With Sealing Cap Patents (Class 401/213)
-
Patent number: 4765767Abstract: A clip assembly for an elongated instrument which includes a base portion, a resilient elongated member extending from the base portion and means extending from the base portion dimensioned for insertion into an aperture defined by the elongated instrument for snap-locking engagement therewith and attachment of the base portion thereto. In its preferred form the elongated instrument is a pen which includes a body member having a reservoir of writing medium and a writing tip, a cap member configured and dimensioned for mating engagement with the body member; and a clip. The clip includes a base portion, a resilient elongated member extending from the base portion; and means extending from the base portion configured and dimensioned for insertion into an aperture defined by the body or cap member of the writing instrument for snap-locking engagement therewith and attachment of the base portion thereto.Type: GrantFiled: August 1, 1985Date of Patent: August 23, 1988Assignee: BIC CorporationInventors: William E. Marynissen, Thomas T. Beeson, Thomas G. Snell
-
Patent number: 4738558Abstract: A ballpoint pen which does not require use of a separate cap member is constituted in the form of a linkage of four levers which form a holder. At least one of the four levers is formed to be hollow so as to receive a writing element therein; and the front portion of said writing element projects out of the end of one part of a given connected piece of one of four connecting bodies firmly fitted into an opening portion of each end of the four levers. A concave portion is provided in a second part of the given connected piece for receiving the front portion of said writing element when the ballpoint pen is in closed pen condition. The tip of each lever is joined to the tip of an adjacent lever by a hinge element.Type: GrantFiled: June 10, 1986Date of Patent: April 19, 1988Assignee: Hiromori Industrial CompanyInventor: Junji Hiromori
-
Patent number: 4732504Abstract: A flat flexible ballpoint pen is formed from two foil strips which are bonded together along their peripheries except for one end through which the writing cartridge is inserted. A case also formed from flexible strips in a similar manner can accommodate the body carrying the cartridge.Type: GrantFiled: September 12, 1986Date of Patent: March 22, 1988Assignee: Design Machine S.N.C. di Adalberto Brunetti e Danilo TelliInventor: Rolando D. Telli
-
Patent number: 4717277Abstract: A method for the production of a writing point for liquid ink by utilizing a tube (5) of small internal diameter and a writing point which is produced thereby are proposed. In such a case, axially extending ink channels (3) are provided in the internal wall of the fixed tube (5) having an internal diameter which substantially corresponds to the diameter of a ball (1), said channels (3) extending to the free end of the tube (5) and being spaced from one another. A circumferential, annular recess (9) is formed in the tube (5) at a distance from the free end of said tube, and the ball (1) is inserted into the free end until it abuts against the recess (9). Subsequently, the free edge of the tube (5) is inwardly flanged, and a substantially cylindrical ink conductor (4) is inserted into the remote end of the tube and partially overlapped by the ink channels (3).Type: GrantFiled: July 9, 1986Date of Patent: January 5, 1988Inventor: Rudi Hutt
-
Patent number: 4712937Abstract: The plotter stylus has a writing point (10) which is connected to the ink cartridge (50) via the ink duct (40). The ink duct (40) is surrounded by a pressure compensator (20) and connected thereto. In the pressure compensator a compensator element (21) is provided with annular chambers (23) which absorb surplus ink emerging from the ink duct (40) in the case of temperature or pressure increases. The annular chambers have no capillarity for the ink. Air is introduced via the air inlet orifice (28) located above the chambers (23). The ink cartridge (50) is exchangeable.Type: GrantFiled: April 9, 1985Date of Patent: December 15, 1987Assignee: Schmidt Feintechnik GmbHInventors: Rolf Schmidt, Roland Schneider
-
Patent number: 4702633Abstract: A multicolor writing instrument consists of two individual writing implements which respectively contain a ball point pen refill. The implements are identical in construction with each having an elongated grip portion and a shoulder extending laterally from the end opposite a writing stylus, the shoulders being provided with recesses for respectively and sealably receiving the writing stylus of the other implement when the two implements are connected together in a storage condition.Type: GrantFiled: September 23, 1980Date of Patent: October 27, 1987Assignee: The Parker Pen CompanyInventor: Gunther Schmidt
-
Patent number: 4653949Abstract: A writing instrument having a main body housing a movable, spring-biased sliding member bearing a writing element. The main body is pivotable about the in-turned ends of wires attached to and depending from an overlying cap/actuator. In one pivot position the main body is acted on by the cap to cause the point of the writing element to protrude out of the main body against the urging of a spring. In a second pivot position the writing element is free to recede within the main body under the urging of the spring.Type: GrantFiled: November 5, 1984Date of Patent: March 31, 1987Assignee: Snappy s.r.l.Inventor: Pietro Larizza
-
Patent number: 4643605Abstract: A device for preventing the drying of the nib of a cartridge type pen, wherein a cartridge type ink container provided with a nib and used to directly contain ink or contain an absorbent loaded with the ink and to supply the ink to the nib through a relaying material, a vent hole is made in a nose cone of the ink container at a position close to the nib, packing is provided between the outside peripheral surface of the ink container and a penholder at the position close to the vent hole to prevent the vent hole from communicating with the outside air, the nib is provided with elastic material such as rubber and plastics in the cap, a blind hole is made in the lower end surface to insert the nib, the opening of the blind hole is shut at the front end of the nose cone of the holder or the front end of the nose cone of the ink container to cut off the communication of the inside of the blind hole with the outside air, and both used to cut off the communication of the vent hole with the outside air by means of thType: GrantFiled: January 12, 1984Date of Patent: February 17, 1987Inventor: Kousei Iwasaki
-
Patent number: 4627757Abstract: An indicating cap for a writing instrument has an insert with a blind passage adapted to fit over the tip of e.g. a felt or fiber tip pen or marker and axially movable in a sleeve forming a cap between two limiting positions. One of these positions is defined by a spring detent shoulder against which a shoulder of the insert abuts when the cap is withdrawn from the writing implement. When the cap is thrust properly onto the writing implement the insert is pressed into its second position in which a pin of appropriate color is visible through an end of the sleeve where the projecting pin can be protected by a hood or basket.Type: GrantFiled: January 14, 1985Date of Patent: December 9, 1986Assignee: Pelikan AktiengesellschaftInventors: Christoph Manusch, Gunter Scholz
-
Patent number: 4588320Abstract: A closure adapted to use on a roll-on dispenser and especially in connection with dispensing a liquid composition containing a major quantity of a liquid volatile silicone; said closure including a skirt depending from the inner surface of the roof of the closure which skirt serves as a sealing means when the closure is mounted on the roll-on dispenser, said skirt being provided with a plurality of supporting braces which prevent the flaring of the skirt when it is mounted in sealing engagement on the dispenser.Type: GrantFiled: October 27, 1980Date of Patent: May 13, 1986Assignee: Bristol-Myers CompanyInventor: Jack Weinstein
-
Patent number: 4573818Abstract: A modular writing instrument cap system is disclosed, in which each individual cap comprises an elongated tubular portion having an open end and a closed end. Near the closed end the cap is internally provided with a seal member adapted to seal with a writing instrument holding quick-drying ink. Near the open end, the tubular portion is internally provided with a catch for removably securing the cap on a writing instrument. Externally on the closed end, the cap is provided with a transversely-oriented open ended tubular barrel. The barrel is configured to receive an internally threaded sleeve, terminator rings and screws which thread towards one another through the rings into the opposite ends of the sleeve in order to hold the assembly together and secure a bail to it. The ends of the barrel and corresponding ends of the terminator rings are cooperatively notched to accommodate the legs of the bail.Type: GrantFiled: December 13, 1984Date of Patent: March 4, 1986Assignee: Platinum Pen Co., Ltd.Inventor: Kimio Kodera
-
Patent number: 4571106Abstract: A spherical ball applicator is provided to apply lotions to the human body for protection from the rays of the sun which may include an elongated body shape wherein one end of the applicator can be held to apply lotion from the other end to the more inexcessible areas of the body.Type: GrantFiled: January 9, 1984Date of Patent: February 18, 1986Inventor: Richard Scuderi
-
Patent number: 4568213Abstract: A pen adapted to be flat, when not being used for writing, can be used as a bookmark. The pen has three panels with one of the panels being connected to each of the other panels at opposite longitudinal edges by hinges, so that all three panels lie in the same plane when the pen is unfolded. One of the panels has a hollow reservoir for storing and dispensing ink, and a pen tip for dispensing the ink extends from the hollow reservoir. A pen tip cover extends from the panel which contains the reservoir and the outer panels are adapted with interlocking means to hold the pen in a prism shape when it is folded. The reservoir may be a three sided channel adapted to hold an ordinary pen refill. Opposite ends of the foldable pen may be flat, scalloped, triangular, pointed, or arcuate as a matter of aesthetic choice.Type: GrantFiled: January 11, 1985Date of Patent: February 4, 1986Inventor: Michael Money
-
Patent number: 4558966Abstract: A writing instrument having a closure cap assembly (1, 2, 3, 4 and 5) which can be placed in a sealing manner on the writing tip (20), whereby a positive engagement with an indentation in the writing tip is established via an elastically deformable finger (8), when the closure cap is in place on the writing tip. On the inner face of the arm (8), oriented toward the writing tip (20), at least one cam face (13) is located in a chord plane of the circle forming the closure cap opening. Whereupon a twisting of the entire mounted closure cap assembly (1, 2, 3, 4 and 5) brings the cam face (13) into engagement with a correspondingly formed wedge face (27) of the writing tip (20), so that the arm (8) is pivoted radially outward, and the closure cap can be removed.Type: GrantFiled: September 9, 1983Date of Patent: December 17, 1985Assignee: Koh-I-Noor Rapidograph, Inc.Inventor: Axel Mikuteit
-
Patent number: 4518273Abstract: An instrument for writing or drawing comprises a main body containing a writing element and a closing member pivotally connected to the former by resilient means allowing for a reciprocal rotation of the parts.Type: GrantFiled: May 5, 1983Date of Patent: May 21, 1985Assignee: Larizza & Scuratti s.d.f.Inventor: Pietro Larizza
-
Patent number: 4479732Abstract: A writing instrument such as a ball point or felt tip pen is provided with a seal member selectively engageable with the writing tip, the sealing member being movable from a position plugging the pen through hole to a position allowing the front end of the writing member to freely pass through the through hole for writing.Type: GrantFiled: July 2, 1982Date of Patent: October 30, 1984Assignee: Ancos Co., Ltd.Inventor: Kazuo Shimizu
-
Patent number: 4475837Abstract: A roll-on applicating package is described which is adapted to dispense products incorporating a liquid which has a very low surface tension. The liquid tends to penetrate mechanical seals and migrate to outer surfaces of ordinary applicating packages, creating an unsightly appearance and a negative tactile impression. The package of the present invention includes a means to establish a primary seal and includes, within its closure, an absorptive insert adapted to make continuous contact with a lip surrounding the applicating roller when the package is sealed. The insert is made of a non-hygroscopic material which possesses an ability to draw the liquid into its exterior by capillary action. Because of the preferential migration of the liquid into the insert, outer surface fouling of the package is obviated.Type: GrantFiled: April 14, 1982Date of Patent: October 9, 1984Assignee: The Procter & Gamble CompanyInventors: Arthur H. Dornbusch, Suzanne Benigni, Clarence R. Peace, Jr.
-
Patent number: 4469462Abstract: A writing instrument such as a ball point or felt tip pen is provided with a seal member selectively engageable with the writing tip, the sealing member being movable from a position plugging the pen through hole to a position allowing the front end of the writing member to freely pass through the through hole for writing.Type: GrantFiled: July 2, 1982Date of Patent: September 4, 1984Assignee: Ancos Co., Ltd.Inventors: Yasuyuki Hashimoto, Kazuo Shimizu
-
Patent number: 4459059Abstract: A cap device for securing an instrument, such as a ballpoint pen, to a web of flexible material. The device comprises a stem portion and a body portion which collectively define a first, second and third surface, with the first surface being disposed between the second and third surfaces. The surfaces are disposed in a spaced array to form a longitudinally extending gap which is serpentine in cross section and arranged for receipt of the web of material to bend the web about the surfaces to accomplish a substantially non-traumatic gathering of the web by the device. The device is slidable from a first position wherein it covers the tip of the writing instrument to a second position wherein the tip is exposed. Means are provided to ensure that the device does not slide off the instrument.Type: GrantFiled: April 5, 1982Date of Patent: July 10, 1984Inventor: Donald J. Greenspan
-
Patent number: 4455101Abstract: A writing instrument is described, which includes a writing assembly, a holder for an ink reservoir joined to the writing assembly, a removable barrel secured by rotation to the holder, and a removable cap which, in the closed position, fits over and protects the writing assembly. The cap and writing assembly are rotatably integrated in both rotational directions when the cap is in the closed position, so that removal of the barrel is effected simply by rotating the barrel relative to the cap without it being necessary to remove the cap and hold the writing assembly in the hand.Type: GrantFiled: June 29, 1981Date of Patent: June 19, 1984Assignee: S.T. DupontInventor: Jean G. Malamoud
-
Patent number: 4380403Abstract: A closure cap for a writing instrument such as a ink pen and the like has an outer generally cylindrical cap housing within which is a sealing sleeve having a closed end to close one end of the cap housing. A slide sleeve of a hard rigid material is retained against axial movement within the sealing sleeve. A closure member of a soft resilient durable material is axially slideable within the slide sleeve and is acted upon by spring means which may include a helical spring or axially extending resilient strips.Type: GrantFiled: January 14, 1981Date of Patent: April 19, 1983Assignee: J. S. Staedtler K.G.Inventors: Bernhard Endres, Klaus Glombitza
-
Patent number: 4359292Abstract: A cosmetic dispenser is disclosed which include a socket having a dispensing opening and three orthogonal axes, one axis extending through the socket and the other two lying substantially in the plane thereof. An applicator member is retained in the socket and has an upper portion extending exteriorly of the dispensing opening and a skirt portion substantially retained within the socket. The applicator is adapted for rotation about the three axes, but stop means limit rotation of the applicator member about the two axes in the plane of the socket. In this manner when rotation occurs about the axes of limited rotation, the dispenser is operable to feed cosmetic across the skirt portion to the upper portion of the applicator member for application to a surface to be treated with the cosmetic.Type: GrantFiled: December 29, 1980Date of Patent: November 16, 1982Assignee: The Gillette CompanyInventors: Harold R. Thompson, Ernest H. Duval
-
Patent number: 4326508Abstract: A manual massaging device having a ball-equipped plate which is centrally apertured for the receipt of a massaging oil containing container which has a dispensing ball at the top and which serves as a handle for the plate during massage.Type: GrantFiled: May 23, 1980Date of Patent: April 27, 1982Inventor: Robert Stauffer
-
Patent number: 4311403Abstract: A ball-point pen has an outer housing containing an ink reservoir tube with a writing tip supported in a nose piece in the shape of a cone which is press-fitted thereon. The nose cone is provided with a rear extension having a cylindrical outer wall and an inner concentric cylindrical wall having a central through bore that receives the writing tip. The cylindrical walls define an annular space therebetween that has a bottom seat. The ink reservoir tube is provided with a central ink passage and the end of the tube is received in the annular space with the inner cylindrical wall of the nose piece received within the ink passage whereby the passage and the bore are in communication. The elements are sized so that the reservoir tube is press-fitted on the inner cylindrical wall of the nose piece and the outer cylindrical wall exerts a radially inwardly biasing force against the reservoir tube to maintain the reservoir tube tightly wedged against the inner cylindrical wall.Type: GrantFiled: March 26, 1980Date of Patent: January 19, 1982Assignee: National Pen CorporationInventor: Tom Liguori
-
Patent number: 4302121Abstract: A barrel for a ball-point pen is formed with three concave surfaces extending along the length thereof. Such a construction facilitates the firm holding of the pen barrel in an untiring manner by the thumb, forefinger and middle finger of the hand of the user. To reduce the cost of the manufacture of the pen, the ink is contained in a hole extending through the longitudinal center of the barrel.Type: GrantFiled: October 19, 1979Date of Patent: November 24, 1981Inventor: Jung S. Kim
-
Patent number: 4221495Abstract: A roll-on type applicator assembly including a ball-type plastic fitment secured to the collar of a liquid dispensing container, and a closure therefor. The fitment includes an integrally formed sealing ring which constitutes a sharp rim formed at the intersection of a pair of angled annular faces. The applicator ball is supported in the fitment by means of an annular array of spring plates which bias the applicator ball upwardly of and out of contact with the sealing ring when the cap is removed from the container.Type: GrantFiled: January 29, 1979Date of Patent: September 9, 1980Assignee: W. Braun CompanyInventors: Morris Braun, George B. Spransy
-
Patent number: 4221494Abstract: A roll-on applicator including a fluid container surmounted by a fitment of a plastic composition and retaining an applicator ball. A closure cap, detachably secured, constitutes a cover for the fitment. With the cap removed and the applicator assembly in a functional, liquid-dispensing attitude, the applicator ball is biased upwardly by a pair of coplanar, horizontally extending, parallel spring bars integrally formed with and spanning the ball-holding fixture, the bars bridging the fixture and supporting the ball to establish an annular fluid flow communicating passage between the applicator surface of the ball and the interior of the dispensing container.Type: GrantFiled: January 11, 1979Date of Patent: September 9, 1980Assignee: W. Braun CompanyInventor: Nicholas W. Kachur
-
Patent number: 4168128Abstract: An improved dual-seal, wide-surface roller-type dispensing package combination for cosmetics and the like. A wide-surface dispensing roller is held in place in a fitment which is adapted to be attached to the finish portion of a container for the product to be dispensed. The dispensing roller is allowed to revolve within the fitment to facilitate uniform dispensing and application of the contents of the container. The total package is completed by a closure which is adapted to snap into engagement with the container. A primary seal is formed between the dispensing roller and the fitment upon application of the closure. The closure also includes a quantity of resilient material, such as a foamed polymer, positioned to contact the dispensing roller and the fitment to form a secondary seal to prevent leakage of product when the closure is placed into engagement with the container.Type: GrantFiled: November 21, 1977Date of Patent: September 18, 1979Assignee: Owens-Illinois, Inc.Inventors: William E. Fillmore, George V. Mumford
-
Patent number: 4168129Abstract: A closure cap which is held on writing instruments by a permanent magnet connected to the cap. The permanent magnet is arranged near the closed end of the cap, has a nearly cylindrical cross section, and has pole shoes on its pole faces, the free ends of the pole faces engaging ferro-magnetic annular parts of the writing instrument when the cap is placed on the latter.Type: GrantFiled: February 22, 1977Date of Patent: September 18, 1979Assignee: Montblanc-Simplo GmbHInventor: Gunther Herrnring
-
Patent number: 4164377Abstract: An improved, dual-seal, ball-type dispensing package combination for cosmetics and the like. A dispensing ball is held in place in a fitment which is adapted to be attached to the finish portion of a container for the product to be dispensed. The ball is allowed to move freely within the fitment to facilitate uniform dispensing and application of the contents of the container. The total package is completed by a closure which engages threads on the exterior of the finish portion of the container. The closure, fitment, and ball cooperate to create a seal between the fitment and ball at two separate locations to prevent leakage of product when the closure is placed into full engagement with the container.Type: GrantFiled: October 17, 1977Date of Patent: August 14, 1979Assignee: Owens-Illinois, Inc.Inventors: Richard D. Lohrman, George V. Mumford
-
Patent number: 4140411Abstract: An improved, preassembled ball-type dispensing package combination for cosmetics and the like. A ball is held in place in a fitment which is adapted to be attached to the finish portion of a container for the product to be dispensed. The ball is allowed to move freely within the fitment to facilitate uniform dispensing and application of the contents of the container. The total package is completed by a closure which engages threads on the exterior of the finish portion of the container. The fitment and closure include engaging portions which are adapted to retain the fitment in a preassembled position within the closure for shipping and handling. However, when the combination closure, fitment and ball are placed in engagement with the container finish portion, the retentive engagement between the fitment and the closure may be overcome to allow the fitment and ball to remain on the container when the closure is removed.Type: GrantFiled: September 30, 1977Date of Patent: February 20, 1979Assignee: Owens-Illinois, Inc.Inventors: Paul W. Harbauer, Richard D. Lohrman, George V. Mumford
-
Patent number: 4080078Abstract: A dispenser suitable for dispensing flowable liquid adhesive is provided which comprises a squeezable reservoir body closed at one end and having an opening at the other end, an elongated, cylindrical, narrow bore nozzle attached to the opening to form an outlet, the wall of the reservoir body being generally cylindrical at least at that portion which is adjacent the nozzle, the nozzle and the cylindrical portion having a common longitudinal axis, a groove inclined at an angle to the common axis in the cylindrical portion of the reservoir body adjacent the nozzle or in the nozzle, a control cap which is mountable on the reservoir body and over the nozzle so that the nozzle projects through a corresponding close-fitting hole on the control cap which is sized to receive the nozzle, the control cap having an external surface suitable for spreading liquid adhesive adjacent the hole through which the nozzle projects and a locating stud disposed on the lower portion of the control cap sized to fit into the groove.Type: GrantFiled: June 25, 1976Date of Patent: March 21, 1978Assignee: Lingner & Fischer, GmbHInventor: Hans Halm
-
Patent number: 4050826Abstract: A liquid applicator which comprises a liquid storage container fitted with a shaped applicator means that is made of a non-flexible, non-deformable, sintered, porous synthetic plastic resin having a controlled porosity and having omni-directional interconnecting pores.Type: GrantFiled: February 11, 1976Date of Patent: September 27, 1977Assignee: Bristol-Myers CompanyInventors: Walter G. Berghahn, Jack Weinstein
-
Patent number: 4030844Abstract: A roll-on dispenser bottle for dispensing cosmetics, deodorants, and the like, in which a plastic ball is mounted in the mouth of a glass bottle and a separate resilient ball retainer is provided which extends from the neck of the bottle. A cap also is provided which contains an insert having a protuberance and a shoulder or shelf which act to constrict the retainer on the ball and press the ball into a seat in the mouth of the bottle when the cap is firmly in place on the neck of the bottle, so as to provide positive closure when the bottle is not in use.Type: GrantFiled: December 2, 1975Date of Patent: June 21, 1977Assignee: Del Laboratories, Inc.Inventors: Jack Lench, Luigi M. Ferrari
-
Patent number: 4021125Abstract: A ball type roll-on liquid dispenser provided with a generally spherical ball and relatively small supporting nibs supporting the ball for rotation. A restricted passageway is provided between the ball and neck of the container to meter the liquid contents of the container. A thin retaining ring for retaining the ball is also provided as well as a closure liner adapted to apply variable pressure to the thin retaining ring to control the flow of liquid from the container and to completely seal the container from the atmosphere.Type: GrantFiled: October 17, 1975Date of Patent: May 3, 1977Assignee: Bristol-Myers CompanyInventors: Walter G. Berghahn, Jack Weinstein
-
Patent number: 4002411Abstract: An improved ball dispensing package combination for liquid cosmetics and the like. A ball is held in place in a fitment which is attached to the finish portion of a container for the product to be dispensed. The ball is allowed to move freely within the fitment to allow dispensing. The total package is completed by a closure which engages threads on the exterior of the finish portion. The closure has an internal downwardly depending sealing ring which engages the upper rim of the fitment as the closure is tightened. Simultaneously, the lower portion of an internal cavity of the closure engages the ball at its maximum chordal dimension. The ball does not touch the upper portion of the internal cavity, so any material on the ball does not tend to stick to the closure.Type: GrantFiled: September 2, 1975Date of Patent: January 11, 1977Assignee: Owens-Illinois, Inc.Inventor: Paul W. Harbauer
-
Patent number: 3963914Abstract: A flashlight and writing implement combination wherein the device is interiorly illuminated, and ultimately conducts such illumination in either of two directions, depending upon on which end the cap of the implement is placed. The cap includes reflective means for reversing light-flow back through the light-conductive or translucent barrel, toward the end piece and to the writing tip itself, concentrically thereabout. Optionally, the cap is disposed on the reverse end, in which event the light is actuated to send illumination in the opposite direction, the device thereby serving as a flashlight. Aperture means may be provided the cap so that the usually provided clip can be depressed to actuate the pressure switch of the implement. The cap can be made of a resilient deformable plastic material so that by squeezing the same the pressure switch means of the implement may be actuated.Type: GrantFiled: April 9, 1975Date of Patent: June 15, 1976Inventors: Scott M. Browning, Gregory F. Klomp
-
Patent number: 3941488Abstract: A marker system that employs an erasing unit that can couple and uncouple readily from its marker to facilitate the use of specific chemical reagents to "erase" their associated indicator dye inks without the use of non-discriminating bleaches. This erasing unit or anti-marker marker can be mounted in the marker cap, alternately in the marker barrel or used as a separate erasing unit.Type: GrantFiled: July 10, 1974Date of Patent: March 2, 1976Inventor: David Maxwell
-
Patent number: 3941491Abstract: The cap of a fountain pen is releasably locked to the barrel by spherically arcuate projections in the bore of the cap engaging a groove in the barrel which is bounded by a circumferential sealing rib on the barrel in a direction inward of the cap when the latter is in the closed position. Three, equiangularly distributed, axial ribs in the cap guide the barrel during insertion of the barrel into the cap and bound capillary ducts in the assembled pen which collect condensate from the air chamber surrounding the nib and prevent contamination of the condensate with coloring matter from the ink. The sealing rib on the barrel engages a cylindrical face portion of the cap between the projections and the outer ends of the guide ribs.Type: GrantFiled: March 11, 1975Date of Patent: March 2, 1976Inventor: Otto Mutschler