CA2259397A1 - Valve arrangement for controlling a flow of fluid between two fluid chambers and writing implement provided therewith - Google Patents

Valve arrangement for controlling a flow of fluid between two fluid chambers and writing implement provided therewith Download PDF

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Publication number
CA2259397A1
CA2259397A1 CA002259397A CA2259397A CA2259397A1 CA 2259397 A1 CA2259397 A1 CA 2259397A1 CA 002259397 A CA002259397 A CA 002259397A CA 2259397 A CA2259397 A CA 2259397A CA 2259397 A1 CA2259397 A1 CA 2259397A1
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CA
Canada
Prior art keywords
tubing piece
valve arrangement
fluid
piece
further characterized
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
CA002259397A
Other languages
French (fr)
Inventor
Oliver Weiss
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of CA2259397A1 publication Critical patent/CA2259397A1/en
Abandoned legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61MDEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M25/00Catheters; Hollow probes
    • A61M25/0067Catheters; Hollow probes characterised by the distal end, e.g. tips
    • A61M25/0074Dynamic characteristics of the catheter tip, e.g. openable, closable, expandable or deformable
    • A61M25/0075Valve means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B43WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43KIMPLEMENTS FOR WRITING OR DRAWING
    • B43K5/00Pens with ink reservoirs in holders, e.g. fountain-pens
    • B43K5/18Arrangements for feeding the ink to the nibs
    • B43K5/1818Mechanical feeding means, e.g. valves; Pumps
    • B43K5/1827Valves
    • B43K5/1836Valves automatically closing
    • B43K5/1845Valves automatically closing opened by actuation of the writing point

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Pulmonology (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Mechanical Engineering (AREA)
  • Hematology (AREA)
  • Biophysics (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Pens And Brushes (AREA)
  • Lift Valve (AREA)
  • Check Valves (AREA)

Abstract

The invention concerns a valve arrangement for controlling a flow of fluid between a first and a second fluid chamber, the arrangement being provided with: - an elastomer material hose part (2), the outer side of whose wall is in contact with the first fluid chamber (5') and whose lumen (6) is connected to the second fluid chamber (9); - one or a plurality of continuous slots (11) in the wall of the hose part (2), which slots, in the non-deformed state of the hose part (2), are closed owing to the inherent restoring force of the elastomer material and can be opened by deforming the hose part (2); and, disposed on the hose part (2), an actuating part (10) by means of which the hose part (2) can be deformed to control the flow of fluid through the slots (11). A valve arrangement of this type can be used, for example, in a writing implement.

Description

DESCRIPTION
The invention concerns a valve arrangement for control of a fluid passage between a first and a second fluid chamber as well as a writing device equipped with it.
Basically, there is currently a requirement for valves that are miniaturized and can be constructed in a simple manner, due to the miniaturization that is taking place in many technical fields, which [valve] can be utilized, among other things, for control purposes in micropneumatics and microhydraulics.
Technologies relatinq to medicine and writing devices also require such valves.

A valve arrangement wi~h~n the s~pe of a cathet~r ~nstn~ction ac~rding to the prea~ble of patent cla~m 1 iS kna~n fran EP-A-250 891.

Th~rewith there is pmvided an elongated t~bing pie~, clo~ed at one end, which iS sl~yLl~:r~d by an ~nsert l~p to a ring area at the erx~.

A r~tary }~tton is positioned an a hand kncb, said rotary btltton being joined wi~h a stiletbD-like actuating strut in the lumen of the tubing piece, which in its ~ n proo~e~ to the free end thereof and is anchored there. By r~tation of the knob, the head of the ~lhing pie oe is twist~hle via the a~Lul~ing strut relative to the r~n~;~ing tubing piece so that the non s~Ll~ened area i5 tors~ in itself. Slot~, which are provided there, open due to this b~rsion and unblock fluid p~s~e bet~een the lur~ of the tibing piece and the outside spaoe.

qhe prior art arrangement i6 disadvantageous due to the fact that for producing tDr~ion of the non-sLr~.~thened p~rtion of the tubing piece, there must ~e provided a relatively expensive arrangement.

Especially two areas of the tub~ pieoe, namely, the sLl~n~U~ned area on the one h2nd and, on the other hand, the cap being rigid (firm) by themselves, m~st nevertheless be oon~ected t~ each oth OE via a flexible intf~ te piece in or~3er to enable torsion of this ir~t~i~te pi~oe ~ard act-~atir~ the v~lve. Fur~enrDre, rotatianal actuation of the actl~ating part for producir~ rsi~n is achievable only ~:tt~
an exE~sive kr~bllL~. h~r~le.

lh~s, ~n the c:ase of the prior art, the prabl~n is that a ~ralve arrangem~nt,~ose ~nstruction is relatively ex}~ensi~e, is also very carplicated to ac~tu.3te (operate).
In order to solve this problem, the invention concerns a valve device of the typed named initially with the following features:
-- a hose part of elastomer material, whose wall outer side stands in contact with a first fluid chamber and whose inside space or lumen is joined with a second fluid chamber, -- one or more penetrating slots in the wall of the hose part, which are to be closed in the underformed state of the part, due to the restoring force of the elastomer material inherent in the material, and which can be opened by deformation of the hose part, and - an actuating part on the hose part, by means of which, the hose part can be deformed in order to control the flow of fluid through the slot.
It is clear from the above combination of f~atures that a valve for the throughput control of gases and liquids that is to be actuated mechanically forms the basis for the subject of the invention. The two mentioned fluid chambers may CA 022~9397 1998-12-31 therefore be two closed volumes or also a supply space and its surroundings or atmosphere, as will be explained in the following in more detail on the basis of an example.
The hose part advantageously comprises silicone material. This reduces the production expense for the valve arrangement according to the invention, since silicone tubing can already be obtained in many dimensions and qualities as a commercially mass-produced application for the valve. Silicone is compatible with skin and tolerated by the body.
Most preferably, the actuating part is formed as a tube piece sitting in the lumen of the hose part, and ending in front of its slot region. This construction assures small actuating forces and a perfect discharge of the fluid passing through the slot that has been opened by deformation, from the first to the second fluid chamber.
The arrangement and the precise configuration of the slots in the hose part can be established each time oriented toward the application. It must only be assured that the slots are closed in the undeformed state of the hose part.
These must thus involve fine cuts and not coarse openings in the wall of the hosing part.
In order to obtain a response characteristic of the valve that is independent of the direction of deformation, it may be preferred to provide one or more peripherally-running series of slots in the hose part.

, CA 022~9397 1998-12-31 By a fluid-tight mounting of the hose part each time in front of its two ends, a clean attachment of the hose part as well as a separation between the two fluid chambers is obtained.
In summary, the following can be named as advantages of the valve arrangement according to the invention: Its corrosion resistance and very high chemical resistance, particularly against acids and bases - no metallic parts need to be used; its very small space requirement; and the small actuating forces. Further, the valve arrangement can be used in a broad temperature range. Not lastly, only those materials are used, which exclude a buildup of sparks, so that the valve arrangement can be utilized also in an environment that is at risk of explosion.
As a preferred application of the valve arrangement according to the invention, application in a writing device is provided for the regulation of the flow of ink between an ink reservoir of the writing device and its writing tip.
Relative to the claimed further development of the writing device with such a valve arrangement, in order to avoid unnecessary repetition, refer to the following description, in which the valve arrangement itself and a writing device provided therewith, including additional features, characteristics and advantages will be explained in detail on the basis of the attached drawings.
Here:
Figs. 1 and 2 show schematic views of the valve arrangement in closed and open position;

CA 022~9397 1998-12-31 .~ ; 4 Figs. 3 and 4 show an enlarged representation of the hose part in the unstressed and deformed state; and Figs. 5 and 6 show schematic longitudinal sections through a marking pen with a closed and opened valve arrangement.
Valve arrangement 1 according to the invention is shown in highly schematic form in Figs. 1 and 2. Its core piece is a short hose part 2 of silicone material, which is mounted in front of its two open ends 3, 4 in a fluid-tight manner in a housing part 5. Housing part 5 belongs to a first fluid chamber 5', in which a fluid, e.g., a liquid stands. Hose part 2 on the outer side of its wall is thus surrounded by the liquid in first fluid space 2 between the mounting places at the two open ends. Lumen 6 of hose part 2, by its two openings 7, 8, opens up into a second fluid chamber, which is designated in its entirety as 9 in Figs. 1 and 2 and is indicated by the broad-hatched surface. A tube piece 10 as an actuating part is inserted into lumen 6 of hose part 2 through one opening 7, and this terminates just before the region of slot 11 in hose part 2.
An example of the shaping and configuration of slot 11 is shown in Figs. 3 and 4. Three rows of peripherally running slots 11 are provided approximately in the middle with reference to the length of hose part 2. Slots 11 are microfine cuts, which run through the wall of the hose part.
Valve arrangement 1 is shown in closed position in Fig. 1. Slots 11 are closed due to the restoring force of its silicone è~astomer material inherent in the material residing in hose part 2, so that fluid found in housing part 5 (first fluid CA 022~9397 1998-12-31 chamber 5') with slight overpressure cannot enter through slot 11 into lumen 6 of hose part 2.
Upon action of a force F onto tube piece 10 projecting from hose part 2, hose part 2 is deflected and deformed, as can be seen in Fig. 2. Slots 11, which lie on the extended side of hose part 2, are opened by this deformation and fluid or gas can pass over from housing part 5 (first fluid chamber 5') through the slots into lumen 6 of hose part 2 and from there through openings 7,8, into second fluid chamber 9. The mentioned opening of slots 11 is exaggerated in Fig. 4, but presented so that it is obvious.
If force F no longer acts, then hose part 2 again becomes straight and slots 11 are closed all around. The fluid connection between first fluid chamber 5' and second fluid chamber 9 is thus again interrupted.
A practical example of the application of the valve arrangement presented in Figs. 1 through 4 is shown in Figs. 5 and 6. This involves a marking pen M
shown schematically in section, which has a conventional cylindrical or flattened tube-shaped apparatus housing 12 with conically running housing tip 13.
Housing 12 surrounds a reservoir 14 for the writing fluid of the marking pen.
An opening 15 is provided in housing tip 13, in which [opening] one end 7 of hose part 2 is mounted by its outer side in a fluid-tight sealing manner. Hose part 2 arranged coaxially to the longitudinal axis of apparatus housing 12 is further arranged by its other end 4 in an apparàtus holding element 16 in housing 12, which has passage openings 17 for the writing fluid. Opening 8 of hose part 2 Iying at end 4 is tightly sealed by a plug 18 in the form of a silicone cord piece.

CA 022~9397 1998-12-31 Writing tip 19 of marking pen M is inserted by its shaft 20 into opening 7 Iying opposite, which lies outside apparatus housing 12. Writing tip 19 itself forms the actuating part for valve arrangement 1, whereby its shaft 20 reaches further up to just in front of slots 11 in hose part 2. Writing tip 19 with shaft 20 is further produced from fiber material, as is usual for marking pens M for transport of writing fluid based on capillary action.
Opening 21 of the apparatus housing turned away from housing tip 13 is moreover closed by a cap 22, in which a pressure equilibration element 23 in the form of a hydrophobic, semipermeable membrane is inserted. The latter is welded ultrasonically with cap 22.
The control of the flow of ink in marking pen M will be explained on the basis of Fig. 6:
If marking pen M is placed on a sheet of paper 24, as is indicated very schematically in Fig. 6, and then force F is introduced onto writing tip 19, hose part 2 will deflect from shaft 20 of writing tip 19 and deform. In this way, slots 11 in hose part 2 open, so that the !iquid present in reservoir 14 (first fluid chamber) can enter into lumen 6 of hose part 2 and will be transported via capillary forces into writing tip 19 onto sheet of paper 24. According to the above terminology, the latter forms practically the second fluid chamber. As soon as marking pen M
is removed from the substrate and force F is removed, hose part 2 again becomes straight and the flow of ink from resefvoir 14 to writing tip 19 is interrupted.

~ , CA 022~9397 1998-12-31 Finally, the advantages of the writing device according to the invention, as have been described above, are summed up as follows:
-- The regulation of the flow of ink is conducted by an uncomplicated, cost-favorable valve system.
-- The functional principle is applicable to many types of writing pastes and liquids, as well as for cosmetic fluids.
-- The tank content of the writing device is determined only by the housing size and is thus arbitrarily selected within certain limits.
-- More than 90% of the writing fluid can be utilized. From this results an essentially higher productivity with the same filling quantity in comparison to fiber storage systems.
-- The writing behavior is independent of the residual tank content.
-- The writing device is secure against shock, i.e., when dropped, there is no sudden appearance of writing fluid and associated blotches.
-- The writing device can be configured in a refillable manner.
-- The writing tip can be arbitrarily shaped ànd can be designed in an exchangeable manner, since it is inserted only into the hose part.
-- The writing device is optimally recyclable, since the individual parts are easy to dismantle and separate, based on the simple construction.

.. . . . .

Claims (10)

1. A valve arrangement for control of a fluid through-flow between a first and a second fluid space with - a tubing piece (2) of elastomer material, whose outer wall side is in contact with the first fluid space (5', 14) and whose lumen (6) is joined with the second fluid space (9, 24), - one or more through slots (11) in the wall of the tubing piece 2), which is (are) closed when the tubing piece (2) is in an undeformed state due to the restoring force inherent in the elastomer material, and which can be opened due to a deformation of the tubing piece (2), and - an actuation part (10,19) on the tubing piece (2), characterized in that said tubing piece (2) can be deformed by means of a force (F) applied by radical deflection over an actuation part (10, 19) for control of fluid flow through the slot (11) transverse to said tubing piece (2).
2. Valve arrangement according to Claim 1, further characterized in that flexible tubing piece (2) is comprised of silicone material.
3. Valve arrangement according to Claim 1 or 2, further characterized in that the actuation part is formed as tube piece (10) sitting in lumen (6) of flexible tubing piece (2) ending in front of its slots (11).
4. Valve arrangement according to one of Claims 1 to 3, further characterized in that one or more peripherally running rows of slots (11) are provided in flexible tubing piece (2).
5. Valve arrangement according to one of Claims 1 to 4, further characterized in that flexible tubing piece (2) is mounted in a fluid-tight manner each time in front of its two ends (3,4).
6. Recording device with a valve arrangement for regulating the flow of ink between an ink reservoir (14) and a recording tip (19), the valve arrangement being provided with an actuation part (10, 19) on the tubing piece (2), by means of which, via an applied force (F), said tubing piece (2) for control of fluid through-flow is deformable owing to the slot (11) being transverse to the tubing piece (2).
7. Recording device according to Claim 6, further characterized in that flexible tubing piece (2) of valve arrangement (1) is mounted in device housing (12) in such a way that one end (3) of flexible tubing piece (2) opens outwardlyfrom device housing (2) and its mouth opening (7) is provided with recording tip(19), such that second end (4) of tubing piece (2) is closed and that the part of flexible tubing piece (2) provided with the one or more slots (11) and lying inside device housing (12) connects on its outer side with ink reservoir (14) of the recording device.
8. Recording device according to Claim 7, further characterized in that recording tip (19) is provided with a shaft (20) protruding into lumen (6) of flexible tubing piece (2).
9. Recording device according to Claim 8, further characterized in that shaft (20) terminates in the direct vicinity of at least one slot (11) of valve arrangement (1).
10. Recording device according to one of Claims 6 to 9, further characterized in that the end of flexible tubing piece (2) turned away from recording tip (19) is attached in a mounting element (16) inside device housing
CA002259397A 1996-07-03 1997-06-06 Valve arrangement for controlling a flow of fluid between two fluid chambers and writing implement provided therewith Abandoned CA2259397A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19626755A DE19626755A1 (en) 1996-07-03 1996-07-03 Valve arrangement for controlling a fluid flow between two fluid spaces and writing instrument provided with it
DE19626755.2 1996-07-03

Publications (1)

Publication Number Publication Date
CA2259397A1 true CA2259397A1 (en) 1998-01-15

Family

ID=7798798

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002259397A Abandoned CA2259397A1 (en) 1996-07-03 1997-06-06 Valve arrangement for controlling a flow of fluid between two fluid chambers and writing implement provided therewith

Country Status (8)

Country Link
EP (1) EP0910510B1 (en)
JP (1) JP2001501878A (en)
AU (1) AU3094097A (en)
BR (1) BR9710102A (en)
CA (1) CA2259397A1 (en)
DE (2) DE19626755A1 (en)
TR (1) TR199802780T2 (en)
WO (1) WO1998001307A1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19810217A1 (en) * 1998-03-10 1999-09-16 Oliver Weis Dispenser for liquid medicines, cosmetics, ink, text markers, perfume, general-purpose fragrances and cleaning agents
EP1171316B1 (en) * 1999-04-17 2002-10-16 Faber- Castell AG Applicator
DE19934445A1 (en) * 1999-07-26 2001-02-01 Oliver Weis Valve control has helical spring with ends, coils and interior, two fluid chambers, thrust bearing, and passages
DE29912647U1 (en) * 1999-07-26 1999-09-23 Weis Oliver Dispenser for toilet hygiene liquids
DE10041323A1 (en) * 2000-08-23 2002-03-07 Oliver Weis Pen-like applicator for applying liquids, in particular an ink pen or cosmetic applicator
DE10103437B4 (en) * 2001-01-25 2006-07-06 Schmidt Feintechnik Gmbh Writing and / or dosing device for ink

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE264882C (en) *
DE926054C (en) * 1950-07-13 1955-04-04 Ehrenreich Haeuselmann Fountain pen with writing tube mounted axially displaceably in the tip bore of the device holder and controlled flow of writing material
US2642041A (en) * 1951-01-18 1953-06-16 Miessner Inventions Inc Antileak fountain pen
FR1360234A (en) * 1963-03-18 1964-05-08 Ydev Sa Distributor-spreader container for glue and other viscous liquids
US4549879A (en) * 1983-05-03 1985-10-29 Catheter Technology Corporation Valved two-way catheter
US4737152A (en) * 1986-07-02 1988-04-12 Becton, Dickinson And Company Catheter assembly
DE4100644A1 (en) * 1990-01-20 1991-08-29 Schmidt Feinmech WRITING OR DOSING DEVICE
US5250034A (en) * 1990-09-17 1993-10-05 E-Z-Em, Inc. Pressure responsive valve catheter
DE4106839C2 (en) * 1991-03-04 1994-06-30 Suspa Spannbeton Gmbh Valve, especially for re-injecting a grout in the ground
JP2679918B2 (en) * 1992-02-17 1997-11-19 二郎 堀 Writing implement
ZA948098B (en) * 1993-10-18 1995-06-05 Gillette Co Liquid ink

Also Published As

Publication number Publication date
JP2001501878A (en) 2001-02-13
WO1998001307A1 (en) 1998-01-15
EP0910510A1 (en) 1999-04-28
TR199802780T2 (en) 1999-03-22
AU3094097A (en) 1998-02-02
DE19626755A1 (en) 1998-01-08
DE59702246D1 (en) 2000-09-28
EP0910510B1 (en) 2000-08-23
BR9710102A (en) 2000-01-11

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