US 1788212 A
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5. SUMMER FOUNTAIN PEN Jan. 6, 1931.
Filed Aug. 9. 1929 2 Sheets-Sheet 1 iNVENTQR ,1 .126! fizz/172262 LES ZIZ Q 5. SUMMER FCUNTAIN PEN Filed Aug. 9', 1929 Jane 6, 11931 2 Sheets-Sheet 2 lNV ENTQ R Jk zrzam! fizmmw Patented Jan. 6, 19351 1 sie mnnn snnlvrnng or LBANY, n w ORK; lissrenonfor. one-HALF pro nimnx s.
SUMMER, or NEWYORK, NJY. v I
.- j o NTArn PEN,
In neatio filed Au ust 9,1929. "Serial No. 384, 660.
My present invention relates to a fountain pen and more particularly. to a fountain pen of that type commonly known as a self-filling pen.- 1In this type of pen, as generallyconstructed, the barrelcontains a rubber sack or receptacle which in fillin the pen is evacuated by being compressed by wise,in.,order that when the end of the pen is dipped into an ink or writing fluid andthe lever released the sack-is-fill'ed by theaction of atmospheric pressure. r
It is more or. less common experiencein the use of fountain pensto find the pen point, and oftentimesthe feed (tube, cloggedbecause ofthe ink or writing fiuidhavinglbecome dried therein after a period ofnon-use. Furthermore, much inconvenience, and some.- times difiiculty, is experiencedin causing the ink to flow properly. The usuai method of inducing the ink to flow is by shaking or knocking the pen against some'other object. Now the purpose of my present invention is to overcome this difliculty and in a fountain pen preferably of the self-filling type to providea means forflushing or priming the feed tube and pen point whereby the ink or other writing fluid will flow. sufficiently freely for writing-purposes wheneverit is desired to use thc'pen. Of course, the flushing of the feed tube and penpoint might be accomplished by actuating the filling lever, but when thus flushing the pen'point the ink is likely to be ejected too freely fromthe pen andipossibly with sufficient force to not only squirt the ink and consequently waste the same, but in addition to soil the objects. with which the ink thus wasted comes into Contact- It is the purpose of my invention to so incorporate the flushing and priming-devices that in the ordinary useoof. the pen they are operated automatically, that is, unconsciously by the point may be effected by placing the cap on the reverse end of the pen barrel,or by removing the capfrom 1ts normal non-use position on thepen barrel, or removing'the pen from its socket intheica'se of a' 'desk typeof alever, or otl1er-- fountain pen. IThis action is accomplished by the employment of a suitablev device to compress the .ink sack or container only sulhciently .toc'ause enough ink to flow into the feed tube and to the pen point to supply the necessary initial amount of ink for writing purposes. This apparatus has a further advantage that when either removingthe cap from the reverse endof the barrel,-.or when placing: the .cap over the pen point on, the
barrel, thereis a tendency to permit the ink sack or reservoirto expand slightly thereby causing the ink to flowfrom the pen point and. feed tube into the sack to tl1ustend-,.at
' f The fountain penmade in accordance with my invent-ion 'will be hereinafter more part1cula-rlydescr1bed 1n COIlJIllIClZlOIi with the accompanying drawings in which Figure 1 is aplanof'a fountain pen in which the I invention isincorporated,
F ig.-2 is an'enlarged section on line 2-2, Fig.1, is anenlarged partial longitudinal section illustratingqthe form of theinven 'tion asshown in Figs. 1 and 2,
- trated in'Fig;5.
' Referring toithe drawings andmore particularly to Figs. 1 to 4 inclusive. it will be seen that carrying'out; the invention" the peirmade in accordance'therewith is conin which there isffitted a pen point 17. The
structed to include the usual barrel. 15 having La feed tube section 16 at one end'th'ereof and pen made to include theusual cap or cover member 18. Also, asis customary, the end of the barrel adjacent the feed tube section 16 4 may be screw threaded, as indicated at 19, in order tobe engagedyby theinternalscrew threads 2O provided for this purpose within l the cap 18;
Of course, as in some instances, these screw threads may be omltted and the cap held frlctionally 111 positlon to coverthe pen point 111 j the saniemanner' that: when the penis in luse the cap isplac'ed-over and maintalned -fr1ctionally on the reverse end' of the barrel.
In; thistyper o f' pen the barrel l5is .iitted v 't'v'ith'a Sack b r I'E SelVOllQ l inade ldf suitable material such, forexample, as'riibb'er and" adapted to contain ink or other writing fluid.
One end of the sack 21 is suitably connected to the feed'tube section lama th'eseiparts secured in'the barrel in the'usual or any desired manner; In a suitable position in the barrel '15 the same is fitted witha leverl22 adapted Y to be operated to'compressthe adjacent por tion of the sack, thereby evacuatlng-the same so thatafterthe pen point and'the end of the f edtube havebeen placedfibeneatlr the sur- 1 face'of a quantity of writing fluid and the lever released the ink will be drawnlinto the sackor reservoir to substantially fill the same constructionsand the invention in the present Ill case relates more particularly to abutto'n or plunger associated with the barrel and adapted whenpressed inwardly to depressthe sack or reservoir, or a portion thereof, sufliciently to cause enough ink or "other writing fluid to flow to the feedtube section and the pen point 7 to prime the same.
To this end,as illustrated in these figures of the drawing, 1 may employ a plate 2% of suf- J'icient dimensionsto 'accomplishthe purpose and provide the same with a flan-ge25 which extends through ,a slot 26 provided therefor I in the'pen barrell5, A plate PAC-normally lies "theouter surface of the=plate against the between a portion ofthe sack2l and the inner face of the peubarrel, the resiliency-of-the sack being sufficient to normally maintain inner face of the pen barrelwith the flange 25 protruding through and extending beyond the slot 26. These parts, namely theplate 24 and the flange 25, therefore, comprise a depressible button which, as illustrated in these figures of the drawingryislocated adjacent the end of the barrel opposite the feed tube and the pen point end; It will now be readily understood tha-twhen' the cap 18 is removed 7 from this type of penfto uncover the pen point and is placed over the opposite end of the barrel,as shown in'Figs. 3 and 4,.itwill depress the flange 2 5 of the button, causing the plate 24 thereof to move inwardly and compress-the adjacent end of the ink sack 21. V The parts are so designed, as will furthermore be understood, that by thus compressing the inksack sufi'icient ink is caused to flow to the feed tube and pen point to adequately prime the same, -It willalso be iunderstojod that in removing-the cap from this end o'f'the' barrel the resiliency of the sack, together with the contents thereof, is normally sufiicient to ref tfuin thelblitttiil toit's initial *pios'ition in which th'e'plate'lies against the inner face of the barrel-and the flange extends beyond the same, as
clearly illustrated in Fig 2, thereby causing 5a: slight i'ezz'pansionof'vth'e sack and a resultant flow of ink from the feed tube and pen point into'the sack, this action obviously tending wkeep the pen point 'and thelpassa-ge or'passagesth'rough the feed tube-clean. v
' In the form oftlie invention as illustrated in Figs; and-6fit will be "s'een'that I may employ a plate 27 connected exteriorlyfor otherwiseto'the barrel and in -any suitable position by means of I rivets 28 "or other means; This plate-has connected thereto a spring arm 29 -which extends *through an opening 30 provided therefor inthe wall of the barrel 15 of the pen. Lying :within' the barrelan' d' between the same and the adjacent portionof'theink-sack' 2'l'there is a lever which is connected to the end of the spring arm in any suitable manner. "Oneend 'of'this lever is indicatediat" 31 and the oppOSl:f8,ellCl"'lt"32. Theend -32 of the lever is e'itende d to provide a fian-geor' button 33 that "normally projects through and beyond aslot 3% provided in the wall of the pen barrelfor thispurpose. These parts are so constructed that when the cap-'covers-the feedtube and pen point, or when afsocket covers these parts in the case of a desk fountain pen, the endof the capor socket engages the} flange 33 thereby depressing the same and moving the lever arm '31 to the position shown in the dotted lines in Fig. 6, thisa'ctio'u, of course, permittingtheadjacent portion of the sack .to expand to thereby draw ink from the feed tube section of the penpoi'nt into the sack, it being understood that'in the case of a desk pen the socket into which the pen fits is the'equivalent of the usual cap.
Obviously also when the cap is removed tion of the spring'29 moves the" lever arm '31 or the pen removed from the socket the acinwardly against the-adjacent portion of the sack 21 and sufli'ciently 'far'only to cause enough ink to flou "through the feed tubesection'16 to the pen' point to prime the same. When in this positioirthe'flange33 or button projects beyond the surface of the barrel *soas to be depressible when the cap or socket is again placed in position to'cover the feed tube section and pen point. It will furthermore be understood that the various types of constructionsas herein illustrated and described are now considered iao to be-the best forms of the invention but that other and equivalent Constructions may be employed without departingfrom the nature s and spirit of the invention; e p o I claim as my invention I 1. In a self-filling'fountain pen, a barrel,
- a a feed tube section, a sack secured to the feed tube section and lying within thebarrel, a
, penpoint secured in the feed tube section, a
cap normally adapted tocover the feed tube section and pen point'and-to be fitted on the opposite end of the-barrel, and abutton ex tending through the barrel and adaptedto be operated by the said cap to cooperate with the said sackin the normal use of the pen to force only suflicientwriting fluidto the pen point to prime the same. 1
2. In a self-filling fountainpen, a bar rel, a feed tube section, aksa-ck connected to the feed tube section and lying within the barrel, a pen point, a cap adapted normally to cover the feed tube section and pen point,
and mechanical meansoperative upon the removal of the cap for compressing the sack'to force a sufficient quantity of writing fluid therefrom to the pen point to prime the same.
7 3. In a self-filling fountain pen, abarrel, a feed tube section, a sack connected to the feed tube section and lying within the barrel,
a pen point, a cap adapted normally tocover the feed tubesection and pen point, a yieldin gly mounted lever normallymaintained in an initial position by the cap when in place to cover the feed tube sect-ion and pen point,
I extending through a slot provided therefor in the barrel tobe engaged by the cap when the same is in position to cover the feed tube section and pen point and to be operative when the cap is removed to compress the sack to thereby force a suflicient quantity of writing fluid therefrom to the said feed tube sec-' tion and pen point to prime the same. a
In self-filling fountain pen, a barrel, a feed tube section, a sack connected to the feed tube section and lying Within the barrel, a pen point, a cover adapted to receive the feed tube section and pen point, a yieldingly lmounted lever normally maintained in an initial position by the said cover when the feed tube section and pen point are within the same and adapted uponthe removal of the feed tube'section and pen point to com- 'g-IFOSS the sack to force a sufiicient quantity a slot rovided therefor in the barrel the of writing fluid therefrom tothe pen point i to: prime the same.
rel, a pen point, a cover adapted to receive attached tothe barrel, and a lever secured to the spring having an arm extending through lever adapted to be disengaged from the said" 6. Ina self-filling fountain pen, a barrel, a feedtube section, a sack connected tothe feed tube section and lying within the barthe feed tube sect-ion andpen point, a spring covenwhen 'thefee'd tube section and pen point are removed, therefrom whereby'the lever compress the sack to therebyforce a sufficient quantity of writing fluid from thesaclr to the feed tube section and pen pointfor priming the same.
0 I 7. In a'self nlling fountain pen, a cap, a
barrel, a fed tube section, a pen point, a sack extending fromthe pen point section and lyingwithin the barrehand a button having a part lying-between the said sack and the barreland another part extending through the circumference of the barrel to beautomatically operative in the use of the pen by placing the on the barrel thereby depressing the sack to forceonly sufficient writing fluid to the pen pointto prime the same. o
8. In a self filling fountain pen, a cap, a barrel, a feed tube' section, a pen point, a' sack extending from the pen point section and lying within the barrel, anda button having a part lying'between the said sack and the barrel and another part extending through the circumference of the barrel to be automatically operative in the use of the pen by placing the cap on the end of the barrel thereby depressing the sack to force'only sufficient Writing fluid to the pen. point to prime the same, the movement of the said button being determined by its projecting surface beyondthe outer surface ofthe circumference of the barrel.
9. In a self filling fountain pen, acap, a barrel, a feed tube section, a'pen point, a sack Within thebarrel for containing the writing fluid, and means automatically operative to withdraw the Writing fluid from the pen'point afterthe pen has been used.
10. In a self filling: fountain pen, a barrel, a feed tube section, a sack connected to the feed tube section and lying within the barrel, a pen point, a cap adapted to position on the end of the barrel duringthe normal operation of the pen, mechanical means operative upon placing the cap over the pen point and feed tube section to permitthe sack to expand thereby withdrawing the writing fluid from the pen point into the same,
Signed by me this 30th day of July, 1929,
' SAMUEL SUMMER.