BE1024248B1 - SEAL FOR FLEXIBLE QUICK COUPLING - Google Patents

Abstract

This invention relates to a sealing ring (1) for a Camlock coupling, wherein the ring (1) comprises an inner ring (3) and an outer ring (2) made of a different elastomeric material, the inner (3) and outer ring (2) ) are mechanically connected to each other.

Description

(30) Priority data:

(73) Holder (s):

INNO-MOLD NV 9120, BEVEREN Belgium (72) Inventor (s):

LAUREYS Eddy 9120 BEVEREN Belgium

LAUREYS Mario 9120 BEVEREN Belgium (54) SEALING RING FOR FLEXIBLE QUICK COUPLING (57) This invention relates to a sealing ring (1) for a Camlock coupling, the ring (1) comprising an inner ring (3) and an outer ring (2) made of a different elastomer material, the inner (3) and outer (2) rings being mechanically connected to each other

Fig »1

BELGIAN INVENTION PATENT

FPS Economy, K.M.O., Self-employed & Energy

Publication number: 1024248 Filing number: BE2016 / 5414

Intellectual Property Office International Classification: F16J 15/10 F16L 17/067 F16J 15/3252 F16L 37/113 F16L 37/18 F16L 37/252 Date of Issue: 08/01/2018

The Minister of Economy,

Having regard to the Paris Convention of 20 March 1883 for the Protection of Industrial Property;

Having regard to the Law of March 28, 1984 on inventive patents, Article 22, for patent applications filed before September 22, 2014;

Having regard to Title 1 Invention Patents of Book XI of the Economic Law Code, Article XI.24, for patent applications filed from September 22, 2014;

Having regard to the Royal Decree of 2 December 1986 on the filing, granting and maintenance of inventive patents, Article 28;

Having regard to the application for an invention patent received by the Intellectual Property Office on 03/06/2016.

Whereas for patent applications that fall within the scope of Title 1, Book XI, of the Code of Economic Law (hereinafter WER), in accordance with Article XI.19, § 4, second paragraph, of the WER, the granted patent will be limited. to the patent claims for which the novelty search report was prepared, when the patent application is the subject of a novelty search report indicating a lack of unity of invention as referred to in paragraph 1, and when the applicant does not limit his filing and does not file a divisional application in accordance with the search report.

Decision:

Article 1

INNO-MOLD NV, Doornpark 54, 9120 BEVEREN Belgium;

represented by

CHIELENS Kristof, Pres. Kennedypark 31c, 8500, KORTRIJK;

OSTYN Frans, Pres. Kennedypark 31c, 8500, KORTRIJK;

HOSTENS Veerle, Pres. Kennedypark 31c, 8500, KORTRIJK;

CARDOON Annelies, Pres. Kennedypark 31c, 8500, KORTRIJK;

a Belgian invention patent with a term of 20 years, subject to payment of the annual taxes as referred to in Article XI.48, § 1 of the Code of Economic Law, for: SEAL FOR FLEXIBLE QUICK COUPLING.

INVENTOR (S):

LAUREYS Eddy, Bankstraat 31, 9120, BEVEREN;

LAUREYS Mario, Doornpark 54, 9120, BEVEREN;

PRIORITY:

BREAKDOWN:

Split from basic application: Filing date of the basic application:

Article 2. - This patent is granted without prior investigation into the patentability of the invention, without warranty of the Merit of the invention, nor of the accuracy of its description and at the risk of the applicant (s).

Brussels, 08/01/2018,

With special authorization:

BE2016 / 5414

SEAL FOR FLEXIBLE QUICK COUPLING

This invention relates to a sealing ring for a Camlock coupling. The invention particularly relates to a sealing ring for a Camlock coupling according to EN 14420-7 and TW couplings according to EN 14420-6.

Camlock couplings are flexible quick couplings suitable for quickly connecting and disconnecting hose connections. The Camlock system includes a male part, a sealing ring and a female part with two levers. When both parts are pushed together and the handles are closed, a leak-free connection is obtained.

Such couplings are increasingly used in the chemical, pharmaceutical and food industries, where virtually full chemical resistance is required. This requirement in combination with a pressure density of up to 16 bar operating pressure implies a soft seal based on an elastomer. Only high-quality, expensive chemically inert elastomer sealing rings are eligible for this.

Different types of sealing rings are already known and are available in two main series. The first series concerns the sealing rings which are made entirely of the same specific elastomeric material and which must always fill the entire sealing cavity. This leads to solid seals (rings) with a high elastomer mass, which is not economically responsible for high-quality rubber grades, such as perfluoroelastomer. To reduce costs, a second series of seals was developed for this purpose, in which a sealing ring made of a relatively cheap elastomer was coated with an (expensive) fluoroplastic. The ring provides flexibility and sealing pressure, while the outer layer ensures chemical resistance. However, such rings have the drawback that the outer layer of fluoroplastic has a high hardness. Over time, however, it will scratch (eg by using screwdrivers when opening and closing the coupling) through which liquids may leak.

BE2016 / 5414

The object of the present invention is therefore to provide a sealing ring which is sufficiently chemical resistant, which can be used several times (extended service life) and which can also be manufactured in an economically feasible manner.

The object of the invention is achieved by providing a sealing ring for a Camlock coupling, the ring comprising an inner ring and an outer ring made of a different material, and the inner and outer ring being mechanically connected to each other. By forming the sealing ring from two separate rings which are then joined together, the outer ring, which in use does not come into direct contact with liquids, can be manufactured from a cheaper material (but still has sufficient chemical and temperature resistance), while the inner ring, which does come into direct contact with liquids in use, but can be manufactured from a high-quality material, the sealing ring can be produced in an economically feasible manner. The inner ring also ensures a durable leak-free seal.

In a preferred embodiment of the sealing ring according to the invention, the material of the inner ring is more elastic than the material of the outer ring. Such a construction has the advantage that the sealing ring has a much longer life, because any scratches in the outer surface will not immediately give rise to leakage, because the more elastic inner ring will fill in these scratches.

In a more preferred embodiment of the sealing ring according to the invention, the outer ring is provided with female connecting means and the inner ring is provided with male connecting means, the two rings being connected to each other by engagement of the male connecting means in the female connecting means. The mutual connection between the two rings is preferably detachable.

BE2016 / 5414

According to a special embodiment of the sealing ring according to the invention, the outer ring is made of a fluoroplastic and the inner ring is made of a perfluoroelastomer.

In a more special embodiment of the sealing ring according to the invention, the inner and outer rings have a thermal resistance of more than 200 ° C.

To further clarify the properties of this invention and to indicate additional advantages and details thereof, a more detailed description of sealing ring according to the present invention follows. It is to be understood that nothing in the description below can be interpreted as limiting the protection claimed in the claims for this invention.

In this description reference is made by reference numerals to the accompanying drawings, in which:

figure 1 is a cross-section of the sealing ring according to the invention.

The invention relates to a sealing ring (1) for a Camlock coupling. More specifically, it concerns a sealing ring (1) for a Camlock couplings according to EN 14420-7 and TW couplings according to EN 14420-6.

These couplings are increasingly used in the chemical, pharmaceutical and food industries, where virtually full chemical resistance is required. This requirement in combination with a necessary pressure density up to 16 bar operating pressure implies a soft seal based on an elastomer. Only high-quality, expensive chemically inert elastomer seals are eligible for this.

The sealing ring (1) as shown in figure 1 comprises an inner ring (3) and an outer ring (2) which are made of a different material and which are mechanically

BE2016 / 5414 are linked together. For this purpose, the outer ring (2) is provided with female connecting means (4) and the inner ring (3) is provided with male connecting means (5). Both rings (2; 3) are connected to each other by engagement of the male connecting means (5) in the female connecting means (4).

The outer ring (2), like the inner ring (3), must meet the required chemical resistance, this in combination with a temperature resistance up to + 200 ° C will usually be chosen for a fluoroplastic ring (eg PTFE,

TFM, PFA, FEP). The inner ring (3) will be made of a high quality per fluoroelastomer.

Due to the proposed design, the outer ring (2) will serve as anchoring for the inner ring (3).

BE2016 / 5414

Claims (5)

CONCLUSIONS Sealing ring (1) for a Camlock coupling, characterized in that the ring (1) comprises an inner ring (3) and an outer ring (2) made of a different material, the inner (3) and outer ring ( 2) are mechanically connected to each other. Sealing ring (1) according to claim 1, characterized in that the material of the inner ring (3) is more elastic than the material of the outer ring (2). Sealing ring (1) according to claim 1 or 2, characterized in that the outer ring (2) is provided with female connecting means (4) and the inner ring (3) is provided with male connecting means (5), and that the two rings ( 2; 3) are joined together by engagement of the male connecting means (5) in the female connecting means (4). Sealing ring (1) according to any one of the preceding claims, characterized in that the outer ring (2) is made of a fluoroplastic and the inner ring (3) is made of a perfluoro elastomer. Sealing ring (1) according to any one of the preceding claims, characterized in that the inner and outer rings have a thermal resistance of more than 200 ° C. BE2016 / 5414