Патент USA US3070095код для вставки
Dec. 25, 1962 H. E. MILLS 3,070,085 OVEN DOOR WINDOW UNIT Filed Aug. 8, 1960 \ ( A? I ., | M R, \\ 1|‘ \\\\\\\ \ .‘,//6 \ /<5’ : i i i L20 HI ‘I 46 : ‘ t '/~2z \\ . 1 f 6 T”; _ _ \ HI "'4 3”} W4 3 2T4‘ f. It. 24% (40 ‘\wl} Ei L I I I I a E5 J"‘_/0 r22 /45 44 44 /24 32 (3'4 a 42 2a 3 34 50 < (/4 EE- 4 - My? INVEN TOR. erhs’rz Z ?fz'ZZs. J "WMWIW 4770270575. United States Patent 0 1 _ 3,070,085 OVEN DOOR WINDOW UNIT Herbert E. Mills, Detroit, Mich., assignor to Mills Prod ucts, Iuc., Walled Lake, Mich., a corporation of Mich igan Filed Aug. 8, 1960, Ser. No. 48,023 3 Claims. (Cl. 126—200) 3,070,085 Patented Dec. 25, 1962 2 members 30 which are secured around the periphery of the clamping member 22 such as by spot welding or in any other suitable manner. The back door panel 14 is provided with apertures 32 each of which is aligned with one of the spacing members 30. The spacing members 30 are provided with grooved central portions 34. Screws 36 are inserted through the apertures 32 in the door panel 14 and extend freely through the grooved portions This invention relates to window units for oven doors and has particular reference to a new and improved 10 34 of the spacing members 30 and into threaded engage ment with a continuous trim strip 40. The trim strip oven door and window construction which simpli?es as 40 is provided with an outer leg 42 which is adapted to sembly of the oven door and repair or replacement of the be seated on the outer surface of the front door panel Window unit used in the oven door. 12 around the opening 26 therein and an inner leg 44 According to the present invention a window unit of which is adapted to cover the gap between the edge of the kind commonly used in oven doors is secured to the 15 the opening 26 and the window unit 16 and to engage front and back panels of the door in a novel manner the outer glass panel 18. The trim strip 40 is pro so that the window unit can be assembled after assem vided with bosses 46 which are drilled and tapped to bly of the oven door and so that the window unit may be de?ne threaded sockets receiving the screws 36. replaced or repaired without the necessity of disassem The window unit 16 may be mounted in the door 10 bling the oven door. by inserting the window unit through the opening 26 in A principal object of the invention is to provide a the door panel 12. The ?ange 24 on the back panel 14 new and improved oven door having a window unit is disposed inside of and covers the ?ange 48 on the therein. sealing and clamping member 22. The inner ends of the Another object of the invention is to provide a new and improved means for mounting a window unit within 25 spacers 30 engage the inside surface of the back door panel 14. The screws 36 are then inserted through the an oven door. apertures 32. The trim strip 40 is then held in place and Other and further objects of the invention will be ap the screws 36 threaded into the threaded sockets in the parent from the following description and claims and bosses 46 on the trim strip 40 to draw the trim strip may be understood by reference to the accompanying against the window unit and the front door panel to drawing, which by way of illustration shows a preferred complete the assembly. Preferably, the inner ends of embodiment of the invention and what I now consider the bosses 46 engage one of the parallel sides of the to be the best mode of applying the principles thereof. clamping and sealing member 22 when the screws 36 are Other embodiments of the invention may be used with tightened, thereby to clamp the window unit ?rmly out departing from the scope of the present invention as against the back door panel 14. Preferably, the ?ange set forth in the appended claims. 35 24 on the back panel 14 and the leg 44 of the trim‘ strip In the drawings: 40 do not actually engage the glass panels 18 but, in any FIG. 1 is a plan view of an oven door and window event, the clamping pressure is not exerted directly on assembly constructed in accordance with the principles the glass panels but rather against the member 22 and of this invention; the back door panel 14. 40 FIG. 2 is a fragmentary sectional view taken on line It will be seen that with the construction described 2—~2 of FIG. 1; the window unit 16 may be replaced or removed for FIG. 3 is a sectional view taken on line 3-—~3 of FIG. repair merely by removing the trim strip 40 and with 1; and drawing the window unit from the door without the FIG. 4 is an exploded view of the door and window unit. 45 necessity of any disassembly of the door itself. While I have illustrated and described a preferred em The invention is illustrated in connection with an bodiment of my invention, it is understood that this is oven door, although it will be apparent that the win capable of modification, and I therefore do not wish to dow unit and the mountnig arrangement therefor may be be limited to the precise details set forth but desire to used in other installations. The door 10 consists of avail myself of such changes and alterations as fall with 50 front and back door panels 12 and 14 having a window in the purview of the following claims. unit 16 therein. The window unit 16 comprises spaced I claim: glass panels 18 having a continuous spacer 20 therebe 1. In an oven door having front and back panels pro tween and a clamping and sealing member 22 surround vided with aligned window openings therein, a window ing the peripheral edges of the glass panels 18 and clamp unit positioned between said panels and within said open ing the same against the spacer 20. The window unit 55 ings, the opening in one of said door panels being larger may be similar to that shown in my copending applica~ than said window unit whereby the latter may be insert tion Serial No. 786,139, ?led January 12, 1959, for Stove ed and removed through such opening, a continuous trim Door Window Unit, now Patent No. 3,021,832, issued strip covering the gap between the edge of the opening February 20, 1962, although the mounting arrangement in said one door panel and said window unit, a series 60 to be described might be used with other types of win of spacing members secured on said window unit and en dow units. gaging the inner surface of the other of said door panels, The back door panel 14 is provided with an inwardly and screws extending through said other door panel into extending continuous ?ange 24 de?ning a window open threaded engagement with said trim strip for clamping ing in the panel 14. The front door panel 12 is pro vided with an opening 26 which is slightly larger than 65 the latter against said one door panel and said spacing members thereby to clamp said window unit against said the opening in the back panel 14 so that the window other door panel, said screws cooperating with said spac unit 16 may be inserted or removed through the open ing members to locate said window unit relative to said ing 26 in the front panel 12 after the door is complete panels and securing said panels together. ly assembled. The door 10 is otherwise of conventional 70 2. In an oven door having front and back door panels, construction. said back door panel having an opening therein and an The window unit is provided with a series of spacing inwardly extending ?ange around said opening, said front 3,070,085 3 door panel having an opening therein aligned with and 4 3. In an oven door having front and back door panels provided with aligned window openings therein, a win of larger size than said opening in said back panel, a dow unit positioned between said panels and within said window unit between said panels and comprising spaced openings and engaging the inner surface of said back glass panels having a continuous spacer therebetween and door panel around the opening therein, the opening in a clamping frame surrounding the peripheral edges of said said front panel being larger than said window unit where glass panels and clamping the same against said spacer, by the latter may be inserted and removed through such said ?ange on said back door panel engaging said clamp opening, a continuous trim strip covering the gap between ing frame for locating said window unit within said open said window unit and the edge of the opening in said ings, said opening in said front door panel being larger than said window unit whereby the latter may be in 10 front door panel, said trim strip engaging said window unit, and screws extending through said back panel into serted through such opening, a continuous trim strip cov threaded engagement with said trim strip for clamping ering the gap between the edge of the opening in said ’ said trim strip against said front door panel and said front door panel and said window unit, a series of spac window unit thereby to secure said window unit against ing members secured around the periphery of said clamp back door panel, said screws forming the sole fasten ing frame and engaging the inner surface of said back 15 said ing means for securing said panels together. door panel, and screws extending through said back door References Cited in the ?le of this patent panel and said spacing members into threaded engage ment with said trim' strip for clamping the latter against UNITED STATES PATENTS said front door panel and said spacing members thereby 20 to clamp said window unit to said door, said screws co 1,659,430 Himmel et a1 __________ __ Feb. 14, 1928 operating with said spacing members to locate said win dow unit relative to said panels and securing said panels 2,319,004 2,724,873 Lotter _____ _________ __ May 11, 1943 Cameron ; ___________ .. Nov. 29, 1955 2,733,706 Feder _______________ __ Feb. 7, 1956 together.