GB2091173A - Apparatus for heating pneumatic tyre assemblies under pressure - Google Patents
Apparatus for heating pneumatic tyre assemblies under pressure Download PDFInfo
- Publication number
- GB2091173A GB2091173A GB8200754A GB8200754A GB2091173A GB 2091173 A GB2091173 A GB 2091173A GB 8200754 A GB8200754 A GB 8200754A GB 8200754 A GB8200754 A GB 8200754A GB 2091173 A GB2091173 A GB 2091173A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hub
- tank
- pneumatic tyre
- periphery
- base
- 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.)
- Granted
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 20
- 230000000712 assembly Effects 0.000 title description 2
- 238000000429 assembly Methods 0.000 title description 2
- 239000012528 membrane Substances 0.000 claims abstract description 50
- 239000012530 fluid Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims description 7
- 238000005485 electric heating Methods 0.000 claims description 5
- 230000008030 elimination Effects 0.000 claims description 2
- 238000003379 elimination reaction Methods 0.000 claims description 2
- 238000012216 screening Methods 0.000 claims 1
- 238000004073 vulcanization Methods 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
- B29D30/54—Retreading
- B29D30/542—Retreading using envelopes or membranes provided with sealings for curing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0662—Accessories, details or auxiliary operations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/52—Unvulcanised treads, e.g. on used tyres; Retreading
- B29D30/54—Retreading
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0662—Accessories, details or auxiliary operations
- B29D2030/0666—Heating by using fluids
- B29D2030/0667—Circulating the fluids, e.g. introducing and removing them into and from the moulds; devices therefor
- B29D2030/0669—Circulating the fluids, e.g. introducing and removing them into and from the moulds; devices therefor the fluids being circulated by a turbine type pump associated with the mould, e.g. positioned in the mould
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Tyre Moulding (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Apparatus for heating pneumatic tyres to be repaired or retreaded comprises a circular tank (1) made up of a base (2) and a hinged cover (3); a hub (4) integral with the base (2); a first flexible membrane (6) positioned between the hub (4) and the periphery (2') of the base (2); and a second flexible membrane (6') positioned between the periphery (31) of the cover and an annular support (3'') integral with the cover (3). In use a tyre P is mounted on the hub (4) between the two membranes (6, 6') which are forced against the tyre by pressurized fluid admitted via pipes (10A, 10B) to chambers (10, 10'). Pressurized fluid passes to the tyre interior (12) via inlet (12A) and apertures (4') in the hub and is heated by electric elements (9) and a fan (8) within the hub. Chamber (11) at the exterior of the tyre crown receives fluid under pressure via inlet (11A) and is heated by an electric element (14) and a fan (13). The fans and/or heating elements are controlled by a thermostatic regulator C. <IMAGE>
Description
SPECIFICATION
Apparatus for heating pneumatic tyre assemblies under pressure
This invention relates to apparatus in which parts of a pneumatic tyre composed of vulcanisable rubber are held in contact with one another and heated under pressure by means of a heat-carrying fluid to vulcanise the rubber thereby causing the parts to adhere firmly to each other. The apparatus is suitable for use in retreading pneumatic tyres as well in the repair of pneumatic tyres.
In order that the bond between the parts of a pneumatic tyre which must be adhered to one another is firm, it is essential to avoid any heatcarrying fluid penetrating between the parts. The means most generally used to prevent such a penetration comprises a flexible shell, membrane or film, generally made of elastomeric material, which covers at least the area of the interface between the parts of the pneumatic tyre which contact each other.
United States Patent Specification No. 4 111 732 discloses an apparatus for the retreading of pneuma tictyres in which such a membrane is provided. In this apparatus, heating is effected by a liquid, which involves a relatively complex installation of pipes, connections and valves. Another disadvantage of this known apparatus is that the membrane or membranes used are applied not only against the sidewalls of the pneumatic tyre, in the area of the interface between the parts which are to be bonded to one another by vulcanisation, but also against the tread of the pneumatic tyre over its entire width.In the case of a pre-moulded tread which has grooves, the membrane which surrounds this tread cannot reach the bottom of these grooves and accordingly the pressure is not uniform over the whole width of the tread, which can lead to adhesion defects.
German Offenlegungsschrift No. 2343282 discloses a method and a retreading device which operates without using any membrane. However, the disadvantage of this method and device is the risk that the fluid for heating under pressure which surrounds the pneumatic tyre may manage to infiltrate between the parts of the tyre which are to be joined to one another by vulcanisation, and the fact that it is impossible to carry out the vulcanisation of a repair under good conditions, particularly in the region of the sidewalls of the pneumatic tyre.
French Patent Specification No. 2 184515 discloses a method and an apparatus for the vulcanisation of pneumatic tyres using hot air circulated in the interior of the pneumatic tyre by a fan arranged on the axis of rotation of the pneumatic tyre. A disadvantage of this apparatus is that it can only receive pneumatic tyres all having identical dimensions because it is made up of rigid mould parts. In addition, the fact that the heated air is only in contact with the internal wall of the pneumatic tyre requires longer dwell in the apparatus compared with apparatus when heating is also provided against the external wall of the pneumatictyre.
It is an object of the present invention to provide a method of bonding parts of a pneumatic tyre of vulcanisable rubber to one another and an apparatus for heating such parts of a pneumatic tyre under pressure in which the above disadvantages are substantially reduced or eliminated.
Therefore according to one aspect of the invention there is provided apparatus in which parts of a pneumatic tyre composed of vulcanisable rubber are held in contact with one another and heated under pressure to vu Icanise the rubber firmly bonding said parts together, the apparatus comprising the following features::
(a) a circular tank supported in a frame comprising a base and a circular cover hinged to said base,
(b) a cylindrical hub forming a mounting rim for the pneumatic tyre to be treated, which hub is integral and concentric with the base of the tank and comprises on its periphery, openings for the circulation of gas,
(c) a first flexible crown shaped membrane positioned between the exterior periphery of the hub and the periphery of the base of the tank, said membrane being spaced from the base of the tank and generally parallel to the base,
(d) a second flexible crown shaped membrane positioned between the periphery of the cover and an annular support which is integral with the interior face of the cover, coaxial to the hub and forming a rim flange, and being spaced at an axial distance from the first membrane and from the interior face of the cover and being generally parallel to the latter, the distance between the two membranes defining the axial direction a chamber to receive the pneumatic tyre to be heated,
(e) the annular space comprising between the base of the tank, the first membrane and the hub, and the annular space comprising between the cover, the second membrane and the annular support forming a rim flange, are connected to a source of fluid under pressure,
(f) a fan and an electric heating element are arranged in the hub, coaxially therewith,
(g) afan is arranged atthetopofthetank between the base and the cover of the tank and mid-way between the two membranes,
(h) an electric heating element is arranged along the periphery of the tank on the interior of the latter, between the two membranes, and
(i) when a pneumatictyre is in position on the hub, in the receiving chamber defined between the two membranes, it subdivides this chamber into an annular compartment comprised between the crown of the pneumatic tyre, the two flexible membranes and the periphery of the tank and a central compartment situated radially on the interior of the annular compartment and delimited by the interior of the pneumatic tyre and the hub, each of these two compartments being connected independently of the other to a source of fluid under pressure.
Preferably, the apparatus additionally comprises heating regulation controlled, for example, by thermostats placed at diametrically opposite points of the tank, in the region in which the gas is circulated by the fans.
The invention will now be described with refer pence to the accompanying drawings, in which:
Figure 7 is a radial section, of a heating tank according to the invention, having therein a pneumatic tyre to be treated, and
Figure 2 is a view, on a smaller scale, of the interior of the tank according to Figure 1, without the pneumatic tyre.
A circular tank 1, comprises a base 2 on which a cover 3 is articulated about a vertical axis, the tank being supported vertically in a frame A shown in
Figure 2.
The base 2 comprises a cylindrical hub 4 to carry the pneumatic tyre P which is to be treated, the geometric axis 5 of the hub, which is also that of the tank 1 as a whole, being horizontai. The interior face 3' of the cover 3 comprises an annular rib 3" coaxially with this hub, the interior diameter of which corresponds substantially to the exterior diameter of the hub 4. In order to receive pneumatic tyres having beads P"' with a diameter greater than that of the hub 4, intercalary rings (not shown) may be interposed between the beads and the hub.
An annular membrane 6 parallel as a whole to the base 2 and spaced therefrom extends between the periphery 2' of the base 2 and the hub 4, whilst another annular membrane 6' parallel as a whole to the cover 3 and spaced therefrom extends between the periphery 31 of the cover 3 and the annular rib 3".
The membranes 6 and 6' face one another and are at a distance one from the other which corresponds approximately to the greatest axial width of the pneumatic tyre P. The space between these two membranes constitutes the chamber to receive the pneumatic tyre.
The hub 4 comprises, on its periphery, opening 4' so that the interior of the pneumatic tyre P communicates with the chamber 4" of the hub 4, this chamber being delimited by the periphery of the latter and by two partitions 7 and 7' parallel to the median plane
X-X' of the tank. In this chamber 4" a fan 8 coaxial to the hub, and heating elements 9 are accommodated.
The annular space 10 comprised between the membrane 6, the base 2 of the tank, the periphery 2' of this base and the hub 4 is, like the annular space 10' comprised between the other membrane 6', the cover 3, the periphery 3' of the cover and the annular rib 3", connected to a source of fluid under pressure via connecting pipes 1 OA and 1 OB respectively, which fluid under pressure acts to flatten the membranes 6,6' against the pneumatic tyre P. When a tyre such as P is in position on the hub 4, between the membranes 6,6', its crown Ps subdivides the chamber comprised between the two membranes and the periphery 1' of the tank into two compartments 11 and 12.The compartment 11 is annular and adjacent to the periphery 1', whereas the compartment 12, situated radially on the interior of the crown
P2 of the pneumatic tyre, communicates with the chamber 4" of the hub 4. Each of these two compartments 11 and 12 is connected independently of the other to a source of fluid under pressure, via connecting pipes 11 A and 1 2A respectively.
A fan 13 is installed at the top of the compartment 11 radially on the interior of a heating element 14 which, in this example, extends around the entire
periphery of the tank 1.
In order to ensure that the heating temperature is
not much higher in the upper part of the compart
ment 11 than in the lower part of said compartment, a rigid annular thermal screen 15 is interposed between the heating element 14 and the crown Ps of the pneumatic tyre, the screen comprising perforations 15', the number andlor dimension of which
increase fron the high part (top half) to the low part (bottom half) of the annular compartment 11. In addition, the fans 8 and 13 and/or the heating elements 9 and 14 are connected to a thermostatic regulation box C which controls these fans and/or elements as a function of temperatures registered at the top and base of compartment 11 and in compartment 12, by thermo-sensors (not shown), which are connected to the input E of the box C.
In orderto ensure that the flexible membranes 6,6' appiy themselves thoroughly against against the carcass P" and the edges of the tread P' of the pneumatic tyre P under the effect of the pressure of the fluid introduced into the annular spaces 10, 10', it is preferable for the membranes to be as thin as possible in the region which is intended to come to contact with the zone along which the edges of the tread P' of the pneumatic tyre adhere to the carcass
P" of the tyre. However, in the region of the beads P"' of the pneumatic tyre, it is preferable for the membranes to be thicker, as shown in Figure 1, so that they are able to withstand the rigours to which they are subjected.In addition, in order to ensure that it is possible for these two crown shaped membranes to properly assume the exterior shape of the carcass P" of the pneumatic tyre, their developed radial width between their exterior periphery and their interior periphery is greater than the difference D between the radius R of their peripheral exterior attachment zone and the radius r of their peripheral interior attachment zone. Also, a drainage system known per se (not shown) connected to a source of vacuum may be provided between the membranes and the sidewalls P" of the pneumatic tyre P to ensure the elimination of gas between the membranes (6,6'), the sidewalls (P") and the edges of the tread (P').
The pneumatic tyre P, fitted on the hub 4 between the two membranes 6,6', receives hot gas against the exterior periphery of its crown P', originating from the heating element 14 and the fan 13, and against the periphery of its interior wall, originating from the heating element 9 and the fan 8, whilst the annular spaces 10, 10' and the compartment 11 are maintained under a pneumatic pressure substantially equal to that prevailing in compartment 12.
When the heating of the pneumatic tyre istermin- ated, the atmosphere pressure is restored in the entire tank, the cover 3 of which can then be opened, to which membrane 6' is fixed. The pneumatic tyre P can then be withdrawn from the hub 4 and the next pneumatic tyre can be mounted on the hub.
Claims (8)
1. Apparatus in which parts of a pneumatic tyre composed of vulcanisable rubber are held in contact with one another and heated under pressure to vulcanise the rubber firmly bonding said parts together the apparatus comprising the following features:
(a) a circular tank supported in a frame and comprising a base and a circular cover hinged to said base,
(b) a cylindrical hub forming a mounting rim for the pneumatic tyre to be treated, which hub is integral and concentric with the base of the tank and comprises on its periphery, openings for the circuiation of gas,
(c) a first flexible crown shaped membrane positioned between the exterior periphery of the hub and the periphery of the base of the tank, said membrane being spaced from the base of the tank and generally parallel to the base,
(d) a second flexible crown shaped membrane positioned between the periphery of the cover and an annular support which is integral with the interior face of the cover, coaxial to the hub and forming a rim flange, and being spaced at an axial distance from the first membrane and from the interior face of the cover and being generally parallel to the latter, the distance between the two membranes defining in the axial direction a chamber to receive the pneumatic tyre to be heated,
(e) the annular space comprised between the base of the tank, the first membrane and the hub, and the annular support forming a rim flange, are connected to a source of fluid under pressure,
(f) a fan and an electric heating element are arranged in the hub, coaxiallytherewith, (g) a fan is arranged at the top of the tank between the base and cover of the tank and mid-way between the two membranes,
(h) an electric heating element is arranged along the periphery of the tank on the interior of the latter, between two membranes, and
(i) when a pneumatic tyre is in position on the hub, in the receiving chamber defined between the two membranes, it subdivides this chamber into an annular compartment comprised between the crown of the pneumatic tyre, the two flexible membranes and the periphery of the tank and a central compartment situated radially on the interior of the annular compartment and delimited by the interior of the pneumatic tyre and the hub, each of these two compartments being connected independently of the other to a source of fluid under pressure.
2. Apparatus as claimed in Claim 1, in which the crown shaped membranes are of a thickness which diminishes from their interior periphery towards their exterior periphery.
3. Apparatus as claimed in Claim 1 or Claim 2, which additionally comprises a central control of the fans and of the electric heating elements connected to thermal sensors positioned in the tank.
4. Apparatus as claimed in any preceding claim, which additionally comprises an annular thermal screen comprising perforations, the number and/or dimension of which increases from the upper part towards the lower part of the tank, said screening being positioned between the hub and the heating element, closer to the latter than to the hub.
5. Apparatus for treating a pneumatic tyre as claimed in Claim 1, substantially as herein described with reference to the accompanying drawings.
6. A method of vulcanising parts of a pneumatic tyre composed of vulcanisable rubber which are held in contact against one another to firmly bond said parts in which the pneumatic tyre is mounted on the hub and inserted between the membranes of an apparatus as claimed in any preceding claim, hot gas is applied to the exterior periphery of the crown of the tyre originating from the fan and element (g) and (h) in Claim 1, hot gas is applied to the periphery of its interior wall originating from the heating element and fan (f) in Claim 1,fluid under pressure is applied to the annular spaces (e) in Claim 1, and the two compartments (i) in Claim 1 such that the pneumatic pressure is substantially equal in each of said spaces and compartments.
7. A method as claimed in Claim 6, in which a means of drainage, connected to a vacuum source, is operated to ensure the elimination of gas from the space comprised between the membranes, the sidewalls of the pneumatic tyre and the edges of the tread.
8. A method as claimed in Claim 6 substantially as herein described.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8100705A FR2497723A1 (en) | 1981-01-14 | 1981-01-14 | Tyre consolidation and vulcanisation mould - using hot pneumatic pressure via sidewall membranes and direct pressure within and circumferentially |
| FR8120626A FR2515572A2 (en) | 1981-01-14 | 1981-11-02 | PROCESS FOR VULCANIZING PNEUMATIC PARTS IN CONTACT WITH OTHERS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB2091173A true GB2091173A (en) | 1982-07-28 |
| GB2091173B GB2091173B (en) | 1984-09-19 |
Family
ID=26222188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB8200754A Expired GB2091173B (en) | 1981-01-14 | 1982-01-12 | Apparatus for heating pneumatic tyre assemblies under pressure |
Country Status (16)
| Country | Link |
|---|---|
| JP (1) | JPS57188339A (en) |
| AR (1) | AR225387A1 (en) |
| AT (1) | AT387748B (en) |
| AU (1) | AU546585B2 (en) |
| BE (1) | BE891628A (en) |
| BR (1) | BR8200182A (en) |
| CH (1) | CH645572A5 (en) |
| DE (1) | DE3200943C2 (en) |
| DK (1) | DK12682A (en) |
| ES (1) | ES8302529A1 (en) |
| FR (1) | FR2515572A2 (en) |
| GB (1) | GB2091173B (en) |
| IT (1) | IT1154406B (en) |
| LU (1) | LU83873A1 (en) |
| NL (1) | NL8200073A (en) |
| SE (1) | SE8200129L (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0686492A1 (en) * | 1994-06-09 | 1995-12-13 | Sedepro | Tyre vulcanisation by supplying heat from the inside |
| WO2015073022A1 (en) * | 2013-11-15 | 2015-05-21 | Compagnie Generale Des Etablissements Michelin | Methods of forming a retreaded tire using a degassing operation |
| FR3015349A1 (en) * | 2013-12-23 | 2015-06-26 | Michelin & Cie | METHOD FOR RETRIEVING A TIRE BY MEANS OF HOT AIR |
| FR3028444A1 (en) * | 2014-11-19 | 2016-05-20 | Michelin & Cie | DEVICE AND METHOD FOR VULCANIZING TIRES |
| WO2016037602A3 (en) * | 2014-09-09 | 2016-05-26 | Klaus-Dieter Nies | Device for insulating a container containing a tire pressing or vulcanizing mold |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5400182B2 (en) * | 2012-01-11 | 2014-01-29 | 株式会社神戸製鋼所 | Vulcanizer |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE755056A (en) * | 1969-11-10 | 1971-02-01 | Schelkmann Wilhelm | VULCANIZATION PROCESS. |
| US3729358A (en) * | 1970-07-06 | 1973-04-24 | C Barefoot | Apparatus for retreading tires |
| US3752726A (en) * | 1971-04-16 | 1973-08-14 | C Barefoot | Apparatus for retreading tires |
| US3770858A (en) * | 1971-09-10 | 1973-11-06 | Mcneil Corp | Method for retreading tires |
| FR2184515A1 (en) * | 1972-05-19 | 1973-12-28 | Kobe Machinery O Ltd | Vulcanising pneumatic tyres - using turbulent heated gas stream in mould cavity |
| DE2343282A1 (en) * | 1973-08-28 | 1975-03-13 | Fritz Vesper | Retreading tyres by pressing tread onto carcase - with pressurised hot gas surrounding combination of carcase and tread |
| US4111732A (en) * | 1974-03-22 | 1978-09-05 | Macmillan Kenneth T | Process of and molds for applying precured rubber tires and other objects |
| US3919020A (en) * | 1974-07-19 | 1975-11-11 | Goodyear Tire & Rubber | Method of retreading a tire |
| DE2555013A1 (en) * | 1975-12-06 | 1977-06-08 | Continental Gummi Werke Ag | Vulcanising mould for renewing tyre treads - is standard tyre mould with tread segments removed forming circumferential heating chamber |
| US4175991A (en) * | 1977-11-14 | 1979-11-27 | Harrelson Rubber Company | Tire retreading method |
-
1981
- 1981-11-02 FR FR8120626A patent/FR2515572A2/en active Granted
- 1981-12-28 BE BE0/206937A patent/BE891628A/en not_active IP Right Cessation
-
1982
- 1982-01-06 IT IT67009/82A patent/IT1154406B/en active
- 1982-01-11 NL NL8200073A patent/NL8200073A/en not_active Application Discontinuation
- 1982-01-12 SE SE8200129A patent/SE8200129L/en not_active Application Discontinuation
- 1982-01-12 AR AR288095A patent/AR225387A1/en active
- 1982-01-12 GB GB8200754A patent/GB2091173B/en not_active Expired
- 1982-01-13 LU LU83873A patent/LU83873A1/en unknown
- 1982-01-13 ES ES508673A patent/ES8302529A1/en not_active Expired
- 1982-01-13 AU AU79487/82A patent/AU546585B2/en not_active Ceased
- 1982-01-14 DK DK12682A patent/DK12682A/en not_active Application Discontinuation
- 1982-01-14 DE DE3200943A patent/DE3200943C2/en not_active Expired
- 1982-01-14 JP JP57004772A patent/JPS57188339A/en active Pending
- 1982-01-14 CH CH21282A patent/CH645572A5/en not_active IP Right Cessation
- 1982-01-14 AT AT0012082A patent/AT387748B/en not_active IP Right Cessation
- 1982-01-14 BR BR8200182A patent/BR8200182A/en unknown
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0686492A1 (en) * | 1994-06-09 | 1995-12-13 | Sedepro | Tyre vulcanisation by supplying heat from the inside |
| FR2720972A1 (en) * | 1994-06-09 | 1995-12-15 | Sedepro | Vulcanization of tires: intake of calories from the inside. |
| US5683643A (en) * | 1994-06-09 | 1997-11-04 | Sedepro | Vulcanization of tires by imparting heat from the inside |
| WO2015073022A1 (en) * | 2013-11-15 | 2015-05-21 | Compagnie Generale Des Etablissements Michelin | Methods of forming a retreaded tire using a degassing operation |
| CN106414045A (en) * | 2013-11-15 | 2017-02-15 | 米其林集团总公司 | Methods of forming a retreaded tire using a degassing operation |
| CN106414045B (en) * | 2013-11-15 | 2019-10-08 | 米其林集团总公司 | The method to form retreads is operated using degasification |
| FR3015349A1 (en) * | 2013-12-23 | 2015-06-26 | Michelin & Cie | METHOD FOR RETRIEVING A TIRE BY MEANS OF HOT AIR |
| WO2015097370A1 (en) * | 2013-12-23 | 2015-07-02 | Compagnie Generale Des Etablissements Michelin | Method for retreading a tyre using warm air |
| WO2016037602A3 (en) * | 2014-09-09 | 2016-05-26 | Klaus-Dieter Nies | Device for insulating a container containing a tire pressing or vulcanizing mold |
| FR3028444A1 (en) * | 2014-11-19 | 2016-05-20 | Michelin & Cie | DEVICE AND METHOD FOR VULCANIZING TIRES |
| WO2016079249A1 (en) * | 2014-11-19 | 2016-05-26 | Compagnie Generale Des Etablissements Michelin | Device and method for vulcanizing tyres |
| US10124550B2 (en) | 2014-11-19 | 2018-11-13 | Compagnie Generale Des Etablissements Michelin | Device and method for vulcanizing tires |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2515572A2 (en) | 1983-05-06 |
| CH645572A5 (en) | 1984-10-15 |
| AT387748B (en) | 1989-03-10 |
| NL8200073A (en) | 1982-08-02 |
| ATA12082A (en) | 1988-08-15 |
| AR225387A1 (en) | 1982-03-15 |
| AU546585B2 (en) | 1985-09-05 |
| DE3200943A1 (en) | 1982-09-16 |
| IT8267009A0 (en) | 1982-01-06 |
| DK12682A (en) | 1982-07-15 |
| BE891628A (en) | 1982-04-16 |
| FR2515572B2 (en) | 1984-06-01 |
| LU83873A1 (en) | 1982-05-07 |
| IT1154406B (en) | 1987-01-21 |
| JPS57188339A (en) | 1982-11-19 |
| ES508673A0 (en) | 1982-12-01 |
| SE8200129L (en) | 1982-07-15 |
| GB2091173B (en) | 1984-09-19 |
| AU7948782A (en) | 1983-07-21 |
| DE3200943C2 (en) | 1984-08-09 |
| ES8302529A1 (en) | 1982-12-01 |
| BR8200182A (en) | 1982-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 19940112 |