US3589884A - Glass bulbs and the like containers provided with self-breakable necks - Google Patents

Glass bulbs and the like containers provided with self-breakable necks Download PDF

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Publication number
US3589884A
US3589884A US804554A US3589884DA US3589884A US 3589884 A US3589884 A US 3589884A US 804554 A US804554 A US 804554A US 3589884D A US3589884D A US 3589884DA US 3589884 A US3589884 A US 3589884A
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US
United States
Prior art keywords
bulb
neck
breakable
self
glass
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
US804554A
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English (en)
Inventor
Raymond Guiriec
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.)
LABORAVER SARL
Original Assignee
LABORAVER SARL
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 LABORAVER SARL filed Critical LABORAVER SARL
Application granted granted Critical
Publication of US3589884A publication Critical patent/US3589884A/en
Anticipated expiration legal-status Critical
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Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/06—Cutting or splitting glass tubes, rods, or hollow products
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES 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
    • A61M3/00—Medical syringes, e.g. enemata; Irrigators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B67—OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS; LIQUID HANDLING
    • B67B—APPLYING CLOSURE MEMBERS TO BOTTLES JARS, OR SIMILAR CONTAINERS; OPENING CLOSED CONTAINERS
    • B67B7/00—Hand- or power-operated devices for opening closed containers
    • B67B7/92—Hand- or power-operated devices for opening closed containers by breaking, e.g. for ampoules
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
    • C03B33/00—Severing cooled glass
    • C03B33/09—Severing cooled glass by thermal shock
    • C03B33/095—Tubes, rods or hollow products
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/04—Processes
    • Y10T83/0405—With preparatory or simultaneous ancillary treatment of work
    • Y10T83/041—By heating or cooling
    • Y10T83/0414—At localized area [e.g., line of separation]

Definitions

  • the present invention has for its object glass bulbs, phials and the like containers provided with one or two necks adapted to be broken so as to allow the contents to be used. "A
  • Said prior patent also discloses the production of internal stresses within the glass structure by applying a cold implement over the neck which is still in a hot condition or else a product adapted to melt while its coetficient of expansion is higher than that of the bulb.
  • These last two modifications have been referred to however as less satisfactory than the scratching of the neck and in fact this last method was considered as the sole one suitable in the case of conventional bulbs with a single neck. It requires however the use of a colored product which can melt easily and which melts during the annealing procedure, which means auxiliary operations and leads to the production of exaggeratedly brittle bulbs or conversely of unbreakable bulbs according as to whether the notch is too deep or too shallow.
  • the present invention has for its object to cut out the above drawbacks by producing through a single simple operation the inner stressing of the glass and the marking of the section to be broken, before use without any other ancillary operations.
  • the method provided by the invention consists in applying against the .glass forming the bulb neck, while the bulb is at a temperature ranging between about and C. a thin annealed blade or section of silver, aluminium or of an aluminium alloy.
  • Said metal blade or section which is laid on the bulb at room temperature produces a straining of the glass material which furthers the breaking of the neck and leaves an indelible mark on the glass; this cuts out the necessity of any subsequent marking by means of a fusible material, which marking is always a lengthy. operation and requires an annealing, while furthermore it risks being inaccurate.
  • the method according to the invention provides thus multiple advantages chiefly as concerns speed and simplicity when compared With prior methods.
  • the method consisting in straining and marking one or both ends of the bulb is incorporated with the actual production of the bulb and is performed during the cooling stage following the drawing out and cutting off of the bulb just before the ejection of the finished bulb.
  • the thin blade is applied over the bulb while the latter revolves through at least one revolution round its axis so as to leave a mark surrounding entirely the neck of the bulb, whereby this neck may be readily broken off by a bending stress exerted in any direction whatever.
  • the machine for executing the method according to the invention is constituted by a bulb-producing machine of the so-called Well-known merry-go-round drawing out type wherein the glass tubes are heated locally and then drawn out to form the necks of the bulbs or phials which are then cut off, one end thus formed being closed and the other remaining open.
  • said machine is provided at a point ahead of the drawing out station with one or two blades made of annealed silver, aluminium or aluminium alloy and the edge of which is urged elastically against the path followed by one or both bulb necks formed by drawing the successive bulbs out of the original tube.
  • FIG. 1 is an elevational view of a bulb obtained in accordance with my invention
  • FIG. 2 is a diagrammatic elevational view of the station of the bulb-producing machine at which a metal deposit is obtained so as to mark the necks of a bulb, said cross-section being executed along line II-II of FIG. 3.
  • FIG. 3 is a diagrammatic plan view of the station as seen under the horizontal plane designated by III-III in FIG. 2.
  • the bulb 1 is of the standard type including two straight tapering necks, the end of the neck 2 being closed by melting said end 2 to form a bead 3 on the latter while the other end 4 remains open for its subsequent filling before welding.
  • each neck of the bulb is provided with annular peripheral traces of annealed silver, aluminium or aluminium alloy.
  • the merry-go-round of the conventional bulb-producing machine includes a lower annular plate 6 and an upper annular plate 7, both plates being driven into rotation in the direction of the arrow F while the tubeclamping members 8 and 9 are driven in the direction of the arrows ;f.
  • the members 8 engage the original glass tubes 10 while the members 9 engage the already formed bulb, the neck-shaped end 2 of which is already closed by welding.
  • the part of the tube 10 extending between the two tube-clamping members has been heated at a preceding station by means of a blow-pipe and has been stretched so as to form the neck 4 on the bulb 1 and the neck 2 on the lower end of the remainder of the tube 10, the connection between the tube and the bulb being cut off just under the lower sealed end of the tube 10'.
  • the neck 4 of the bulb 1 and the neck 2 at the lower end of the tube 10 hold the blades 11 against further inward motion so that said blades leave on the glass by reason of the rotary movement and temperature of the latter a clear apparent trace 5.
  • Such a metal trace furthers heat exchange with the outer atmosphere whereby a local cooling of the underlying glass section is accelerated and consequently an inner strain appears in said section.
  • the neck breaks along a clean line defined by the trace 5.
  • a method of providing a self-breaking neck on a hollow glass article comprising urging a thin member of a metal selected from the group consisting of annealed silver, aluminum and aluminum alloy against the neck of a hollow glass article while the neck is at a temperature of about 100 to 180 C. and rotating said article through at least one complete rotation about the axis of its neck during the application of said member so as to deposit on the glass a band of said metal that encircles the neck and that accelerates local cooling of the underlying glass thereby to form on said neck an annular stressed section that allows the neck to be broken readily by flexural stresses in any direction.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Mechanical Engineering (AREA)
  • Animal Behavior & Ethology (AREA)
  • Anesthesiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Devices For Opening Bottles Or Cans (AREA)
  • Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
US804554A 1968-03-05 1969-03-05 Glass bulbs and the like containers provided with self-breakable necks Expired - Lifetime US3589884A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR142377 1968-03-05

Publications (1)

Publication Number Publication Date
US3589884A true US3589884A (en) 1971-06-29

Family

ID=8646989

Family Applications (1)

Application Number Title Priority Date Filing Date
US804554A Expired - Lifetime US3589884A (en) 1968-03-05 1969-03-05 Glass bulbs and the like containers provided with self-breakable necks

Country Status (11)

Country Link
US (1) US3589884A (enrdf_load_stackoverflow)
BE (1) BE729162A (enrdf_load_stackoverflow)
CH (1) CH498782A (enrdf_load_stackoverflow)
DE (1) DE1910942B2 (enrdf_load_stackoverflow)
DK (1) DK127970B (enrdf_load_stackoverflow)
FR (1) FR1583432A (enrdf_load_stackoverflow)
GB (1) GB1228122A (enrdf_load_stackoverflow)
IL (1) IL31727A0 (enrdf_load_stackoverflow)
LU (1) LU58098A1 (enrdf_load_stackoverflow)
NL (1) NL146043B (enrdf_load_stackoverflow)
SE (1) SE359286B (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266681A (en) * 1977-02-28 1981-05-12 Oceanography International Corporation Multiple breakpoint resealable ampoule
US5135727A (en) * 1990-11-29 1992-08-04 Shin-Etsu Handotai Co., Ltd. Automatic single crystal ingot disconnector for single crystal pulling apparatus
US5213860A (en) * 1990-10-18 1993-05-25 Confab Guy Lamarre Inc. Plastic ampul
US5551643A (en) * 1995-09-08 1996-09-03 Chapin; Michael Fluorescent tube breaker apparatus
US20080257481A1 (en) * 2005-02-09 2008-10-23 Breath Limited Sealing of plastic containers

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2560869B1 (fr) * 1984-03-07 1988-02-26 Ampoules Mecaniques Ste Fse Recipient en verre, notamment ampoule, cassable
DE3615287A1 (de) * 1986-05-06 1987-11-12 Schott Ruhrglas Glasgefaess, insbesondere ampulle, und verfahren zur behandlung dieses glasgefaesses
CN109110708B (zh) * 2018-06-26 2020-03-24 董芳 医疗用安瓿瓶的开瓶装置

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4266681A (en) * 1977-02-28 1981-05-12 Oceanography International Corporation Multiple breakpoint resealable ampoule
US5213860A (en) * 1990-10-18 1993-05-25 Confab Guy Lamarre Inc. Plastic ampul
US5135727A (en) * 1990-11-29 1992-08-04 Shin-Etsu Handotai Co., Ltd. Automatic single crystal ingot disconnector for single crystal pulling apparatus
US5551643A (en) * 1995-09-08 1996-09-03 Chapin; Michael Fluorescent tube breaker apparatus
US20080257481A1 (en) * 2005-02-09 2008-10-23 Breath Limited Sealing of plastic containers
US20110131929A1 (en) * 2005-02-09 2011-06-09 Breath Limited Sealing of Plastic Containers

Also Published As

Publication number Publication date
BE729162A (enrdf_load_stackoverflow) 1969-08-01
DK127970B (da) 1974-02-11
NL146043B (nl) 1975-06-16
DE1910942B2 (de) 1972-06-29
IL31727A0 (en) 1969-05-28
GB1228122A (enrdf_load_stackoverflow) 1971-04-15
FR1583432A (enrdf_load_stackoverflow) 1969-10-31
SE359286B (enrdf_load_stackoverflow) 1973-08-27
NL6903251A (enrdf_load_stackoverflow) 1969-09-09
LU58098A1 (enrdf_load_stackoverflow) 1969-06-03
DE1910942A1 (de) 1969-11-13
CH498782A (fr) 1970-11-15

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