US3838864A - Mechanism for removing ink from ink containers - Google Patents

Mechanism for removing ink from ink containers Download PDF

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Publication number
US3838864A
US3838864A US00299935A US29993572A US3838864A US 3838864 A US3838864 A US 3838864A US 00299935 A US00299935 A US 00299935A US 29993572 A US29993572 A US 29993572A US 3838864 A US3838864 A US 3838864A
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US
United States
Prior art keywords
ink
plunger
container
ink container
flexible means
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.)
Expired - Lifetime
Application number
US00299935A
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English (en)
Inventor
H Gegenheimer
A Stad
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.)
Baldwin Gegenheimer Corp
Original Assignee
Baldwin Gegenheimer Corp
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 Baldwin Gegenheimer Corp filed Critical Baldwin Gegenheimer Corp
Priority to US00299935A priority Critical patent/US3838864A/en
Priority to GB2243573A priority patent/GB1411157A/en
Priority to FR7317211A priority patent/FR2203772B3/fr
Priority to JP5404573A priority patent/JPS5641426B2/ja
Priority to DE2324464A priority patent/DE2324464A1/de
Priority to IT24129/73A priority patent/IT988651B/it
Application granted granted Critical
Publication of US3838864A publication Critical patent/US3838864A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S277/00—Seal for a joint or juncture
    • Y10S277/91—O-ring seal

Definitions

  • ABSTRACT A mechanism for discharging ink from an ink container in combination with a plunger comprising in one instance a flexible O ring which is forced y the 377/32 plunger to engage the sides of an ink container and [58] Field of Search........
  • the ink cans are relatively small and in other instances the containers are considerably larger. Removing the ink from such containers can be a time consuming task which causes substantial contamination of the plunger. Most frequently, the ink is removed by placing a hole in the bottom of the container and utilizing a plunger to force the ink from the container. This procedure, although simple, has several drawbacks.
  • the ink cans are made by different manufacturers and are not so precisely manufactured that the diameter of the containers is the same for each size of can. Instead, there is a variation in the diameter of the container so that a precise snug fit with the plunger is not always possible. Where the fit is not precise, ink can flow between the plunger and .the sides of the container resulting in loss of ink and causing ink to be deposited on the plunger. The plunger becomes contaminated with such ink and it is necessary to remove the same from the plunger which is a time consuming and messy task.
  • the sides of the container are not straight but are tapered instead.
  • the diameter at the open end of the container is larger than the diameter at the closed end of the container.
  • the present invention includes in both embodiments means for assuring a sealing tit between the plunger and the side walls of the ink container.
  • a plunger is adapted to be in contact with a contracting means which contracts by reason of contact with the plunger to engage the sides of the ink container.
  • this means comprises an O-ring which is radially expandable and which when in the expanded condition can engage the side walls of the ink container and thereby prevent ink from either flowing between the plunger and the drum side walls or from being left in the container.
  • an Oring is used in combination with a garter spring.
  • the plunger during its downward path of travel will cause the expanding means to expand and go into contact with the sides of the ink container to thus insure that all of the ink is discharged from the ink container. Furthermore, since the expanding means is in contact with the container sides, ink cannot go between the expanding means and the container sides to contaminate the plunger.
  • Another object of this invention is to provide a means for insuring that all of the ink is removed from an ink container despite variations in the: diameter of the ink container.
  • a still further object of this invention is to provide a means for removing ink from an ink container which substantially eliminates the plunger from becoming contaminated.
  • the invention consists in the novel parts, constructions, arrangements, combinations and improvements herein shown and described.
  • FIG. 1 is a vertical sectional view showing in full line the position of the plunger at the beginning of the downward stroke and showing in dotted lines the position of the plunger at the bottom of the container.
  • FIG. 2 is a partial plan view taken along line 22 with certain parts broken away.
  • FIG. 3 is a plan view taken along line 3-3 of FIG. I with certain parts broken away.
  • FIG. 4 is a plan view of another embodiment of the invention.
  • FIG. 5 is a sectional view taken along line 5-5 0 FIG. 4.
  • the mechanism includes a plunger hub 6 to which is attached a plunger top plate 8 and a plunger bottom plate 10.
  • the plunger top and bottom plates are attached to the plunger so as to be removable therefrom, and asshown, are attached by screw means 12 and 45.
  • the top plate 8 extends from the hub a distance greater than the bottom plate 10, thus forming a recess.
  • the plunger plates are separated by spacers 14 held in position by screws 16. Surrounding the spacers 14 are rubber seals 18. t
  • contracting means are provided to maintain continuous contact with the sides of the container.
  • the contracting means includes a garter spring 20 made of any convenient spring material which is located in the space between the top and bottom plunger plates. Adjacent the garter spring is an O-ring 22.
  • the O-ring can be made of any convenient rubber or plastic material.
  • the O-ring In order that the O-ring can expand and contract, it is split as shown in FIGS. 2 and 3 with a collar 24 holding the split ends of the O-ring together.
  • the O-ring In FIG. 2, the O-ring is shown in its expanded position and in FIG. 3 the O-ring is shown in its contracted position.
  • a plastic sheet 25 which extends across the container to protect the plunger parts from ink contamination.
  • the garter spring 20 and O-ring 22 are in their expanded position when the plunger begins its descent as shown in full line, FIG. 1 and FIG. 2.
  • the garter spring thus has forced the O-ring into engagement with the side wall of the container.
  • the outward pressure of the garter spring causes the O-ring to be maintained in engagement with the side walls of the ink container.
  • FIG. 3 when the plunger has descended to the bottom of the container thus forcing all of the ink through the outlet 26, the O-ring is in its contracted position.
  • FIGS. 4 and 5 Another embodiment of the invention is shown in FIGS. 4 and 5.
  • This embodiment of the invention is particularly adapted for use with ink containers where the sides of the container are straight although the diameter of such ink containers may range from container to container.
  • the plunger hub 30 is attached to a plunger plate 32 by screw means 34.
  • the plunger plate 32 is a one-piece member which is cut away or inwardly tapered at its outer end 36.
  • the cutaway or tapering of the outer portion of the plunger forms a pocket or recess which can receive an O-ring 40.
  • the O-ring can be made of any convenient rubber or plastic material.
  • This form of the invention also includes a plastic sheet 42 as described above which protects the plunger parts from contamination.
  • the combination of the tapered end of the plunger and the flexible O-ring insures continuous contact with the sides of the ink container even though there may be slight variations in the diameter of such containers.
  • a device for removing ink from containers having varying dimensions and a discharge aperture therein comprising:
  • a reciprocal plunger having an outside diameter approximately equal to the inside diameter of said ink container
  • flexible means positioned within said outside d. said flexible means being radially expandable in response to the resistance of the ink so as to be maintained in sealing engagement with the side walls of the ink container as the plunger descends to force the ink from the ink container thereby causing discharge of the ink from the ink container through said aperture;
  • a flexible sheet-like material positioned between the plunger and the ink to protect the ink from contamination.
  • a device for removing ink from containers having tapered side walls and a discharge aperture therein comprising:
  • a reciprocal plunger having an outsie diameter approximately equal to the inside diameter of said ink container;
  • said plunger having a pair of spaced apart plates forming a recess, therebetween, at the outer periphery of said plunger;
  • flexible means positioned within said recess, said flexible means comprising an inner garter spring and an outer O-ring said flexible means being radially expandable in response to the resistance of the ink so as to be maintained in sealing engagement with the side walls of the ink container as the plunger descends to force the ink from the container thereby causing discharge of the ink from said ink container through said aperture.
  • a device for removing ink from a container having a discharge aperture therein comprising:
  • a reciprocal plunger having an outside diameter approximately equal to the inside diameter of said ink container
  • said plunger having a tapered outer portion forming a recess in the outer periphery of said plunger

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
US00299935A 1972-10-24 1972-10-24 Mechanism for removing ink from ink containers Expired - Lifetime US3838864A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US00299935A US3838864A (en) 1972-10-24 1972-10-24 Mechanism for removing ink from ink containers
GB2243573A GB1411157A (en) 1972-10-24 1973-05-10 Plunger or piston device for removing ink from ink containers
FR7317211A FR2203772B3 (https=) 1972-10-24 1973-05-11
JP5404573A JPS5641426B2 (https=) 1972-10-24 1973-05-15
DE2324464A DE2324464A1 (de) 1972-10-24 1973-05-15 Vorrichtung zum ausbringen von druckfarbe aus einem druckfarbenbehaelter
IT24129/73A IT988651B (it) 1972-10-24 1973-05-15 Meccanismo per rimuovere inchio stro da contenitori di inchiostro

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US00299935A US3838864A (en) 1972-10-24 1972-10-24 Mechanism for removing ink from ink containers

Publications (1)

Publication Number Publication Date
US3838864A true US3838864A (en) 1974-10-01

Family

ID=23156944

Family Applications (1)

Application Number Title Priority Date Filing Date
US00299935A Expired - Lifetime US3838864A (en) 1972-10-24 1972-10-24 Mechanism for removing ink from ink containers

Country Status (6)

Country Link
US (1) US3838864A (https=)
JP (1) JPS5641426B2 (https=)
DE (1) DE2324464A1 (https=)
FR (1) FR2203772B3 (https=)
GB (1) GB1411157A (https=)
IT (1) IT988651B (https=)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5370403A (en) * 1992-12-16 1994-12-06 Durametallic Corporation Non-contacting face seal
EP0943583A1 (de) * 1998-03-16 1999-09-22 Robatech AG Verfahren und Anlage zur Abgabe einer viskosen Masse
EP1314650A1 (de) * 2001-11-22 2003-05-28 Polarcup Gmbh Kartusche und dazugehöriger Kolben

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1227418B (it) * 1988-07-22 1991-04-09 Colorama S P A Dispositivo per lo svuotamento totale di contenitori di grandi dimensioni per inchiostro a basso grado di scorrevolezza.
US4978042A (en) * 1989-04-17 1990-12-18 Kenneth Fidler Ink feeder for a lithographic press
DE10212882A1 (de) * 2002-03-22 2003-10-23 Ludwig E Betz Gmbh Druckmaschi Vorrichtung zum Befüllen eines Farbwerkes einer Druckmaschine mit Farbe

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1517593A (en) * 1923-10-23 1924-12-02 Prest Air Corp High-pressure piston
US3100648A (en) * 1960-11-17 1963-08-13 Consolidation Coal Co Fluid seal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1517593A (en) * 1923-10-23 1924-12-02 Prest Air Corp High-pressure piston
US3100648A (en) * 1960-11-17 1963-08-13 Consolidation Coal Co Fluid seal

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5370403A (en) * 1992-12-16 1994-12-06 Durametallic Corporation Non-contacting face seal
EP0943583A1 (de) * 1998-03-16 1999-09-22 Robatech AG Verfahren und Anlage zur Abgabe einer viskosen Masse
EP1314650A1 (de) * 2001-11-22 2003-05-28 Polarcup Gmbh Kartusche und dazugehöriger Kolben

Also Published As

Publication number Publication date
DE2324464A1 (de) 1974-05-02
GB1411157A (en) 1975-10-22
FR2203772B3 (https=) 1976-04-23
JPS5641426B2 (https=) 1981-09-28
FR2203772A1 (https=) 1974-05-17
IT988651B (it) 1975-04-30
JPS4973215A (https=) 1974-07-15

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