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US 4,056,799 AGranted
Housing for securing a damping compression spring in an electromagnetic switching apparatus
AssigneeSiemens Aktiengesellschaft
InventorJohann Bauer
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AssigneeSiemens Aktiengesellschaft
InventorJohann Bauer
Estimating the term…
In the housing of an electromagnetic switching apparatus including a magnet coil and switching and non-switching magnet parts disposed within the housing, and at least one damping compression spring for biasing the non-switching magnet part in one direction in the housing, the spring having a plurality of turns of the same diameter and one end turn having a diameter greater than that of the plurality of turns for securing the spring in the housing, the improvement comprising hook-shaped projection members disposed within the housing about the periphery of the compression spring. The projection members are spaced apart from each other along a diameter of the spring by a distance which is greater than the diameter of the plurality of turns thereof but less than the diameter of the end turn. The plurality of turns of the spring are axially movable between the projection members while the end turn of the spring is engaged by the members. The compression spring is thus axially movably secured in the housing of the switching apparatus.
In an electromagnetic switching apparatus including a housing, a magnet coil and switching and non-switching magnet parts disposed within said housing, and at least one damping compression coil spring for biasig said non-switching magnet part in one direction in said housing, said spring having a plurality of turns of the same diameter, and an end turn having a diameter which is greater than that of said plurality of turns for securing said spring within said housing, the improvement comprising said housing including hook-shaped projection members disposed about the periphery of said spring, said projection members being spaced apart from each other along a diameter of said spring by a distance which is greater than the diameter of said plurality of turns but less than the diameter of said end turn so that said plurality of turns are movable axially between said members and said end turn engages said members for movably securing said spring in said housing.
An apparatus for inserting a damping compression coil spring in the housing of an electromagnetic switching apparatus, said spring having a plurality of turns of the same diameter, and an end turn having a diameter which is greater than that of said plurality of turns for securing said spring within said housing, and said housing including hook-shaped projection members disposed about the periphery of said spring and being spaced apart from each other along a diameter of said spring by a distance which is greater than the diameter of said plurality of turns but less than the diameter of said end turn so that said plurality of turns are movable axially between said projection members and said end turn engages said members for movably securing said spring in said housing, said apparatus for inserting said spring in said housing comprising:
Dependencies are inferred from the claim text.