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Патент USA US2504357

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Patented Apr. 18, 1950
2,504,353
UNITED~STATES PATENT ÓFJFICE
2,504,353
FOUNTAIN feEN
Anthony G. Rosa, Lyndhurst, N. J.
Application October 3, 1946, Serial No. 700,923
1 claim. (Cl. 120-42.4)
l
This invention relates to new and useful im
provements in fountain pens, and more especial
2
to prevent the formation of air pockets within
the ink chamber.
The ball insert tip 21a is herein provided with
the bore 65 which at its inner end is threaded
ly to those known as being of the ball point type.
Thus, one of the objects on my invention is
to make my improved fountain pen adaptable 5 as at 6E to receive a correspondingly threaded
portion 61 of a pin 68, the latter extending into
to the use of bulk ink as well as ordinary fluid
the bore 65 and engages the ball 22 by means
ink.
of a shoulder 69, a screw slot 10 is provided at
Another object of the invention is to provide
the threaded end of the pin l68 by means of which
a cap which is subject to manipulation, but which
at the same time will remain secured to the 10 the proper adjustment for ball clearance may
be made.
pen in either open or closed position.
This will occasionally be necessary due to the
A further object of my invention is to provide
wear and tear of the ball 22 and seat 69.
specific means for seating a ball point and to
The pin 68 is provided with grooves 'H to
provide adjustment for the latter, especially
16 form a passage-Way from the feed section 20a
when said ball point becomes worn.
to the ball 22.
With the above and other objects in view, this
In Figure 3 is shown a modiñcation of the
invention consists of the novel features of ccn
disclosure in Figure 1; thus, in Figure 3 the feed
struction, combination and arrangement of
member 20a is provided with an intermediate
parts, hereinafter fully described, claimed and
illustrated in the accompanying drawings form 20 member l2, the latter is formed with a threaded
opening ‘I3 extending into an 4enlarged recess
ing part of this application, and in which similar
14. The ball insert tip 2lb is provided with a
characters of reference indicate corresponding
reduced yportion 'I5 which latter is adapted to
parts in all views, and in which-_
engage the inside diameter of the threaded por
Figure 1 is a fragmentary sectional view of
a fountain pen; showing a construction especial 25 tion 13; the member 12 is provided with an open
ing 16 by means of which ink may be drawn
ly adapted to the use of fluid ink, and also ad
through the recess 14 and the threaded opening
justing means relative to the ball point.
13 into the sack 60 in any conventional manner.
Figure 2 is a sectional View taken on the line
It is obvious that changes may be made in
2--2 of Figure 1; While
Figure 3 is a View similar to Figure 1, showing 30 the form, construction and arrangement of the
several parts, as shown, within the scope of the
a modification adaptable to the use of fluid ink.
appended claim, without departing from the
In Figure 1 is shown a construction especially
spirit of the invention, and I do not, therefore,
adapted for the use of liquid ink. The feed
wish to limit myself to the exact construction
member 2da is here shown having a reduced por
tion 5l made to receive the barrel 15a and hav 35 shown and described herein.
What I claim as new and desire to secure by
ing interposed between said barrel and the feed
Letters Patent of the United States is:
member a threaded ring 58a for securing the
In a device of the class described, in com
cap (not shown) thereto. A further reduced
bination,
a feed member, a barrel and ya sack
portion 59 of the feed member Züa, is made to
40 mounted upon the feed member, a ball insert
receive the sack 60.
tip portion mounted in the feed member, Said
The ball insert tip 2 la is herein provided with
tip
portion and feed member being on one side
a bore 6l to receive a tubing E2, one end of which
formed
with an opening therebetween, the tip
is extending into the sack El) While the other
portion having a bore on one side thereof, a tub
end is provided with a cut-away portion 63 to
ing arranged in said bore, said tubing having
communicate with an yopening 16d formed be
one end extending into the sack and the other
tween the feed member 20a and the ball insert
end provided with a cut-away portion adapted
tip 21a.
to communicate with the opening between the
It may be clearly seen that by compressing the
tip portion and feed member, whereby to draw
sack member @Il in the conventional manner, 50 ink into the sack, the tip portion having a cen
and afterwards releasing the latter the ink will
tral bore threaded at its inner end, a pin mount
be drawn through the opening 64 and the tub
ed in said bore, said pin having a shoulder at
ing 62 into the sack.
one end adapted to engage a ball, the other end
If this arrangement is adapted in the use of
of said Vpin being threaded in the inner end of
bulk ink the opening 64 and tubing 62 will serve
the central boreL said pin having a slot in the
2,504,353
threaded end thereof whereby to adjust said pin,
the latter being formed with grooves, whereby
Number
2,107,424
to feed ink to the ball.
ANTHONY G. ROSA.
5
REFERENCES CITED
The following references are of record in the
2,390,636
2,425,198
2,427,068
2,432,061
2,435,135
ñle of this patent:
UNITEDYSTATES PATENTS
Number
448,937
451,808
600,299
1,500,426
4
Name
Date
Platt ____________ -_ Feb. 8,
Biro _____________ _- Dec. 11,
Moore ___________ __ Aug. 5,
Randolph ________ __ Sept. 9,
Chesler ___________ __ Dec. 2,
1938
1945
1947
1947
1947
Reynolds ________ __ Jan. 27, 1948
FOREIGN PATENTS
lo Number
' Name
Date
Cronkhite _______ __ Mar. 24, 1891
Cooper ___________ __ May 5, 1891
Werner __________ __ Mar. 8. 1898
Townsend ________ __ July 8, 1924 15
2,939
218,660
476,971
800,851
Country
Date
Great Britain ___________ __ 1911
Switzerland
____ __. _______ __
1942
Great Britain ____________ __ 1937
France __________________ __ 1930
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