EP0080843B1 - Vorrichtung und Verfahren zum Schmieren von Garn - Google Patents

Vorrichtung und Verfahren zum Schmieren von Garn Download PDF

Info

Publication number
EP0080843B1
EP0080843B1 EP82306180A EP82306180A EP0080843B1 EP 0080843 B1 EP0080843 B1 EP 0080843B1 EP 82306180 A EP82306180 A EP 82306180A EP 82306180 A EP82306180 A EP 82306180A EP 0080843 B1 EP0080843 B1 EP 0080843B1
Authority
EP
European Patent Office
Prior art keywords
strand
path
additive
speed
engaging
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
Application number
EP82306180A
Other languages
English (en)
French (fr)
Other versions
EP0080843A3 (en
EP0080843A2 (de
Inventor
Frances H. White
Eugene F. White
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
Priority to AT82306180T priority Critical patent/ATE21376T1/de
Publication of EP0080843A2 publication Critical patent/EP0080843A2/de
Publication of EP0080843A3 publication Critical patent/EP0080843A3/en
Application granted granted Critical
Publication of EP0080843B1 publication Critical patent/EP0080843B1/de
Expired legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06B—TREATING TEXTILE MATERIALS USING LIQUIDS, GASES OR VAPOURS
    • D06B23/00—Component parts, details, or accessories of apparatus or machines, specially adapted for the treating of textile materials, not restricted to a particular kind of apparatus, provided for in groups D06B1/00 - D06B21/00
    • D06B23/24—Means for regulating the amount of treating material picked up by the textile material during its treatment
    • D06B23/26—Means for regulating the amount of treating material picked up by the textile material during its treatment in response to a test conducted on the textile material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H71/00—Moistening, sizing, oiling, waxing, colouring or drying filamentary material as additional measures during package formation
    • B65H71/007—Oiling, waxing by applying liquid during spooling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2701/00—Handled material; Storage means
    • B65H2701/30—Handled filamentary material
    • B65H2701/31—Textiles threads or artificial strands of filaments

Definitions

  • This invention relates to applying materials to strand material, such as lubricating textile yarn, as the strand material is advanced in an indeterminate length and along a predetermined path.
  • the strand materials being advanced in indeterminate lengths and along predetermined paths are advanced at varying strand velocities.
  • variation in strand velocity has, in many instances, been a source of unevenness in the application of lubricants or the like.
  • strands drawn in engagement with solid bodies of lubricants such as wax and the like may take on from the solid body varying quantities of lubricant depending upon tension and speed of the yarn.
  • an alternative form of lubricant application such as spraying, dripping or transfer from a lubricant roll
  • the variations in lubricant application which can easily result from variations in strand velocity and tension may be compounded by other factors.
  • the same or similar problems exist in similar dyeing, coating, and other processes and apparatus.
  • uniformity of material application is . of significance as any following process must otherwise accommodate undesirable variations.
  • improved uniformity of lubrication or the like is desirable and important.
  • a desired non-uniform profile of material application along the length of a strand may be desirable. In both the general and specific, control over application is critical.
  • GB-A-1 256 898 and US ⁇ A ⁇ 2053306 both disclose apparatus for applying liquid additive to strand material such as textile yarn as the strand material is moved along a predetermined path, the apparatus comprising means for engaging the strand material at a position along the path and responsive to the speed of movement of the strand material, liquid additive applying means disposed adjacent the path for applying liquid additive to the strand material, and means operatively coupling means for engaging the strand material and the additive applying means for varying the rate of additive application in response to the speed of the strand material.
  • GB-A-1256898 and US-A-2 053 306 also disclose a method of applying liquid additive to strand material as the strand material is advanced along a predetermined path which includes engaging the strand material moving through the path by means responsive to the speed of movement-omhe strand, positioning additive applying means adjacent the path and operatively coupling the means responsive to the speed of the strand to the additive applying means to vary additive application in response to strand speed.
  • apparatus for applying liquid additive to strand material such as textile yarn as the strand material is moved along a predetermined path comprising means for engaging a single strand of material at a position along the path and responsive to the speed of movement of the strand, liquid additive applying means disposed adjacent the path for applying liquid additive to the single strand and means operatively coupling the means for engaging the strand and the additive applying means for varying the rate of application of additive in response to the speed of the strand is characterised in that the means for engaging the strand are adapted to generate an electrical signal representative of the speed of the strand, variable speed electrical drive means are operatively coupled to the additive applying means for controllably varying the rates of additive application in response to the speed of the drive means, and signal processing means electrically connected to the means engaging the strand and to the drive means for controllably varying the speed of the drive means in response to the electrical signal generated by the means for engaging the strand.
  • the invention includes a method of applying liquid additive to strand material as the strand material is advanced along a predetermined path which includes engaging the strand material moving through the path by means responsive to the speed of movement of the strand, positioning additive applying means adjacent the path and operatively coupling the means responsive to the speed of the strand to the additive applying means to vary additive application in response to strand speed, characterised by generating an electrical signal representative of strand speed from the means responsive to speed and deriving therefrom a drive signal applied to variable speed electrical drive means arranged to drive the additive applying means and thereby controllably varying the rate of additive application in response to strand velocity.
  • GB-A-545 594 discloses a roller for applying liquid additive to a yarn, the roller being driven at variable speed to regulate the application of additive and being peripherally grooved with transverse ridges forming channels extending across the bottom of the groove. The roller is positioned over and dipping into a reservoir of liquid additive.
  • the apparatus operates in conjunction with a winder of a type having package winding spindle 10 and package drive means 11 for advancing strand materials along a predetermined path 12.
  • the package drive means in the form illustrated, is an electrical motor rotating the package winding spindle.
  • a traverse motion compensator 14 is provided in order to maintain certain desired characteristics for the package being formed at the package winding location.
  • a strand S such as a textile yarn is advanced in indeterminate length and along a predetermined, defined path. by the operation of the packagegwind- ing spindle and drive 10, 11.
  • the strand S is trained about and engages a means, generally indicated at 15, for generating a signal indicative of strand velocity.
  • the means 15 includes an especially configured sheave which engages the strand material, in particular a textile yarn, in such a way that the strand is gripped and its movement along the predetermined path is quite accurately reflected by rotation of the sheave.
  • an accurate signal indicative of strand velocity is generated by rotation of the means 15.
  • the velocity signaling means comprises means for adjustably varying tension imposed on the engaged strand material S.
  • the strand S passes adjacent an applicator means generally indicated at 16.
  • the applicator 16 in the specific form shown and in accordance with the present invention, is capable of applying controllably variable amounts of lubricant to strand material advancing along the path.
  • the applicator means 16 comprises a lubrication roll 18 mounted adjacent the strand path for rotation and for engaging strand material and transferring lubricant thereto.
  • the roll 18 is mounted to rotate through a reservoir 19 in which a body of liquid lubricant is maintained.
  • the surface of the roll 18 has a chevron pattern of grooves applied thereto ( Figures 2 and 3), so as to distribute lubricant over the surface of the roll and enhance the uniformity of application.
  • the chevron pattern has been found to be an important element of the specific arrangement shown.
  • the lubricant roll 18 is driven in rotation by an appropriate drive means such as the illustrated electrical motor 20, which forms a portion of a control means.
  • the control means is operatively connected to the velocity signalling means 15 and to the applicator means for responding to signals indicative of strand velocity by controllably varying the amount of lubricant applied to strand material advancing along the path.
  • the control means comprises electrical signal processing means for receiving signals generated by the rotational encoder mentioned hereinabove.
  • the -electrical signal processing means is capable of processing encoder signals over time in order to determine velocity and, by appropriate processing of such signals, to derive a drive signal to be applied to the drive means 20 so as to apply lubricant in a desired uniformity or in a desired profile.
  • the applicator means 16 make take other form such as an aspirator, may apply a material or materials other than lubricants, and/or may apply material from a liquid, solid or gas source.
  • critical elements are that strand velocity varies and that application rates are controllably varied with velocity.
  • control means may comprise length limit means (such as suggested, for example, in Warshaw United "States Patent 3,172,779 or Weller United States Patent 3,293,760 or Mutziger United States Patent 3,564,219) and may be operatively connected to the package drive 11 for controllably interrupting continued advancement of strand material along the predetermined path as may be desired.
  • the functions of the apparatus as described to the present point may include monitoring and controlling lubricant application through the parameters described above, controlling strand tension through the operations described above, and terminating winding upon selected package sizes being reached.
  • central processing units are available which have the capability of monitoring a plurality of thread lines or a number of individual strands of material being processed at substantially the same time on one or more apparatus.
  • the present invention specifically contemplates the provision of multiple channel control arrangements. Where such arrangements are employed, a multiple station winding machine may be operated under the control of a single control means, while means for engaging each of a plurality of strands and for applying lubricant to each of the plurality of engaged strands are provided.
  • strand material such as textile yarn is advanced in an indeterminate length and along a predetermined path.
  • the material is engaged while advancing along the path and while a signal indicative of strand velocity is generated.
  • Controllably variable amounts of lubricant are applied to the strand material as the material advances along the path, and the amounts of lubricant applied are varied in response to the signals indicative of strand velocity.
  • a uniform application of lubricant along the length of the strand material is achieved.
  • the possibility exists of controlling a profile by which the quantity of lubricant applied might vary in a controlled predetermined manner along the length of strand material, should that be deemed desirable.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Treatment Of Fiber Materials (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (14)

1. Vorrichtung zur Hinzugabe flüssiger Stoffe zu Litzenmaterial S, wie beispielsweise Textilgarn, wenn'das Litzenmaterial S längs eines-festgelegten Weges (12) fortbewegt wird, mit einer von der Durchlaufgeschwindigkeit der Litze abhängigen Vorrichtung (15) zur Verarbeitung einer einzelnen Litze S sowie einem Zugabeteil (16) zur Zugabe flüssiger Stoffe im Durchlaufweg S, und mit einer Einrichtung, welche die Vorrichtung (15) zur Verarbeitung der Litze S und das Zugabeteil (16) funktionsmässig miteinander Koppelt um die Menge Zugabestoffes in Abhängigkeit von der Durchlaufgeschwindigkeit der Litze S zu verändern, dadurch gekennzeichnet, daß die Vorrichtung (15) zur Verarbeitung der Litze S imstande ist, ein elektrisches Signal zu erzeugen, welches der Durchlaufgeschwindigkeit der Litze S entspricht, und daß ein in seiner Geschwindigkeit veränderbarer elektrischer Antrieb (20) vorhanden ist, der funktionsmässig mit dem Zugabeteil (16) gekoppelt ist, damit die Zugabemengen in Abhängigkeit von der Geschwindigkeit des Antriebs (20) kontrolliert geändert werden können, und daß eine Signal-Verarbeitungsanlage vorgesehen ist, die funktionsmässig sowohl mit der Verarbeitungsvorrichtung (15) der Litze S elektrisch verbunden ist als auch mit dem Antrieb (20) zur kontrollierbaren Änderung der Geschwindigkeit des Antriebs (20) in Abhängigkeit von dem elektrischen Signal, welches durch das Verarbeitungsteil (15) der Litze (S) erzeugt wird.
2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Signal-Verarbeitungsanlage so beschaffen ist, daß sie ein Funktionssignal für den Antrieb (20) auslösen kann.
3. Vorrichtung nach den Ansprüchen 1 oder 2, dadurch gekennzeichnet, daß die Vorrichtung (15) zur Verarbeitung der Litze S eine Bremse (17) besitzt, um der Litze S während ihres Durchlaufs (12) eine Spannung zu verleihen.
4. Vorrichtung nach jedem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß das Zugabeteil (16) eine Rolle (18) besitzt, die im Durchlaufweg (12) der Litze drehbar angebracht ist.
5. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Rolle (18) in ihrer Umfangsfläche in Winkelform eingearbeitete Nuten besitzt, um die Schmiermittelzugabe zu verbessern.
6. Vorrichtung nach jedem der vorangegangenen Ansprüche, dadurch gekennzeichnet, daß sie einen Spindelantrieb (11) besitzt, der die Litze S längs des Weges (12) fortbewegt und der funktionsmässig mit dem Signalprozessor gekoppelt ist, welcher den Spindelantrieb (11) kontrolliert betätigt und so den kontinuierlichen Durchlauf der Litze S längs des Weges (12) kontrolliert unterbrechen kann.
7. Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß der Signalprozessor aufgrund des Signals der Vorrichtung (15) zur Verarbeitung der Litze S imstande ist, die Länge der Litze S festzustellen, die den Weg (12) durchläuft und einen Längenbegrenzer besitzt, der die Funktion des Spindelantriebs (11) unterbrechen kann, wenn die Länge die Litze S, die den Weg (12) durchlaufen hat, einen vorher festgelegten Wert erreicht.
8. Vorrichtung nach Anspruch 4, dadurch gekennzeichnet, daß die Bremse (17), welche der Litze eine Spannung verleiht, imstande ist, diese Spannung in Abhängigkeit von den Signalen aus dem Signalprozessor auf einstellbare Werte zu verändern.
9. Verfahren zur Zugabe flüssiger Stoffe zum Litzenmaterial S, wenn das Litzenmaterial längs eines vorher festgelegten Weges (12) bewegt wird, wobei das Litzenmaterial, welches sich mit Hilfe einer Vorrichtung (15), die auf die Durchlaufgeschwindigkeit der Litze S reagiert, fortbewegt und verarbeitet wird, und wobei ein Zugabeteil (16) im Bereich des Durchlaufweges (12) positioniert werden kann und die von der Geschwindigkeit der Litze S abhängige Vorrichtung (15) mit dem Zugabeteil funktionsmässig gekoppelt ist, um die Stoffzugabe in Abhängigkeit von der Durchlaufgeschwindigkeit der Litze zu verändern, dadurch gekennzeichnet, daß eine der Durchlaufgeschwindigkeit der Litze entsprechendes elektrisches Signal in der Vorrichtung (15) erzeugt wird, wodurch ein in seiner Geschwindigkeit veränderbarer Antrieb (20) ein Funktionssignal erhält und die Stoffzugabeeinrichtung (16) betätigt, wodurch die Menge der Stoffzugabe in Abhängigkeit von der Durchlaufgeschwindigkeit der Litze gesteuert wird.
10. Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß auf die fortbewegte Litze S eine einstellbare veränderliche Spannung ausgeübt wird.
11. Verfahren nach den Ansprüchen 9 oder 10, dadurch gekennzeichnet, daß die Litze S in einem Stoffzugabeteil (16) bearbeitet wird, welches eine Rolle (18) besitzt, die drehbar im Durchlaufweg (12) angebracht ist und durch einen Elektromotor (20), welcher durch das Antriebssignal gesteuert wird, mit unterschiedlichen Geschwindigkeiten angetrieben wird.
12. Verfahren nach Anspruch 11, dadurch gekennzeichnet, daß die Rolle (18) drehbar durch einen Behälter (19) mit flüssigem Zugabestoff geführt wird.
13. Verfahren nach jedem der Ansprüche 9 bis 12, dadurch gekennzeichnet, daß der kontinuierliche Durchlauf der Litze S längs des Weges (12) kontrolliert unterbrochen werden kann in Abhängigkeit von einem elektrischen Signal, welches im Signalprozessor zur Steuerung des Wickelantriebs (10, 11) verarbeitet wird.
14. Verfahren nach Anspruch 13, wobei der Signalprozessor imstande ist, dem elektrischen Eingangssignal ein Maß für die Länge der Litze S, die den Weg (12) durchlaufen hat, zu entnehmen und den Wickelantrieb (10, 11) abzuschalten, wenn eine vorher festgelegte Länge erreicht ist.
EP82306180A 1981-11-27 1982-11-19 Vorrichtung und Verfahren zum Schmieren von Garn Expired EP0080843B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82306180T ATE21376T1 (de) 1981-11-27 1982-11-19 Vorrichtung und verfahren zum schmieren von garn.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US32521581A 1981-11-27 1981-11-27
US325215 1981-11-27

Publications (3)

Publication Number Publication Date
EP0080843A2 EP0080843A2 (de) 1983-06-08
EP0080843A3 EP0080843A3 (en) 1984-01-18
EP0080843B1 true EP0080843B1 (de) 1986-08-13

Family

ID=23266924

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82306180A Expired EP0080843B1 (de) 1981-11-27 1982-11-19 Vorrichtung und Verfahren zum Schmieren von Garn

Country Status (3)

Country Link
EP (1) EP0080843B1 (de)
AT (1) ATE21376T1 (de)
DE (1) DE3272614D1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD241092B1 (de) * 1985-09-18 1988-12-28 Textiltech Forsch Verfahren zur steuerung des pflatschauftrages von waessrigen loesungen chemischer produkte
US4793035A (en) * 1987-09-28 1988-12-27 E. I. Du Pont De Nemours And Company Dynamic control of textile warp size add-on on a running slasher
JPH0625962A (ja) * 1990-09-13 1994-02-01 E I Du Pont De Nemours & Co 高い荷重効率の糸
DE4311619A1 (de) * 1993-04-08 1994-10-13 Sobrevin Vorrichtung zum Auftragen einer Flüssigkeit auf einen laufenden Faden
DE102006004067A1 (de) * 2006-01-28 2007-08-02 Saurer Gmbh & Co. Kg Vorrichtung zum Benetzen eines laufenden Fadens

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2053306A (en) * 1932-03-26 1936-09-08 Celanese Corp Means for applying liquid
GB545594A (en) * 1940-10-18 1942-06-03 American Viscose Corp Improvements in and apparatus for the liquid treatment of yarn and the like
BE629698A (de) * 1962-03-16
DE1460319A1 (de) * 1963-12-18 1969-06-12 Sucker Geb Verfahren und Vorrichtung zur Praeparierung eines fanden- oder bahnfoermigen Faserstoffes
CH455599A (de) * 1965-07-22 1968-07-15 Wirkmaschinenbau Karl Marx Veb Vorrichtung für Spulmaschinen, insbesondere Kreuzspulmaschinen, zum Benetzen des aufzuspulenden Fadens mittels einer die Netzflüssigkeit fördernden Rolle
GB1256898A (de) * 1968-10-30 1971-12-15

Also Published As

Publication number Publication date
EP0080843A3 (en) 1984-01-18
DE3272614D1 (en) 1986-09-18
EP0080843A2 (de) 1983-06-08
ATE21376T1 (de) 1986-08-15

Similar Documents

Publication Publication Date Title
DE3024095C2 (de)
US2624527A (en) Thread tensioning device
EP0630846B1 (de) Verfahren und Vorrichtung zur Fadenverlegung auf einer Spule mit einer genuteten Antriebswalze
DE19833703A1 (de) Verfahren und Vorrichtung zum Aufwickeln von kontinuierlich angeliefertem Spulgut zu einer Präzisionskreuzspule
ES8204390A1 (es) Perfeccionamientos en maquinas bobinadoras para arrollar ma-terial en forma de cordon sobre un carrete
EP0080843B1 (de) Vorrichtung und Verfahren zum Schmieren von Garn
EP0516696B1 (de) Führungsvorrichtung für eine maschine zum aufwickeln drahtförmiger güter
US4650133A (en) Winder apparatus and method
US3106354A (en) Apparatus and method for filament feed control
US3593508A (en) Apparatus for imparting a predetermined value of twist to a material
FI66325B (fi) Upplindningsmaskin foer upplindning av en traodartad lindningsprodukt pao en spole
US3847579A (en) Method of and apparatus for processing linear elements
DE19519542B4 (de) Verfahren und Vorrichtung zur Vermeidung von Bildwicklungen
SE461708B (sv) Anordning foer belaeggning av en loepande pappersbana paa baada sidor
US5740981A (en) Method of winding a yarn to a cross-wound package
US5014922A (en) Control means for apparatus for cross-winding packages
US4135679A (en) Means for controlling a wire discharged from a flyer payoff
US3765988A (en) Apparatus for packaging linear material
US4015559A (en) Apparatus for coating continuously produced filaments
US4379528A (en) Thread reeling apparatus
US6308907B1 (en) Method for winding up a thread
US4274604A (en) Winding machine
US4025026A (en) Apparatus and method for supplying constant tension material
US5385310A (en) Thread feed device
US4236373A (en) Traverse control system

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

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PUAL Search report despatched

Free format text: ORIGINAL CODE: 0009013

AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19840717

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Effective date: 19860813

REF Corresponds to:

Ref document number: 21376

Country of ref document: AT

Date of ref document: 19860815

Kind code of ref document: T

REF Corresponds to:

Ref document number: 3272614

Country of ref document: DE

Date of ref document: 19860918

ITF It: translation for a ep patent filed
ET Fr: translation filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: AT

Payment date: 19861124

Year of fee payment: 5

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19861130

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Effective date: 19881119

Ref country code: AT

Effective date: 19881119

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Effective date: 19881120

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Effective date: 19881130

Ref country code: CH

Effective date: 19881130

Ref country code: BE

Effective date: 19881130

BERE Be: lapsed

Owner name: WHITE EUGENE F.

Effective date: 19881130

Owner name: WHITE FRANCES H.

Effective date: 19881130

GBPC Gb: european patent ceased through non-payment of renewal fee
PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 19890731

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

EUG Se: european patent has lapsed

Ref document number: 82306180.9

Effective date: 19890726

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20011127

Year of fee payment: 20