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Патент USA US2403826

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July 9, 1946.
- Filed Feb.’ 24, 1945
5 Sheets-Sheet 1
19 E gr
July 9, 1946'.
Filed Feb. 24', 1945
Will 0/5560” FJIJEFP
‘(Will 0/‘ mar R4555?‘
2,403,826 '
:5 Sheets-Sheet 2
, I By
Patented July 9, 1946 - 2
William J . Pinard, Manchester, N. H.
p _ Application February‘24,‘194'5, Serial No. 579,552
2 Claims.
(01. 292_s40) ’
This invention relates to so-called knob-con
V door,rtandithe improved keeper unit on the door
trolled and actuated night latches such'as are
Figure 2' is a view of Figure 1, looking down
wardly on ‘top of thetwo units, that is,‘ the latch
; employed on domestic doors, and the like, for
use- in conjunction with regular key-controlled
unit and the keeper unit, parts being in section.
locks,_ and the purpose of the invention is to
provide an improved keeper unit which has cer
tain structural advantages, but which is usable
in connection with virtually any and all knob
equipped projectible and retractible latch units.
Figure 3 is a view like Figure 1,'but Showing
the‘ door frame of such form that the'door re
cedes- or sinks into same, the keeper unit being
sunk in said door frame with one wall exposed.
_ In the drawings I have shown a more or less 10
Figure 4 is a view like Figure 2, but taken'on
conventional latch unit merely to bring out its‘
thebasis ‘of Figure 3 looking down on top of
association and coaction with the keeper unit.
vthe parts.
" ~ Figure 5 is' a section on line 5—5
of Figure 4.
Figure} 6 is a detail plan view of the keeper
However, and'as above implied, such structural
novelty as exists hereinis devoted to the keeper‘
unit by itself.
15 unit by itself.
_ _
Briefly, the improved keeper unitis charac
Figure '7 is‘ any elevational view observing one 7
terized' by a hollow box-like casing for reception
side, which may be called the back plate, with
. of the projectibleand retractible latch bolt',;said
the extension and reinforcing webs.
casinghaving a back plate, end platesand a
Figure 8 is a View like Figure 7 observing the
front plate, the latter serving as theabutment 20 opposite or What might be’ called the front side
‘ or face of said keeper unit.
and retainer for the latch bolt, there being spe
cial reinforcing ?anges opposed to the back plate
Figures) is an elevational view in which the
and connected with the end plates, and said back
observer sees [the back, front and marginal end
plate also having an adapter, extension with
reinforcing webs.
walls or plates, thus bringing out the construc
tion of the unit from all sides, taken in con
junction With Figures 6 to 8, inclusive.
The object of theinvention is to provide a
Referring now to the drawings by distinguish
keeper unit of the aforementioned type which
can be successfully applied to the door jamb
' ing reference characters and with reference to
or frame so that it will project therefrom later
Figures 1 to 5, inclusive, it will be seen that
the door is denoted at A, the door jamb or frame
at B, the knob-equipped latch unit at C, and the
ally to coact with the latch‘unit,‘the construc
tion and method of attachment of said keeper
unit being such as to provide for rigidity and. to
improved keeper unit at It]; The parts A, B and
promote ease of manufacture, simplicity in de
C, are obviously old. Referring further to the
sign and mode of attachment, thelatter step
latch, unit, this comprises the usual rectangular
casing D with a marginal attaching ?ange E,
attainable without likelihood of breakage of the
keeper unit or damage to the door jamb or frame
a night latch or safety device F and usual knurled
operating knob G.‘ The beveled nose latch bolt
on which it is mounted.
Not only is the keeper unit applicable to the
is indicated at H, this being on the usual spring
actuated plunger J. The plunger is operated
[by the knob through suitable mechanism (not
door frame to project outwardly therefrom, but
is susceptible of being submerged and sunk in
a mortise formed in the door jamb, this to adapt
shown). Thus, it, will be seen that the latch
unit 0 is old and no part of this invention.
The invention has‘to do with the keeper unit
it for use in structures wherein the door itself
recedes into the frame and the latch unit is
therefore substantially ?ush with the coacting
surface of the door frame.
ID._ This is brought out best, it is believed, in
' Figures 6 to 9, inclusive.
Other features and advantages will become
more readily apparent fromv the following “de
scription' and the accompanying illustrative
what we will call a back wall I2 having screw
In the drawings, wherein like reference char 50
acters are employed to designate like parts
throughout the several views:
Figure 1 is a fragmentary elevational view
showing a portionof a‘ door, a‘ door frame, a
Here, we observe that
the main shell II is in the form of a rectangular
hollow construction and is characterized by
holes l3, this-being provided with an integral
extension or attaching ?ange I 4 inrturn pro
vided'with triangular connective webs and. rein
forcing elements IS.
The ?ange is also pro
vided with screw holes l6 which serve in a man
. ner to be hereinafter described.
The end walls
knob-equipped latch unit to the right on the 55 are denoted at IT, these connecting with the
of the alleged features of merit and novelty suf
?cient to clarify the construction of the invention
latch bolt abutment wall 18. The front wall is
actually made up of a pair of cut-away exten
sions or ?anges l9 formed integral with the
end walls [1 and said abutment wall IS.
as hereinafter claimed.
Minor changes in shape, size, materials and
rearrangement of parts may be resorted to in
actual practice so long as no departure is made
The keeper unit is applied either as shown in '
Figures 1 and 2, or in Figures 3 to 5. In Figures
1 and 2, the door A closes flush with the door
jamb B‘ and therefore the parts C and H] are in
from the invention as claimed.
I claim:
1. A keeper unit of the class described com
somewhat customary positions for coaction with
each other. More speci?cally, the keeper unit 10 prising a substantially rectangular hollow shell
embodying a rectangular back wall, laterally dis
i0 is then fastened to the door frame by way of
posed end walls, an outer latch bolt abutment
the special adapter ?ange Ill. Thus, screws 25
wall adjoining the back and end walls, and a pair
are passed through the screw holes I6 for fas
of ?anges in alignment with each other and
tening the keeper unit in place. It is so posi
tioned that the ?anges 19 are on opposite sides 15 connected with the end and outer abutment
walls, said ?anges being spaced apart and op
of the projected latch bolt H, the latter being
posed in parallelism to said back wall, and said
adapted to abut the abutment plate 18 between
back wall being provided with a right angular
said ?anges I8. If desired, this plate Ii! can be
extension formed integral therewith, the exten
thickened or reinforced (not shown) at this
point for strength, When the door closes below 20 sion constituting an attaching ?ange, said back
wall and ?ange being provided“ with screw-ac
the surface of the door jamb, as shown in Figures
commodation holes.’
3 and 4, the door comes to rest against the wall
2. A keeper unit of the class described com
K of the rabbet, the'remaining edge of the door
prising a hollow shell embodying a ?at back wall,
opposing the right angularly disposed wall L of
the same rabbet. This wall L is therefore mor
tised in order to accommodate the then substan
tially embedded keeper unit. It is necessary to
form a cavity to accommodate the rectangular
shell of the keeper unit and also to provide
counter grooves into which the ?ange l4 and re
inforcing webs l5 slip in place. This is brought
out in Figure 4. At this time, instead of the
?ange [4 serving to accommodate the screws, the
wall, that is, the back wall l2, serves to accom
modate the screws 2|, thus anchoring the unit
securely in place.
integral right angularly disposed end walls, and
outer latch accommodation and abutment wall
at right angles to and adjoining said back and
end walls, a pair of ?anges in alignment and in
the same plane with each other and connected
with said end and outer abutment walls, said
back wall being provided with an integral right
angular extension, said extension constituting an
attaching ?ange, said ?ange being connected to
the inner end portion of, said back wall, said‘back
wall and said ?ange both being provided with
screw accommodation holes, ‘and substantially
triangular reinforcing webs connected with and
A careful consideration of the foregoing de
located between the end portions of said ?ange
scription in conjunction with the invention as
and back wall.
illustrated in the drawings will enable the reader
to obtain a clear understanding and impression 40
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