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Патент USA US2115970

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Patented May 3, 1938
2,115,970
'UNITED STATES PATENT ÜFFllCrE
2,115,970
WRITING PEN
George S. Walter, Chicago, lll.
Application August 10, 1936, Serial No. 95,950
15 Claims.
This invention relates to pens and particularly
to a type ‘of pen, in the use of which, considerable
pressure is frequently exerted on the writing end
thereof, as, for example, in the use of stylographic
5` pens of the 'type shown in Patents Nos.»2,033,164
and 2,033,794 issuedto me March 10, `1936.
One object’of ‘the present invention is to pro
vide a self-sealing fountain pen construction
wherein ’no protecting cap or cover adjacent the
10 \ writing point of the pen is required.
Another object of the invention is to provide a
novel rconstruction and arrangement in ypens of
the character described wherein the pen point
member is longitudinally movable in the body of
" the pen and nozzle portion thereof, and wherein
scale;
Fig. 3 is a further enlargedtransverse sectional
plan View taken substantially as indicated by the
line 3_3 of Fig. 2;
Fig. 4 is also a further enlarged fragmentary
Sectio-nal elevational view- of the structure adja
cent the lower end portion of Fig. l, as indicated
by the line d-ê thereof, but showing the parts in 10
changed position;
Fig.5 is a transverse sectional plan view taken
substantially as indicated by the line ‘5--5 of
Fie. 4;
Fig. 6 is a fragmentary sectional plan View of a 15
portion of the structure illustrated in Fig. 2 and
controlled to provide ink for writing purposes and
to positively seal the discharge opening when the
taken substantially as indicated by the line 6-6
thereof; and
Fig. '7 is a fragmentary sectional Velevational
view illustrating a slightly modified arran-gement
20
of the structure illustrated in Fig. 6.
The illustrative embodiment of the invention
Another object of the invention -is to `provide a
novel manually controlled valve arrangement for
preventing accidental or unintentional `discharge
of ink from-the pen, and to provide novel means
for maintaining the valve normally in closed con
comprises a body portion, indicated as a whole
by the numeral II, and shown in the present in
dition when the pen is not in use.
Another object of the invention is to provide a
stance, as comprising a hollow tubular barrel I2 25
having a nozzle, indicated as a whole by the nu
pen point member of novel construction‘to facili
tate feeding of the ink to a stiff, non-spreading
meral I3, positioned in one end thereof, the said
nozzle being shown, in the present instance, as
comprising a tapered portion Iâ having a tubu
writing portion capable `of receiving pressures
30 suitable for producing carbon copies.
Another object of the invention is to provide a
pen of the character described with a novel self
contained mechanical filler arrangement, or, in
other words, a pen of the stylographic type which
35 is ‘capable of being filled ‘without-resorting to the
lar shell `or sleeve i5 positioned therein and Yex
tending beyond the outer end thereof, the said
nozzle i3, and, if desired, the barrel i2, providing
30
a container or reservoir I5 for maintaining a
supply of ink within the device for writing pur
poses.
35
fountain pen 'having a novel ink channel con
Slidably mounted in the barrel I2 of the body
portion il, preferably adjacent one end thereof,
is an elongated block Il, and mounted in the
struction to facilitate the flow of ink there
block, preferably adjacent the central portion
through.
thereof, and in a manner to move therewith, is a 40
pen point member or core i8 shown, inthe pres
ent instance, as of tubular form having an elon
old rmethod of using a dropper or the like.
Another object of `the invention is `to provide a
40
portion of Fig. 2 being broken away to permit of
showing the structure on a considerably enlarged
the .discharge opening for the ink is manually
pen is not in use.
20
(Cl. 1Z0-44)
A, further object of the invention is to provide
novel means to facilitate cleaning of the pen
when such cleaning is required.
A still further object of the invention is to im
prove'devices of the character described in sun
dry details hereinafter referred to and particu
larly pointed out in the appended claims.
One embodiment of the present invention is
shown for illustrative »purposes in the accompa
50 nying drawing in which:
Fig. 1 is an elevational view of a pen combining
features of the present invention;
Fig. 2 is an enlarged longitudinal sectional ele
vational View taken substantially as indicated by
“ the 1ine.2-2 ofFig. 1,‘the central or intermediate
gated opening I9 extending longitudinally there
through, the pen point member or core I8 extend
ing through the nozzle I3 and sleeve portion I5 45
thereof in spaced relation ‘thereto in a manner to
provide an ink channel ZI communicating with
the reservoir 16.
As Villustrated in Fig. 2, the core I8 extends be
yond the outer end of the sleeve portion I5 `of the 50
nozzle I3 and is flared outwardly, as indicated at
22, in a manner to provide a combined laterally
extending writing portion and also a valve head
23 adapted to cooperate with an inclined valve
seat 24 formed on the sleeve portion I5 of the 55
2
2,115,970
nozzle I3 adjacent the outer end thereof and ad
jacent the discharge end of the ink channel 2|
for closing and positively sealing the ink channel
against the discharge of ink therefrom when the
pen is not in use.
By such an arrangement, it will be apparent
that when the pen point member or core I8 is
projected in a manner to extend beyond the end
of the sleeve I5, as shown in Fig. l, the ink from
10 the reservoir I6 and channel 2| may flow along
the surface of the core to the writing portion 22,
and to facilitate the flow of ink through the
channel 2|, one of the walls of the channel
formed by the inner surface of the sleeve portion
I5 of the nozzle I3 and the outer surface of the
core I8, and shown, in the present instance, as
the outer surface of the core I8, is provided with
a plurality of annularly spaced grooves 25 (Figs.
in a downward direction to project the core I8
beyond the end of the nozzle, the member 34 is
further compressed, but not sufficiently to over
come the friction between the various relatively
movable parts to cause the core I8 to be retracted
without manually rotating the cam ring 3|, and 10
to prevent possible distortion or buckling of the
walls of the member 34 as a result of such fur
ther compressíon, the member 34 is provided,
preferably on its inner surface, with a plurality
of elongated annularly spaced ribs or corruga 15
tions 31, as clearly shown in Fig. 2 and in the
to provide communication between the respective
fragmentary sectional view shown in Fig. 6.
In Fig. 7 is shown a modified construction of
the sealing and retaining member, indicated at
34a, wherein an annular rib 31a, of substantial
width is provided to prevent distortion or buckling
of the wall of the member 34a when compressed
longitudinally under the conditions above de
scribed.
For filling the reservoir I6, a filler member 25
grooves.
shown in the present instance, as a resilient bulb
2, 4 and 5) extending, preferably, throughout
20 the length of the ink channel 2 I, and to facilitate
the distribution of the ink around and adjacent
the writing end portion of the core I8, a plurality
of notches 26 (Fig. 4) are formed in the material
of the core between the grooves 25 in a manner
For projecting and retracting the core I8, with
reference to the nozzle I3, the block I1 is pro
vided with a plurality of oppositely disposed pins
30 21 extending outwardly therefrom through a plu
rality of oppositely disposed elongated slots 28
formed in the tubular barrel I2 and extending
longitudinally thereof, the outer end portions of
the pins 21 being engaged, respectively, by a plu
35
words, when the block I1 is moved to its highest
position, is under at least a slight compression
for normally urging the valve head 23 against
the valve seat 24, and when the block I1 is moved
rality of oppositely disposed spirally arranged
inclined cam grooves 29 formed in a manually
operated member or cam ring 3|, rotatably
mounted on the tubular barrel I 2 and secured, in
the present instance, against longitudinal move
ment with respect thereto by means of an in
turned edge portion 32 (Fig. 2) formed on one
end of the ring 3| and adapted to engage an an
nular groove 33 formed in the tubular barrel I2.
It will be observed from the foregoing descrip
tion that when the cam ring 3| is rotated in one
direction, the pins 21 in the cam grooves 29 will
cause the block I1 to be moved downwardly to
project the core I8 beyond the end of the sleeve
I5 to a position for use in Writing as shown in
Fig. 2, and that when the ring 3| is rotated in
the opposite direction, the action of the cam
grooves 29 on the pins 21 will cause the core I8
to be retracted and the valve head 23 to be moved
into engagement with the seat 24 on the sleeve
I5 in a manner to close and positively seal the
ink channel 2| against the discharge of ink there
from.
For providing a seal between the tubular barrel
I2 and lower end portion of the block I1, a re
60 silient retaining and sealing member 34 is pro
vided, the lower end portion of which is adapted
to be secured rigidly within the tubular barrel I2
by suitable means shown, in the present instance,
as an annular rib 35 adapted to exert an eX
panding action or outward pressure adjacent the
lower end portion of the member 34 to urge said
lower end portion snugly against the inner sur
face or wall of the barrel I2, while the upper end
portion of the member 34' is adapted to snugly en
gage a neck portion 3B formed adjacent the lower
end of the block I1.
In order to normally retain the valve head 23
in engagement with the valve seat 24 to prevent
leakage of the ink from the channel 2|, the re
silient member 34, when elongated or, in other
33 (Fig. 2), formed, preferably, of rubber or
other suitable material, is mounted on the upper
end portion of the block I1 and shown, in the
present instance, as secured thereto by means 30
of a ring 39, screw-threaded onto a neck por
tion 4I adjacent the upper end of the block, the
interior of the bulb, communicating with the
elongated aperture or opening I9 of the core I8
in a manner to draw ink therethrough during the
filling operation. 'I‘he block I1 is provided with
elongated apertures 42 communicating with the
interior of the bulb 38 and with barrel I2, and
through the apertures 42 ink may be dispelled
from the bulb into the reservoir I6, the threaded 40
ring 39 being provided to facilitate the removal
of the bulb for cleaning purposes.
For protecting and concealing the bulb 38, a
cap 43 may be screw-threaded onto the upper
end portion of the barrel I2 as clearly shown in
Figs. 1 and 2.
It will be apparent from the foregoing descrip
tion that the present invention provides a novel
construction and arrangement in fountain pens
wherein the writing portion may be projected CAJI
from the body of the pen for writing purposes,
and may be retracted from writing position and
the ink channel sealed against accidental or unin
tentional discharge of ink therefrom when the
pen is not in use, so that the pen may be carried
in a pocket or purse without the necessity of a
cap or cover over the writing end portion as is
necessary in fountain pens of the character now
in use.
Obviously, the present invention is not limited
to the precise construction and arrangement
shown and described as the same may be various
ly modified.
Moreover, all the features of the in
vention need not be used conjointly as the same
may be used to advantage in variously different (i5
combinations and subcombinations.
What I claim as new and desire to secure by
Letters Patent is:
1. In a fountain pen having a body portion and
a hollow nozzle mounted rigidly thereon and pro
viding an ink reservoir, the combination of a
core movably mounted in said body portion and
positioned in the opening of said nozzle in spaced
relation thereto to provide an ink channel corn
municating with said reservoir, and means con
2,115,970
nected to said core and operatively related to
said body portion for moving the core longitudi
3 .
ment with said valve seat, and means operatively
related to the inner portion of said core and to
nally with respect to said body portion and
said body portion for normally urging said valve
nozzle.
2. In a fountain pen having a body portion
and a hollow nozzle mounted rigidly thereon and
providing an ink reservoir, the combination of a
head towards said seat.
'7. In a fountain pen having a body portion
and a hollow nozzle thereon providing an ink
reservoir, the combination of a supporting block
slidably mounted in the body portion, a core
mounted in said block and extending* through
said nozzle in spaced relation thereto to provide 10:
core movably mounted in said body portion and
positioned in said body portion and extending
10 through the opening of said nozzle in spaced
relation the-reto to provide an ink channel com
miuiicating with said reservoir, and means con
nected to said core and operatively related to
said body portion for moving the core longitudi
nally in opposite directions with respect to said
body portion and nozzle.
3.
and
and
of a
In a fountain pen having a body portion
a hollow nozzle mounted rigidly thereon
providing an ink reservoir, the combination
core movably mounted in said body portion
and positioned in said body portion and extend
ing through the opening of said nozzle in spaced
relation thereto to provide an ink channel com
municating with said reservoir, and means con
25 nected to said corey and operatively related to
said body portion for moving the core longitu
dinally in opposite directions with respect to
said body portion and nozzle, said core having
a laterally extending portion engageable with
:said nozzle for closing the discharge end of said
ink channel.
4. In a fountain pen having a body portion
and a hollow nozzle mounted rigidly thereon and
providing an ink reservoir, the combination of
35 ,a core movably mounted in said body portion and
positioned in said body portion and extending
through the opening of said nozzle in spaced
relation thereto to provide an ink channel com
municating with said reservoir, and means con
nected to said core and operatively related to
said body portion for moving the core longitudi
nally in opposite directions with respect to said
body portion and nozzle, said core having a lat
erally extending writing portion engageable with
the end portion of said nozzle for closing the dis
charge end of said ink channel.
5. In a fountain pen having a body portion
and a hollow nozzle thereon providing an ink
reservoir, the combination of a supporting block
>slidably mounted in said body portion, a core
connected to said block within said body portion
and extending through the opening of said nozzle
in spaced relation thereto to provide an ink chan
nel communicating with said reservoinsaid noz
zle having a valve seat formed thereon adjacent
its outer end portion, said core having a writing
portion providing a valve head adapted to coop
erate with sai-d seat, and resilient means con
an ink channel communicating with said reser
voir, a valve seat formed on said nozzle adjacent
the end thereof, a valve head adjacent the outer
end of said core engageable with said seat to
close said ink channel, and means operatively 15.
related to said body portion and block for mov
ing said valve head into and out of engagement
with said valve seat.
'
8. In a fountain pen having a body portion
and a hollow nozzle thereon providing an ink 20.
reservoir, the combination of a supporting block
slidably mounted in said body portion, a core
mounted in said block and extending through
said nozzle in spaced relation thereto and coop
erative with the inner wall of the nozzle to pro
vide an ink channel communicating with said
reservoir, a valve seat formed on said nozzle ad
jacent the discharge end of said channel, a valve
head adjacent the outer end of said core en
gageable with said seat to close said ink channel, 30;
and a manually operated cam ring rotatably
mounted on said body portion and operatively
related to said block for moving said valve head
into and out of engagement with said valve seat.
9. In a fountain pen having a body portion
and a hollow nozzle thereon providing an lnk
reservoir, the combination of a supporting block
slidably mounted in said body portion, a core
mounted in said block and extending through
said nozzle in spaced relation thereto and coop 40
erating with the inner wall of the nozzle to pro
vide an ink channelv communicating with said
reservoir, a valve seat formed on said nozzle ad
jacent the discharge end of said channel, a valve
head adjacent the outer end of said core engage 45,
able with said seat to close said ink channel, a
manually operated cam ring rotatably mounted
on said body portion and operatively related to
said block for moving said valve head into and
out of engagement with said valve seat, and re 50
silient means operatively related to said body
portion and core for normally urging said valve
head towards said seat.
1G. In a fountain pen having a body portion
and a hollow nozzle thereon providing an ink 55 '
reservoir, the combination of a supporting block
slidably mounted in said body portion, a core
mounted in said block and extending through
nected to said body portion and to said block for
60 providing a seal between the body portion and
the block adjacent one end of said reservoir.
6. In a fountain pen having a body portion
said nozzle in spaced relation thereto and co
operative with the inner wall of the nozzle to
provide an ink channel communicating with said
reservoir, a valve seat formed on said nozzle ad
and a hollow nozzle thereon providing an ink
reservoir, the combination of a core positioned
jacent the discharge end of said channel, a com
bined writing portion and valve head adjacent
in said body portion and extending through the
opening of said nozzle in` spaced relation thereto
to provide an ink channel communicating with
said reservoir, said nozzle having a valve seat
formed thereon adjacent its outer end portion,
70 said core having a laterally extending writing
portion adjacent its outer end providing a valve
head adapted to cooperate~ with said seat to close
the outer end of said core engageable with said
seat to close said ink channel, a manually oper
ated cam ring rotatably mounted on said body
said ink channel, means connected to said core
and operatively related to said body portion for
75 moving said valve head into and out of engage
portion and operatively related to said block
for moving said valve head into and out of en
gagement with said valve- seat, and resilient 70
means operatively related to said body portion
and block and normally under compression for
normally urging said valve head towards said
seat.
1l. In a fountain pen having a body portion
4
2,115,970
and a hollow nozzle thereon providing an ink
reservoir, the combination of a supporting block
tending through said nozzle in spaced relation
thereto and cooperating with the inner wall of
rotatably mounted on said body portion and se
cured against longitudinal movement with re
spect thereto, said ring having a cam groove
formed therein adapted to receive the end por
tion of said projection for sliding said block lon
gitudinally of said body portion and moving said
valve head into and out of engagement with said
the nozzle to provide an ink channel commu
valve seat.
slidably mounted in said body portion, said block
having a reduced neck portion adjacent one of
its ends, a core mounted in said block and eX
nicating with said reservoir, a valve seat formed
10 on said nozzle adjacent the discharge end of said
«
14. In a fountain pen having a body portion
and a hollow nozzle thereon providing an ink 10
channel, a valve head adjacent the outer end of
said core engageable with said seat to close Said
reservoir, said body portion having a plurality
ink channel, a manually operated cam ring ro
extending slots formed therein, the combination
of a supporting block slidably mounted in said
body portion, a plurality of oppositely disposed
projections on said block extending through said
tatably mounted on said body portion and oper
15 atively related to said block for moving said valve
head into and out of engagement with said valve
seat, a resilient tubular member operatively
of oppositely disposed elongated longitudinally
slots, a core mounted in said block and ex
related to said body portion and neck portion
tending through said nozzle in spaced relation
of said block for providing a seal between the
thereto to provide an ink channel communicat
ing with said reservoir, a valve seat formed on 20
said nozzle adjacent the outer end thereof, a
valve head adjacent the outer end of said core
engageable with said seat to close said ink chan
20 body portion and block and for normally urging
Said valve head towards said` seat, and means
on said tubular member for stiffening the walls
thereof.
l2. In a fountain pen having a body portion
25 and a hollow nozzle thereon providing an ink res
ervoir, the combination of a supporting block
slidably mounted in said body portion, said block
having a reduced neck portion adjacent one end
thereof, a core mounted in said block and ex
30 tending through said nozzle in spaced relation
thereto and cooperating with the inner Wall of
the nozzle to provide an ink channel communicat
ing with said reservoir, a valve seat formed on
said nozzle adjacent the discharge end of said
35 channel, a combined Writing portion and valve
head adjacent the outer end of said core en
gageable with said seat to close said ink channel,
a manually operated cam ring rotatably mounted
on said body portion and operatively related to
40 said block for moving said valve head into and
out of engagement With said valve seat, and a
resilient tubular member rigidly connected adja
cent one of its ends to said body portion and at
its opposite end to the neck portion of said block,
45 said tubular member being normally under com
pression for normally urging said valve head to
wards said seat and being adapted to be further
compressed when said valve head is moved away
from said seat, the walls of said member having
a plurality of integral longitudinally extending
ribs formed thereon for stiiîening the walls to
prevent buckling thereof by reason of said com
pression.
13. In a fountain pen having a body portion
55 and a hollow nozzle thereon providing an ink
reservoir, said body portion having an elongated
longitudinally extending slot formed therein, the
combination of a supporting block slidably
mounted in the body portion, a projection on Said
60 block extending through said slot, a core mount
ed in said block and extending through said noz
zle in spaced relation thereto to provide an ink
channel communicating with said reservoir, a
valve seat formed on said nozzle adjacent the
65 end thereof, a valve head adjacent the outer end
of said core engageable with said seat to close
said ink channel, and a manually operated ring
nel, a manually operated ring rotatably mounted
on said body portion and secured against longi
tudinal movement with respect thereto, said ring
having a plurality of oppositely disposed spirally
arranged cam grooves formed therein adapted
to receive the end portions of said projections
for sliding said block longitudinally of said body 30
portion and moving said valve head into and out
of engagement with said valve seat, and yield
ing means engageable with said body portion
and block for normally urging said Valve head
toward said seat.
15. In a fountain pen having a body portion
and a hollow nozzle thereon providing an ink
reservoir, said body portion having a plurality of
elongated slots formed therein, the combina
tion of a supporting block having elongated aper 40
tures therein and slidably mounted in said body
portion, a tubular core having an elongated open
ing therein mounted in said block and extending
through said nozzle in spaced relation there
to and cooperative with the inner Wall of the
nozzle to provide an ink channel communicating
with said reservoir, a ñller member secured to
one end of said block and communicating with
the opening in said core and, through the aper
tures in said block, with the interior of said 50
reservoir, a valve seat formed on said nozzle ad
jacent the discharge end of said channel, a valve
head adjacent the outer end of said core en
gageable with said seat to close said ink chan
nel, a manually operated member rotatably
mounted on said body portion, means extending
through the slots in said body portion and oper
atively related to said rotatable member and
block for moving said valve head into and out of
engagement with said valve seat when said man 60
ually operated member is rotated, and resilient
means engaging said body portion and block for
providing a seal between the body portion and
block for normally urging said valve head to
wards said seat.
GEORGE S. WALTER.
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