GB1599187A - Seat for vehicles - Google Patents

Seat for vehicles Download PDF

Info

Publication number
GB1599187A
GB1599187A GB2956280A GB2956280A GB1599187A GB 1599187 A GB1599187 A GB 1599187A GB 2956280 A GB2956280 A GB 2956280A GB 2956280 A GB2956280 A GB 2956280A GB 1599187 A GB1599187 A GB 1599187A
Authority
GB
United Kingdom
Prior art keywords
blocking
seat
seat according
retractor
lever
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
GB2956280A
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.)
Autoflug GmbH
Original Assignee
Autoflug GmbH
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 Autoflug GmbH filed Critical Autoflug GmbH
Publication of GB1599187A publication Critical patent/GB1599187A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/43—Safety locks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/4207—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces
    • B60N2/4214—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats characterised by the direction of the g-forces longitudinal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
    • B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
    • B60N2/24—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles
    • B60N2/42—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles for particular purposes or particular vehicles the seat constructed to protect the occupant from the effect of abnormal g-forces, e.g. crash or safety seats
    • B60N2/427—Seats or parts thereof displaced during a crash
    • B60N2/42772—Seats or parts thereof displaced during a crash characterised by the triggering system
    • B60N2/4279—Seats or parts thereof displaced during a crash characterised by the triggering system electric or electronic triggering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/18—Anchoring devices
    • B60R22/26—Anchoring devices secured to the seat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/40—Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/41—Belt retractors, e.g. reels self-locking in an emergency with additional means for preventing locking during unwinding under predetermined conditions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/40—Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement
    • B60R2022/401—Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement with adjustable sensor
    • B60R2022/402—Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement with adjustable sensor automatically adjustable to keep a vertical position, e.g. irrespective of seat or vehicle tilting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R22/00—Safety belts or body harnesses in vehicles
    • B60R22/34—Belt retractors, e.g. reels
    • B60R22/36—Belt retractors, e.g. reels self-locking in an emergency
    • B60R22/40—Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement
    • B60R2022/401—Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement with adjustable sensor
    • B60R2022/402—Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement with adjustable sensor automatically adjustable to keep a vertical position, e.g. irrespective of seat or vehicle tilting
    • B60R2022/403—Belt retractors, e.g. reels self-locking in an emergency responsive only to vehicle movement with adjustable sensor automatically adjustable to keep a vertical position, e.g. irrespective of seat or vehicle tilting using externally controlled means, e.g. linked with seat back hinge

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Transportation (AREA)
  • Automotive Seat Belt Assembly (AREA)
  • Seats For Vehicles (AREA)

Description

PATENT SPECIFICATION
( 11) 1 599187 Application No 29562 '80 ( 22) Filed 22 Dec 1977 ( 19) Divided Out of No 1 599 186 Convention Application No 2 658 747 ( 32) Filed 24 Dec 1976 in Fed Rep of Germany (DE)
Complete Specification published 30 Sept 1981
INT CL A 62 B 35/02 Index at acceptance A 3 V 5 H ( 54) IMPROVEMENTS IN SEATS FOR VEHICLES ( 71) We, AUTOFLUG G m b H, a German company of Industriestrasse 10, 2084 Rellingen 2, Germany, do hereby declare the invention, for which we pray that a patent may be granted to us, and the method by which it is to be performed, to be particularly described in and by the following statement: -
This invention relates to safety belts, particularly though not exclusively for motor vehicles, of the kind including an automatic reeling mechanism of the vehicle-sensitive or belt-sensitive type The invention relates particularly to adjustable seats, i e those whose back and/or seat portion is adjustable in position, which are provided with such a safety belt.
It is known to fasten the automatic mechanism directly on the vehicle, for example, on the vehicle floor If however the mechanism includes a belt-sensitive blocking device, and a person buckled in the seat adjusts the vehicle seat in a direction in which the belt is pulled out of the reel, the beltsensitive system can cause blocking of the automatic mechanism when the pull-out acceleration exceeds a certain amount.
Equally if the automatic reeling mechanism is mounted on the vehicle seat, and the seat is adjustably moved with an acceleration above a predetermined level, again the blocking mechanism can actuate preventing any paying out of the belt by the reeling mechanism.
Thus, discomfort to an occupant of that seat may arise when adjusting the seat, and it is an object of this invention to overcome this difficulty.
According to the invention there is provided an adjustable seat having a safety belt connected to a vehicle-sensitive and/or belt-sensitive automatic retractor, including means for automatically preventing blocking of the actuator on adjustment of the seat.
Thus the provision of such automatic blocking preventing means renders the blocking mechanism of the retractor inoperative during adjustment of the seat and the aforementioned difficulties overcome.
The blocking preventing means may 'be actuated in a number of ways, but where an adjustment lever is provided on the seat, this is preferably used to actuate the means.
Thus in one embodiment the blocking preventing means includes a sliding block inter 55 acting with a blocking pin to prevent engagement of a blocking member with a thrust ring of the retractor The sliding block may be connected to one end of a Bowden cable, the other end being connected to said lever 60 In another embodiment sliding of said block may be effected by an electromagnet actuated by said lever.
In a further embodiment, the blocking preventing means comprises an electro 65 magnet coil acting directly or indirectly on a blocking member engageable with a toothed wheel of the retractor The electromagnet coil may be actuated by a switch associated with said lever For example said 70 coil may include an armature magnetically cooperating with a portion of the blocking member, or the coil may include a movable armature adapted to block operation of the blocking member Furthermore, the coil 75 may be magnetically coupled to a ball of the retractor when vehicle-sensitive so as to prevent movement of the ball.
In order that the invention may be readily understood, certain embodiments thereof 80 will now be described by way of example with reference to the accompanying drawings, in which:Fig 1 shows a first embodiment of the invention in which the automatic retractor is 85 mounted on a longitudinally displaceable seat rail in a vehicle, Fig 2 is a sectional view to a larger scale of the embodiment of Fig 1, Fig 3 shows a second embodiment of the 90 invention which the retractor is mounted on the floor of a vehicle, Fig 4 is a schematic view of the inside of the retractor of Fig 3, Fig 5 shows an alternative arrangement 95 to that of Fig 4, and Fig 6 shows yet a further alternative arrangement.
As seen in Fig 1 there is a vehicle seat having a seat portion 15 and a back portion 100 13 and which are associated with a safety belt 22 which is automatically retractable ( 21) ( 62) ( 31) ( 33) ( 44) ( 51) ( 52) 1,599,187 into a retractor 21 The seat is adjustable between a position shown and the positions shown in dotted lines, and adjustment lever serving to permit adjustment of the seat in a manner known per se.
The lever 80 is connected to a Bowden cable 79 the other end of which is connected to the retractor 21 When the adjustment lever 80 is actuated, blocking of the automatic retractor is prevented in a manner to be described, so that no blocking of the safety belt occurs which would cause discomfort to the occupant of the seat The belt may be smoothly withdrawn from the retractor.
Turning to Figure 2 there is shown one embodiment of blocking preventing means.
The wire core 78 of Bowden cable 79 is connected to a sliding block 82 guided in a cover 81 of the automatic mechanism 21, which block is displaced in such a way that with its operative face 83 it displaces a blocking pin 84 into a recess 85 of a blocking element 86 In the blocking position the blocking element 86 is no longer able to be applied to a thrust ring 87 and, consequently, cause blocking of the automatic mechanism.
If the seat lever 80 is released, the sliding block 82 slides back and frees the blocking pin 84 which is pulled by a cup spring 88 or the like out of the recess 85 so that the blocking element 86 can operate again.
The figures do not show that in an equivalent way the sliding block 82 can be actuated by an electromagnet controllable via a switch on the seat adjusting lever 80 Likewise the direct influence of an electromagnet on the blocking pin 84 is not shown If the above-described compensating device is operated electrically, it is independent of the fitting position inside or outside the seat.
This also applies to electric control of the vehicle sensitive system 25, as shown in Figs 3 to 6 In these cases also, a specific positioning of the automatic mechanism 21 is not absolutely essential.
Fig 3 shows the retractor 21 mounted on the floor of the vehicle behind the seat In this case the seat adjusting lever 89 is associated with a switch 90 such that when lever 89 is actuated to enable the seat to be adjusted, switch 90 is closed allowing current to flow to the blocking device.
Turning now to Fig 4 there is shown one embodiment of the retractor 21 used in Fig.
3 The retractor is vehicle-sensitive the blocking member 92 being actuated by a ball 93 on deceleration of the vehicle to enqaae a toothed wheel 95 to block the retractor The blocking member 92 which is mounted on a bracket 25 also has a further arm having a magnetic member 94 mounted thereon Adjacent this arm is mounted an electromagnet 91 whose windings are excited by means of the switch 90 Thus, when lever 89 is operated to alter the seat position, the blocking member 92 is automatically prevented from engaging the wheel 95 so that the retractor does not lock.
A modified embodiment is shown in Fig.
where the electromagnet 91 has a movable armature which on excitement of the electromagnet is drawn downwardly to abut against raised portion 97 formed on the member 92 Again therefore blocking of the belt is automatically prevented when the electromagnet 91 is excited by the switch 90.
In Fig 6, the electromagnet 91 acts directly on the deceleration sensitive ball 93 preventing it from moving to engage the member 92 with the wheel 95 upon movement of the seat.

Claims (1)

  1. WHAT WE CLAIM IS: -
    1 An adjustable seat having a safety belt 85 connected to a vehicle-sensitive and/or belt-sensitive automatic retractor, including means for automatically preventing blocking of the actuator on adjustment of the seat.
    2 A seat according to claim 1 in which 90 the blocking preventing means is actuated by an adjustment lever of the seat.
    3 A seat according to claim 1 or 2 in which the blocking preventing means includes a sliding block interacting with a 95 blocking pin to prevent engagement of a blocking member with a thrust ring of the retractor.
    4 A seat according to claims 2 and 3 in which said sliding block is connected to one 100 end of a Bowden cable, the other end being connected to said lever.
    A seat according to claims 2 and 3 in which sliding of said block is effected by an electromagnet actuated by said lever 105 6 A seat according to claim 1 or 2 in which the blocking preventing means comprises an electromagnet coil acting directly or indirectly on a blocking member engageable with a toothed wheel of the retractor 110 7 A seat according to claims 2 and 6 in which said electromagnet coil is actuated by a switch associated with said lever.
    8 A seat according to claim 6 or 7 in which said coil includes an armature mag 115 netically cooperating with a portion of the blocking member.
    9 A seat according to claim 6 or 7 in which said coil includes a movable armature adapted to block operation of the blocking 120 member.
    A seat according to claim 6 or 7 in 1,599,187 which said coil is magnetically coupled to a ball of the retractor when vehicle-sensitive so as to prevent movement of the ball.
    11 Adjustable seats substantially as herein described by way of example with reference to the accompanying drawings.
    For the Applicants, FRANK B DEHN & CO, Chartered Patent Agents, Imperial House, 15-19 Kingsway, London WC 2 B 6 UZ.
    Printed for Her Majesty's Stationery Office by Burgess & Son (Abingdon), Ltd -1981.
    Published at The Patent Office, 25 Southampton Buildings, London, WC 2 A l AY, from which copies may be obtained.
GB2956280A 1976-12-24 1977-12-22 Seat for vehicles Expired GB1599187A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762658747 DE2658747C2 (en) 1976-12-24 1976-12-24 Seat belt system

Publications (1)

Publication Number Publication Date
GB1599187A true GB1599187A (en) 1981-09-30

Family

ID=5996566

Family Applications (3)

Application Number Title Priority Date Filing Date
GB5352377A Expired GB1599186A (en) 1976-12-24 1977-12-22 Seats for vehicles
GB2956280A Expired GB1599187A (en) 1976-12-24 1977-12-22 Seat for vehicles
GB3012780A Expired GB1599188A (en) 1976-12-24 1977-12-22 Seats for vehicles

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB5352377A Expired GB1599186A (en) 1976-12-24 1977-12-22 Seats for vehicles

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB3012780A Expired GB1599188A (en) 1976-12-24 1977-12-22 Seats for vehicles

Country Status (3)

Country Link
DE (1) DE2658747C2 (en)
FR (1) FR2391872B1 (en)
GB (3) GB1599186A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2220128A (en) * 1988-06-17 1990-01-04 Honda Motor Co Ltd Seat belt tightening system incorporated with a vehicle seat
US4978087A (en) * 1987-11-10 1990-12-18 Britax-Kolb Gmbh & Co. Acceleration sensor for vehicle-sensitive systems

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US4235455A (en) * 1979-04-12 1980-11-25 Ford Motor Company Vehicle seat belt retractor mechanism
FR2484937B1 (en) * 1980-06-23 1985-06-07 Peugeot DEVICE FOR FIXING A SEAT BELT REEL ON A VEHICLE SEAT
FR2511959A1 (en) * 1981-08-27 1983-03-04 Peugeot Inertial vehicle seat belt mounting - has reel pivotally attached to squab of vehicle seat via two resilient arms
JPS58122241A (en) * 1982-01-13 1983-07-20 Nissan Motor Co Ltd Locking mechanism of seat belt winding device
GB2126476B (en) * 1982-09-02 1985-08-07 Hawtal Whiting Design & Eng Vehicle seat
DE3410297A1 (en) * 1984-03-21 1986-01-02 Daimler-Benz Ag, 7000 Stuttgart Motor vehicle seat, the seat cushion and/or backrest of which are adjustable in inclination
DE3441532A1 (en) * 1984-11-14 1986-05-15 Autoflug GmbH & Co Fahrzeugtechnik, 2084 Rellingen Self-locking belt retractor especially for passive safety belt systems in motor vehicles
GB8521413D0 (en) * 1985-08-28 1985-10-02 Autoliv Dev Seat belt
US4936600A (en) * 1986-08-18 1990-06-26 Nippon Seiko Kabushiki Kaisha Passive seat belt system
DE3824164A1 (en) * 1988-07-16 1990-01-25 Bayerische Motoren Werke Ag SAFETY BELT ARRANGEMENT ON AN INCLINATION ADJUSTABLE MOTOR VEHICLE SEAT
DE4022571A1 (en) * 1989-07-28 1991-02-07 Autoflug Gmbh SAFETY BELT SYSTEM WITH VEHICLE SENSOR CHANGEABLE ON THE BELT REEL
FR2657053A1 (en) * 1990-01-12 1991-07-19 Renault Adjustable motor vehicle seat
EP0455858B1 (en) * 1990-05-11 1993-12-01 Trw Repa Gmbh Mechanical control device for a tensioning device mounted on a vehicle seat
DE4315072C2 (en) * 1993-05-06 1995-03-09 Autoliv Dev Acceleration sensor for vehicle sensitive systems
JPH07242156A (en) * 1994-01-11 1995-09-19 Tokai Rika Co Ltd Acceleration sensor control device
DE19500722A1 (en) * 1995-01-12 1996-07-18 Trw Repa Gmbh Sensor for a seat belt retractor
DE19528153C1 (en) * 1995-08-02 1997-01-16 Autoliv Dev Seat belt retractor with inclination compensation for the vehicle-sensitive sensor
US5791582A (en) * 1995-08-02 1998-08-11 Autoliv Development Ab Safety belt reeling device with inclination compensation for the vehicle-sensitive sensor
DE19528387C2 (en) * 1995-08-02 1998-04-09 Autoliv Dev Seat belt retractor with inclination compensation for the vehicle-sensitive sensor
DE19531491C2 (en) * 1995-08-26 1997-08-07 Autoliv Dev Seat belt retractor with inclination compensation for the vehicle-sensitive sensor
JP3465519B2 (en) * 1997-02-18 2003-11-10 タカタ株式会社 Seat belt equipment
DE19717689B4 (en) * 1997-04-28 2006-09-07 C. Rob. Hammerstein Gmbh & Co. Kg Gurtintegralsitz a motor vehicle with a retractor for the safety belt and a controlling this sensor
GB2326813B (en) * 1997-07-01 2001-03-14 Autoliv Dev Improvements in or relating to an acceleration detector
HRPK20030597B3 (en) * 2003-07-23 2007-10-31 Paulana D.O.O. Automotive seat with integrated three-point safety belt metal foam design
DE102007046271A1 (en) 2007-09-20 2009-04-02 Sitech Sitztechnik Gmbh Belt integrated seat for motor vehicle, has seat part and backrest, which are connected with each other by inclination adjustment device, where inclination adjustment device is formed by base structure
JP4931891B2 (en) * 2008-10-09 2012-05-16 本田技研工業株式会社 Vehicle seat
US11400839B2 (en) * 2020-09-22 2022-08-02 Ford Global Technologies, Llc Energy absorbing vehicle seat
DE102023104728A1 (en) 2023-02-27 2024-08-29 Autoliv Development Ab Belt retractor and vehicle seat

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DE1430468A1 (en) * 1964-03-11 1968-11-28 Autoflug Gerhard Sedlmayr Gmbh Safety seat, especially for motor vehicles
CH487009A (en) * 1968-03-01 1970-03-15 R Weber Georges Rétracteur à verrouillage d'urgence pour ceinture de sécurité
GB1419620A (en) * 1972-03-06 1975-12-31 Nat Res Dev Vehicle ans safety device for same
FR2271849B1 (en) * 1974-05-24 1977-06-24 Peugeot Aciers Et Outillage
GB1514483A (en) * 1974-06-10 1978-06-14 Auto Restraint Syst Ltd Seat-belt apparatus
US3995788A (en) * 1974-07-10 1976-12-07 Allied Chemical Corporation Vehicle sensitive retractor with improved universal pendulum and gimbal
US3973786A (en) * 1975-03-28 1976-08-10 General Motors Corporation Belt retractor with winding prevention mechanism
GB1550181A (en) * 1975-04-18 1979-08-08 Kangol Magnet Ltd Vehicle seat belt retractors and to vehicles with seat belt retractors
JPS581943B2 (en) * 1975-04-30 1983-01-13 株式会社デンソー Seat belt makitorisouchi
FR2313087A1 (en) * 1975-06-02 1976-12-31 Lafont Raymond SELF-ADJUSTING DEVICE FOR THE AUTOMATIC LOCKING OF THE SEAT BELT REELS

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4978087A (en) * 1987-11-10 1990-12-18 Britax-Kolb Gmbh & Co. Acceleration sensor for vehicle-sensitive systems
GB2220128A (en) * 1988-06-17 1990-01-04 Honda Motor Co Ltd Seat belt tightening system incorporated with a vehicle seat
GB2220128B (en) * 1988-06-17 1992-10-07 Honda Motor Co Ltd Seat belt tightening system incorporated with a vehicle seat

Also Published As

Publication number Publication date
FR2391872A1 (en) 1978-12-22
FR2391872B1 (en) 1985-12-13
GB1599186A (en) 1981-09-30
GB1599188A (en) 1981-09-30
DE2658747A1 (en) 1978-06-29
DE2658747C2 (en) 1986-01-30

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19941222