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Патент USA US2087998

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July 27, 1937;
s. M. SAGÈR
2,087,998
FOUNTAIN PEN
Filed Jan. 18, 1936
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' Patented July 27, l1937
i
2,087,998
' UNITED STATES lPATENT OFFICE
2,087,998
FOUNTAIN' PEN
Solomon M. Sager, Glencoe, Ill.
Application January 18, 1936, Serial No. 59,672
12 Claims. (C1. 1z0-46)
more particularly to a fountain pen ñlling unit
means of a plunger projecting from the filler
casing and normally enclosed by means of a
for insertion in one end of a fountain pen- barrel
Cap.
This invention relates to a fountain pen and
adjacent the inner end of an improved feed bar
5 projecting into the opposite end of the pen
barrel and extending through the fountain pen
section and centrally through the barrel to with«
>in a short distance of the inner end of the
filling unit.
10
It is an object of this invention to provide
.a fountain pen filling unit adapted to be con
veniently mounted within one end of the foun
‘taìn p'en barrel to facilitate filling of the barrel.
It is also an object of this invention to pro
15 vide a fountain pen feed bar unit including a
groo’ved head portion which is adapted to be ex
tended through a fountain pen barrel section
and having the inner end thereof integrally con
Inected up with an elongated shank of reduced
20 or oval cross section adapted to extend into a
fountain pen barrel to within a short distance
of the pen filling unit.
It is a further object of this invention to pro
Vvide a fountain pen with a filling device con
25 sisting of a separate casing having an aper
tured closed end and enclosing a bellows type
filler provided with a stem which projects into
an operating plunger slidably engaged in a clo
sure bushing secured in the opposite end of the
30 casing.
_
It is another object of this invention to pro
vide a fountain pen with a filler unit adapted to
be engaged as a unit in an end of an vordinary
fountain pen barrelfor the purpose of permit
k35 ting easy filling of the barrel with ink. l
Another object of the invention'is to provide
' a fountain pen with an improved grooved feed
member of one-piece construction including a
head portion and a reduced shank portion which
40 is comparatively long and is provided with a pas
sage which connects -up with a passage in the
head section to afford an arrangement to ref
place the present type of feed mechanism which
> consists of a feed bar and -a separate flexible in
45 take tube.
It is an important object of this invention
to provide a fountain‘pen including a. body or
barrel having a one-piece feed bar unit project
ing through the pen section and having a long
50 reduced shank portion formed on the inner
end of the head portion of the feed bar and
extending to within a short distance of the inner
end of a filler unit engaged in the opposite end
of the barrel and comprising a separate casing
Q71 Si
containing a bellows-like filler operable by
Other and further important objects of this
invention will be apparent from the disclosures
in the specification and the accompanying draw
ing.
'I'his invention. in a preferred form, is illus-'
trated in the drawing and hereinafter more fully
10
described.
On the drawing:
'
Figure 1 is a central longitudinal section of an
improved fountain pen embodying the principles
of this invention and clearly illustrating the im
proved flller unit and the elongated feed bar
member in cooperating relation.
Figure 2 is an elevational view of the filler unit
removed from the fountain pen barrel and hav
ing the closure cap omitted.
Figure 3 is an end view of the inner or bottom
20.
end of the filler unit.
Figure 4 is `a top elevational view of the feed
bar unit removed from the fountain pen.
Figure 5 is an inner end view of the feed bar
unit illustrating the reduced oval construction 25
of the shank portion of the feed bar unit.
Figure 6 isa central longitudinal section of
one end of a 'fountain pen including a modified
form of filler unit and using an apertured washer
30
in the base portion of the bellows mechanism.
As shown on the drawing:
' ,'The reference numeral I indicates a fountain
pen body or barrel open at both ends. Engaged
in one end of the barrel l is a section 2 having
secured therein a pen point 3 secured between 35
the section 2 'and an improved elongated one
piece feed bar. unit comprising a head or main
body portion 4 „of substantially circular cross
section having one end thereof shaped and ta
pered to provide; a tip portion 5.k Integrally 40
formed on the inner end of the head portion 4 is
a long shank 6 of reduced oval cross section.
The one-piece feed bar ,is provided with ink
ducts or grooves 1 extending longitudinally of
the feed bar from the end of the tip portion
5 to the end of the shank 6 for insuring a con
tinuous constant flow of ink from the fountain
pen,_ when in use, at all levels of the ink in the
barrel and obviating the clogging up of the ink
flow at the inner end of the section 2 by the
formation of ink bubbles as often occurs in the
use of short feed bars, 'I‘he feed bar unit is .
provided with an intake passage 8 which ex
tends from ~the Yend of the reduced feed bar
Shank 6 centrally therethrough into the head Ul
2
v2,08'239925
Vportion~4 Where~ it connects up with a radially
directed passage arm 8 the outer end of which
communicates with
the
ink
feed ducts
or
grooves '1.
Removably engaged over the section end of the
fountain pen is a main closure cap I0 which
encloses the projecting tip end 5 of the feed bar
unit and the pen point 3 to protect the same when
the fountain pen is not in use.
10
Frictionally ñtted or otherwise secured in the
end of the fountain pen barrel opposite the sec
tion 2 is an improved fountain pen ñller unit for
use in combination with the improved feed bar
as illustrated in Fig. 1 or if preferred the filler unit
may be sold separately and engaged in one end
of a fountain pen barrel of any selected make,
such for example as the type using an ordinary
feed bar and an ink intake tube connected With
the feed bar and projected upwardly into the
20 barrel.
The improved fountain pen ñller unit comprises
a casing or housing I I open at one end and closed
by means of an end wall I2 opposite the open end.
The end wall I2 is provided with a small central
25 aperture I3. Fitted into the casing II against
the inner face of the closed end I2 is a flexible
filler mechanism for drawing up ink through the
long intake shank 6 of the feed bar. The ñller
mechanism comprises a double bulb like rubber
30 bellows I4 open at one end and communicating
with an opening l5 provided in a packing base or
flange like bottom I6 which tightly fits into the
closed end of the casing II and seats against the
inner face of the bottom I2 with the opening I5
35 in communication with the small opening I3 in
the base of the case II. The_double barrel bulb
bellows I4 is closed at its outer end and has in
tegrally formed thereon a rubber stem I'I. The
stem I1 projects into a filling plunger I8 which is
40 closed at its outer end_while the inne’r open end
is provided with a flange I9. The plunger I8 is
rotatably engaged on the stem of the bellows I4
and slidably projects through a passage in a
flanged closure bushing 20 which is tightly se
45 cured in the open end of the casing II. 'I'he
bushing 20 has integrally formed thereon an out
wardly projecting exteriorly threaded neck 2| for
the reception of a removable plunger enclosing
cap or hood 22.
50
The complete filler unit as illustrated in Fig. 2
is rigidly secured in the outer end of the fountain
pen barrel I, which is provided with a shoulder
at 23 against which the closed end I2 of the filler
case II is adapted to seat. 'I'he flange of the
55 bushing 20 fits against the. outer end of the barrel
I to complete the> insulation of the filler unit in
the fountain pen barrel.
To ñll the fountain pen barrel I with ink the
cap I0 is removed and the pen point and the
60 end 5 of the feed bar is projected into a supply
of ink. The protecting cap 22 is now removed
from the bushing neck 2| thereby exposing the
filling plunger I8 which may be repeatedly op
erated inwardly to cause a suction at the inner
65 end of the reduced shank portion 6 of the feed
bar thereby causing ink to be drawn upwardly
through the intake passages 9 and 8, and out into
the ink containing chamber of the barrel I to fill
the fountain pen. The resiliency of the double
70 bulb bellows I4 when compressed causes the
plunger I8 to be projected outwardly into its nor
mal position after each inward movement thereof
during the operation for filling the fountain pen.
Fig. 6 illustrates a modified form of a fountain
75 pen ñlline Lum; in which the parts which are
identical with those described in connection with
Fig. 1 are similarly designated. The modified
form of flller unit comprises a separate hous
ing or casing 24 open at the outer end and pro
vided with an inwardly directed flange 25 at the
inner open end of the casing. The ñlling mecha
nism which is engaged in the casing 24 comprises
a double bulb-like rubber bellows 26 consisting
of a lower or smaller bulb section open at both
ends, and a larger upper bulb portion closed at
one end and provided with a stem 21 which pro
jects into the operating plunger' I8, similar to
the arrangement illustrated in Fig. 1. , Integrally
formed on the end of the small bulb section of
the bellows member 26 is an internally grooved
packing base 28 provided with a bottom open
ing 29. Seated in the groove of the base 28 to
expand the same into a tight seal with the in
terior of the casing 24 is a closure disk or plate
30 having a center cup or boss which is provided 20
with a plurality of small apertures 3| in the side
walls thereof for distributing the discharge of air
in small jets from the filler mechanism when the
bellows member 26 is collapsed. The casing 24 of
the filler unit is frictionally fitted into the open
end of the barrel I with the casing flange 25 seated
against the shoulder 23 provided in the barrel I.
The bushing 28 through which the operating
plunger I8 slidably projects is threaded or other
wise secured in the outer end of the casing 24 'n
and has the ñanged portion thereof seated
against the outer end of the barrel I to complete
the installation of the ñller unit. 'I'he operation
of the modified form of filler unit is substantially
the same as the operation of the filler Iunit illus
trated and described in connection W'ith Figs. 1
to 5 inclusive.
'I'he fountain pen is of a simplified form in
which the pen barrel has the pen point and the
improved elongated feed bar engaged in one end 40
of the barrel while in the opposite end of the
barrel the ñller unit is installed in cooperating
relation with the inner end of the reduced shank»
portion 6 of the feed bar. While the improved
feed bar and the filler unit are used in combina
tion in the form of the fountain pen illustrated
in Fig-_y 1, it will of course be understood that the
important part of the invention is the provision
of the filler unit as illustrated in Fig. 2 and in
cluding the filler unit cap 22 which may be con
veniently installed in different makes of fountain
pen barrels to serve as a filling medium with a
feed bar of the type described in this case or with
the ordinary type of feed bar o-r the-feed bar
used in combination with a flexible intake tube.
It will of course be understood that various de
tails of construction may be varied through a
wide range without departing from the principles
of this invention and it is therefore not the
purpose to limit the patent granted hereon other
wise than necessitated by the scope of the ap
_pended claims.
60
I claim asv my invention:
1. A fountain pen comprising an elongated
barrel having an annular seat formed in one end
thereof, a section at the opposite end of the
barrel, a pen point and a feed bar secured in the
section, said feed bar having an elongated re
duced shank extending through the barrel to
within a short distance of the annular seat,_ a F
filler unit engaged in the opposite end of the
fountain pen barrel and seated on said seat, said
filler unit comprising a casing having an aper
tured bottom seated against said seat, a resilient
bulbous structure of rubber or the like seated in
3
2,087,998
the casing, a stem integrally formed on the bulb
ous structure, a hollow plunger engaged over -
the stem and provided with a ñange seated
against the bulbous structure, a bushing secured
CFI in the open end of said casing and also seated
against the end of the fountain pen barrel with
the stem and the _hollow plunger projecting
operating plunger when the filler unit is not in
use.
,
'
l
' 6. Ín a fountain pen, a fillerv unit comprising a
casing closed at one end and open at the, opposite
end and secured in the barrel of the fountain pen, L1
said closed end of the casing having an aperture
' therein, a bulbous structure seated in the casing -
through said bushing to expose the end of the open at one end and closed at the opposite end,
plunger to permit operation of the bulbous struc - an apertured packing base at the- open end of
ture to cause filling of the fountain pen through the bulbous structure seated against the aper
the feed bar, and a cap removably engaged on tured closed end of the casing, a stem integrally
the bushing to enclose the hollow plunger after formed on the closed end of the bulbous struc
vture and projecting from the casing, a bushing
a filling operation of the fountain pen.
engaged in the open end of the casing to close
2. A fountain pen comprising a barrel having
the casing and the fountain pen barrel, a plung
15 a section engaged in one end thereof, a pen point
er engaged over the stem and slidably projecting
in the section, a feed bar in the section in con
tact with the pen point and including a reduced through the bushing, a' flange integrally formed
passaged shank which extends into the fountain on the plunger seated on the closed end of the
pen barrel to within a short distance of the end bulbous structure and engaged against -the inner 20
end of the bushing to hold the plunger against
20 of the ink chamber of the fountain pen barrel,
and a filler unit secured in the outer end of the removal from the bushing, and a cap removably
fountain pen barrel and including an apertured engaged on‘the bushing for enclosing the project
casing, a bulbous structure in said casing, an
operating plunger engaged with the bulbous
structure and slidably projecting out of one end
of the casing to permit operation of the bulbous
structure to cause filling of the fountain pen, and
a cap removably engaged on the casing to en
close the operating plunger after a filling oper
30 ation.
3. A fountain pen comprising a barrel having
a section engaged in one end thereof, a pen point
in the section, a feed bar in the section in contact
with the pen point and including a reduced pas
35 saged shank which extends into the fountain pen
barrel to within a short distance of the end of
the ~ink chamber of the fountain pen barrel, a
filler unit secured in the outer end of the fountain
40
pen barrel and including an apertured casing, a
bulbous structure in said casing, an operating
ing end of the plunger. A
'7. In a fountain pen, a filler unit comprising
a casing open at one end and having an aper
25
tured base at the opposite end, said casing se
cured in one end of the fountain pen barrel, a
bushing secured in the open end of the casing
and having a flange seating against the end of
the fountain pen barrel. a bulbous rubber-like 30
structure engaged in the casing closed at one
end and having an apertured packing base at
the opposite end in sealing contact with the in-ner Wall of the casing and with the apertured
base of the casing,` a stem integrally formed on 35
the closed end ofthe bulbous structure and pro
jecting outwardly through -the bushing, a flanged
plunger engaged on the bulbous structure over
vsaid stem. and slidably projecting through the
bushing-into a 4position to permit operation of 40
plunger engaged with the bulbous structure and the bulbous structure for filling the fountain pen
slidably projecting out of one- end of the casing barrel, and a closure removably engaged on the
to permit operation of the bulbous structure to ' bushing'for enclosing the plunger when the same
.
cause ñlling of the fountain pen, a cap removably is not in use.
8. In a fountain pen, a filler unit comprising
engaged on the casing to enclose the operating plunger after a filling operation, and a main cap a casing removably secured in one end of the
for removal engagement over the section end of
the fountain pen barrel to enclose the pen point
and the projecting end of the feed bar when the
50 fountain pen is not in use.
V 4. In a fountain pen, a ñller unit comprising a
casing for insertion in one end of the fountain
pen barrel, a bulbous rubber-like structure open
at one end and closed at the opposite end disposed
' C1 en in the casing, a base ñange integrally formed on
the open end of the bulbous structure, a stem on
the closed end of the bulbous structure and
projecting out of the casing, an operating plung
er slidably engaged in thel casing over said stem
„fountain pen barrel, a bulbous rubber-like struc
ture in the casing,v and plunger means seated
on the bulbous structure and projecting from
the casing to permit operation thereof to cause 50
application of pressure to the bulbous structure.
9. In a fountain pen, a filler unit- comprising
a casing adapted to be removably secured in
one end of a fountain pen barrel, a. bulbous rub
ber-like structure in the casing, a grooved pack
ing base integrally formed on one end of the
bulbous structure, an apertured disk seated in
the grooved base to expand the same into seal-_
ing contact with the interior of the casing, a
stem integrallyformed on the opposite end of 60
the
bulbous structure and projecting from the
ation of the bulbous structure for filling the- casing,
and an operating plunger rotatably con
fountain pen.
’
.
5. In a fountain pen, a filler unit comprising an tacting the bulbous structure and enclosing said
stem and slidably projecting from the lcasing to
apertured casing secured in one end of the foun
65
65 tain pen barrel, a bushing for closing one end of ' permit operation of the bulbous structure.
10. A _fountain pen including in combination
the casing, a bulbous structure in the casing openat one end and closed at the opposite end, a stem a filler unit comprising a casing, a rubber-like
filling means engaged in the casing and compris
integrally formed on the closed end of the bulb'
ous structure and projecting outwardly through ing a bulbous portion, a bellows-like section in' 70
70 the bushing, an operating plunger rotatably en
tegrally formed on one end of the bulbous por
gaged on the stem and slidably projecting through tion, an apertured base connected with the bel
the bushing to permit operation of the bulbous lows-like portion, a stem integrally formed on
structure for filling the fountain pen, and a cap the bulbous portion and projecting from the cas
removably engaged on the bushing to enclose the ing, and -an operating plunger seated on the ‘bulb 75
60 and projecting from the casing to' permit oper--
4
2,087,998
ous portion and enclosing said stem, said operat
ing plunger slidably projecting from the casing
into a position to permit operation of the bulbous
structure Within the casing.
11. A fountain pen ñlling unit comprising a
casing, a hollow plunger slidably projecting >from
the casing closed at one end and having a flange
formed on the inner end to prevent removal of
the plunger from the casing, a bellows-like rub
10 ber structure engaged in the casing, a stern in
tegrally formed on the bellows-like rubber struc
ture and projecting into the plunger, a grooved
packing base formed on the bellows-like rubber
structure, and an apertured disk engaged in the
grooved base to expand the same into, a tight
sealing flt with the interior of the casing.
12. In a fountain pen including in combina,
tion a ñlling means comprising a large main bulb
portion open at one end .and closed at the oppo
site end, a stem on the closed end of the main
bulb portion7 a smaller bulb section integrally
formed on the open end of the large bulb por
tion, an internally grooved apertured base, in
tegrally formed on the small bulb section, and a. 10
disk seated in the groove of said base and having
a cup-shaped portion provided with a plurality
of air escape apertures in the side Walls thereof.
SOLOMON M. SAGER.
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