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Патент USA US3070095

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Dec. 25, 1962
H. E. MILLS
3,070,085
OVEN DOOR WINDOW UNIT
Filed Aug. 8, 1960
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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.
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