Halogen-free thermoplastic elastomer magnetic door seal

Halogen-free thermoplastic elastomer magnetic door seal

PATENTS Improved seal for bipolar lithium-ion battery Applicant: Commissariat a l’Energie Atomique et Aux Energies Alternatives, France This invention...

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PATENTS Improved seal for bipolar lithium-ion battery Applicant: Commissariat a l’Energie Atomique et Aux Energies Alternatives, France This invention relates to a bipolar lithium-ion battery comprising at least two electrochemical cells stacked on top of one another. Each collector has on its periphery at least one bead of an electrically insulating material which also forms a peripheral zone of the wall impermeable to the electrolyte. According to the associated patent, each impermeable wall is created by a technique of direct bonding – anodic bonding between a bead of the bipolar collector and a bead of the adjacent collector, and eutectic bonding between a layer made of metal, or a eutectic metal alloy, deposited on a bead of the bipolar collector and a layer made of metal, or eutectic metal alloy, deposited on a bead of the adjacent collector. Patent number: WO/2014/013373 Inventors: J.-F. Damlencourt, E. Augendre and F. Fournel Publication date: 23 January 2014

is higher than that on the entry side, creating a pressure differential across the diaphragm (107). Patent number: WO/2014/013267 Inventor: C. Jackson Publication date: 23 January 2014

Sealing strand for a vehicle’s bodywork Applicant: CQLT Saargummi Technologies Sàrl, Luxembourg A sealing strand is described for producing a seal on a vehicle’s bodywork. This is achieved by fixing the sealing strand to the body, in particular by adhering it to a bodywork flange (3). The sealing strand has a fixing portion (1) with an adhesive surface (2), which is provided for adhering to the vehicle bodywork, and a seal portion (7) that is connected to the fixing portion (1) on the side (of the fixing portion) facing away from the adhesive surface (2), thereby forming

Cable glands Applicant: Hubbell Ltd, UK A diaphragm seal (101) for a cable gland forms the subject of this patent. As the accompanying figure shows, the design has concentric inner (103) and outer (105) cylindrical seal walls connected at one end by a diaphragm (107) to define a cavity (121). The cavity (121) contains a plurality of support webs (125) that extend between the inner and outer seal walls. These webs (125) are provided on an exit side of the seal (101) and deform to assist insertion of the cable through the seal (101) from an entry side of the seal (101). The webs resist inversion of the seal (101) when the pressure on the exit side

a tube. This tube bends inwards on at least one side under the influence of a force (18) acting perpendicularly to the adhesive surface (2). Patent number: WO/2014/012656 Inventors: M. Thome, T. Erschens and C. Kast Publication date: 23 January 2014

Insertion tool Applicant: Dätwyler Sealing Technologies Deutschland GmbH, Germany The aim of this invention is to facilitate the insertion of an auxiliary or emergency seal into a groove of a sealing profile. In order to achieve this aim a tool (1) is provided for inserting a string-shaped emergency seal (16) into a rear groove (15) of a strand-shaped sealing profile (14) for “shaft and tunnel constructions”. This involves a tube (2) for receiving the emergency seal (16). This tube comprises a leading end (3), having a front opening (17), and a rear end (4), having a rear opening (18). A projection (5) is arranged in the region of the leading end (3), at the outer peripheral surface of the tube (2). This projection has on its face, remote from the tube, a head (6) for engaging in the rear groove (15) with at least one sliding surface, or roll. Patent number: WO/2014/015855 Inventors: M. Klug, P. Schenk and M. Fischer Publication date: 30 January 2014

A tool has been developed for inserting a string-shaped emergency seal into a rear groove of a strand-shaped sealing profile for what is referred to as “shaft and tunnel constructions”. Patent WO/2014/015855 has further details.

Halogen-free thermoplastic elastomer magnetic door seal This invention, detailed by patent WO/2014/013267, has particular, but not exclusive, application to cable glands for electric cables. It especially relates to cable glands for use in applications requiring a flameproof structure.

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Sealing Technology

Patent WO/2014/012656 describes an invention that aims to create a sealing strip that provides more secure adhesion to a vehicle’s bodywork than has been achieved in previous approaches – improving the sealing effect.

Applicant/Inventor: X. Ouyang, China This invention relates to an environmentfriendly and halogen-free thermoplastic elastomer magnetic door seal. It includes a thermoplastic elastomer door-sealing glue sheath that has a magnetic strip passing through its structure. The sheath contains raw materials

August 2014

PATENTS consisting of the following components by weight percentage: styrene ethylene butylene styrene (SEBS), 25–35 parts; polyolefin elastomer (POE), 15–20 parts; polypropylene (PP), 10–15 parts; naphthenic oil, 28–45 parts; talc powder, 20–25 parts; anti-ager, 0.5–0.7 parts; organosilicon, 1–2 parts; a lubricant, 0.5 parts, a nucleating agent, 1 part; and an appropriate amount of pigment. According to the patent, this design can be adapted to all types of refrigerators and freezers, meets the requirements for environmental protection, has excellent lowtemperature resistance, ageing-resistance, resilience, mechanical performance, and overcomes the shortcomings of flexible polyvinyl chloride (PVC) magnetic door seals. Patent number: WO/2014/015558 Publication date: 30 January 2014

Sealing compositions for solid-oxide fuel-cells Applicant: Mo-Sci Corp, and The Curators of the University of Missouri – USA This patent provides details of a material (sealant) for forming a seal between at least two solid-oxide fuel-cell components. The sealant described includes a material containing B2O3 as a principal glass former, BaO and other components. The glass material is substantially alkali-free and contains less than 30% crystalline material. Patent number: WO/2014/018536 Inventors: C.W. Kim and R.K. Brow Publication date: 30 January 2014

Sealing apparatus and method Applicant: Rubberatkins Ltd, UK This invention relates to an apparatus and method that aim to establish a seal in an annulus between a mandrel and a bore wall. It also concerns a back-up assembly for use in such apparatus. More particularly, but not exclusively, embodiments of this invention may take the form of a downhole packer for use in sealing a well-bore annulus or bore-lining tubular bore annulus. Patent number: WO/2014/016614 Inventors: N. Atkins, D. Hare and V. Avanashiappan Publication date: 30 January 2014

August 2014

Device for measuring impermeability of a seal for a filter cartridge Applicant: General Electric Co, USA This patent provides details of a device for measuring impermeability of a seal used in a filter cartridge. The approach involves the use of a housing suited to cooperate tightly with the sealing means of the cartridge; a removable means of closure, suited to cooperate with the housing and a means of obturating it, in view of forming a sealed chamber; and a means of fluid suction or injection, mounted at one entry point of the means of closure and capable of lowering or increasing the pressure inside the sealed chamber, in order to detect potential leaks in the cartridge. When the entry point of the cartridge is closed, increased or lowered pressure is applied to the cartridge. The device is able to highlight gas or liquid leaks, in particular, in the seal – depending on whether lowered or increased pressure is applied. Patent number: WO/2014/018633 Inventors: P. Claudon and L. Pesenti Publication date: 30 January 2014

Bearing seal Applicant: Toyo Seal Industries Co Ltd, Japan The objective of this invention is to provide a bearing seal that is capable of retaining its stability whilst it is being used for a long time in an acid or alkali environment. This is achieved by improving its corrosion resistance properties – against, for example, organic acid. The bearing seal, which seals space between an inner ring and an outer ring of a rolling bearing, comprises an annular core metal, and a rubber member bonded to a surface of the core metal by an adhesive layer. The core metal includes a base material made of iron and a layer acting as a protective film, formed on a surface of the base material. The layer is metal-plated, using a metal including chromium, but not including zinc, which generates a passive state film. Alternatively the metal-plated layer uses a metal that has a lower ionisation tendency than iron, which protects the base material from corrosion.

Chromium hydrate oxide is applied to a surface of this layer. According to the inventors, this bearing seal can be used for a long time because the base material is protected from the acid or alkali environment, which prevents the adhesive layer from peeling. Patent number: WO/2014/017052 Inventors: S. Saigusa and T. Hashio Publication date: 30 January 2014

Sealing arrangement Applicant: Edwards Ltd, UK A sealing arrangement has been developed for use in a ultra-high vacuum (UHV) pump having a first housing member (1) and a second housing member (2) – the first member houses a pumping mechanism (7). The sealing arrangement (2, 3 & 5) is positioned to provide a seal between the first and second housing members (1 & 2). It comprises inner and outer seals (2 & 3), extending around the periphery of the envelope (1) and a plenum (5) positioned between the inner and outer seals. A system is provided for pumping the plenum (5) to a subatmospheric pressure. Patent number: WO/2014/016551 Inventors: A. Cobbett, R.G. Horler and I. Olsen Publication date: 30 January 2014

The main aim of this invention is to provide a sealing arrangement for a ultra-high vacuum (UHV) pump that permits a cheaper pump envelope to be used. It also aims to create a UHV pump of the type that has a blanking plate, which has a reduced leak rate, so that UHV performance can be achieved. Further details can be found in patent WO/2014/016551.

Sealing Technology

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