US2093701A - Fountain pen - Google Patents

Description

Sept. 215 193?. J. zAHl-:L 2,093,701

FOUNTAIN PEN Filed Sept. 14, 1936 Fig. lf:

l.. Ill/Illal l A Patented sept. a1, 1937 Zdl UNITED STATES PATENT GFFIQE FOUNTAIN PEN Jaroslav Zahel, Prerov, Czechoslovakia Application September 14, 1936, Serial No. 100,746 lin Germany July 12, 1935 9 Claims. (C1. 1Z0-47) 'Ihis invention refers to new devices and mechierred embodiment is conically enlarged at its anisms in fountain pens the object of which is iront end and forms a fixed sealing body of to eliminate deterioration of the sealing surthe closing device and is provided with passages faces of the ink now closing and obstructive 8l. The movable sealing body l0 is formed with working of the suction mechanism due to the a corresponding cone and is provided with pas- 5 fact that the sealing surfaces might come out sages lili. The conical contacting sealing surof their coaxial position. faces of both sealing bodies 8 and l@ are urged An object of this invention is a new closing together by means of a spring il. device for controlling the ink admittance to the In the position shown in Fig. l, the sealing 10 pen tip which device may be associated to a sucbodies 8 and l0 of the closing device have been l0 tion iilling mechanism of new and improved rotated into the open position in which the passtructure. sages l0! are opposite to and in co-operation In a preferred embodiment of my invention with the passages 8l. Thus, in this open posicooperating sealing bodies are provided between tion of the closing device, ink is admitted bethe ink container within the penholder and the neath the tip of the pen from the ink container l5 ink admission duct to the pen tip, the contactof the penholder 9 and will ow at the bottom ing sealing surfaces of said sealing bodies being oi the channel 6l, whilst air which enters the passed by passages, the opposition and `co-operslit oi pen tip 3 may reach the interior of the ation of Which-and thus the ink admittance to penholder S in passing the upper part oi the duct the pen tipis controlled by a movable part consection E l. 20 nected to the suction filling mechanism. When rotating the movable sealing body I0 It is a further object of this invention to conrelatively to the fixed sealing `body 8 out of its nect and combine the new closing and ink conopen position, admittance of ink from the pentrol device to operating elements of the lling holder 9 tothe pen tip 3 will be stopped. Ro-

mechanism. tation of both sealing bodies 8 and lll, one rel- 25 Other objects and advantages will be hereinatively to the other is operated by the manipuafter set forth in this specication and in the lation button i8 which is connected with the claims and will be shown by way oi illustration movable sealing body i0 by means of the conin the accompanying drawing, in which nection rod i2 of tube like form. The connec- Fig. 1 is a longitudinal section of an embodtion rod l2 may be connected to the movable 30 iment of a fountain pen according to this invensealing body non-rotatably according to Figs. 1, 5

tion. and 6, but slidably by providing grooves |02 Fig. 2 is a cross section taken on line II--II withinalange E03 into which grooves projections of Fig. 1. E22 of the tube'like connecting rod I2 may enter,

Fig. 3 is a modiiication of a penholder accordor vice-versa. v35 ing to this invention shown in longitudinal sec- The tube like connecting rod i2, by means of tion of its front part. spring il, is permanently urged against the Fig. 4 is a longitudinal section of the rear part suction part i3, which governs decrease and inof another modiiication. crease of the container Volume alternatingly on Figs. 5 and 6 are a longitudinal view of the reciprocation of the manipulation button I3. 40 movable sealing body and the front part of the The spring H is, advantageously, made of rustconnection rod showing means for connecting proof material so that it may be mounted in them. the very ink container of the penholder 9. At

Fig. 7 is a sectional view on the line VII-VII its opposite end, the tube like connection rod I2 of Fig. 4. is hinged or fast to the button i8 and the suc- 45 Referring to Fig. 1, a supporting body 2| of tion part but may be rotated thereagainst when the writing pen 3 is fastened to the penholder. applying force. The pen sup-port 2i is provided with a duct 22 The suction part may consist of a gas-tight which discharges at its one end into a duct 6I bag i3, f. i. of rubber, or of a piston H23 or of and at its other end into the conduit 23 of a both, i3 and 23 jointly, as is shown in Fig, 1. 50 passage tube 2.6i. According to the modication shown in Fig. 4, The duct iii at the upper surface of the supthe tube like connecting rod l2 is fast to the port 2i is provided for supplying ink from the button i8 but may be rotated when applying ink container to the tip 3 of the pen as it is force, the pin |82 of the button I8 being driven known per se. The passage tube 2li in its prewith its end into the cylindrical bore of the con- 55 nection rod I2, and being adapted to be rotated therein when applying force.

This connection is applied if one of the sealing bodies f. i. cone 8, is fast to the penholder 9, be it by screwing it in (Fig. 3) be it by driving it in, and the position of passages II may then be set by rotating the connection rod I2 against the button I8 to such a position that the passages I DI are just in opposition to passages 8| in the open condition.

If the sealing cone 8 is of even surface, thus without thread, and if, when being mounted, it is brought into its correct position by means of the threaded socket 'I (Fig. 1), which may be provided with inside or with outside thread, or by driving it into a corresponding opening of the penholder 9, the tube like connection rod I2 will be hinged to button I8 according to Fig. 1, the pin |82 being provided at its end with a head I3| of non-round f. i. of square or oblong cross section, over which head a rubber or otherwise compressible gas-tight bag I3 has been drawn and which together enter a corresponding opening or slot at the rear end face of the connecting rod I 2. The advantage of this connection is that the wall of the rubber bag remains continuous and entirely closed and that the bag need not be cemented to the pin I 82 of the button I8, but may embrace the non-round head |8| without any interruption of its wall, so that the connection tube I2 will be rotated by intermediary of the wall of said rubber bag I3.

The stationary sealing or closing body 8 may be driven or screwed into the holder 9 from the front side, as shown in Fig. 1, or from the interior as shown in Fig. 3, and may be sealed thereagainst either by the flange 82 bearing against a seat 2O of the holder 9 (Fig. 3) or by means of its conical sealing surface which is extended towards the front of the holder and bears against the conic surface 90, provided at the interior wall of the holder 9 (Fig. 1).

The pen is lled by reciprocating the button I8 which, by means of spring II, is urged out of the holder. Reciprocation of the suction piston |23 or/and axially compressing or tilting over the rubber bag I3 produces sub-pressure within the holder and thus suction of the ink through the ducts 22 and 23.

For the duration of this axial movement, the sealing body III has been rotated into such a position as to close supply passages IOI, 8| leading to the pen tip.

The rubber bag may be of soft, gas-tight, and axially compressible material, or may consist in a thin walled bag of hard rubber or of non-corrodible metals which may be compressed axially like a harmonica bellows.

Axial movement of the suction stroke of button I8 is guided by a pin and slot connection, the pin I4 (Figs. 1, 4 and 7) being mounted at the throat |82 of the button I8, and the notches |5I being provided at the sleeve I5, which is Screwed into the pen holder, or vice-versa.

The axial movement of button I8 is limited to the outside by perforated disc I6 (Fig. l) which is fastened to sleeve I5 and covers the guide notches |5I. This axial movement might otherwise be limited by the means that the notches |5| do not extend to the rear end of the sleeve but end before its rearward face (Fig. 4). The perforated disc may be provided with an ornamental strip on its flange |60' forming the end of the holder body.

For filling the fountain pen, button I8, to-

gether with connection rod I2, and sealing body I0, will be rotated about out of their position represented in Fig. l (see also Fig. 7) so that the pin I4 will leave the edge of sleeve and will enter the notches |5I; button I8 together with suction elements I3 and |23respectively being thus enabled to be reciprocated.

Spring II will then operate an outward stroke. After the fountain pen has been filled, button I8 will be urged into its inward position and rotated again about 90 so that the pin I4 bears against the inward edge face of sleeve I5 and button I8 is retained in its inoperative position.

v Detents may be provided at the inner frontal surface of sleeve I 5 for positioning pin I4.

A packing I'I (Fig. 4) may be provided at the inside surface of button I8 to bear against the frontal surface of sleeve I5, or against perforated disc I 6, for sealing the passage in case ink should pass between button I8 and sleeve I5 on deterioration of rubber bag I3.

The covering tongue 83 (Fig. 3) covering the pen tip 3 and which is formed as an extension of the fast or stationary sealing body 8 or of the thread socket 'i (Fig. 1) will increase constancy of ink flow to the pen tip especially if, when writing, hard pressure is exercised on the pen tip.

I claim:

1. In a fountain pen in combination, a penholder, a pen, a support for said pen, an ink duct and a suction duct provided in said support, an ink container, a suction mechanism for filling said ink container, a manipulation button for said suction mechanism, a fixed front end sealing body of said ink container, an extension of said suction mechanism, a front end sealing surface of said extension bearing against a rear end sealing surface of said fixed front end sealing body, both said sealing surfaces being passed by co-operating ink passages communicating to said ink duct on the one hand and to said ink container on the other hand, one of said sealing surfaces adapted to be slidably rotated upon the other for placing said passages in or out of opposition and co-operation and for thus controlling ink admittance to the pen.

2. In a fountain pen in combination, a penholder, a pen, a support for said pen, an ink duct and a suction duct provided in said support, an ink container, a suction mechanism for filling said ink container, a manipulation button for said suction mechanism, a xed front end sealing body of said ink container, an extension of said suction mechanism and movable thereto, a front end sealing surface of said extension bearing against a rear end sealing surface of said fixed front end sealing body, a spring being interposed between said suction mechanism and said extension, both said sealing surfaces being passed by co-operating ink passages communicating to said ink duct on the one hand and to said ink container on the other hand, one of said sealing surfaces adapted to be slidably rotated upon the other for placing said passages in or out of opposition and for thus controlling ink admittance to the pen.

3. In a fountain pen in combination, a penholder, a pen, a support for said pen, an ink duct and a suction duct provided in said support, an ink container, a suction mechanism for filling said container, a manipulation button for said suction mechanism, two front end co-operating sealing bodies of said ink container, a forward extending and rotatably mounted connection rod of said suction mechanism adapted to support slidably but not rotatably thereon one of said sealing bodies, a spring being interposed between said rod mounted sealing body and said connection rod, the contacting surfaces of both co-operating sealing bodies being passed by cooperating ink passages communicating to said ink duct and to said ink container, one of said contacting surfaces being adapted to be slidably rotated against the other together with said movable sealing body by means of said suction mechanism connection rod.

4. In a fountain pen in combination a penholder, a pen, a support for said pen, an ink duct and a suction duct provided in said support, an ink container, a suction manipulating button adapted to be reciprocated, a pin fastened to said button and protruding into the interior of said holder, a gas-tight compressible bag fastened at its edgeto said holder and adapted to be slipped over said pin, two front end co-operating sealing bodies of said ink container, one being fast to the container, a connection rod rotatably mounted within said \holder and adapted to support slidably but not rotatably and on its front end the second of both said sealing bodies, said connection rod being further adapted to clutch both said pin and said bag with its rear end, a spring being interposed between said movable sealing body and said connection rod, means for latching said button, said pin, and said connection rod in their normal position, said spring adapted to urge together the contacting surfaces of said sealing bodies and, on said latching means being released, to urge said connection rod, together with said pin, said button, and Said bag to operate a suction stroke.

5. In a fountain pen in combination a pen holder, a pen, a support for said pen, an ink duct and a suction duct provided in said support, an ink container, a suction manipulating button adapted to be reciprocated, a pin fastened to said button and protruding into the interior of said holder, a gas-tight compressible bag fastened at its edge to said holder and adapted to be slipped over said pin, two front end co-operating sealing bodies of said ink container, one being fast to the container, a connection rod rotatably mounted within said holder and adapted to support slidably but not rotatably on its front end the second of both said sealing bodies, said connection being further adapted to clutch both said pin and said bag with its rear end, a spring being interposed between said movable sealing body and said connection rod, means for latching said button, said pin, and said connection rod in their normal position, said spring adapted to urge together the contacting surfaces of said sealing bodies, and, on said latching means being released, to urge said connection rod, together with said pin, said button, and said bag to operate a suction stroke, said contacting surfaces of said sealing bodies being passed by co-operating ink passages communicating to said ink duct and to said container, said movable sealing body adapted to be rotated by said manipulation button relatively to said sealing body Which is fast to the Container, for placing said passages in or out of opposition and co-operation and for thus controlling ink admittance to the pen.

6. A fountain pen sealing device comprising an interior sealing body provided with an annular sealing surface of greater diameter than that of the bore of the penholder, means for supporting said annular sealing surface against the interior wall of the fountain pen holder, said sealing body further having a tongue forming a pen support and covering the pen tip slit.

7. A fountain pen as set forth in claim l, said fixed front end sealing body being mounted to the holder by means of a sleeve inserted into the holder from the front side.

8. A fountain pen as set forth in claim 1, both sealing surfaces being of conical shape, and the sealing surface of said fixed sealing body being extended toward the front of the holder to bear against an associated interior sealing surface of said holder.

9. A fountain pen including a filling device which comprises an ink container, a governing means for alternatingly decreasing and increasing the volume of said container, a manipulation button at the rear end of said fountain pen, an actuation rod mounted to said button and forming a throat thereof, said rod being adapted to reciprocate said governing means, a guide sleeve for said rod, a pin and groove guide associated to said rod and said sleeve, said groove being open at its rear end, an annular perforated disc for embracing said rod and for covering the rear ends of both said sleeve and pen holder, the outside edge of said perforated disc forming an ornamental strip around said penholder.

JAROSLAV ZAHEL.

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