FR2653057A1 - Method of manufacturing a closed plastic ring intended for receiving keys - Google Patents
Method of manufacturing a closed plastic ring intended for receiving keys Download PDFInfo
- Publication number
- FR2653057A1 FR2653057A1 FR8913623A FR8913623A FR2653057A1 FR 2653057 A1 FR2653057 A1 FR 2653057A1 FR 8913623 A FR8913623 A FR 8913623A FR 8913623 A FR8913623 A FR 8913623A FR 2653057 A1 FR2653057 A1 FR 2653057A1
- Authority
- FR
- France
- Prior art keywords
- insert
- ring
- injection
- closed ring
- contact
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14754—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles being in movable or releasable engagement with the coating, e.g. bearing assemblies
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J17/00—Baby-comforters; Teething rings
- A61J17/02—Teething rings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61J—CONTAINERS SPECIALLY ADAPTED FOR MEDICAL OR PHARMACEUTICAL PURPOSES; DEVICES OR METHODS SPECIALLY ADAPTED FOR BRINGING PHARMACEUTICAL PRODUCTS INTO PARTICULAR PHYSICAL OR ADMINISTERING FORMS; DEVICES FOR ADMINISTERING FOOD OR MEDICINES ORALLY; BABY COMFORTERS; DEVICES FOR RECEIVING SPITTLE
- A61J17/00—Baby-comforters; Teething rings
- A61J17/10—Details; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14754—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles being in movable or releasable engagement with the coating, e.g. bearing assemblies
- B29C2045/1477—Removable inserts, e.g. the insert being peeled off after moulding
Landscapes
- Health & Medical Sciences (AREA)
- Pediatric Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
Description
La présente invention concerne un procédé de fabrication d'un anneau fermé dans lequel est inseré au moins un article présentant également une partie annulaire, laquelle est enfilée sur ledit anneau. The present invention relates to a method of manufacturing a closed ring in which is inserted at least one article also having an annular part, which is threaded on said ring.
Dans un mode de- réalisation spécifique, 1 #anneau est un anneau en matière plastique destiné à recevoir des clés qui sont également réalisées en matière plastique. In a specific embodiment, the ring is a plastic ring intended to receive keys which are also made of plastic.
L'article résultant constitué d'un anneau avec une pluralité de clés est vendu pour permettre aux jeunes enfants de mordiller les clés. The resulting article consisting of a ring with a plurality of keys is sold to allow young children to nibble the keys.
Dans les modes de réalisation selon l'art antérieur, le porte-clés en forme d'anneau fermé présente des points de faiblesse en raison des nécessaires zones de soudure destinées à refermer l'anneau. In the embodiments according to the prior art, the key ring in the form of a closed ring has points of weakness due to the necessary welding zones intended to close the ring.
Diverses solutions compliquées sont donc adoptées pour obtenir une fermeture solide de 1 anneau. Various complicated solutions are therefore adopted to obtain a solid closure of 1 ring.
A titre d'exemple, on a utilisé des rivets métalliques. Ceci implique un mode de fabrication onéreux et des difficultés dans les liaisons matière plastique-métal. As an example, metallic rivets were used. This implies an expensive manufacturing method and difficulties in plastic-metal connections.
On a également proposé d'utiliser des rivets en matière plastique. Dans ce cas, une partie de l'anneau comporte une partie en saillie tandis que la face correspondante présente un évidement. It has also been proposed to use plastic rivets. In this case, part of the ring has a projecting part while the corresponding face has a recess.
Cette solution n'est pas satisfaisante car la partie en saillie est rapidement détériorée, voire détruite et il n'est plus possible de refermer l'anneau. This solution is not satisfactory because the projecting part is rapidly deteriorated or even destroyed and it is no longer possible to close the ring.
Une soudure par ultra-sons de 1 anneau entraAne aussi des zones de faiblesse qui ne résistent pas à l'usage de l'anneau quand les jeunes enfants mordillent les clés. Welding by ultrasound of 1 ring also causes areas of weakness which do not resist the use of the ring when young children bite the keys.
L'anneau se brise, s'ouvre et n'est plus fermé. Il constitue alors un danger car un jeune enfant peut avaler une clé.The ring breaks, opens and is no longer closed. It is therefore dangerous because a young child can swallow a key.
Il serai t donc souhaitable de pouvoir disposer d'un anneau fermé continu ne présentant aucune zone de faiblesse pour la sécurité des jeunes enfants. It would therefore be desirable to be able to have a continuous closed ring that does not have any area of weakness for the safety of young children.
La présente invention remédie aux inconvénients précités en proposant un procédé de fabrication par injection de l'anneau fermé d'une conception à la fois simple et rationnelle. The present invention overcomes the aforementioned drawbacks by proposing a method of manufacturing by injection of the closed ring of a design that is both simple and rational.
Plus particulièrement, la présente invention a pour objet un procédé de fabrication d'un anneau fermé dans lequel est inséré au moins un article présentant également une partie annulaire, laquelle est enfilée sur ledit anneau qui est caractérisé en ce qu'il consiste:
(a) à prévoir un insert en deux parties délimitant
au moins un canal d'injection interne;
(b) à mettre en place le ou les articles préala
bu ment moulés sur 1 'extérieur de 1 ' insert
quand ses deux parties constitutives sont en
contact et en regard l'une de l'autre;
(c) à introduire l'insert dans un moule d' injec-
tion;;
(d) à réaliser l'injection de l'anneau tant dans
le moule que dans le canal d'injection interne
délimité par les deux parties de 1' insert tan
dis que le ou les articles sont disposés sur
la partie extérieure de 1' insert;
(e) à terminer l'injection de l'anneau et à dépla
cer le ou les articles situés sur la partie
extérieure de 1' insert pour qu'ils se trouvent
au contact de l'anneau fermé;
(f) à enlever l'insert du contact de l'anneau, ce
qui procure un anneau fermé continu sans aucun
moyen de fermeture dans lequel est enfilé au
moins un article annulaire.More particularly, the subject of the present invention is a method of manufacturing a closed ring in which is inserted at least one article also having an annular part, which is threaded onto said ring which is characterized in that it consists:
(a) to provide a two-part insert delimiting
at least one internal injection channel;
(b) to set up the preliminary article (s)
bu molded on the outside of the insert
when its two constituent parts are in
contact and facing each other;
(c) inserting the insert into an injection mold
tion ;;
(d) injecting the ring both into
the mold as in the internal injection channel
delimited by the two parts of the tan insert
say that the item (s) are arranged on
the outer part of the insert;
(e) complete injection of the ring and move
find the item (s) located on the part
outside of the insert so that they are
in contact with the closed ring;
(f) removing the contact insert from the ring, this
which provides a continuous closed ring without any
closure means in which is threaded
minus one annular item.
La présente invention concerne également les caractéristiques ci-après considérées isolément ou selon toutes leurs combinaisons techniquement possibles:
- chaque partie constitutive de 1' insert présente
un corps principal supérieur et inférieur pourvu de
part et d'autre de prolongements latéraux;
- pour la mise en contact de chaque partie de
1 ' insert, le corps principal supérieur comporte des
pions destinés à traverser des trous ménagés dans le
corps principal inférieur;
- chaque prolongement latéral renferme intérieure
ment une creusure formant canal d'injection quand les
deux parties de 1' insert sont au contact l'une de
autre;
- chaque prolongement latéral présente extérieure
ment en bout une partie saillante servant d'ergot de
retenue des articles à enfiler dans l'anneau fermé;;
- tant le corps principal supérieur que le corps
principal inférieur de l'insert comportent chacun deux
prolongements latéraux permettant l'obtention de deux
anneaux fermés;
- les articles et anneau sont en matière plasti
que;
- l'anneau fermé est un anneau en polyéthylène et
les articles sont des clés également en polyéthylène.The present invention also relates to the characteristics below considered in isolation or in all their technically possible combinations:
- each component part of the insert has
an upper and lower main body provided with
on either side of lateral extensions;
- for contacting each part of
1 insert, the upper main body has
pins intended to pass through holes in the
lower main body;
- each lateral extension contains interior
a hollow forming an injection channel when the
two parts of the insert are in contact with one of
other;
- each lateral extension has an exterior
at the end a protruding part serving as a lug
retention of articles to be threaded in the closed ring;
- both the upper main body and the body
lower main of the insert each have two
lateral extensions allowing the obtaining of two
closed rings;
- the articles and ring are made of plastic material
than;
- the closed ring is a polyethylene ring and
the articles are keys also in polyethylene.
Divers avantages et caractéristiques de la présente invention ressortiront aussi de la description détaillée ci-après faite en regard des dessins annexés sur lesquels:
Figure I est une vue en perspective d'un article obtenu selon l'invention.Various advantages and characteristics of the present invention will also emerge from the detailed description below made with reference to the appended drawings in which:
Figure I is a perspective view of an article obtained according to the invention.
Figure 2 est une vue de face de l'insert de moulage utilisé. Figure 2 is a front view of the molding insert used.
Figure 3 est une vue en élévation prise suivant la ligne III-III de la Figure 2. Figure 3 is an elevational view taken along line III-III of Figure 2.
Figure 4 est une vue de côté prise suivant la ligne IV-IV de la Figure 2. Figure 4 is a side view taken along line IV-IV of Figure 2.
Figure 5 est une vue de dessus de l'insert pendant une phase de moulage. Figure 5 is a top view of the insert during a molding phase.
Figure 6 est une vue de dessus de l'insert introduit dans un moule. Figure 6 is a top view of the insert introduced into a mold.
Aux dessins annexés où les mêmes symboles de réfé rence désignent des parties analogues, 1 désigne 1 article final obtenu par la mise en oeuvre du procédé de la présente invention. In the appended drawings where the same reference symbols designate similar parts, 1 designates 1 final article obtained by implementing the method of the present invention.
L'article 1 comprend un anneau fermé 2 dans lequel sont enfilées, comme illustré sur la Figure l, une pluralité de clés 3. La caractéristique essentielle de l'anneau fermé 2 est qu'il est continu et venu de moulage d'une seule pièce sans moyens de fermeture supplémentaires. The article 1 comprises a closed ring 2 in which are threaded, as illustrated in FIG. 1, a plurality of keys 3. The essential characteristic of the closed ring 2 is that it is continuous and comes from molding in one piece without additional closing means.
La Figure 2 illustre un exemple d'un outil susceptible de permettre l'obtention de anneau fermé 2 avec des clés 3 enfilées dans celui-ci. Figure 2 illustrates an example of a tool capable of obtaining a closed ring 2 with keys 3 threaded therein.
Dans cet exemple de réalisation, il s'agit d'un insert de moulage 4. L'insert 4 est en deux parties. Il présente une partie supérieure 5 et une partie inférieure 6. In this embodiment, it is a molding insert 4. The insert 4 is in two parts. It has an upper part 5 and a lower part 6.
Chaque partie supérieure 5 et inférieure 6 comprend un corps principal 7, 8 et des prolongements latéraux 9, 10, 11, 12.Each upper part 5 and lower part 6 comprises a main body 7, 8 and lateral extensions 9, 10, 11, 12.
Dans l'exemple de mise en oeuvre selon la Figure 2, chaque partie supérieure et inférieure 5, 6 est munie de deux prolongements latéraux 9, 10, 11, 12 de part et d'autre de chaque corps principal 7, 8. In the example of implementation according to FIG. 2, each upper and lower part 5, 6 is provided with two lateral extensions 9, 10, 11, 12 on either side of each main body 7, 8.
Les parties internes des prolongements latéraux 9, 10, 11, 12 comprennent une saignée ou creusure délimitant avec la saignée ou creusure correspondante de l'autre partie des canaux d'injection 13, 14, 15, 16. The internal parts of the lateral extensions 9, 10, 11, 12 comprise a groove or recess delimiting with the corresponding recess or recess of the other part of the injection channels 13, 14, 15, 16.
Des pions 21, 22 destinés à permettre la fermeture de l'insert 4 sont assujettis à la partie supérieure 5. Ces pions 21, 22 traversent des trous correspondants prévus dans la partie inférieure 6 et assurent la mise en contact des parties supérieure 5 et inférieure 6. Pins 21, 22 intended to allow the closure of the insert 4 are subject to the upper part 5. These pins 21, 22 pass through corresponding holes provided in the lower part 6 and ensure the contacting of the upper parts 5 and lower 6.
Les creusures internes de chaque partie supérieure et inférieure sont alors en vis-à-vis. The internal recesses of each upper and lower part are then opposite.
Chaque prolongement latéral présente extérieurement en bout une partie saillante servant d'ergot de retenue 17, 18, 19, 20 des clés 3. Ces ergots de retenue 17, 18, 19, 20 assurent le maintien des clés 3 sur l'extérieur d'un pro longement latéral pendant la phase d'injection de l'anneau 2 tant dans le moule 23 que dans les canaux d'injection formés par les creusures internes des prolongements latéraux 9, 10, 11, 12. Each lateral extension has externally at the end a projecting portion serving as a retaining lug 17, 18, 19, 20 of the keys 3. These retaining lugs 17, 18, 19, 20 ensure the maintenance of the keys 3 on the outside of a lateral extension during the injection phase of the ring 2 both in the mold 23 and in the injection channels formed by the internal recesses of the lateral extensions 9, 10, 11, 12.
C'insert 4 est représenté sur la Figure 2 en position semi-ouverte. This insert 4 is shown in Figure 2 in the semi-open position.
La Figure 3 montre la structure interne de la partie supérieure 5 de la Figure 2. On voit particulièrement bien la fonction des creusures internes formant canal d'injection 13, 14 dans chaque prolongement latéral 9, 10 du corps principal 7. Les ergots de retenue 17, 18 sont également bien visibles sur cette Figure 3. Figure 3 shows the internal structure of the upper part 5 of Figure 2. We can see particularly well the function of the internal recesses forming injection channel 13, 14 in each lateral extension 9, 10 of the main body 7. The retaining pins 17, 18 are also clearly visible in this Figure 3.
La Figure 4 est une vue de côté de l'insert 4 également en position semi-ouverte. Cette Figure 4 permet de voir très nettement la coopération des creusures internes pour la formation des canaux d'injection. Figure 4 is a side view of the insert 4 also in the semi-open position. This Figure 4 makes it possible to see very clearly the cooperation of the internal recesses for the formation of the injection channels.
La Figure 5 est une vue de dessus qui montre une étape de mise en oeuvre du procédé de l'invention quand les clés 3 sont disposées sur l'extérieur de l'insert 4. A ce moment, l'anneau 2 est injecté tant dans le moule 23 que dans l'insert 4 qui est appliqué dans le moule 23. Figure 5 is a top view which shows a step in implementing the method of the invention when the keys 3 are arranged on the outside of the insert 4. At this time, the ring 2 is injected both into the mold 23 as in the insert 4 which is applied in the mold 23.
Dans l'exemple illustré, on fabrique simultanément deux anneaux 2 de part et d'autre des prolongements latéraux 9, 10. Il est bien certain que 1' insert 4 pourrait comporter seulement un prolongement d'un côté ou de l'autre du corps principal 7 et non pas deux prolongements comme cela est illustré sur la Figure 5. In the example illustrated, two rings 2 are produced simultaneously on either side of the lateral extensions 9, 10. It is quite certain that the insert 4 could comprise only an extension on one side or the other of the body main 7 and not two extensions as illustrated in Figure 5.
La Figure 6 il lustre, de façon très schématique, insert 4 introduit dans un moule 23 pendant la phase d'injection de l'anneau 2 tandis que les clés 3 sont également maintenues sur l'extérieur des prolongements latéraux 9, 10 du corps principal supérieur 7 de 1' insert 4. Figure 6 it shines, very schematically, insert 4 introduced into a mold 23 during the injection phase of the ring 2 while the keys 3 are also maintained on the outside of the lateral extensions 9, 10 of the main body upper 7 of the insert 4.
On décrit ci-après un mode pratique de réalisation de la présente invention. A practical embodiment of the present invention is described below.
En tout premier lieu, on fabrique plusieurs types de clés 3 dont les parties annulaires fermées sont de diverses configurations. First of all, several types of keys 3 are made, the closed annular parts of which are of various configurations.
Les clés 3 sont appliquées sur l'extérieur de l'insert 4 quand les parties supérieure 5 et inférieure 6 sont en contact. Les pions 21 et 22 servent à réunir les parties supérieure 5 et inférieure 6 de l'insert 4 et au maintien de cet insert 4 dans le moule 23. Lorsque les clés 3 sont comme indiqué plus haut, on procède à l'injection de l'anneau 2 tant dans le moule 23 que dans l'insert 4 qui sert pratiquement de tunnel de moulage. Après la fin de l'injection, on désolidarise l'insert 4 du moule 23, on fait passer les clés 3 de l'extérieur de l'insert 4 sur l'anneau injecté 2. Lorsque toutes les clés sont sur l'anneau 2, il est alors possible de désolidariser les deux parties constitutives de l'insert 4, c'est-à-dire la partie supérieure 5 et la partie inférieure 6. On peut alors retirer l'anneau fermé 2 dans lequel sont enfilées les clés 3. The keys 3 are applied to the outside of the insert 4 when the upper 5 and lower 6 parts are in contact. The pins 21 and 22 are used to join the upper 5 and lower 6 parts of the insert 4 and to hold this insert 4 in the mold 23. When the keys 3 are as indicated above, the injection of the ring 2 both in the mold 23 and in the insert 4 which practically serves as a molding tunnel. After the end of the injection, the insert 4 is detached from the mold 23, the keys 3 are passed from the outside of the insert 4 onto the injected ring 2. When all the keys are on the ring 2 , it is then possible to separate the two constituent parts of the insert 4, that is to say the upper part 5 and the lower part 6. It is then possible to remove the closed ring 2 in which the keys 3 are threaded .
L'anneau fermé obtenu 2 ne comporte aucune faiblesse, aucun moyen de fermeture extérieur tels que rivets, soudures, boutons-pression, rivures etc.. The closed ring obtained 2 has no weaknesses, no external closing means such as rivets, welds, snaps, rivets, etc.
Cet anneau fermé 2 est parfaitement uniforme et très résistant. This closed ring 2 is perfectly uniform and very resistant.
On constate que la mise en oeuvre du procédé de la présente invention conduit à un objet ne présentant aucun danger pour les utilisateurs, ce procédé étant très pratique et très avantageux. It is found that the implementation of the method of the present invention leads to an object presenting no danger to users, this method being very practical and very advantageous.
L'invention n'est pas limitée aux modes de réalisation représentés et décrits en détails et diverses modifications peuvent y être apportées sans sortir de son cadre. The invention is not limited to the embodiments shown and described in detail and various modifications can be made thereto without departing from its scope.
Les signes de référence insérés après les caractéristiques techniques mentionnées dans les revendications, ont pour seul but de faciliter la compréhension de ces dernières, et n'en limitent aucunement la portée. The reference signs inserted after the technical characteristics mentioned in the claims, have the sole purpose of facilitating the understanding of the latter, and in no way limit their scope.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8913623A FR2653057B1 (en) | 1989-10-18 | 1989-10-18 | METHOD FOR MANUFACTURING A CLOSED RING IN PLASTIC MATERIAL FOR RECEIVING KEYS. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8913623A FR2653057B1 (en) | 1989-10-18 | 1989-10-18 | METHOD FOR MANUFACTURING A CLOSED RING IN PLASTIC MATERIAL FOR RECEIVING KEYS. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2653057A1 true FR2653057A1 (en) | 1991-04-19 |
| FR2653057B1 FR2653057B1 (en) | 1992-02-07 |
Family
ID=9386519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8913623A Expired - Fee Related FR2653057B1 (en) | 1989-10-18 | 1989-10-18 | METHOD FOR MANUFACTURING A CLOSED RING IN PLASTIC MATERIAL FOR RECEIVING KEYS. |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2653057B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2550216B (en) * | 2016-05-14 | 2019-04-03 | Rihal Ravinder | Teething Ring |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2432870A (en) * | 1944-02-25 | 1947-12-16 | George J Evalt | Plastic ring and method of making the same |
| FR1267946A (en) * | 1960-06-16 | 1961-07-28 | Plastic chain molding process | |
| DE8805066U1 (en) * | 1987-05-13 | 1988-06-01 | Otte Ifw Inf Formen |
-
1989
- 1989-10-18 FR FR8913623A patent/FR2653057B1/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2432870A (en) * | 1944-02-25 | 1947-12-16 | George J Evalt | Plastic ring and method of making the same |
| FR1267946A (en) * | 1960-06-16 | 1961-07-28 | Plastic chain molding process | |
| DE8805066U1 (en) * | 1987-05-13 | 1988-06-01 | Otte Ifw Inf Formen |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2550216B (en) * | 2016-05-14 | 2019-04-03 | Rihal Ravinder | Teething Ring |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2653057B1 (en) | 1992-02-07 |
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