US2153075A

US2153075A - Ventilator blind

Info

Publication number: US2153075A
Application number: US209343A
Authority: US
Inventors: Copeland Tilden
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-05-21
Filing date: 1938-05-21
Publication date: 1939-04-04
Anticipated expiration: 1956-04-04

Description

April 4, 1939. T. COPELAND VENTILATOR BLIND 2 Sheets-Sheet Filed May 21, 1938 A itorneys April 4, 1939. T. COPELAND VENTILATOR BLIND Filed May 21, 1958 2 Sheets-Shem 2 Inventor 17/6560 o/ze/a/mi By Patented Apr. 4, 1939 UNITED STATES PATENT OFFICE 4 Claims.

This invention appertains to new and useful improvements in blinds such as can be used on windows and doors, the same being of the ventilating type, permitting entrance of air to the desired regulated degree.

The principal object of the present invention is to provide a ventilator in the nature of Venetian blinds which can be readily controlled in a more accurate and satisfactory manner than the conventional types of Venetian blinds now in general use.

Another important object of the invention is to provide a blind which can be conveniently regulated to control the volume of air passing therethrough.

These and various other important objects and advantages of the invention will become apparent to the reader of the following specification.

In the drawings:--

Figure 1 represents an inside elevational view of a window equipped with the novel blind struc ture.

Figure 2 is a sectional view taken substantially on the line 2-2 of Figure 1.

Figure 3 is a fragmentary enlarged detailed sectional view taken substantially on the line 33 of Figure 1.

Figure 4 is a fragmentary enlarged detailed sectional view on the line d-t of Figure 1.

Figure 5 is a fragmentary enlarged detailed sectional view taken substantially on the line 5-5 of Figure 1.

Referring to the dr ratings wherein like numerals designate like parts, it can be seen in 35' the drawings, and particularly Figure 2, that numeral 5 represents a window frame in which is located the upper sash 6 and the lower sash l.

Numeral 8 generally refers to the blind structure forming the present invention which is situated 40 at the inside of the window frame.

This blind consists of the frame made up of the side stiles 9 and ii) in conjunction with the upper and lower rails H and 12.

The inner sides of the stiles 9 and H] are formed with vertically spaced openings for receiving the trunnion-like extension H3 at the ends of the louvers M, the upper edge portions of which overlap the lower edge portions of adjacent louvers when the same are in closed position as shown in full lines in Figure 3. It can be seen particularly in Figure 3, that the trunnions l3 are located in alignment with the lower edge portions of the louvers and that the upper edge of each louver has an eye l5 driven into the same and disposed through a complementary eye IS on the control bar ll, this control bar I! traversing vertically the intermediate portions of the louvers It.

The upper end portion of the control bar I! is bifurcated to receive the adjacent end of the 5 strap l8 and securing means I9 retains this end of the strap to the bifurcated end of the bar ll. The strap I8 is formed with openings .at equal spaced intervals and is disposed over the upper rail II as shown in Figure 3. An eye member or like projection 20 extends upwardly from the upper rail H and this can project through any one of the openings of the strap It to hold the louvers I4 in the proper relation, one position being shown in broken lines in Figure 3.

A cord or like flexible element 2| extends from the upper end portion of the bar H and through the eye 22 and also through the eye 23 at the upper end of the stile II]. From this point the cord 2| depends and is equipped with the knob 26 at its lower end.

Obviously, in the event the upper rail H is too high to be conveniently reached, the knob 2t and cord 2| can be used.

The outer edge portions of the stiles 9 and it) are grooved as at for receiving the outstanding flanges of the angle strips 26, these strips being secured to the vertical portions of the window frame 5 as suggested in Figures 2 and 4. Thus it can be seen that the blind 8 can he slid upwardly so that access can be had to the lower sash l. I

While the frame can be constructed in various manners, it is preferable that the lower edge portion of the upper rail H and the upper edge of the lower rail l2 be rabbetted as at 21 and then beveled as at 28 to accommodate the adjacent end portions of the louvers I4.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the claimed as new is:-

1. A blind structure comprising a frame, a plurality of swingably mounted louvers in the frame, a control bar extending vertically across the louvers, connections between the louvers and the control bar, a projection on the upper portion of the frame, a strap extending over the frame and having openings therein for receiving the said projection, one end of the strap being secured to the control bar.

invention, what is 2. A blind structure comprising a frame, a plurality of swingably mounted louvers in the frame, a control bar extending vertically across the louvers, connections between the louvers and the control bar, a projection on the upper portion of the frame, a strap extending over the frame and having openings therein for receiving the said projection, one end of the strap being secured to the control bar, and a slideway for the said frame.

3. A blind structure comprising a frame, a plurality of swingably mounted louvers in the frame, a control bar extending vertically across the louvers, connections between the louvers and the control bar, a projection on the upper portion of the frame, a strap extending over the frame and having openings therein for receiving the said projection, one end of the strap being secured to the control bar, said louvers being provided with supporting trunnions projecting beyond the lower edge portions thereof and into the said frame.

4. A blind structure comprising a frame, a plurality of swingably mounted louvers in the frame, a control bar extending vertically across the louvers, connections between the louvers and the control bar, a. projection on the upper portion of the frame, a strap extending over the frame and having openings therein for receiving the said projection, one end of the strap being secured to the control bar, and a pull cord having one end secured to the upper end portion of the control bar, and guide means on the frame through which the pull cord is trained.

'I'ILDEN COPELAND.