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1. 发明申请

US20220399701A1 EXPLOSION-PROOF HOUSING 有权
公开(公告)号：US20220399701A1
公开(公告)日：2022-12-15
申请号：US17778342
申请日：2020-11-06
申请人： R. STAHL SCHALTGERÄTE GMBH
发明人： Bernd LIMBACHER , Elena KONDRUS , Holger SEMRAU
IPC分类号： H02B1/28 , H05K5/00
摘要： An explosion-proof housing, which forms an interior for accommodating components that can form ignition sources. The housing has a first housing part with a first section which has a first face, and a second housing part with a second section which has a second face, the first section and/or the second section being a section of a wall, the first face and the second face delimiting an intermediate region. The first section and the second section are pressed against each other with elastic deformation of the wall section so that the intermediate region is geometrically closed in a flameproof manner by the elastic deformation of the wall section. The invention also relates to a method for producing an explosion-proof connection between a first section of a first housing part with a first face and a second section of a second housing part with a second face of a housing, at least one of the sections being a section of a wall. The invention also relates to a further method for producing an explosion-proof connection between a first section of a first housing part with a first face and a second section of a second housing part with a second face of a housing, at least one of the sections being a section of a wall.

2. 发明申请

US20220316625A1 EXPLOSION-PROOF ARRANGEMENT 有权
公开(公告)号：US20220316625A1
公开(公告)日：2022-10-06
申请号：US17623037
申请日：2020-06-23
申请人： R. STAHL SCHALTGERÄTE GMBH
发明人： Elena KONDRUS , Bernd LIMBACHER , Holger SEMRAU , Jürgen Schmitt
IPC分类号： F16L5/04 , H02G3/08 , H02G3/06
摘要： The invention relates to an explosion-proof arrangement (10) with an explosion-proof housing (11) which has a wall opening (23) in a housing wall (12). The wall thickness (d) of the housing wall (12) is so small that it is not possible to form a thread there in order to screw in a connecting body (15) for a line to pass through or for receiving an assembly so as to ensure protection against flame transmission. According to the invention, a connecting body (25), which has a flange (38) with a flange face (39), is inserted into the wall opening (23). The flange face (39) delimits a flameproof gap (58) by way of the housing wall (12). The dimensions of a gap or intermediate space between the connecting body (25) and a boundary face (24) of the housing wall (12), which boundary face delimits the wall opening (23), are not important. The protection against flame transmission can be provided solely by the flameproof gap (58) between the flange face (39) and the housing wall (12).

3. 发明申请

US20210154504A1 EXPLOSION-PROOF HOUSING WITH SPLIT COVER 有权
公开(公告)号：US20210154504A1
公开(公告)日：2021-05-27
申请号：US17263481
申请日：2019-07-16
申请人： R. STAHL SCHALTGERÄTE GMBH
发明人： Elena KONDRUS , Jürgen SCHMITT , Natascha SEKINGER , Otto WALCH , Christian KOCHENDÖRFER , Bernd LIMBACHER
IPC分类号： A62C4/00 , A47B81/00 , E06B5/12
摘要： An explosion-proof housing having a cover arrangement which includes two or more covers. The covers are adjacent to a flameproof gap in the housing body (11). A flameproof gap is likewise arranged between the individual covers. Special seals, more particularly in the form of a butt joint closure, are arranged on the remaining butt joints or other gaps and through-holes.

4. 发明申请

US20220361344A1 EXPLOSION-PROOF HOUSING WITH A REINFORCING FRAME 有权
公开(公告)号：US20220361344A1
公开(公告)日：2022-11-10
申请号：US17618757
申请日：2020-06-10
申请人： R. STAHL SCHALTGERÄTE GMBH
发明人： Holger SEMRAU , Elena KONDRUS
IPC分类号： H05K5/00 , H05K5/02 , H05K5/03 , A62C3/16
摘要： The invention relates to an explosion-proof housing (10) with a housing body (11) which delimits an interior (13) and has a housing opening (14). The housing opening (14) can be closed by means of a cover (17). In the closed position of the cover (17), a flameproof gap (18) is formed between the housing body (11) and in particular a housing flange (15) of the housing body (11) and the cover (17). The housing body (11) has a plurality of housing walls (12), which have such a low wall thickness (s) that the housing walls (12) would not withstand the pressure of an explosion in the interior (13). The housing body (11) is therefore reinforced by a reinforcing frame (30) arranged outside the interior (13). The reinforcing frame (30) has a ring frame part (31) that is arranged adjacently to the housing opening (14) and fully surrounds the housing body (11) in an annular fashion. In particular, the ring frame part (31) directly adjoins the housing flange (15).

5. 发明申请

US20220233989A1 FLAME TRAP FILTER 有权
公开(公告)号：US20220233989A1
公开(公告)日：2022-07-28
申请号：US17611077
申请日：2020-05-05
申请人： R. STAHL SCHALTGERÄTE GMBH
发明人： Elena KONDRUS , Jürgen SCHMITT
IPC分类号： B01D46/00 , A62C4/00 , B01D39/10 , B01D39/08
摘要： A flame trap filter including a grid structure, wherein the grid structure determines grid openings which are bordered by intersecting strip sections, and/or wherein the grid structure is formed by a laid scrim. A method for producing a grid structure of a flame trap filter includes the step of allowing a substance to solidify on a substrate, in order to form at least one strip section of the grid structure. Alternatively or in addition, the method includes the step of compressing a material for the flame trap filter or a semi-finished product of the flame trap filter at points, e.g. by mechanically deforming the material or the semi-finished product, in order to form at least one strip section of the grid structure.

6. 发明申请

US20220184435A1 PROTECTIVE HOUSING IN THE EXPLOSION PROTECTION CATEGORY FLAMEPROOF ENCLOSURE 有权
公开(公告)号：US20220184435A1
公开(公告)日：2022-06-16
申请号：US17432933
申请日：2020-02-14
申请人： R. STAHL SCHALTGERÄTE GMBH
发明人： Elena KONDRUS , Bernd LIMBACHER , Jürgen SCHMITT , Helmut WÜRZ
IPC分类号： A62C4/00
摘要： A protective housing in explosion-protection-type pressure-proof encapsulation. At least one device for reducing explosive pressure is associated with the housing. The housing includes a first housing part having a first sealing surface and a second housing part having a second sealing surface, wherein, when the housing is in the closed pressure-proof state, a resilient seal is held between the first sealing surface and the second sealing surface so as to be elastically deformed, and, as a result, closes the space between the first sealing surface and the second sealing surface in a flame-proof manner in the event of an explosion inside the housing. The flame-proof arrangement can replace a planar gap between, for example, a surface of a cover and a surface of a housing part, which gap requires conformity to relatively narrow manufacturing tolerances.

7. 发明申请

US20210170210A1 EXPLOSION-PROOF HOUSING 有权
公开(公告)号：US20210170210A1
公开(公告)日：2021-06-10
申请号：US17271508
申请日：2019-08-09
申请人： R. STAHL SCHALTGERÄTE GMBH
发明人： Elena KONDRUS , Jürgen SCHMITT , Natascha SEKINGER , Otto WALCH , Christian KOCHENDÖRFER , Bernd LIMBACHER
IPC分类号： A62C3/16 , H05K7/20 , E05G1/024
摘要： An explosion-proof housing having external walls, which enclose a housing interior so as to be proof against ignition penetration relative to an atmosphere at risk of explosion. At least one insert is arranged in at least one outer wall. The insert facilitates a gas flow between the housing interior and an environment around the housing. The at least one insert is configured in such a way that a gas flow having a sufficient mass flow or volumetric flow rate is permitted, but a flow connection which is proof against ignition penetration is produced. Attached to the outer wall having the at least one insert is a guiding means which together with the relevant outer wall delimits a flow channel. The flow channel defines a main flow direction of a main gas flow through the flow channel substantially parallel to the directly adjoining outer wall. In this way, the gas exchange between the environment and the housing interior can be improved and facilities arranged in the housing interior can be cooled.

8. 发明申请

US20210120682A1 FLAMEPROOF HOUSING 有权
公开(公告)号：US20210120682A1
公开(公告)日：2021-04-22
申请号：US16972294
申请日：2019-06-04
申请人： R. STAHL SCHALTGERÄTE GMBH
发明人： Elena KONDRUS , Jürgen SCHMITT , Natascha SEKINGER , Otto WALCH , Christian KOCHENDÖRFER , Bernd LIMBACHER
IPC分类号： H05K5/00 , H05K5/06 , H05K5/03 , H02B1/28
摘要： A housing according of the flameproof encapsulation protection type having a housing body which has an opening closed by a cover. The opening is surrounded by a flange which is directed outward away from the housing body. The edge of the cover lies flat on the flange. The edge and the flange are both preferably continuous. In any case, the edge and the flange do not have any passage openings for clamping means. In order to clamp the edge against the flange, clamps are provided which hold the edge and the flange pressed against each other in the manner of screw clamps. The clamps are provided with releasable clamping means and are preferably captively retained on the housing body or the cover, the clamps being movable between a closed position, in which the cover is fixedly clamped, and an open position, in which the clamps do not extend over the cover and allow the cover to be opened unhindered.

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