EP0063102B1 - Apparatus for the knockdown of cast pieces - Google Patents
Apparatus for the knockdown of cast pieces Download PDFInfo
- Publication number
- EP0063102B1 EP0063102B1 EP82830008A EP82830008A EP0063102B1 EP 0063102 B1 EP0063102 B1 EP 0063102B1 EP 82830008 A EP82830008 A EP 82830008A EP 82830008 A EP82830008 A EP 82830008A EP 0063102 B1 EP0063102 B1 EP 0063102B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- barrel
- pieces
- lid
- discharge
- chute
- 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
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
- B22D31/002—Cleaning, working on castings
- B22D31/007—Tumbling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/02—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
Definitions
- the present invention relates to an apparatus according to the features of the precharacterising part of claim 1.
- the object of the present invention is to provide automatically-operating apparatus for the knockdown and the immediate subsequent separation and removal of the useful pieces from the parts detached therefrom so as to achieve the detachment of the risers and other parts progressively and without jamming, even for useful pieces of complex form, devoid of smoothness, and hence without damage to the useful pieces themselves.
- the apparatus of the present invention is consti- . tuted by a support framework 1, of metal sections, at the top of which is located a frame 2, also of metal sections, arranged to support for rotation a barrel 3 with its axis horizontal.
- the frame 2 is pivotally mounted at 4 on two rear pillars of the support framework 1 and, at its opposite end, is fixed to the front pillars of the framework 1 so as to be adjustable by means of two rods or plates 5, each of which is provided with an elongate slot 6 and is pivotally connected at one end to the frame 2; in each slot 6 is inserted a screw-threaded bolt or the like 7, fixed to the front pillars of the framework 1, and arranged to allow the locking of the rods 5 at a desired position and hence to allow the achievement of different inclinations of the frame 2 (and hence also of the barrel 3) with respect to the horizontal plane.
- the rotatable barrel 3 is cylindrical, in the form shown in the drawings, with a rear open end 8, to allow the loading of the pieces 4 for knockdown, and with the opposite end closed by a movable lid 9, mounted for axial movement away from the mouth of the barrel 3 by means, and for the reasons, which will be explained below.
- the barrel 3 is rotatably mounted on the inclinable frame 2 by means of pairs of driving rollers 10-11 (one pair on each longitudinal side of the frame 2); the rollers of each pair are connected to each other by a transmission shaft 12 and are mounted idly on support lugs 13-14 fixed to each longitudinal side of the frame 2.
- a motor 15 and a chain and gear transmission, generally indicated 16 in the drawings, are provided for rotating at least one pair of the rollers 10-11 whereby these latter rotate the barrel 3 by friction.
- the barrel may also have longitudinal raised ribs 17-18 etc. on its internal surface for the known function of improving and/or accelerating the detachment of the waste parts from the usable pieces.
- the movable lid 9 is mounted for axial translational movement relative to the mouth of the barrel 3 by means of an actuator device 19, operated by compressed air or the like, slidably mounted on a box support body 20 by means of a guide plate 21.
- the opening movements of the lid 9 are arrested by stops at distances which are predetermined in dependence on the shape or size of the pieces to be discharged separately from each other.
- the lid 9 is constituted by a disc-shaped body 22 forming the sealing means for mating with the edge of the barrel 3, to which disc body is fixed a cylinder 23 of smaller diameter than that of the interior of the barrel and peripherally provided with ribs or longitudinal projections 24-25 etc., equidistant from each other and arranged to form separate passages between each pair of ribs and the internal edge of the mouth of the barrel, the passages being of substantially labyrinthine form and variable width according to the degree of opening of the lid 9.
- a chute body 26 pivotally mounted on pins 27 supported by two opposite support plates 28.
- the chute 26 is made to oscillate about the pins 27 by a piston 27 operated by compressed air or hydraulically, which drives a crank 30 connected to a wall of the chute 26 or acts at the axis of rotation of the chute itself.
- the piston 29 can make the chute 26 oscillate so as to lower one or other of its opposite discharge ends alternately and hence allow the discharge of the product coming from the barrel 3 in two different directions, specifically onto two separate chutes 31 and 32.
- the chute 31 has a sieve bottom 33, with two collecting ducts 34 and 35 the first of which allows the discharge of the waste products of smaller size and the other the remaining pieces.
- the sieve chute 31 is provided with a vibratory drive 36 which, if required, can vibrate the sieve 31 to facilitate the sieving and separation of the products during their passage along the chute 31 itself.
- the apparatus is provided with a loading device, constituted by a chute or scoop 37, connected in orientable or oscillating manner to a cross member 38 which is mounted for vertical movement along two opposite uprights 39-40 by means of end rollers guided within guide rails formed along the internal faces of the uprights 39-40.
- the raising and lowering of the chute 37 is achieved by means of a geared motor 41 with a pulley which drives a chain 42 connected to the cross member 38.
- the inclination of the chute, loaded with products, in correspondence with the open loading mouth of the barrel is achieved by suitable known means not shown.
- a trap or pit 43 may be provided in the plane on which the apparatus rests and into which the chute can descend down to the level of the said plane.
- the knockdown operation occurs, as stated above, by the impact of the bodies introduced into the barrel due to the rotation thereof and, as the pieces become detached, as a result of the inclination of the barrel 3, the pieces will tend to move towards the lower end of the barrel where, if the lid 9 is slightly removed, ( Figure 2), the ribs 24-25 etc., will form, together with the lid, a sieve and allow the passage of the desired pieces only, retaining all the other pieces within the barrel.
- Figure 2 shows the apparatus with the lid 9 slightly open whereby the pieces are discharged onto the chute 32
- Figure 3 shows the position of discharge of the products of larger size by means of the chute 31, with the oscillating chute inclined towards the chute 31 itself.
- the vibratory sieve 31 allows this separation to be effected.
- the loading of the apparatus may also be made, as well as with the scoop 37, also by other means such as continuous belt conveyors, in which case it will be possible to feed two similar knockdown apparatuses alternately.
- the barrel may be formed with a polygonal, oval or other cross section
- the drive system for the oscillating chute may be achieved by other, analogous means
- the lid may also be perfectly flat, hemi-spherical or differently shaped.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
- Crushing And Grinding (AREA)
- Continuous Casting (AREA)
- Confectionery (AREA)
- Medicines Containing Plant Substances (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
Description
- The present invention relates to an apparatus according to the features of the precharacterising part of claim 1.
- Until now, in order to detach the useful pieces obtained by casting from the risers, that is from those parts of the cast material which have solidified in the ducts through which the molten material is introduced into the moulds at the end of the casing and then to separate the pieces from the risers themselves, tumbling or rotary barrels or even vibratory machines have been used which generally work discontinuously. One of these machines is described in the German patent No. DE-C-435,166, granted on 24th December, 1925 in the name of Deutsche Machinenfabrik.
- In known apparatus the detachment of the risers, runners and burrs from the useful pieces occurs due to the specific pressure of the useful pieces against each other and, when the operation is finished, the useful pieces and detached parts are conveyed onto sieving devices; in certain cases the useful pieces are separated manually since the risers, because of their particular irregular form and because of the friction which they present, do not slide easily in the sieving apparatus.
- The object of the present invention is to provide automatically-operating apparatus for the knockdown and the immediate subsequent separation and removal of the useful pieces from the parts detached therefrom so as to achieve the detachment of the risers and other parts progressively and without jamming, even for useful pieces of complex form, devoid of smoothness, and hence without damage to the useful pieces themselves.
- This object is achieved by an apparatus as set out above according to the features of the characterising part of claim 1. Modifications of the subject-matter of claim 1 are contained in the dependent claims 2 to 7.
- The constructional and functional characteristics of the knockdown and separating apparatus according to the invention will be more clearly understood from the following detailed description of a preferred but non- exclusive embodiment, the description being made with reference to the appended drawings given purely by way of example, in which:
- Figure 1 is a perspective view of knockdown apparatus according to the invention, complete in all its principal parts;
- Figure 2 is a lateral view of the apparatus of Figure 1, in a more schematic form, with the bottom or lid locked in a first position of opening, while
- Figure 3 shows, again from the side, the same apparatus, as the preceding figure, with the bottom arrested in a second position of opening.
- With reference to the drawings, the apparatus of the present invention is consti- . tuted by a support framework 1, of metal sections, at the top of which is located a frame 2, also of metal sections, arranged to support for rotation a barrel 3 with its axis horizontal. The frame 2 is pivotally mounted at 4 on two rear pillars of the support framework 1 and, at its opposite end, is fixed to the front pillars of the framework 1 so as to be adjustable by means of two rods or plates 5, each of which is provided with an
elongate slot 6 and is pivotally connected at one end to the frame 2; in eachslot 6 is inserted a screw-threaded bolt or the like 7, fixed to the front pillars of the framework 1, and arranged to allow the locking of the rods 5 at a desired position and hence to allow the achievement of different inclinations of the frame 2 (and hence also of the barrel 3) with respect to the horizontal plane. - The rotatable barrel 3 is cylindrical, in the form shown in the drawings, with a rear open end 8, to allow the loading of the
pieces 4 for knockdown, and with the opposite end closed by amovable lid 9, mounted for axial movement away from the mouth of the barrel 3 by means, and for the reasons, which will be explained below. The barrel 3 is rotatably mounted on the inclinable frame 2 by means of pairs of driving rollers 10-11 (one pair on each longitudinal side of the frame 2); the rollers of each pair are connected to each other by atransmission shaft 12 and are mounted idly on support lugs 13-14 fixed to each longitudinal side of the frame 2. Amotor 15 and a chain and gear transmission, generally indicated 16 in the drawings, are provided for rotating at least one pair of the rollers 10-11 whereby these latter rotate the barrel 3 by friction. The barrel may also have longitudinal raised ribs 17-18 etc. on its internal surface for the known function of improving and/or accelerating the detachment of the waste parts from the usable pieces. - The
movable lid 9 is mounted for axial translational movement relative to the mouth of the barrel 3 by means of anactuator device 19, operated by compressed air or the like, slidably mounted on abox support body 20 by means of aguide plate 21. - The opening movements of the
lid 9 are arrested by stops at distances which are predetermined in dependence on the shape or size of the pieces to be discharged separately from each other. - The
lid 9 is constituted by a disc-shaped body 22 forming the sealing means for mating with the edge of the barrel 3, to which disc body is fixed acylinder 23 of smaller diameter than that of the interior of the barrel and peripherally provided with ribs or longitudinal projections 24-25 etc., equidistant from each other and arranged to form separate passages between each pair of ribs and the internal edge of the mouth of the barrel, the passages being of substantially labyrinthine form and variable width according to the degree of opening of thelid 9. - Within the framework 1, beneath the discharge mouth of the barrel 3, is arranged a
chute body 26, pivotally mounted onpins 27 supported by twoopposite support plates 28. Thechute 26 is made to oscillate about thepins 27 by apiston 27 operated by compressed air or hydraulically, which drives acrank 30 connected to a wall of thechute 26 or acts at the axis of rotation of the chute itself. Hence thepiston 29 can make thechute 26 oscillate so as to lower one or other of its opposite discharge ends alternately and hence allow the discharge of the product coming from the barrel 3 in two different directions, specifically onto twoseparate chutes chute 31 has asieve bottom 33, with twocollecting ducts - The
sieve chute 31 is provided with avibratory drive 36 which, if required, can vibrate thesieve 31 to facilitate the sieving and separation of the products during their passage along thechute 31 itself. - The apparatus is provided with a loading device, constituted by a chute or
scoop 37, connected in orientable or oscillating manner to across member 38 which is mounted for vertical movement along two opposite uprights 39-40 by means of end rollers guided within guide rails formed along the internal faces of the uprights 39-40. The raising and lowering of thechute 37 is achieved by means of a gearedmotor 41 with a pulley which drives achain 42 connected to thecross member 38. The inclination of the chute, loaded with products, in correspondence with the open loading mouth of the barrel is achieved by suitable known means not shown. Finally, in order to facilitate the loading of thechute 37, a trap orpit 43 may be provided in the plane on which the apparatus rests and into which the chute can descend down to the level of the said plane. - The knockdown operation occurs, as stated above, by the impact of the bodies introduced into the barrel due to the rotation thereof and, as the pieces become detached, as a result of the inclination of the barrel 3, the pieces will tend to move towards the lower end of the barrel where, if the
lid 9 is slightly removed, (Figure 2), the ribs 24-25 etc., will form, together with the lid, a sieve and allow the passage of the desired pieces only, retaining all the other pieces within the barrel. After a predetermined time, by means of a command given by a central control unit of known type (not shown), the movable lid will be opened completely (Figure 3) and simultaneously thepiston 29 will make theoscillating chute 26 change its position so that the pieces remaining in the barrel (that is, the useful pieces) will be conveyed onto the other discharge chute. - More particularly, Figure 2 shows the apparatus with the
lid 9 slightly open whereby the pieces are discharged onto thechute 32, while Figure 3 shows the position of discharge of the products of larger size by means of thechute 31, with the oscillating chute inclined towards thechute 31 itself. - When the pieces also require deburring, the operation is carried out as follows:
- The deburring and knocking down are carried out with the lid of the barrel closed, so that the pieces which have already been broken off continue to knock against each other and against the internal ribs of the barrel and cause even the burrs to be knocked off, then the movable lid is opened to a desired extent to allow the passage and discharge of the waste pieces, and finally the
lid 9 is opened completely and theoscillating chute 26 is rotated simultaneously so as to allow the discharge of the pieces remaining in the barrel in the other direction. - When a further separation of the pieces which leave with the cover slightly withdrawn (or even completely withdrawn) is required, the
vibratory sieve 31 allows this separation to be effected. - The loading of the apparatus may also be made, as well as with the
scoop 37, also by other means such as continuous belt conveyors, in which case it will be possible to feed two similar knockdown apparatuses alternately. - Clearly, numerous modifications and variants may be made to the embodiment of the invention described above without thereby departing from the scope of protection of the invention itself; thus for example, the barrel may be formed with a polygonal, oval or other cross section, the drive system for the oscillating chute may be achieved by other, analogous means and the lid may also be perfectly flat, hemi-spherical or differently shaped.
Claims (7)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT82830008T ATE11239T1 (en) | 1981-04-06 | 1982-01-12 | DEVICE FOR FINISHING CASTINGS. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT20944/81A IT1139073B (en) | 1981-04-06 | 1981-04-06 | EQUIPMENT FOR THE SMATEROZZATURA OF CASTING PIECES AND THE SEPARATION OF THEM FROM MATERIALS, AND SIMILAR |
IT2094481 | 1981-04-06 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0063102A1 EP0063102A1 (en) | 1982-10-20 |
EP0063102B1 true EP0063102B1 (en) | 1985-01-16 |
Family
ID=11174420
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP82830008A Expired EP0063102B1 (en) | 1981-04-06 | 1982-01-12 | Apparatus for the knockdown of cast pieces |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0063102B1 (en) |
AT (1) | ATE11239T1 (en) |
DE (1) | DE3261863D1 (en) |
IT (1) | IT1139073B (en) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES8608982A1 (en) * | 1984-10-15 | 1986-09-01 | Metallgesellschaft Ag | Process and apparatus for smoothing, buffing and finishing metal components and work pieces. |
FR2629748A1 (en) * | 1988-04-07 | 1989-10-13 | Anoflex Raccords | Device for treating components, particularly as they leave a machining unit |
FR2659257A1 (en) * | 1990-03-08 | 1991-09-13 | Thonney Sa | DEBURRING MACHINE WITH ROTARY DRUM. |
GB0526558D0 (en) * | 2005-12-29 | 2006-02-08 | Snell Thomas B | Improvements relating to rotating devices |
CN110497302B (en) * | 2019-08-09 | 2021-04-06 | 江苏科技大学 | Rolling deburring equipment and deburring method thereof |
CN111408991B (en) * | 2020-04-03 | 2021-06-04 | 淮北市朗联新型建材有限公司 | Dry-mixed mortar grit raw materials processing apparatus |
CN112296859A (en) * | 2020-10-28 | 2021-02-02 | 张莲艳 | Table tennis surface finish equipment |
CN112589662A (en) * | 2020-12-08 | 2021-04-02 | 陕西拓日新能源科技有限公司 | Polishing grinding machine for transverse and longitudinal cutter blades |
CN113414091B (en) * | 2021-06-23 | 2022-08-19 | 新疆万林建设工程有限公司 | Grit screening sieve for building engineering |
CN114570634B (en) * | 2022-03-23 | 2022-12-23 | 天一建设发展有限公司 | Energy-concerving and environment-protective waste material screening plant for recycled concrete |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE435166C (en) * | 1925-12-24 | 1926-10-08 | Akt Ges Fa Deutsche Maschf | Device for desanding and separating pig iron ingots |
US2470340A (en) * | 1946-07-15 | 1949-05-17 | Almco Inc | Deburring and polishing apparatus |
GB1506532A (en) * | 1976-02-17 | 1978-04-05 | Mec Fond Spa | Devices for cooling castings and sand |
DE2756172A1 (en) * | 1977-12-16 | 1979-06-21 | Mtf Technik Ing Grad Hans Gert | Rotating drum for separating flash from plastics mouldings - has bars with shaped ends fitting in trapezoidal slots |
-
1981
- 1981-04-06 IT IT20944/81A patent/IT1139073B/en active
-
1982
- 1982-01-12 EP EP82830008A patent/EP0063102B1/en not_active Expired
- 1982-01-12 AT AT82830008T patent/ATE11239T1/en not_active IP Right Cessation
- 1982-01-12 DE DE8282830008T patent/DE3261863D1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ATE11239T1 (en) | 1985-02-15 |
EP0063102A1 (en) | 1982-10-20 |
IT1139073B (en) | 1986-09-17 |
DE3261863D1 (en) | 1985-02-28 |
IT8120944A0 (en) | 1981-04-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5082032A (en) | Volumetric packaging apparatus for frozen food and method | |
EP0063102B1 (en) | Apparatus for the knockdown of cast pieces | |
US5267603A (en) | Sand reclaiming drum with media recycler | |
US4115960A (en) | Method and apparatus for deflashing | |
US4194633A (en) | Adjustable conveyor | |
CN111776608A (en) | Feeding and noise reducing device for plate chain bucket elevator | |
US3981693A (en) | Finishing apparatus | |
EP0647489A1 (en) | Device for cleaning adhering material off sand | |
US4405090A (en) | Method and apparatus for reducing tires | |
CN211727420U (en) | Ultrasonic water gap removing equipment and die-casting production system | |
CN218697698U (en) | Shot blasting and rust removing device for improving surface quality of broadband stainless steel | |
CN114453341B (en) | Rolling type high-pressure gas dust removal equipment | |
JPS5836633B2 (en) | Rotating drum pneumatic sorting device | |
US4011691A (en) | Method and device for removal of fins from workpieces | |
US4614064A (en) | Method and apparatus for cleaning workpieces | |
US3662496A (en) | Apparatus for the vibratory finishing of workpieces | |
US4602771A (en) | Apparatus for casting refractory compositions | |
USRE30977E (en) | Method and apparatus for deflashing | |
US4012869A (en) | Reciprocal finishing apparatus | |
EP0806150A2 (en) | Demoulding device for moulding machine for chocolate or the same | |
US2343357A (en) | Abrasive removing apparatus | |
US4034520A (en) | Finishing apparatus having part-isolating means which is supported for vibration with the finishing chamber and carried along by contents thereof | |
US3831322A (en) | Continuous feed vibratory finishing machine with discharge rate controlled by operation of tub discharge closure | |
CN217661429U (en) | Playground stone and lime line drawing equipment | |
CN219028130U (en) | Crushing and screening device for plastic recycling and processing |
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 LI NL SE |
|
17P | Request for examination filed |
Effective date: 19821108 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH DE FR GB LI NL SE |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19850116 Ref country code: AT Effective date: 19850116 |
|
REF | Corresponds to: |
Ref document number: 11239 Country of ref document: AT Date of ref document: 19850215 Kind code of ref document: T |
|
REF | Corresponds to: |
Ref document number: 3261863 Country of ref document: DE Date of ref document: 19850228 |
|
ET | Fr: translation filed | ||
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 | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: CH Payment date: 19881216 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19890112 Year of fee payment: 8 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19890131 Year of fee payment: 8 Ref country code: BE Payment date: 19890131 Year of fee payment: 8 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19900112 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19900113 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Effective date: 19900131 Ref country code: CH Effective date: 19900131 Ref country code: BE Effective date: 19900131 |
|
BERE | Be: lapsed |
Owner name: RENI CIRILLO S.R.L. Effective date: 19900131 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19911213 Year of fee payment: 11 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19911231 Year of fee payment: 11 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19930930 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19931001 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
EUG | Se: european patent has lapsed |
Ref document number: 82830008.7 Effective date: 19901106 |