Plastic and nonmetallic article shaping or treating: processes – Carbonizing to form article – Agglomeration or accretion
Patent
1990-10-31
1991-12-03
Hall, Carl E.
Plastic and nonmetallic article shaping or treating: processes
Carbonizing to form article
Agglomeration or accretion
296021, 29608, 264108, 26427217, H01F 4102
Patent
active
050698346
ABSTRACT:
In known electromagnetically actuatable valves having a connection fitting acting as a core and on which a magnet coil is disposed, the magnet coil is surrounded by a solid valve housing of ferromagnetic metal. The manufacture of this valve housing is very labor-intensive and results in undesirably large external dimensions. The valve enables not only simple manufacture but also a reduction in the external dimensions of the valve. In the valve, a plastic sheath surrounding both the connection fitting and the magnet coil is provided, which at least in the region surrounding the magnet coil contains ferromagnetic fillers conducting magnetic field lines. The fillers surround the magnet coil in the circumferential direction. This embodiment of the valve is suitable for electromagneticallly actuatable systems of all kinds.
REFERENCES:
patent: 1994534 (1935-03-01), Robinson
patent: 3837618 (1974-09-01), Juhel
patent: 4670080 (1986-09-01), Hensley
Greigg Edwin E.
Greigg Ronald E.
Hall Carl E.
Robert & Bosch GmbH
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