOR SCREEISF David Jordan Rust and Jack H. Jensen, San Leandro, .Calif., assignors to Ry-Lock Company, Ltd., San' Leandro, Calif., a corporation of California Original application March 25, 1949, Serial No. 83,388. Divided and this application May 7,

1951, Serial No. 224,956

2 Claims. ((11. 160-375) This invention is directed to ,a portable, initially separate, manually installed, ventilator screen adapted for use in an otherwise unscreened window to cover a partial opening thereof the present application being a division of copending application, Serial No. 83,388, filed March 25, 1949, now Patent No. 2,564,011.

A major object of. this invention is to provide a ventilator screen, for the purpose described, which is readily adjustable in length for engagevide a ventilator screen, as above, which embodies a novel guide arrangement between the main screen structure and the slides, so that the latter may be readily slid in or out as necessary to lit the device to a window frame.

Another important object of the invention is .10 ment in window frames of different widths; the

to provide a ventilator screen which, when in place in' a window frame, permits of adequate ventilation through a partial opening of the window, yet allows the adjacent window sash to be opened or closed at wi1l,;and withoutmanipulation or removal of said screen; the latter forming an effective fiy'and insect proof closure with the Window frame and adjacent partially open window sash.

It is also an object of the invention to provide a ventilator screen which'is of a simple design which is easy and economical to manufacture, but nevertheless is of durable, weather resistant metallic construction, so that the device can remain in place in a window frame from season to season. V g

I Still another object of the invention is to provide apractical and reliable adjustable ventilator screen, and one which will be exceedingly effective for the purpose for which it is designed.

These objects are accomplished by means of such structure and relative arrangement of parts as will fully appear by a perusal of the following specification and claims.

In the drawings:

Fi 1 is an inside elevation, foreshortened, of the adjustable ventilator screen.

Fig. 2 is an outside elevation, foreshortened, of said screen.

' Fig. 3 is anenlarged cross section on line 3-3 of Fig. 1.

Fig. i is an enlarged fragmentary sectional plan view on line 4-4 of Fig. 1.

Referring now more particularly to the characters of reference on the drawings, the novel, adjustable ventilator screen comprises a main screen structure or border frame, indicated generally at I; such border frame including a hori zontal top rail 2 and a horizontal bottom rail 3 spaced apart vertically a substantial distance.

The top rail 2 and bottom rail 3 are connected, at opposite ends, by flat end posts 4 disposed on the inside. and afiixed to said rails by flush connections, such as spot-welding 5; the upper ends of such posts 4 being out-turned over the upper edge of the top rail 2, as at 6, for the reason hereinafter described.

The main screen structure or border frame I comprised of the rails land 3, and posts 6, is fitted with a screen section 1, which section is secured in place as follows:

The top rail 2 is formed along its lower edge'portion, and the bottom 3 is formed along-its upper edge portion, with U-shaped channels, indicated at 8 and 9 respectively; the channel 8 opening upwardly and the channel 9 opening downwardly. The screen section 1 is folded along its upper and lower longitudinal edgeportions, as at I II,

and as so folded is clamped in the corresponding channels 8 and 9; the screen turnin out of the channels and lying flush against the back or inner sides thereof. The channels 8' and 9 are offset forwardly, as shown, a distance such that the screen section 1 and the back or inner sides of the rails 2 and 3 are in substantially the same vertical plane.

The main screen structure or border fram I- is fitted, at opposite ends and on the outside, with upstanding, relatively wide slides ll such slides being mainly flat but vertically ribbed, as at l2, for strength. a At the top and bottom the slides H are each formed with inwardly ofiset transverse tongues l 3 which ride the outer face of the rails 2 and 3 above and below the channels 8 and 9, respectively. The tongues I3 also engage in slidable relation in upper and lower longitudinal chanlaterally outermost edge, with an out-turned flange [8 which extends verticallyfull distance between the channels 8 and 9, covering theends of the latter.

With the arrangement of the cooperating inturned flange l and out-turned flange 18, each slide II is limited in the extent to which it can be laterally outwardly projected; this for the reason that the flange it will abut the flange I8, preventing separation of the parts.

Also, by reason of the fact that each inturned flange 16 extends to apoint close to the screen section 1, entry of flies or other insects through the space I! is prevented.

At their laterally outermost edges the slides H are each formed with forwardly ofiset shoulders 19, which shoulders have locator. lips "23 projecting laterally outwardly from theirforemost edges.

Each of the slides H is fitted,"central1y between the top and bottom thereof and adjacent the laterally outermost edge, with a friction locking device, indicated generally "at 2!, and which device is described in detail, with "respect to its structure and. function, in the aforesaid copending application.

When .the above described ventilator screen is in use, it is engaged in-a window frame, indi- .cated generally at 22, in the manner shown in Figs. 3 and 4; the device resting at its lower edge on the sill 23,, and the slides ll being adjusted laterally outward untilthe shoulders l9 and locator lips matchingly engage from the front with the adjacent parting beads 24 of said window frame. The-locking devices 2| are then disposed in the adjacent sash channels 25, and are manipulated to engage against a forward stop 26 whereby to forcefully but releasably secure the ventilator screen inplace.

When the ventilator screen is in use in a window frame, as above,-the lower sash 21 is partially open, with its bottom cross bar 28 some distance above the sill 23, but not above the top rail 2 of the device. This permits'of ventilation through-the screen section 1, yet the device is fly and insect proof by-reason of the fact that there is substantially complete closure with the sill 23, bottom cross bar 28 of the lower sash 21, and the parting beads 24. 'It should also be noted that the adjacent portion of the lower sash 21 runs in close face to face relation to the fiat end posts e; the upper ends or tips '6 of said end posts being out-turned, as shown, to assure against said ends or tips undesirably biting into the sash 27 asthe latter is moved up or down.

The described adjustable ventilator screen is r formed, in the frame parts thereof, wholly of sheet metal-preferably of an aluminum alloy, thus being weather-proof and rust-resistant. Consequently, the ventilator screen may remain in place in awindow frame forextended period of'time without deterioration; the design being such that when in place the ventilator screen does not obstruct normal opening and closing of "the sash 21.

From the foregoing description it will be readily seen that? there has been produced. such a 'device as'sub stantially fulfills the objects of the invention, as' set .forth herein.

While this specification sets forth in detail the vpresentand preferred construction of the device, still inpractice such deviations from such detail -may"be resorted to as do not form a departure I from thespirit of the invention, as defined by the appended claims. 2

Having thus described the invention, the follow'ing is claimed as new and useful, and upon which Letters Patent are desired:

11. An adjustable ventilator screen comprising a sheet metal border framehavingtopand bottom rails. and strap like end posts secured against the front face of the rails, said railsand posts defining a rectangular o.pening','the ,rails along their opening-forming edges being provided with longitudinalchannels facing-away from-the opening and offset back from the posts-Ia rectangular screen .panel behind and overlapping the posts with its top .and; bottom portions clamped in said channel's, upstanding sheet metal slides at theopposite ends of the border frame back of the,..same, the top and bottom portions of-said slides being bentto follow the upper'and lower edges of the upper and lower channels respectively and to then bear againstthe back of the rails above. and below-the top and bottom channels to adjacent the top and bottom edges of said top and bottom rails, and guide channels formed along such edges of the railsin which the corresponding edge portions of the slides age. i I.

2. Ascreen'as inclaim Linwhich the laterally inner edges of the-slideabetween the upperi'and lower channels are deflected to adjacent the screen,. while the laterally outer edges of. the

posts, between the upper and lower channels are formed with rearwardly projecting flanges "extending to adjacent the slides.

DAVID JORDAN Rus'r." JACK n. 'JENSE-NJ- REFERENCES CITED The following references are of recordin the ,file of this patent:

UNITED" STATES PATENTS f,

Date

-.Allen, Dec. 29,1931

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