Патент USA US2117581код для вставки
May 17, 19.38- s. A. STONEBACK 2,117,581 AIR CHANGE MEANS FOR WINDOW GLASS INSULATION SYSTEMS Filed March 20, 1936 m V . Patented May 17, 1938 2,117,581 I UNITED STATESgPATENT ' OFFICE antral AIR CHANGE MEANS FOR WINDOW GLASS INSULATION SYSTEMS Samuel A. Stoneback, Philadelphia, Pa. Application March 20, 1936, Serial No. “.77! In Canada January 24, 1936 SClailns. (Cl. ZIP-58.5) My invention relates to a new and useful air change means for a window glass insulation sys tem and is particularly adapted for use in con nection with my invention set forth in Patent No. 2,042,077 which was co-pending application, Se rial No. 741,891, filed August 29, 1934, andallowed October 31, 1935. _ . One of the objects of the present invention is to .provide a structure consisting of spaced par 0 allel panes of glass in doors, windows and the like to form a dead air space which will act as insulation against a temperature on the outside of a building different from the temperature on the inside of the building and having means 15 whereby the air within the space may be re moved and displaced by other air. Another object of this invention is to provide means whereby any humid air within the dead air space may be removed to eliminate the hu Fig. 2 is an enlarged vertical sectional view of the two sashes of the window. Fig.‘ 3 is a section on the line H of Fig. 4. Fig. 4 is an enlarged fragmentary face view of one sash like the illustration in Fig. l. ' Fig. 5 is a fragmentary sectional view, the same as shown in Fig. 2 illustratingv the use of a hand pump for changing the air. Fig. 6 is a longitudinal sectional view of one sash showing a modification of the invention, and 10 Fig. 7 is an enlarged fragmentary section sim ilar to the illustration in Fig. 6 to show certain details of construction. _ In carrying out my invention as herein em bodied ill represents a frame of door, window or 15 the like, which for purposes of illustration is shown as a sash of a window. This frame III has the usual or primary pane of glass I! mounted therein which must beair tight. midity and to replace such air with dehydrated An additional or secondary pane of glass I2 is ” air and thereby prevent the formation of mois placed directly against theface of the frame II n ture on the glass, generally known as sweating, so as to be disposed across the light opening and due to the differences in temperatures on oppo-‘ in spaced parallel relation to the primary pane site sides of the panes of glass. of glass ‘I I. Where the invention is'used in con Another object of the invention is to provide nection with double hung or sliding window ' openings leading from and to the dead air space sashes. said additional or secondary pane of glass ' whereby an air pumpmay be used to ,force air i2 is placed on the outside face of the upper through one of the openings and drive out the sash and on the inside face of the lower sash._ air within the space through the other opening. The additional or secondary pane of glass I2 Another object of the invention is to form is held in place by suitable molding II with a recesses in the sash and holes in the moulding plastic‘ compound H in grooves or recesses to aligning with the recesses whereby openings or provide tight joints. The construction thus far air passageways are produced which are closed except during the air changing operations. referred to is fully described in my co-pending application above mentioned. 1 A further object of my invention is to produce By this arrangement of the two panes of glass, the recesses or inner ends of the openings of a dead air space I5 is formed that e?lciently insu- 8‘ unique formation to assist in distributing the air lates one side of the frame from the other and prevents the passage of heat or cold, as the case within the dead air space. A still further object of my invention is to may be, from the outside to the inside of a build 4° provide a valve controlled opening leading to the ing. In the top and bottom rails of the frame II ‘o dead air space. With the above and other objects in view, this are formed recesses or notches‘ l6 _ under the invention consists of the details of construction .mouldings l3 and holes I‘! are made through said moulding in registration or alignment with and combination of elements as well as partic ‘5 ular arrangements of parts hereinafter set forth the recesses and beyond the edges of the ‘glass I! thus providing openings or air passageways and then speci?cally designated by the claims. from the outside of the frame to the dead air In order that those skilled in the art to which a this invention appertains may understand how to make and use the same, I will describe its construction in detail, referring by numerals to the accompanying drawing forming a part of this application, in which: . Fig. l is a view in elevation of a window em gg bodying my invention. ' space. Preferably these openings or air passage ways are diagonally opposite each other so that air forced into the'dead air space through'one 50 opening will ?ow over a larger area directly to ward the other opening than if the openings are in a perpendicular line. To assist in spreading the air stream, the re cesses or notches I. are formed so that their gg 2,117,581 walls diverge inwardly or from the points where _ the holes I‘! communicate with them and pref erably the inclination of one wall of each recess or notch is greater than'the other wall as indi 5 cated in Figs. 1 and 4. The holes I‘! have threaded plugs I8 screwed into them for closing the openings or air passage ways and upon their removal the‘nozzle of an air pump I9’can be temporarily mounted in one 10 of the openings and air forced into the dead- air space 15 which will drive the air in said space out through the other opening thereby replacing such air. If desirable a tube or elbow 20 can be ?tted 15 in each opening or air passageway and the outer end of such tube is normally closed by a threaded 1. A frame having a primary pane of glass mounted therein with air tight joints, a secondary pane of glass placed against one face of said frame so as to be in spaced parallel relation to the primary pane of glass to form a dead air space, said frame having recesses therein back of the secondary pane of glass and extending beyond the edges of said secondary pane of glass, means including moulding to hold the secondary pane of glass in place and form air tight joints, the 10 moulding having holes therethrough communi cating with the recesses and adapted to receive air evacuating means for replacing the air in the dead air space, and screw plugs removably mounted in the holes to normally close the air ll passageways. . 2. A frame having a primary pane of glass Upon removal of a plug the air pump 19 can be mounted therein with air tight joints, a secondary attached as previously described. For purposes pane of glass placed against one face of the frame 20 of illustration I have shown one of the tubes 20 to provide a dead air space, moulding to hold the with a spring actuated check valve 22 but it will secondary pane of glass in position with. air tight be obvious that both tubes in one assembly can joints, said frame having recesses in its top and bottom rails diagonally opposite each other back be used with or without valves. of the secondary pane of glass and communicat It has been discovered that under some condi I25 tions, as during damp or rainy weather, when an ing with holes through the moulding beyond the 25 installation of the insulation system is made, the edges of the secondary pane of glass, the walls of \dead air space contains humid air and due to‘ said recesses diverging inwardly and the walls toward the vertical center of the frame having changes of temperature the moisture will accu the greatest inclination, and closures removably mulate on the glass. While this is not especial 30 ly detrimental it is undesirable and annoying. mounted in the holes. 3. A frame having a primary pane of glass By removing the closure plugs and connecting an air pump or suction device to one of the air therein, a secondary pane of glass placed against passageways the air within the dead air space one face of said frame in spaced parallel rela can be removed and replaced by other or fresh tion to the primary pane to form a dead air space, 35 air which has vbeen dehydrated naturally or means to secure the secondary pane in place, a caused to flow through a suitable dehydrator, plastic composition for sealing the joints between such as a tube containing silica gel. When this the edges of said secondary pane'and the frame, has been done very little condensate can form a tube set into the frame at the upper part of the under the most adverse conditions and the chance dead air space and forming a communication be 40 tween the exterior and interior of said dead air 40 of frosting is reduced to a minimum. of course I do not wish to be limited to the space, and another tube set into the frame at exact details of construction herein shown and the lower part of the dead air space and also described, as‘these maybe varied within the scope forming a communication between the exterior of the appended claims without departing from and interior of said dead air space, said tubes permitting the removal of air from and the injec 45 the spirit of my invention. Having thus fully described my invention what tion of fresh dry air into said dead air space. SAMUEL A. STONEBACK. I claim as new and useful is: plug' 2| screwed into said outer end thereof.