US2453491A

US2453491A - Fountain pen

Info

Publication number: US2453491A
Application number: US565584A
Authority: US
Inventors: Carl J Cardin
Original assignee: Individual
Current assignee: Individual
Priority date: 1944-11-29
Filing date: 1944-11-29
Publication date: 1948-11-09
Anticipated expiration: 1965-11-09

Description

c. J; CARDIN FOUNTAN PEN i Nov. 9, 1948.

Filed NV. 29, 1944 Nov. 9, 1948. I cRDlN- FOUNTAIN PEN 2" sheets-sheet` 2 Filed Nov. 29. 1944 FITTYS.

Patented Nov. 9, 1948 UNITED STATES 4PATENT overl-lonN I 2,453,491 N q N a 2,453,491` FOUNTAIN PEN Carl J. Cardin,` Downers` Grove,.Ill.

Application' November 29, 1944, Serial No. 565,584

The present invention relates to fountain pens and the like, and more particularly to a fountain pen cap arranged to provide a positive joint between cap and barrel with the resulting pressure between these members always being. the same; l

not depending upon friction to maintain this joint and further to provide quicker application and removal than heretofore. l l

` In general fountain pens are provided with screw caps having at the interior a sealing cap portion adapted to engage the end of the fountain pen barrel. If the cap is not tightly screwed upon the barrel, the seal is imperfectresulting in accumulation of ink at the end of the barrel atthe point near the pen point where the penis to be heldby the ngers. Such caps are usually retained during the use of the pen at the other end of the barrel by frictional engagement. In order to provide adequate strength to prevent breakage of the barrel by this frictional engagement, it is customary to provide one or more metal rings about the cap. The most annoying disadvantage of a screw or friction joint is that the cap `and barrel become disengaged while being carried be-r cause they are only heldtogether `by friction. The pen point then comes in contact with the clothing causing an ink spot. If the pen is carried on a cord or chainthe barrel often becomes disengaged from the cap and is lost.

In order to overcome some of these objections,

it has been proposed to provide a cap for a fountain pen barrel which is retained in position by latching or locking means. In the past such attempted constructions have not found commercial favor because of various disadvantages either in use or in the cost of manufacture. In accordance with the present invention the above mentioned and other disadvantages are overcome by provid- 14` Claims. Cl. 120-1--42i01) ing a fountain pen cap which is latched orlocked i into position at either end of the pen so that a positive disengaging action must be used to rei lease the cap from its position at the end of the pen barrel. l

It, therefore, is an objectof the present invention togprovide an improved fountain pen structure having a cap that can be disengaged from the barrel only by positive manual action.

It is another object of the present invention to provide an improved fountain pen `structure whereby thecap may be engaged with or disengaged from the pen barrel more rapidly than in prior constructions; i

Still another object of the present invention is to provide in conjunction with this cap an improved pocket clip arrangement for retaining the t 2 pen in position on the attached.

Still another object of the present invention is to provide an improved fountain pen :structure having a positive locking action betweenthe bari rel andcap so that the pen may be carried by a chain or cord attached to the top of the cap or may be carried in a purse or bag withoutfear of` disengagement of the cap from the barrel.

Still another object of the present invention is to providean improved fountain pen cap structure which will have a predetermined degree of sealing action upon application of the cap to the pen for closing. t i

Other and further objects of the present invention subsequently will become apparent by reference to the following description taken in connection with theaccompanying drawing wherein` Figure 1 shows, principally in cross section, a fountain pen barrel and cap constructed in accordance with the present invention;

i: Figure 2 is a cross sectional view in the direction of the arrows along the line 2-2 of Figure `1;

Figure `3 is a crosssectional view in the direction of the arrows along the line 3-3 of Figure 1;

Figure 4 is an exploded positive View of the elements comprising the cap embodied in the present invention; i f `Figure 5 is a cross sectional view of the upper portion of the invention as seen in Figure 1 illus-` trating the initial unlocking action; l Figure 6 is a view similar to Figure 5 illustrating a subsequent action which permits `removal of the cap from the fountainpen barrel; Figure 7 is a view illustrating the gripping action of the pocket clip construction in conjunction with the locking clip; i Figures 8 and 9 show certain modifications `of a portion of the fountain pen barrel;

Figure 10 shows amodiled form of cap adapted i for use with a fountain pen and barrel .such as shown in Figure 1;` i i T t Figure 11 is a cross sectional view as seen in i the direction of the arrows along the line II--ll clothing to which it is 3 forms no part of the present invention, only such portions as are pertinent to the present invention have been shown in cross section. At the upper end of the barrel 23 a threaded portion 22 is provided for receiving a threaded end of a pen and feed carrying member 24. A suitable pen l point 2K2 and pen feed member 28 of any desired type of construction is mounted in the pen supporting or holder portion 24; The Yportion 24 has a taperedrsurface 2B which is adapted to be engaged bythe inner sealing cap portion of the outer cap as subsequently will become apparent..

The member 243 is provided with an annular un end portion 36 is secured to the tubular portion 34 by asuitable threaded arrangement 38, and

interposed between-the inner end of the tubular portion 34 and the end member 3B are a pocket clipflll and a resilient spring latching member 4-2. In the proximity of the annular undercut recess 32 the cap portion 34 is provided with an aperture 44150 that the inversely curved end or hook portion 4t of the spring latching and locking member 42 may extend inwardlyinto the interior of the cap and into engagement with the undercut portion of the annular recess 32 in the barrel 2t. The end member 36 of the fountain pen` capwis provided Witha cavity 48 partially closed by a plug 52 threadedly mounted therein. The plugs@ is provided with a 'circular opening 52 and an inner connecting recess 54 best shown in Figures 2 and 4. VThe recess 54is provided so that the (solid cylindrical portion 56 of an inner cap sealing member may beinserted in position. The sealing member adjacent the top of the cylindrical portion 56 is provided with a cap portion 58 and at the other end thev cylindrical portion iis v'providedwith an enlarged diameter portion Bconnected to a still larger diameter portion-62. The portions 6i)l and 62 are provided with a coaxial cavity 64 to accommodate the pen peint andY pen feed.4 `A suitable spring 6G is inter- Y posed between the plug member i! and the shoul-v der formed between the two portions ci! and 62 of the inner cap. The bottom edge of the inner cap` portion 62 preferably is bevelled slightly as at 63 so as lto engage the tapered portion 30 of the pen supporting member 24 of -the fountain pen barrel to provide a line contact seal and to provide a more gentle entrance of the pen point into the cavity 64 therefore diminishing chance of in jury to the pen point while engaging' the cap and barrel.

'From the upper portion of Figure 1 it will be seen that the latching member 45 is in engagement vwith the annular groove 32 so as to retain in position thecap of the pen relative to the barrel. In order to support the cap at the other endv of the barrel during normal use of the fountain pen, the barrel 2li may be provided with an end member lil supported by a threaded portion l'2witl1 respect to the end of the barrel 2t so that anV annular recess 'li having an undercut portion is provided for the same purpose as the annular recess 32 `atthe other end of the fountain pen barrelgVA Y In order to disengage the fountain pen "cap comprising the tubular member 34, and the end portion 36 from the fountain pen barrel 20, the fountain pen barrel is moved upwardly in the tubular section 34 so as to partially compress the spring 6B thus moving the top end 58 of the inner seal cap further up into the cavity 48. This action moves the lip of the undercut recess 32 up suiciently so as to be disengaged from the reversely formed end portion 46 of the latching and retaining spring member 42. In order to move the end vportion 4-6 of the latching spring member 42 outwardly away from the recess 32 ofthe fountain pen barrel 22 pressure is applied ""to the pocket clip 40 in the direction of the arrow v110mm'theproximity of the ball end 80 of the 'shown in Figure 6 so as to bring about an outward movement of the end 45 of the spring latching member 42. It will be noted that in Figure 1 the `spring memberr 42 is `provided with bent portions 1t and 18 providing an intermediate offset porfountain pen pocket clip 40. Pressure applied upon the pocket clip 40 causes the ball end to move Vtoward the cap 34 sopas to bring about a fleXure of the intermediate portion of the spring membery 4,2 with the portion 16 providing a ful-l crumbearing against the cap. This action forces the'hock'end 46 to shift about the fulcrum outwardly from engagement with the recess 32 of the fountain pen barrel 22 so that the pen may be withdrawn from its cap. After withdrawal from they cap, the other end of the fountain pen maybe inserted in the cap so that the latching member 446 will engage the recessed undercut groove '4 at the other end of the pen thus providingza fountain pen assembly having the proper balance and feel for writing, and the cap is positively attached to the barrel while the pen. is being used.

Since the pocket clip 40 is placed in alignment with the'spring latch-ing member 42 so that duringwdisengagement of the cap with the end of thief-barrel the pocket clip 40 operates to flex the latching member 42, further cooperation is obtainedbetween the pocket clip and the spring member 42 to provide improved clamping or gripn ping action of the pocket clip 40 with the fabric $2' of a pocketso `as to prevent accidental displacement `of the fountain pen. This structure and operation are illustrated by Figure 7 which shows the upper' end of the fabric 82v engaged by' a wedge shaped area between the pocket clip Mifand the spring locking member 42.

While the undercut annular recessed grooves 32j and 'I4-of the pen structure shown in Figure l have been made by integrally forming the lip from the adjoining material, other manners of construction may be employed. In Figure S the upper portion 24 adjoining the fountain pen barrel 22 is provided with a recess 33. A metal ring -84 'is' supported from an undercut portion of lthe member 24 so as to form the lip whi-ch is to be engaged by the reversely bent end portion 46-=of-the locking -spring 42. Still another form of construction is illustrated in Figure 9y wherein an annular groove 3| is formed, and two rings liliV and 88 are provided to form an undercut recess 35T. The rings 86 and 88, particularly for the smaller-'size pen barrels, have the advantage of providing greater strength and resistance to the wearing action of the hook portion 46 of the spring locking member 42 than is the case where the recess i-s formed by shaping the material from which the body of the pen is made. Figures 10 and 11 show a fountain pen cap. of a modified form wherein the main body portion 9U- is. fermed'with a large annular cavity 92 and a smaller cavity 94. The larger cavity 92aceommodates the outer diameter of the pen barrel, and the smaller cavity 94 accommodates thepen point and pen `feed portions of the fountain pen.

It will be noted that these two coaxial cavities are interconnected by a bevelled portion 96 so as to provide the line point contact seal and a more gentle entrance oi' the pen Vpoint into the small cavity heretofore described in connection with theembodiment 'inFigure 1. Theupper end of the cap body Si) is'provided with a cavity 98 having a threadedportion |46 for receiving a` plug |02 having a central aperture therein.

The central aperture accommodates a plug member |64 having a cap portion lllarranged adjacent the bottom `of the supporting plug |42.

The inner plug Illllextends above the top of the end of thebarrel body 96 and theplug |02. Iml mediately adjacent the `ball terminal 8U of the pocket'clip 4B, the spring locking member |08 is provided with bent portions ||4 and H6 provid-l ing the offset portion and fulcrum and so arranged that when pressure is applied on the ball 8|) together with the pressure exerted upon the plug |04, a downward and outwardmovement of the hook end H will be obtained.

Figure 12 shows another form of pen cap having a. tubular barrel portion ||8 provided with a plug |26 for securing in position the pocket clip 46 and the locking spring 42.` A movable sealing ring |22 is connected to a Sylphon bellows structure |24 which is attached to the bottom of the plug |20. The bellows structure |24 therefore constitutes a resilient member urging the inner sealing cap |22 against the end of the pen barrel. The inner portion of the bellows |24 also serves to receive the end of the fountain pen in a manner similar to the cavity 64 shown in `Figure 1. In order to release the cap shown `in Figure 12 the `same manual manipulations must be employed as described in the embodiment -shownlin Figure 1. i f

Figure 13 shows another embodiment in which the parts have been given reference characters corresponding to similar' parts shown in Figure l2. The cylindrical barrel portion Hll-isprovided with an end plug l2! having a depending portion |26 to` which is secured. a tube |23 of resilient The other end of the material such as rubber. resilient or rubber tube |28 is connected to a tubular sealing member |36. The space within the resilient cylindrical member |23 "accommodates the pen point and pen feed. The resilient member |24 urges the member |36 against the end of the pen barrel to provide the proper sealing action. To engage and disengage thecap shown in Figure 13 toor from the fountain pen barrelrequires the same manual manipulations heretofore described in connection with Figure 1.

In Figure 14 there is shown a fountain pen cap having a cylindrical tubular portion |32 provided with an end cap portion 34. the tubular `portion |32 `is a sealing cap member |36 resiliently biased outwardly by a` spring |38. The upper portion of the inner sealing cap |35 is offlesser diameter than the lower portion and is Mounted within i arranged to move within a recess |44 inthe upper cap member |34. The upper cap member |34 is provided. with two "coaxial bores |42 and `|44. A movable member comprising a cylindrical body |46 fitting within the bore |42 has a head portion |48 which ts within the recess |44 of the cap portion |34. The head portion |4601? the cylindrical body |46 is of lesser height than the depth of the recess |44 so that the position of the cap |48 will be indicative of the position of the recess 32 of the fountain pen barrel within the fountain pen cap. In order to disengage the fountain pen barrel and its` rece-ss 32 from the spring locking hook 45 the fountain pen barrel is moved upwardly against the action of the resilient spring |38 so that the cap member |48 isabove the upper end of the member |34 thereby indicating that the undercut portion of the annular groove 32 has been disengaged from the upper end of Vthe hook 46 of the locking spring 42. Thereafter pressure may be applied to the pocket clip 40 in the manner previously` described in connection with the operation of the embodiment in Figure 1 to cause thehook portion 46 to be moved out wardly from complete engagement with the groove 32 in the member 24 at the end of the fountain pen barrel 20.

The structure shown in Figure 14 operates to prevent a displacement of the cap relative to the barrel suicient to move the locking spring and the end of the hook 46 thereof to a position Where the locking spring could be removed from thc annular groove 32 on the barrel 2li. Thus if the penis being carried in the pocket and due to a bending or crouching action on the part of the wearer, pressure is applied to the top of the barrel to produce partial axial displacement, further movement of the barrel will be prevented when the top |48 of the plug or cylindrical body |45 is engaged by the wearers body. Thus when the top |48 is flush with the cavity |44 in the cap of the pen, further axial movement of the cap relative to the pen barrel is prevented and even if at any time pressure is also applied to the pen clip 40, no unlatching or unlocking action can be brought about. security of a locking action between the cap and the fountain pen barrel under these conditions.

A still further fountain pen cap structure is shown in Figures 15 and 16 wherein the cap has a cylindrical tubular portion `|54 closed at the top by a plug portion |52. Within the tubular por- `tion |56 is a slidable sealing cap member |54 rel opposite sides of the threadedfportion |58 for receiving a resilient spring member |62 best seen in Figure 16. The upper end of the sealing cap |54 `has a reduced diameter portion |64 provided with a head portion |66. The ends of the spring |62 are arranged to extend beneath the head |66 `so as to limit the outward action of the resilient spring |56 against the lower shoulder of the sealing cap |54. This manner of construction facili-` tates rapid and economical assembly of a cap of this type. `The operations required to disengage the latching hook 46 from the undercut annular `groove in` the fountain pen barrel are similar to the action heretofore described in connection with Figure 1.1. a Y p While for Ythe purpose `of `illustrating and describing the present invention,` certaipreferred Thus there is absolute` Suitableapertures |64 are provided at embodiments havebeen shown. in. the ,.drawlngs,

it is to be understoodthat .certainmodications 1. The combination comprising a fountain pen.

barrel having an undercut annular groove, an external cap adapted to be tted over the end of said pen and toY extendbeyond said groove,

' said cap being provided with an aperture inthe proximity of saidgroove when said cap .is iitted over said barrel, a. sealing cap slidably mounted within said external cap for engagement with the end of said pen barrel, resilient means mounted within said cap for urging said sealing cap against the end of said barrel, a connecting member to unite said external cap and said sealing member comprising a shaft and headed portion, said shaft operably connected to said sealing cap with said headed portion positioned externally of said cap, and an elongated spring catch carried by said external cap and having an end portion adapted to extend through said aperture for engagement with said groove.

2. The combination comprising a fountain pen barrel having an undercut annular groove, an`

external cap adapted to be fitted over the end of said pen and to extend beyond said groove, said cap being provided with an aperture in the proximity oi said groove when said cap is fitted over said barrel, a sealing cap slidably mounted within said external cap for engagement with the end of said pen barrel, resilient means mounted within said cap for urging said sealing cap against the end of said barrel, an laxial recess at the end of said external cap, said recess being provided with an axial aperture, a cylindrical member positioned in said recess through said aperture and secured to the end of said sealing cap, said cylindrical member having an enlarged portion positioned Within said recess vof said external cap to limit axial displacement of said external cap relative to said barrel by the appli-n cation of force on the end of said external cap,y

and an elongated spring catch carried by said external cap having an end portion adapted to thereof mounted adjacent the closed end of said closure and with the free end thereof reversely turned inwardly and positioned to extend through said aperture and into engagement with said locking means and having at leasta portion intermediate the ends thereof bentl outwardly and normally spaced from the adjacent surface of said closure whereby to maintain said reversely;

turned; .end in :engagement with. said, groove.-` and said outwardly bent portion gbeingshiftablein wardly. toward .the surface 1 of said; closureV with l.

an adjacent part of* saidjspringmember4 in en gagementtherewith .to provideza fulcrumgfory-efi fecting movement oi said reverselyl turned, end *i out of engagementwith.said;locking.meansas.

the Aeifective.lengtlifofgsaid springmember is ine creased.

4. A capfor, a Afountain pen barrel. comprising..Y

a-.tubular member closed at one end and ,adapted towtover said barrel,` said fountain pen barrel.

having anr undercutlockingshoulder,Y said cap having an aperture-in ,the proximity. of said shoul.L der. when; the 1 cap istted over said barrel, an.

elongated spring latching member` mounted at theclosed end of said cap` and havinga reversely; turned end portion positionedto extend'throughthe aperturein said cap forinterlocllzingengagementwithsaid shoulder and including an intermediate oiset portionfnormally spaced outward-L ly from the adjacent surface of said cap whereby.

to maintain the said'- reversely turned endportion in engagement 'with said shoulder, said off,-

set portion being shiftalole inwardly with the.

lower end thereof in contactwith said'cap to .pro-

vide ,a fulcrum whereby; said reversely turned-endl portion will shift outwardlyabout VVsaid fiulcrumVH andvout ofr interlocking engagement withsaidfshoulder as the `eflective length; of said-latchinggi member is increased;

5. A cap for a iountainpenbarrel comprising-f a tubular member closed at one end and adaptedy tociit over; said barrel, said fountain :pen barrel Y having an undercut groove, `said;capjhaving an.

aperturein `the:proximity` ofA said vgroove when the cap is tted over said barrel, an ,elongated` spring-latching member mounted at-therclosed.y

end of -said cap end having a reversely turned portion immediatelyabove said fulcrum and nor-A mally spaced outwardlyY from thev adjacent sur.`

face of said cap whereby to maintain the-reversely turnedend portionyin engagement withsaid groovefand means engageable with said offset portion toshift itheasame inwardly toward the adjacent surface of said cap whereby to increase,

the effective length of saidfspring `latching `member and to cause outwardl movement of said reversely turnediend portion about said fulcrum Aand out of engagement with said groove.

6. A cap for a fountain pen barrel comprising a olosedvtubular member adapted to iitthereover, 4said fountaingpen barrelhaving an runder-:'- cut annular groove, said cap* having an apertureadapted to register with saidgroovewhen said cap is tted over said barrel, an elongatedspringi latchingqmember` mounted .on .said cap 'and having `a reversely `turned end portion positioned so as` toyextend through said 'aperture for engage: ment with said groove,-said latching member being normallyspaced outwardly from said cap land including an inwardlybent portion intermediate the ends thereof providing a fulcrum when inen-f gagement withsaidy cap, an internal slidable sealing cap adapted lto seat against the Yend of said barrel, coiled spring Ymeans resiliently bias-- lng said i internal sealing :cap toward Asaid barrel,vr means forcausing-1 said'v spring:latching'member to bezmovedv axiallyfrelative to saidbarrel to dis-- engage said end'fportion'from theundercut por` `tion of said groove, and means cooperatinglwith said latching member above saidfulcrumand operable upon inward movementto shift said `end portion outwardly about said `fulcrum toward the said spring catch having an outwardly offset porj tion intermediate the ends thereof with a part thereof immediately below said offset portion providing a fulcrum when in engagementwwith said cap, and a pocket clip mounted on said external cap with the end thereof adjacent said olset portion and operable thereagainst to flex` said offset portion inwardly whereby to displace the end portion thereof longitudinally-tof` said barrel and transversely about said fulcrum upon relative axial movement of said spring catch relative to the barrel. i l

8. The combination comprising a fountain pen barrel having an undercut annular groove, la? cap adapted to be ntted over theend of said pen` and to` extend beyond said groove, said cap having an aperture adapted to be placed in registerwith j said groove, a sealing member slidably mounted within said cap for engagement with the end of said pen barrel, a resilient tubular member supporting said sealing member within said cap and biasing said member toward the end f said pen barrel, an elongated spring latching member mounted on said cap and having a reversely turned end portion positioned so as to extend through said aperture for engagement with said groove, said latching member having an `outwardly offset portion intermediate the ends thereof with a part thereof immediately below said offset portion providing a fulcrum when in engagement with said cap, and a pocket clip mounted in alignment with said elongated spring latching member with a portion thereof adapted to engage said offset portion for shifting the same inwardly to cause the end `of said spring latching member to shift outwardiy about said fuicrum and to be disengaged from said groove.

9. A cap for a fountain pen barrel comprising a tubular member closed at one end and adapted to t over said barrel, said fountain pen barrel having an annular groove with an overhanging lip, said cap having an aperture in the proximity of said groove when said cap is tted over said barrel, an elongated spring latching member on said cap and having a reversely turned end` portion positioned so as to extend through said aperture for engagement with the overhanging lip of said annular groove, the lower portion of said spring latching member normally lying adjacent the outer surface of said cap to provide a fulcrum and with a portion thereabove bent outwardly, a

and means mounted adjacent the top of said cap for moving said elongated spring latching member downwardly to a position whereby action of said pocket clip against said outwardly bent portion ilO will cause `the end of -said spring member to move about said fulcrum outwardly from'said capa r 1` 10. A cap for a fountainpen barrel comprising aclosed tube member adapted toiit oversaidbarrel, said fountain pen barrel having anundercut annular groove, said cap having anlaperturein the` proximity of said groove `when said caplis l fitted over said barrel, an elongated spring latchingimember mounted on said `cap-and having a reversely turned endwportion positicnedvsoas to extend `through the aperture in said cap for,` engagement with the `undercut portionpf said annular groove, said spring latchingmember having i a fulcrumportion lying adjacent said barreladja` cent the reversely turned end` andan outwardly oiiset portion ,thereabove,and, a` pocket clip `mounted in alignment with and overlying` said spring latching memberwfor selective` cooperation with said offset portion in response to radialpressureapplied to said clip to flex `saidoifset,por-- tion inwardly whereby to cause `theiend, of` said spring latching member .to` be moved `23901113, Said `fulcrurn and outwardly from said aperture.`

, 1l. ,Aicap for afountain` pen barrel` comprising a` closed `tubular member adapted to fit thereover,

said fountain penbarrel having an undercut ang nular groove, said cap havingan aperture adapted `to `register with said `groove,when saidycap, is

tted oversaid barrel, an elongated springllatohr ing member mounted on said capl and having areversely turned end portion positioned soyastofextend through `said aperture for engagementwith said groove, an linternal `slidable sealing. cap adapted .to seat againstthe end of saidgbarrel, coiled spring means resiliently biasing said internal sealing cap toward said barrel, said latching member having an outwardly bent portion above the end portion thereof and normally spaced outwardly from said cap, for causing said spring `latching member to be flexed automatically to engage said end portion in said groove, and means operable against the outwardly spaced portion oi' said latching member for causing said latching member to fulcrum against said cap and to be flexed inwardly whereby to disengage said end portion from said undercut annular groove and to move said end about the fulcrum toward the exterior of said cap.

12. rlhe combination comprising a fountain pen barrel having an undercut annular groove, a cap adapted to be tted over the end of said barrel and to extend beyond said groove, said cap having an aperture adapted to be placed in register with said groove, an elongated spring latchingI member mounted on said cap and having a reversely turned end portion positioned so as to extend through said aperture for engagement with the groove of said barrel, a sealing member slidably mounted within said cap for engagement with the end of said barrel. a resilient beilows member be` tween said cap and said sealing member to bias said sealing member against the end of said pen wardly whereby to cause the` end of said spring latching member to be moved about said fulcrum and outwardly from said aperture.

13. The combination comprising a fountain pen barrel having an annular recess `with an overfhan'gin'gxilip, .an external `cap" adaptedzto be `fitted oversther' end' of `said barrel and to extend beyond 'diecesssaid,caphaving an aperture. therein liefproximitynof saidrecesara sealing memz er slidably,mountedwithin'saidexternalcap for 1 agement with the end of said pen;barr'el, re-

sient means mounted within said'cap'forlurging Asaid@sezfaling memberVv against the-end of said barre yanelongate'dspring latching'membermount- 'eLonj-said cap and havinga reversely turned yend portion arranged to extend through said capaper- /tuiefr engagement with thelip of'sad annular recess' saidspring latching member having adjavcentuits lower portion a fulcrum engageabie with thefsurface of saidcapvand-having adjacent-itsv upperportion an outward o'iset portion spaced away'frorn'the-surfaceof said cap, and a pocket clipmounted on said cap to overlie the offset portion of :said spring latching member cooperating there'witllto engage the fabric adjacent the pock et of a garment bya Wedging action, said pocket vclip beingadapted y'when pressed inwardly against said spring latching member tocause inward r'flexing thereof and outward movement of the end 'portion-about said fulcrumto displace the reif'ersely'turned endfportion fromsaid recess.

lI4. Al cap forafountain pen barrel comprising aclosed tubular member'adapted to t over said lrrelfsa-id fountainpen barrel having an undercut annular groove, said cap having an aperture ii'ifthe` proximity-of said groove whenv said cap is tittedover-:said barrel, an elongated spring latchmember mounted on said cap andy having va r'e'ver-selyturned end portion Vpositioned so as vto :extend t 'throughthef aperture of fsaid .cap for env vga-gement withithe yundercut 'portion Aof vsaid Aannular-groove, said fiatchi-ng member khavingan intermediatexportion adaptedto engage said cap and provide a fulcrum tliereagain'stfandl an `out- Wardlyf'bent portion-'above said fulcrumspaced outwardlyffrom said cap, and a pocket clip mountn edzzonsaid capzinialignment with said elongated spring iatchingr member with the `free end there- .of :adjacent saidioutwardly bent portion. and adaptedzuponz inward movement thereof to cause saidfoutWardly/'bent portion to beflexed inwardly :andato move A they yreversely -turned end portion lofzlthez-latchng ,member outwardly about said ful- `crum-:as-said end *portion'and said pen barrel are moved Yaxially :relative to each other.

CARL J. CARDIN.

frmrnirnivces wenn "The:followingrreferences are of record in the `file io'f-this patent:

.UNITE'sTATEsiPATEN-s