Патент USA US2087998код для вставки
July 27, 1937; s. M. SAGÈR 2,087,998 FOUNTAIN PEN Filed Jan. 18, 1936 ////////////, Eg_/ N E; ¿_4/ ze . ¿a l . X1 j 2_5-d; Ó’ à“ @T ' 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.