EP0531727A1 - Chemiluminescent lighting element - Google Patents

Chemiluminescent lighting element Download PDF

Info

Publication number
EP0531727A1
EP0531727A1 EP92113633A EP92113633A EP0531727A1 EP 0531727 A1 EP0531727 A1 EP 0531727A1 EP 92113633 A EP92113633 A EP 92113633A EP 92113633 A EP92113633 A EP 92113633A EP 0531727 A1 EP0531727 A1 EP 0531727A1
Authority
EP
European Patent Office
Prior art keywords
tube
disk
diaphragm
element according
diameter
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.)
Withdrawn
Application number
EP92113633A
Other languages
German (de)
English (en)
French (fr)
Inventor
Robert D. Giglia
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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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 American Cyanamid Co filed Critical American Cyanamid Co
Publication of EP0531727A1 publication Critical patent/EP0531727A1/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K2/00—Non-electric light sources using luminescence; Light sources using electrochemiluminescence
    • F21K2/06—Non-electric light sources using luminescence; Light sources using electrochemiluminescence using chemiluminescence

Definitions

  • the present invention relates to a lighting unit which comprises a tube made of a specific light transmitting flexible material.
  • This article in it's passive state, comprises at least two compartments, each of which contains a chemical liquid which, in the active stage of the article, mix to yield a chemical reaction which generates light.
  • the closed ends of the article are fused walls of the tube and are in substantially flat planes.
  • Lighting units are already known which are based on the chemiluminescent emission generated by the mixing of two liquids.
  • One system which is used commercially on a wide scale, is described, for example, in U.S. Patent No. 3,576,987; it consists of a first liquid solution in a hollow tube made of a light transmitting and slightly flexible plastic, and a second liquid solution contained in a glass vial or glass capillary which floats in the first solution. When the user bends the tube, the internal glass unit breaks and releases the second solution which mixes with a first solution.
  • This system is not without drawbacks.
  • the device is formed by injection molding which results in the sealing of one end. However, the other end is closed by spin-welding which is time-consuming and expensive.
  • U.S. Patent Number 5,067,051 filed June 22, 1990 discloses an article comprising a flexible and light transmitting tube made of a plastic material, which is closed at both ends and which contains, between these ends, an internal diaphragm or disk, which separates the content of the tube into at least two compartments, which diaphragm or disk comprises a flat circular configuration.
  • Figure 1 of the drawings represents a perspective view of the lighting element of the instant invention whereby the element 1 is divided into compartment 2 and compartment 3 by disk 4.
  • the ends of the element contain a closure 5 which is a fusion of the side walls of the element and comprises an area lying in a substantially flat plane.
  • Figure 2 is also a prospective view showing, in addition, attachment means 6.
  • the seals at both ends of the device comprise a fusion of the walls of the tube and each lie in a substantially flat plane.
  • the tube must have a Stiffness Modulus, as determined by ASTM Test Method D-790, of less than about 700, preferably, less than about 655 mPa and a Tensile Yield Strength, as determined by ASTM Test Method D-638 using Type IV Specimen, of over about 15, preferably over about 18 mPa.
  • the disk in a profile cross-section, has an approximately rectangular section, that is, it has a reasonably peripheral sharp edge.
  • the edge or border of the disk is placed perpendicular to the longitudinal axis of the tube, and is in close contact with the internal side of the wall of the tube, thus defining compartments, which are each filled with a liquid solution for the purpose of creating a chemiluminescent emission, when mixed.
  • the disk is rigid or, in any case, significantly more rigid than the material which forms the tube.
  • the disk should not be too thick. It has been found that a thickness from about 1 to about 4 mm is appropriate for a tube with an interior diameter between about 7 and about 18 mm, i.e. the thickness of the disk should not be greater than about one half the interior diameter of the tube.
  • the material which constitutes the disk it is preferably selected among polyolefins, that is plastic materials which have good resistance against chemiluminescent solutions. Polyethylene is particularly indicated because its waxy surface promotes the sealing of the contact between the disk and the interior of the wall of the tube.
  • the disk itself can be made of a rigid material, for example, a high-density polyethylene or a polypropylene.
  • the diameter of the disk is preferably selected in such a manner that it is slightly greater than the internal diameter of the tube and so that its border, or edge, applies pressure against the wall of the tube, and said wall applies a pressure because of its own elasticity, thus insuring a more secure sealing connection.
  • an external ring or sheath for example, made of a rigid plastic material or of metal.
  • This ring or sheath is placed concentrically with respect to the tube and on the exterior of the latter, at the level of the internal disk i.e. surrounding the disk. It consists of a cylinder with a length of about 2 to about 15 mm and a wall thickness of about 0.5 to 5 mm.
  • the internal diameter of the ring or sheath is slightly less than the external diameter of the tube, as recorded perpendicularly to the disk.
  • the ring or sheath is preferably made of a rigid material. It can be prepared, for example, by the injection molding of a polycarbonate material.
  • the disk When a ring or sheath is used, the disk can have either the same diameter as the internal diameter of the tube or it can be slightly smaller than the internal diameter of the tube.
  • the diameter of the disk is large, but in this case again, the internal diameter of the ring or sheath should be very slightly smaller than the external diameter of the swollen tube at the position of the disk.
  • the disk diameter is slightly less than the tube diameter, the creation of a communications link between the two compartments will occur, however, automatically when the tightening ring or sheath is shifted sufficiently along the axis of the tube.
  • the presence of the ring or sheath also contributes to the prevention of any accidental tilting of the disk before its final use, particularly during handling operations in transport and storage.
  • the sliding of the ring or sheath, at the time of use, as during the assembly, is facilitated by the waxy property of the polyethylene which is the preferred material for the tube.
  • the sliding of the ring, due to the pressure of exerts on the tube, can also cause the disk to tilt in order to activate the device.
  • the elongated tube into which the disk is inserted must be produced from a material which has the specifications of Tensile Yield Strength and Stiffness Modulus set forth above.
  • a polyolefin e.g. linear polyethylene, polyolefin copolymers, e.g. random copolymers of ethylene and propylene or multilayer composites of polyolefin layers.
  • Mixtures of polyolefin homopolymers and copolymers can also be used alone or as composites. Having said balance of properties enables the fused end seals of the tube walls to withstand the pressure which builds up when the device is activated by mixing the chemical ingredients therein.
  • the end seals should preferably be at least one and one-half times the thickness of the wall of the tube, preferably at least three times the thickness of the wall of the tube; in width and have at least the thickness of the wall of the tube.
  • a suitable linear polyethylene is sold commercially as SCLAIR® 8405 by DuPont de Nemours and Company. These composites are prepared as known in the art e.g. by coextrusion etc.
  • a random copolymer having suitable properties is Rexene PP9403E and a suitable multilayer composite comprises a Quantum Chemical Corp. Petrothene® LLPE GB501-01 inside layer, a DuPont Bynez tm CXA 3101 ethylene based tie layer and a Rexene ethylene/propylene copolymer 235SA outside layer.
  • the chemiluminescent article which is the object of the present invention does not necessarily require that the above described tube have the same cross-section along its entire length. It is only in proximity to the disk that the cross-section must be cylindrical. At other places and, possibly, on both sides of the region where the disk is located, the contour of the tube can form any shape, so that its capacity is locally increased. The aesthetic appearance of the entire assembly of the article can thus be changed significantly.
  • the well-known process of extrusion blowing permits the preparation of such hollow bodies made of polyolefins in a continuous, economical process.
  • a transparent or translucent i.e. light transmitting, and flexible linear polyethylene having a Stiffness Modulus of 655 mPa and a Tensile Yield Strength of 18 mPa, with an external diameter of 12.8 mm and a wall thickness of 0.6 mm, cuts it to the desired length of 10 cm and places it vertically.
  • a disk made of a high density polyethylene with a diameter of 12.8 mm and a thickness of 1.5 mm, with the fall of the disk being achieved by manually squeezing the tube along the path of the fall.
  • the disk is then in a position against the aluminum rod and is wedged perpendicularly to the axis of the tube by pushing a second rod similar to the first one which was introduced beforehand through the upper end.
  • the middle of this ring is placed at the position of the disk, in the tube.
  • the rods are then removed, the two compartments are filled, either completely or partially, with the respective liquids which will produce the chemiluminescence when brought in communication by manual tilting of the disk, and the ends are sealed closed by application of heat and pressure into a substantially flat plane of 4.7 mm surface width and 1.2 mm thickness.
  • Two diaphragms or disks may also be placed in contact with each other, with the contact faces being optionally greased to facilitate their tilting.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Investigating Or Analysing Materials By The Use Of Chemical Reactions (AREA)
  • Optical Measuring Cells (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
EP92113633A 1991-09-13 1992-08-10 Chemiluminescent lighting element Withdrawn EP0531727A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US75935091A 1991-09-13 1991-09-13
US759350 1991-09-13

Publications (1)

Publication Number Publication Date
EP0531727A1 true EP0531727A1 (en) 1993-03-17

Family

ID=25055329

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92113633A Withdrawn EP0531727A1 (en) 1991-09-13 1992-08-10 Chemiluminescent lighting element

Country Status (13)

Country Link
EP (1) EP0531727A1 (enrdf_load_stackoverflow)
JP (1) JPH05209834A (enrdf_load_stackoverflow)
KR (1) KR930006362A (enrdf_load_stackoverflow)
AU (1) AU2355492A (enrdf_load_stackoverflow)
BR (1) BR9203527A (enrdf_load_stackoverflow)
CA (1) CA2078033A1 (enrdf_load_stackoverflow)
FI (1) FI924081A7 (enrdf_load_stackoverflow)
HU (1) HUT63486A (enrdf_load_stackoverflow)
IL (1) IL103131A (enrdf_load_stackoverflow)
MX (1) MX9205018A (enrdf_load_stackoverflow)
NO (1) NO923547L (enrdf_load_stackoverflow)
TW (1) TW221833B (enrdf_load_stackoverflow)
ZA (1) ZA926965B (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7617776B1 (en) * 2004-09-27 2009-11-17 Diffraction, Ltd. Selective emitting flare nanosensors

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861072A (en) * 1973-05-29 1975-01-21 Gordon B Holcombe Luminescent fishing lure
EP0406551A1 (en) * 1989-07-07 1991-01-09 Omniglow Corporation Chemiluminescent lighting element
US5043851A (en) * 1990-09-13 1991-08-27 Omniglow Corporation Polygonal chemiluminescent lighting device

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3861072A (en) * 1973-05-29 1975-01-21 Gordon B Holcombe Luminescent fishing lure
EP0406551A1 (en) * 1989-07-07 1991-01-09 Omniglow Corporation Chemiluminescent lighting element
US5043851A (en) * 1990-09-13 1991-08-27 Omniglow Corporation Polygonal chemiluminescent lighting device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7617776B1 (en) * 2004-09-27 2009-11-17 Diffraction, Ltd. Selective emitting flare nanosensors

Also Published As

Publication number Publication date
KR930006362A (ko) 1993-04-21
TW221833B (enrdf_load_stackoverflow) 1994-03-21
NO923547D0 (no) 1992-09-11
FI924081A7 (fi) 1993-03-14
CA2078033A1 (en) 1993-03-14
AU2355492A (en) 1993-03-18
HU9202917D0 (en) 1992-12-28
IL103131A0 (en) 1993-02-21
FI924081A0 (fi) 1992-09-11
ZA926965B (en) 1993-03-26
HUT63486A (en) 1993-08-30
JPH05209834A (ja) 1993-08-20
MX9205018A (es) 1993-04-01
BR9203527A (pt) 1993-04-13
NO923547L (no) 1993-03-15
IL103131A (en) 1994-07-31

Similar Documents

Publication Publication Date Title
EP0406551B1 (en) Chemiluminescent lighting element
HK1006998B (en) Chemiluminescent lighting element
US4610684A (en) Flexible container and mixing system for storing and preparing I.V. fluids
JP2009136687A (ja) 生物薬剤流体製品の輸送用の可撓性バッグ
KR101074105B1 (ko) 해제가능한 내부 용기를 구비한 자체-혼합 콘테이너 및 그 사용방법
EP0176590A1 (en) Container such as a nursing container having a protection compartment for a dispensing member
CN1040860C (zh) 盛放流体的袋
EP0157829A1 (en) Compartment mixing container having breakable connection between compartments
US5545562A (en) Device for identifying straws for cryogenic storage of biological liquids
KR940015492A (ko) 차단라벨
JP4121648B2 (ja) 詰め替え用パウチ
US3589422A (en) Sealed bag for liquids
EP0531727A1 (en) Chemiluminescent lighting element
EP0473838A1 (en) Tubular chemiluminescent lighting element
FR2752410A1 (fr) Recipient non rigide tel que sachet ou poche permettant plusieurs ponctions ou injections sans perdre son etancheite
AU605174B2 (en) Improvements in or relating to a support device for plants and/or a method of supporting plants
JP3819188B2 (ja) 液体容器とその製造方法
JPH10175645A (ja) 多成分用樹脂容器
JPH07291303A (ja) 自立性包装体
JP4139820B2 (ja) 詰め替え用パウチ
JP3721066B2 (ja) 液体包装スティック
KR930001779B1 (ko) 내용물 압출용 포장체
JPH0272056A (ja) 容器密封用スリーブとそのシール用具
EP0967157A1 (en) Semipermeable venting closure
JP2001080656A (ja) 詰め替え用パウチ

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

17P Request for examination filed

Effective date: 19930906

RAP1 Party data changed (applicant data changed or rights of an application transferred)

Owner name: AMERICAN CYANAMID COMPANY

17Q First examination report despatched

Effective date: 19940920

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 19950131