US3249256A - Disposable tube dispensing device - Google Patents

Disposable tube dispensing device Download PDF

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Publication number
US3249256A
US3249256A US404413A US40441364A US3249256A US 3249256 A US3249256 A US 3249256A US 404413 A US404413 A US 404413A US 40441364 A US40441364 A US 40441364A US 3249256 A US3249256 A US 3249256A
Authority
US
United States
Prior art keywords
passageway
tape
pipette
tube
tube section
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
US404413A
Other languages
English (en)
Inventor
Erhard R Stern
Paul R Maestro
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.)
Cutler Hammer Inc
Original Assignee
Cutler Hammer Inc
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 Cutler Hammer Inc filed Critical Cutler Hammer Inc
Priority to US404413A priority Critical patent/US3249256A/en
Priority to NL6513228A priority patent/NL6513228A/xx
Priority to CH1410365A priority patent/CH440762A/de
Priority to FR35104A priority patent/FR1451665A/fr
Priority to SE13404/65A priority patent/SE324070B/xx
Priority to BE670999A priority patent/BE670999A/xx
Priority to DE19651598887 priority patent/DE1598887A1/de
Priority to GB44000/65A priority patent/GB1110757A/en
Application granted granted Critical
Publication of US3249256A publication Critical patent/US3249256A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L99/00—Subject matter not provided for in other groups of this subclass
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/02—Burettes; Pipettes
    • B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/02—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a plurality of sample containers moved by a conveyor system past one or more treatment or analysis stations
    • G01N35/04—Details of the conveyor system

Definitions

  • This invention relates to a device for automatically supplying disposable pipette tube sections for use in conjunction with a permanent pipette tube section in a machine whose continuous operation requires a different tube section during each machine cycle.
  • an attachment to and for cooperation with the machine disclosed in said copending application, for automatically locating disposable tube sections previously cut to a given length one after another in a position of alignment with the permanent pipette tube section, moving said permanent pipette tube section longitudinally into the bore of the disposable tube section thus aligned and withdrawing such disposable tube section from the magazine for use in a normal cycle of operation of the machine.
  • the improved mechanism contemplates a magazine in which individual disposable tube sections all of the same length are disposed preferably in the form of a roll with their corresponding ends in registry and attached to a tape at one side thereof.
  • the disposable tube sections are fed through a dispensing passageway associated with the magazine in a lateral direction by the application of tension to the tape to which they are attached, to a terminal position in the passageway where the disposable tubes are located one after another after disengagement from the tape. In the terminal position the tubes are in a position of axial alignment with the permanent pipette tube section.
  • Tension is applied to the tape to advance the disposable tube sections through the passageway by a spindle disposed parallel-with the disposable tube sections and about which the tape is wrapped.
  • the spindle is rotatable to pull the tape along thus to effect such advancement.
  • the passageway through which the disposable. tubes move laterally is itself adjusted by,the descent of the permanent pipette tube section in a direction at right angles to the plane of the passageway. This adjustment of the passageway effects a perfect longitudinal alignment of the permanent pipette tube section with the disposable pipette tube section in the terminal position.
  • FIG. 1 is a side view of a portion of a machine utilizing a pivotally arranged-pipette system in which the pipette has permanent and disposable tube sections;
  • FIG. 2 is a partial sectional view on line 2-2 of FIG. 1;
  • FIG. 3 is a perspective view illustrating the relative dispositions of the disposable tube sections and the tape to which they are attached as the tube sections travel through the dispensing passageway;
  • FIG. 4 is a fragmented front view of the disposable tube section dispensing magazine.
  • FIG. 5 is a fragmented sectional view on line 5'-5 of FIG. 4.
  • the portion'of the machine with which the dispensing mechanism is associated includes a rigid frame 10 rotatable about a pivot 11 having a given position in the fixed frame 12 of the machine (FIG. 1).
  • a segment 13 which is fixed on the pivoted frame It) presents a peripheral edge 14 concentric with the pivot 11 and equipped with teeth geared to a pinion 15 arranged for rotation in opposite directions by a motor not shown but which is mounted on the fixed frame 12.
  • a slide member 16 is disposed on a pair of parallel rod 17 fixed in the pivoted frame 10.
  • the rods 17 constitute ways along which the slide member travels radially toward and from the pivot 11.
  • the radial movement of the slide member 16 toward and from the pivot 11 is effected by a toothed pinion 18 concentrically disposed with respect to said pivot and which is arranged for rotation in opposite directions by a motor (not shown) supported by the machine frame 12.
  • Another toothed pinion 19 is rotatably mounted on the frame supporting segment 13 intermediate and for cooperation with both the pinion 18 and a rack 26 fixed to the slide member 16.
  • slide member 16 moves to one end of pivoted frame 10 when pinion 18 rotates in one direction and to the other end of the pivoted frame when the pinion turns in the opposite direction.
  • Slide member 16 carries a pipette which has a permanent tube section 21 connected by a flexible tube 22 passing through pivot 11 to a suction source not shown.
  • the pipette also includes one disposable tube section T1 supplied from a group of disposable tube sections T and which is automatically attached to the permanent tube section 21 at the start of a machine cycle of operation and automatically discarded from the permanent pipette tube section 21 near the end of the machine cycle.
  • the attachment of the tape is substantially at the mid portion of the tube sections and the linear dimension of the tape is at right angles to the longitudinal axes of the respective tubes.
  • the tube sections with tape attached are convoluted into a roll with one end resting on a plate 25 fixed to the machine frame and disposed at an angle which gives the individual disposable pipette tube sections an inclination with the horizontal the same as the direction of travel of the permanent pipette tube section when the latter is in the position 1 ready to descend and pick up a disposable tube section.
  • the inclined plate 25 forms the base of a magazine which further includes a wall 26 disposed at right angles to the base and which is curved at one end to form a cradle to accommodate the convoluted roll.
  • the wall 26 is flat for a substantial portion of its length and extends to a position adjacent the path of movement of the permanent pipette section 21 as it descends whereupon the plate is reversed upon itself to present a wall portion 27 spaced from but parallel with wall 26 and which together provide a passageway 28 wide enough to accommodate the movement of the disposable tube sections one at a time (FIGS. 2, 4 and Wall 26 is flexible to permit motion to align the disposable pipette tube section next to be picked up with the permanent pipette tube section in position l.
  • the wall portion 27 of the passageway terminates in a flange 29 extending at a right angle away from the passageway 28 and secured to a vertical post 30.
  • Vertical post 30 has one face 31' coplanar with the inner face of wall portion 27 of the passageway 28.
  • face 31 of the vertical post 30 is a continuation of one face of the passageway.
  • a section of the wall 33 adjacent the position of tape travel and wide enough to accommodate the tape may be cut out of the wall and curved outwardly to present a guiding surface for the tape as it threads out of the passageway. From the guiding surface the tape threads to a rotatable spindle 34 mounted perpendicularly to the base of the magazine and'around which the tape 24 passes with its adhesive surface in contact.
  • a motor 35 suitable for the purpose and associated with the spindle 34 is arranged when feed of the tube sections through the passageway is desired to apply a torque to the spindle in a direction to pull on the tape.
  • the passageway 28 While the passageway 28 is closed at the top for a major portion of its length, the end portion thereof is cut away as at 37 to expose the upper end of the disposable tube section which is in the terminal position.
  • the pressure of the disposable tubes on the tube in the terminal position is sufficient to hold that tube snug against the end of the passageway so that no problem arises in effecting its alignment with the permanent pipette tube section in the direction lengthwise of thepassageway. Registration of the terminal tube with the permanent pipette section in the direction at right angles to the feed of the tubes through the .passageway may create a problem if, for any reason, frame 10 in returning to position 1 has not been arrested so as precisely to align permanent pipette tube section 21 with the plane of passageway 28.
  • bracket 38 fixed to the post 30 and which has a vertical portion 39 at the top thereof offset toward the terminal position inthe passageway.
  • Vertical top portion 39 has suflicient width in the direction transverse of the passageway 28 to accommodate a vertical slot 40 which opens upwardly and which is, upon the descent of the slide member 16 on which the permanent pipette secin the terminal position thereof such as to interfere with' its telescopic entry, the engagement of the pin 41 in the slot 40 will adjust thepassageway unit into proper alignment.
  • passageway wall 26. is made of spring steel and since post 30 is fastened to wall 26 through flange, 29 of passageway wall 27 and the intermediate spacer bar 28.
  • a device for automatically supplying disposable pipette tube sections to a permanent pipette tube section constrained to move from one position to another for the transfer of liquid therein comprising a group of individualdisposable tube sections having all the same length and attached to a tape at one side thereof with their axis parallel and their corresponding ends in registry, a passageway through which the tube sections are conveyed laterally one after the other by the application of tension to the tape, means associated with the passageway to facilitate disengagement of the tape from the tube sections, a terminal position in said passageway in which tube sections disengaged from the tape are located one at a time by movement of the tube sectionswhich follow in the passageway, a reciprocable permanent pipette section adaptedupon movement in one direction frictionally to engage in the bore of the tube section in said terminal position-and upon movement in the opposite direction to remove the tube section from said terminal position, and means for applying tension to the tape to move a following tube section into the terminal position after the tube section in advance thereof has been removed.
  • a device wherein there is an extension of the passageway beyond the means to facilitate disengagement of the tape from the tube sections and which has a closed end defining the terminal tube position in the passageway.
  • a device according to claim 1 wherein the tape has a pressure sensitive adhesive at one side thereof by which the tube sections are attached to the tape.
  • a device according to claim 1 wherein the disposable tube sections with tape attached are disposed in the device in the form of a roll.
  • a device wherein the leading end of the roll is threaded into the passageway and a platform associated with the passageway supports the roll on end.
  • a device according to claim 1 wherein the tape is attached to a rotatable spindle arranged to apply tension to the tape by its tendency to rotate.
  • a device provided with equipment adapted to cooperate with means on the reoiprocable permanent pipette section as the pipette moves to engage.
  • the disposable tube section to adjust the bore of the disposable tube section in terminal position into exact registry with the permanent pipette section.
  • a device provided with equipment adapted to cooperate with means on the reciprocable permanent pipette section as said pipette section moves, to adjust the passageway laterally whereby to locate the bore of the tube section in terminal position into exact registry with the permanent pipette section.
  • a device equipped with a slot adapted for entry by a pin associated with the reciprocable permanent pipette section as the latter moves to engage the disposable tube section, to adjust the passageway laterally, whereby to locate the bore of the tube section in the terminal position in exact registry with the permanent pipette section.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Sampling And Sample Adjustment (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
US404413A 1964-10-16 1964-10-16 Disposable tube dispensing device Expired - Lifetime US3249256A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
US404413A US3249256A (en) 1964-10-16 1964-10-16 Disposable tube dispensing device
CH1410365A CH440762A (de) 1964-10-16 1965-10-13 Vorrichtung zum automatischen Zuführen von Wegwerf-Pipettenröhrchen
NL6513228A NL6513228A (https=) 1964-10-16 1965-10-13
SE13404/65A SE324070B (https=) 1964-10-16 1965-10-15
FR35104A FR1451665A (fr) 1964-10-16 1965-10-15 Appareil distributeur de tubes perdus
BE670999A BE670999A (https=) 1964-10-16 1965-10-15
DE19651598887 DE1598887A1 (de) 1964-10-16 1965-10-15 Vorrichtung zur automatischen Zufuehrung verlorener Schlauchstuecke
GB44000/65A GB1110757A (en) 1964-10-16 1965-10-18 Disposable tube dispensing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US404413A US3249256A (en) 1964-10-16 1964-10-16 Disposable tube dispensing device

Publications (1)

Publication Number Publication Date
US3249256A true US3249256A (en) 1966-05-03

Family

ID=23599505

Family Applications (1)

Application Number Title Priority Date Filing Date
US404413A Expired - Lifetime US3249256A (en) 1964-10-16 1964-10-16 Disposable tube dispensing device

Country Status (7)

Country Link
US (1) US3249256A (https=)
BE (1) BE670999A (https=)
CH (1) CH440762A (https=)
DE (1) DE1598887A1 (https=)
GB (1) GB1110757A (https=)
NL (1) NL6513228A (https=)
SE (1) SE324070B (https=)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3591044A (en) * 1969-01-10 1971-07-06 Amf Inc Patch-feeding device for cigar-making machine
US4440355A (en) * 1981-02-23 1984-04-03 Matsushita Electric Industrial Co., Ltd. Electronic component supply apparatus
US5584633A (en) * 1994-05-10 1996-12-17 General Binding Corporation Binder element conveying mechanism
US20040037671A1 (en) * 2002-08-22 2004-02-26 Frank Vercillo Semi-automatic tube clip fastener applicator machine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2324255C3 (de) * 1973-05-14 1981-10-29 Kernforschungszentrum Karlsruhe Gmbh, 7500 Karlsruhe Einrichtung zur Beförderung einer Pipette von einem Lager zu einer Dosierstelle und zur Füllung, Entleerung und Beseitigung der Pipette

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1964597A (en) * 1931-10-09 1934-06-26 Rapellin Rene Cigarette dispensing device
US2056560A (en) * 1934-12-18 1936-10-06 Scovill Manufacturing Co Dispensing device
DE957717C (de) * 1957-01-17 Kerb-Konus-Gesellschaft Dr. Carl Eibes & Co., Schnaittenbach (Obpf.) und Mahle Kommanditgesellschaft, Stuttgart - Bad Cannstatt Zubringereinrichtung für stiftförmige Verbindungsteile
US3027047A (en) * 1956-04-27 1962-03-27 Francis M Johnson Chaff tape cutter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE957717C (de) * 1957-01-17 Kerb-Konus-Gesellschaft Dr. Carl Eibes & Co., Schnaittenbach (Obpf.) und Mahle Kommanditgesellschaft, Stuttgart - Bad Cannstatt Zubringereinrichtung für stiftförmige Verbindungsteile
US1964597A (en) * 1931-10-09 1934-06-26 Rapellin Rene Cigarette dispensing device
US2056560A (en) * 1934-12-18 1936-10-06 Scovill Manufacturing Co Dispensing device
US3027047A (en) * 1956-04-27 1962-03-27 Francis M Johnson Chaff tape cutter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3591044A (en) * 1969-01-10 1971-07-06 Amf Inc Patch-feeding device for cigar-making machine
US4440355A (en) * 1981-02-23 1984-04-03 Matsushita Electric Industrial Co., Ltd. Electronic component supply apparatus
US5584633A (en) * 1994-05-10 1996-12-17 General Binding Corporation Binder element conveying mechanism
US20040037671A1 (en) * 2002-08-22 2004-02-26 Frank Vercillo Semi-automatic tube clip fastener applicator machine

Also Published As

Publication number Publication date
DE1598887A1 (de) 1970-04-16
GB1110757A (en) 1968-04-24
CH440762A (de) 1967-07-31
SE324070B (https=) 1970-05-19
BE670999A (https=) 1966-04-15
NL6513228A (https=) 1966-04-18

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