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Патент USA US2604686

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July 29, 1952
2,604,677
B. E. HoRNoR, JR
DOORSILL SEAL
Filed June 50, 1950
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INVENTOR
lydß'ßrmaz; J1:
ATTORNEYS
lPatented July 29, 1952
2,604,677
UNITED STATES PATENT
‘ OFFICE
`2,604,677
nooRslLL sEAr.
Boyd E. Horner, Jr., Fort Lauderdale, AFla.
Application June 30,1950, Serial No. £171,322>
4 Claims. (Cl. 207-68)
This invention relates to door sill seals of «the
type which are carried by the door and auto.
fQr,
a door that @1058€ with the" door Sill Seal
trailing;
Figure 8 »is a vertical Section italien @199g Us?
line E-li of Figure 5,
_
Referring now _in detail to the several figures,
and ñ-rst to the group including Figures ì'_to4'_,
matically lift responsive to the initial opening
movement of the door, and automatically lower
at the iinal closing movement _of the door to `en
gage the door sill _or floor in _an air or moisture
tight manner, and to exclude dust, insects and
inclusive, the numeral l represents _a door, '_2 and
3 being the jambs. t is assumer'lÍ that vthe door
vermin.
In known devices of this charac-ter, the im
is .hinged to the amb a; and that ihe’rireè ledge' 4'
mediate sealing means is usually _añexiblestrip . of
the door closesagainst a rabbet 45 0n äh? fol??
extending across the .bottom ,of the door, lifted
by a spring which reacts against the seal at one
In general» aaClOÓl‘ _Sill Seal .i5 [email protected] in @[email protected]
end, and lowered by means located _at the op
with
the outsidedoors of a house. These 'may
posite end, which opposes the spring. Due to the
open either into the room-as in most residences,
length of the device, it is` thus _subjected lto a 15 or
open toward the street, as in most public build-'
twisting torque so that unless made sturdy, the
in_gs `to satisfy fire regulations. _In either ease,
edge of the sealing strip becomes longitudinally
with uniform pressure throughout, resulting in
the door sill seal is mounted on _the outsideîoîf
the door, that is, the side exposed to theweather.
device -suñiciently inherently rigid to withstand
this_torque distortion increases the expensive
oase ci’ a door which opens to .the street, the
distorted and will not lie against the threshold
Consequently, in the closing movement of are#
an imperfect seal. The making of the known 20 sidence door the door _sill seal _lea-ds, while _in the
ness `offthe device.
The principal object of the ¿present invention
is to provide a door sillseal of the type described,
in which the torque between the spring and the
lowering means which acts. against the spring are
at the same end of the device, so that the torque
effect upon .the seal is confined within a short
25
door _sill seal trails. TheV group o_fFigures ï to_„4
represent the door _of _a residence in'which', in
closing, .the `_door sill seal leads. _The doorfsìllseal
is equally Vadapted to ¿inside doors for`„teinpera-.turey controlled -rooms or where dust exclusion
is of 'prime importance, etc. The door sill [seal
comprises a casing 6 which extends substan
tiany >the full width of the space _betweejn‘the
portion of its length, avoiding thedistortion above 30 door jambs, .being just sumciently shorter `than
referred to.
said _space to clear the jambs in the arcuate move,Other objects of the invention will appear as
ment
of the door. VThe casing comprises a. hol.
the following description of a preferred and prac
low cylindrical portion 'l .and l_a >ilat »f_lálngeß
tical embodiment thereof proceeds.
integral therewith yand >tangent >`thereto, lh ving
In the drawing which vaccompanies and forms 3.5 facilities such as the screws _9 for attaching the
a part of the following speciñcation, and through
door sill seal to the lower part of the doorfï‘ï‘lie
out the iigures of which the same reference
cylindrical portion serves as a'seat vor bearing
characters have been used to denote identical
for a tube I0, which viits rotatably jwithin said
parts:
casing. The cylindrical portion 1 is provided `.with
Figure l is _a front view in elevation showing
Ia slot Il, extending t'l'iereacross,` the width fam?
the lower part of a door and its jambs with the 40 plitude _of said slot beingabout 90`f‘` off the' inner
door sill seal of the present invention applied
circumference of _said cylindrical member, _said
thereto, an intermediate portion of the device
being _broken away;
'
`
Slot beine Qn the forward :Side 1Q_fÍSai?l :mémbèl’rß
beginning _substantially ¿_at' its _horizontal îaigial
Figure 2` is a horizontal section taken 4along 45
plane and extending. _d'ownwardlyQ`-W » Í f` "
Figure 3~ is a verticalsection taken along the
tending _its full llength _and-in registry with Q_the
the line 2--2 of Figure 1_;
'
line. _3_3 of Figure l ;
'The tube'lñ has a relatively narrow slot ¿ließt-
slot Il throughout `the range of arcuate move,
Figure 4 is 4a vertical section> on an enlarged
ment of said` tube,` as Will be explained» _ '
Í
scale taken along the line 4-4 of Figure 1_;
50
Referring
@Figure
¿itis
ASeen
that
the
endrof
Figure 4a is a section taken along the line
the tube I0 which is adiacentthe hinge ,end__of
dar-4a of Figure 1;
_ Figure 5 -is a section similar to Figure 3, but
the doorfthat is, adjacent the `_lamb _3, _iscloseçl
by means _of _a cap 13, which .may _;befli-xedin
_by yany suitable means. -It .isshown have
springoperated member, the arrangement being 5s place
ing a ,lug ‘29 `~at _one _point which keys 'into' _acor
showing the actuating pin above the axis of the
2,604,677
'responding slot 30 formed in the tube I0. The
opposite end of the tube I0 is closed by a cap I4,
secured in the same manner as the cap I3, and
the adjacent end of the casing is closed by a
cap I5. The cap I5 has a peripheral lug 3| which
projects into the slot II ñtting the width thereof.
A flexible strip I6 of any suitable material, such
4
wise direction and brings the sealing strip I1
into close engagement with the floor.
In this
case the stop plate 2| is set out from the door
engaging surface of the jamb on a block 21, in
stead of being at the back of a recess as in Fig- „
ures 1 to 4.
Due to the fact that the operating pin 20 is at
the same end of the tube I0 as the spring 25, only
a very small portion of the length of said tube
serted in the slot I2. Said inserted edge extends
will
be subjected to tortional stress, and con
10
the full length of the tube IU, the caps I3 and I4
sequently,
the tube I0 may be counted upon to
being slotted as at 28 to receive said edge, but
maintain its untwisted cylindrical condition,
the strip I6 extends laterally beyond said edge as
keeping the lower edge of the sealing strip I6
at I8 and I9, so as to be coextensive with the
rectilinear and causing it to press uniformly
overall length of the casing 6. The width of the
against the floor or threshold from end to end.
15
iiexible strip I6 is such that when it is in seal
It will be understood that the pin 20 rotates
ing relation to the floor or threshold, it is bent
the tube I0 in a contra direction with respect to
out or its normal position of repose and assumes
the bias of the spring 25, so that it is not the
a deformed shape, as shown particularly in Fig
as rubber, neoprene, etc., has one edge I1 in
ure 4, pressing the floor or threshold with a uni
form pressure from end to end.
A pin 20 is ñxed within the tube IU adjacent
one end thereof, extending outwardly beyond
the casing 6 through the cap I4 near its periphery.
This pin is designed to engage the stop plate 2|,
in the ñnal closing movement of the door, which
is attached to the back Wall of a recess 22 formed
spring which presses the flexible sealing strip
20 against the ñoor or threshold, but the inherent
resiliency in the sealing strip, urged by the pres
sure of the pin 2B.
While I have in the above description dis
closed what I believe to be a preferred and prac
tical embodiment of the invention, it will be un
derstood by those skilled in the art that the spe
ciñc details of construction and arrangement of
in the rabbet of the jamb. The pin 2i! is cut with
parts, as described, are by way of illustration and
the rabbets as shown in Figure 6, forming a
not to be construed as limiting the spirit or scope
shoulder 33 that lies adjacent the inner side of
the invention.
the cap I4, a shoulder 34 which bears against the 30 of What
I claim as my invention is:
end Wall of the tube I0, and a shoulder 35 which
1. Door sill seal comprising a casing having
lies adjacent the outer side of the cap I5. The
means for securing it widthwise against a door,
pin so constructed provides stops t0 prevent end
said casing having a cylindrical bore and a longi
movements of the parts which lie contiguous to
tudinal slot opening into said bore, a tube ro
its several shoulders, and the outer end of said
tatably ñtting within said bore having a longi
pin is at the maximum radial distance from the
tudinal flexible sealing strip secured thereto eX
axis of the tube ID. giving it optimum mechani
tending through the slot in said casing, a pin
cal advantage in opposing the bias of the spring
projecting longitudinally from one end of said
5.
»i0
tube. rotatable therewith and extending beyond
A post 23 is ñxed to the center of the cap I5
the adjacent end of said casing, a closure for
and projects inward axially of the tube I0, pass
said end of the tube having a central aperture
ing freely through a central aperture in the cap
and a slot at its periphery forming a passage for
I4. A spring support 24 extends diametrically
said pin, a closure for the adjacent end of said
across the tube I0, having its ends set in aper
tures in said tube. A spiral spring 25 has its 45 casing nonrotatably secured to said casing by a.
lug on one interdigitating with a slot in the other,
ends respectively anchored to the post 23 and
said last named closure having an arcuate slot
spring support 24, the direction of twist of said
through which said pin extends and in which it
spring being such as to cause it to react between
plays, a post iixed to said casing closure at the
the fixed post andthe movable spring support
to rotate the tube Ill in such a direction as to 50 center extending through the aperture in said
tube closure and axially within said tube, a spring
tilt the flexible sealing strip I6 in an upward
direction, its uppermost position being indicated
in broken lines in Figures 3, 4 and 5.
The cap I5 has the arcuate slot 26 through
support fixed within said tube at a distance from
said closures, a helical spring about said post an
chored at its respective ends to said post and
which the pin 20 passes, providing play for the 55 said spring support under axial tension, normally
biased to react against said post to rotate said
movement ofsaid pin as the tube I0 rotates with
tube in a direction to tilt said sealing strip up
in the casing.
ward, said pin and slot being so angularly dis
Figure 3 shows the pin and slot located in the
placed with respect to the circumference of said
lower arc of the path of oscillation of the tube
I0 and adapted to be moved from a low to a high 60 tube as to rotate the latter in a direction contra
to the bias of said spring when said pin is moved
position in said arc when the door is moved in
through said slot in contacting the door jamb
the direction of the arrow t0 close it. Obviously,
as the door is closed, for tilting the fiexible strip
as the pin 20 moves up, the tube I0 rotates in a
clockwise direction, lowering the sealing stripY
downward.
from the broken line to full line position shown 65 2. Door sill seal as claimed in claim 1, the jamb
contacting portion of said pin being offset in a
inFigure 3. '
radial direction away from the axis of rotation
AYrieure 5 shows the pm zo andv Slot ze in the
>upper’arc of the end of the casing B. This fig
of said tube, thereby increasing the mechanical
advantage of said pin in opposing the bias of said
ure depicts- a door which opens outwardly to
the street. The arrow indicates its closing di 70 spring.
3. Door sill seal comprising a casing having
rection. It is obvious that, starting with the pin
means for securing it widthwise against a door,
¿Il> in the lower end` of the slot, it will collide
said casing having a cylindrical bore and a longi
with the stop plate 2| as the door closes, and
tudinal slot opening into said bore, a tube ro
be raised upwardly as it traverses the arcuate
slot. This rotates the tube I0 in a counterclock- 75 tatably fitting within said bore having a longi
5
2,604,677
tudinal ilexible sealing strip secured thereto ex
tending through the slot in said casing, a pin
4. Door sill seal as claimed in claim 3, the
jamb contacting portion of said pin being off
projecting longitudinally from one end of said
tube rotatable therewith and extending beyond
set in a radial direction away from the axis of
the adjacent end of said casing, a closure for said
adjacent end of said casing nonrotatably secured
Ul
to said casing by a lug on one engaging with a
Íslot inthe other, said closure having a fixed post
at its center coaxial with said tube and extending
thereinto, a support for a spring fixed within said
tube longitudinally spaced from the inner end of
said post, a helical spring within said tube an
chored at its respective ends to said post and sup
port under axial tension, normally biased to re
act against said post to rotate said tube in a di
rection to tilt said sealing strip upward, said clo
rotation of said tube, thereby increasing the
mechanical advantage of said pin in opposing the
bias of said spring.
BOYD E. HORNOR, J R.
REFERENCES CITED
The following references are of record in the
ñle of this patent:
Number
578,616
1,145,196
sure having an arcuate slot concentric to said
post through which said pin extends and within
which it plays, said slot being so positioned as t0
present said pin in position to rotate said tube
contra to the bias of said spring when said pin 20
contacts the door jamb as the door is closed, for
tilting the flexible strip downward.
Number
756,756
UNITED STATES PATENTS
Name
Date
White __________ __ Mar. 9, 1897
Higgin ____________ __ July 6, 1915
FOREIGN PATENTS
Country
Date
France ________ __ Sept. 25, 1933
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