US2035555A - Automatic fountain pen - Google Patents

Description

Mal-ch31, 1936. 'J. LANDAU AUTOMATIC FOUNTAIN PEN Filed May 19, 1934 2 Sheets-Sheet J,

Illlll l Guam;

March 31, 1936. LAN'DAU 2,035,555

' AUTOMATIC FOUNTAIN PEN Filed May 19, 1934 2 Sheets-Sheet 2 sq- .6. Sgt-Q. 7

UNITED STATES PATENT OFFICE 2,035,555 AUTOMATIC FOUNTAIN PEN Joseph N. Landau, New York, N. Y. Application May 19, 1934, Serial No. 726,542

' 10 Claims.

My invention relates to fountain pens and more particularly to fountain pens in which the pen point is protected by a retractible sleeve slidably mounted upon the pen body or barrel.

One object of my invention is to provide a novel form of protective sleeve for the fountain pen which shallinclude a shutter for closing the open end of the sleeve.

Another object of the invention is to provide a protective sleeve of the character designated in which the shutter shall form a finger rest when the fountain pen is in use.

Another object of the invention is to provide a protective sleeve of the character designated in which the shutter shall be positively operated to prevent any interference with the operation of the pen.

Another object of the invention is'to provide a fountain pen attachment which shall be adapted to the usual and standard fountain pen dimensions.-

Another object of the invention is to provide. a fountain pen of the character designed which shall be simple in operation and rugged in construction and more reliable in operation than similar devices heretofore employed.

These and other objects of the invention will be more apparent from the following specification and drawings and particularly set forth in the claims.

In the drawings:-

Fig. 1 is a perspective-view of a fountain pen embodying my invention;

Fig. 2 is an elevational view partially in section and showing the pen in extended position; Fig. 3 is a sectional view on line 3-3 Fig. 2;

Fig. 4 is an exploded view showing the several parts in perspective;

Fig. 5 is a perspective view of a fountain pen having a protective cap constructed in accordance with my invention;

Fig. 6 is an elevational view partially in section; I

Fig. 7 is a similar view showing the pen in an extended position; and

Fig. 8 is a perspective view showing the operation 'of the finger rest.

Referring to Figs. 1, 2, 3 and 4 of the drawings I there is shown the general assembly of a fountain pen embodying my invention. In this arrangement the pen comprises a pen point or nib. II), a throat portion I I, an ink reservoir or sack I2 and a tubularbarrel l3, all of which are secured together to form the penholder unit.

The upper end of the barrel I3 is provided with tion l8 adapted to receive a clip member I9, lock nut I9 and a retainer cap 20. Located within the cap 20 and protected thereby is a plunger 2| arranged to actuate a yieldable filler member 10 comprising elements 22 and 22' extending inside the barrel and adjacent to the yieldable sack l2 to effect the filling of the pen as well understood in the art.

The pen point I0 is protected, when not in use, 16 by a slidable sleeve 23 provided with a novel form of closure or shutter member 24. When the pen is in its extended position, the shutter is arranged to move to one side of the sleeve and form a finger rest for the pen so as to pre- 20 ventsoiling of the fingers from-any ink leakage that frequently occurs in the every day use of fountain pens. Another important feature of this closure member to prevent leakage of ink is the tapered valve seat surface 25 on the shut- 25 ter and the corresponding. beveled seat 26 at the end of the sleeve 23. The inside of the closure is cup shaped to retain any ink that may accidently drop or leak from the pen while it is being carried upon the person or otherwise handled. 30 To further provide for any leakage from theclosure, an absorbent element 27 is secured in the top of the closure. This absorbent element is preferablyin the form of a. renewable blotter disk. 35

The novel-form of actuating mechanism for the shutter 24 comprises a-spring rod 28 extending'longitudinally of the barrel l3 and located in a channel formed by complementary grooves 29 and 30 provided in the barrel l3 and the sleeve 23 40 respectively. One important feature of this construction is that the member 28. operating in the channel prevents the barrel and sleeve from being rotated and thus interfere with the opera-- tion or position of the finger rest as provided 45 pen barrel. The arrangement is such that the spring 35 shall pass within the band spring 34 during the relative sliding movement of the parts. The rod 28 connects with the closure shutter 24 by means of a segment arm 31 connected to the rod bya pivot pin 38. The segment arm is provided with a rear arcuate portion 39 which is adapted to pivotally connect with a'yieldable pivot spring 40 positioned at the end of the sleeve 23 and adjacent the tapered closure seat 26. The upper end of the rod 28 is provided with a control notch H which is adapted to engage the spring 35 and thus cause a snap action of the shutter to open the same when the pen is to be projected and a snap action to close the same when the pen is finally retracted within the sleeve.

The movement of the sleeve is' controlled by a novel form of yieldable bushing 42 carried by the upper end of the sleeve and secured thereto by any suitable device such as threads. This bushing is provided with yieldable spring fingers 43 which are adapted to engage in peripheral grooves 44 and 45 spaced apart on the barrel l3 and thus control the extent of movement of the pen, and locking it in these to predetermined positions, relative to-the protective slidable sleeve.

With the pen in the position shown in Fig. 2, it will be noted that the shutter is moved outwardly and to one side of the sleeve and directly beneath the pen l0 so as to form a convenient finger rest while the pen is in use as heretofore described and illustrated in' Fig. 8.

There is shown in Figs. 5, 6, and '7 a modification of the protective sleeve in which it is arranged-to form a cap for the pen which supports the pen in its upright position while being carried on the person and at the same time, permit use of the pen without the bother and annoyance of removing the cap by unscrewing the same as heretofore experienced in the operation of fountain pens of thischaracter.

In this embodiment of my invention, the fountain pen includes the usual elements of a barrel 46, cap 41 and a. support clip 48 secured thereto by any suitable means such as the rivets and band member 49. The cap or protective sleeve as it may be called is provided with an inwardly turned flange portion 50 at one end thereof which shall fit over any ordinary standard fountain pen barrel and slide relative thereto. The sleeve is retained on the barrel 46 by a threaded bushing 5| cooperating th threads 52 on the barrel 46. The lower extremity of the .bushing is provided with yieldable fingers 53' which control the movement of the sleeve as more fully hereinafter described. A throat portion 54 connects with the pen barrel and carries the usual pen or nib which is to be protected. The movement of the sleeve is controlled by spaced peripheral grooves 50' and 55 and the spring fingers 53' provided outwardly extending projections at the extremities thereof.

It will thus be noted that the fingers 53' also serve as a guide for the sleeve while being slid along the barrel from its operative position to its inoperative position to expose the pen for use.

The sleeve is provided with a closure shutter 58 which is actuated by a lever rod 51 retained by a spring 56 surrounding the throat 54. The rod is connected to the shutter by a lever 59 pivotally connected to one side of the sleeve and adjacent to the tapered closure seat 6| by a spring pivot member B0. j The rod 51 is provided with a notch 51 which is adapted to engage a rib member 54' at the extremity of the throat 54. The throat is also provided with a longitudinal slot 58' for accommodating the shutter control rod 51. This slot and the accompanying control rod also serve to maintain these parts in alignment during the reciprocable or sliding movement of the sleeve cap 41 relative to the barrel 46, and at the same time position the shutter 58 for use as a finger rest to one side of the pen throat.

Having thus described a protective sleeve for a fountain pen constructed and arranged in accordance with my invention, it-is obvious that various changes may be made therein without departing from the scope of the invention as set forth in the claims.

Having thus fully described my said invention, what I claim as new and desire to secure by Letters Patent is:

1. In a fountain pen, the combination of a pen holder body having a pen point mounted therein, a protecting sleeve for the point including a threaded member adapted to engage threads on the penholder adjacent to said pen point, the sleeve sliding on the threaded member, a shutter for closing the end of said sleeve, said shutter being pivotally connected to one side of said sleeve and inside the open end thereof, and means connecting said shutter and actuated by said sleeve for swinging said shutter about its pivotal connection to open and close said sleeve.

2. In a fountain pen, the combination of a pen holder body having a pen point mounted therein, a protecting moveable sleeve for the point mounted on the body, a shutter for closing the end of said sleeve, means connecting 'said shutter to the interior of one side of said sleeve including a segment, a rod pivotally connected to said segment for connecting said rod to said body, whereby the shutter shall be operated by the movement of said sleeve to open and close said shutter.

3. In a fountain pen, the combination of a pen holder body having a pen point mounted therein, as. protecting sleeve having walls of uniform thickness, an inside peripheral groove adjacent to the open end of said sleeve, a yieldable member located in said groove, a shutter for the open end or said sleeve, a segment-having one end rigidly connected to said shutter and the other end engaging said yieldable member, and a rod for engaging said segment for opening and closing said shutter.

4. In a fountain pen, the combination of a penholder and pen therefor, a slidable protective sleeve for said pen, a closure for the end of said sleeve, and means carried by the penholder for operating the closure, and other means operatively associated with the penholder for yieldably locking the sleeve in extended and retracted positions.

5. A fountain pen of the character described in claim 4 including a slot formed in one side of saidpenholder, a closure actuating member carrled in said slot and pivotally connected to said closure, and means included in said actuatin member for engaging the penholder to open and close the closure member at predetermined positions of said protective sleeve.

6. The combination of a fountain pen holder and pen therefor, a slidable protective sleeve for the pen including a closure member to form a cap, a threaded bushing for attaching said sleeve to the penholder, means actuated by the movement of the sleeve for opening and closing the closure member, and means carried by the sleeve for yieldably locking said sleeve in the extended and retracted positions.

7. A fountain pen of thecharacter described in claim 6 including means for preventing relative rotational movement between said penholder and said sleeve.

8. An attachment for a fountain pen comprising a sleeve member adapted to slide over a fountain pen barrel, threaded means on said barrel adjacent to the pen point for attaching the sleevethereto and guide the same during the sliding movement thereof, a swingable closure cover for the open end of said sleeve, and means actuated by the sliding movement of said sleeve to actuate '3 the cover to permit the projection of the pen from said sleeve.

9. An attachment of the character described in claim 8 in which the attaching means for the

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