Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Multiple contact type
Patent
1976-12-17
1978-03-21
Broome, Harold
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Multiple contact type
200247, 335202, H01H 4500
Patent
active
040805840
ABSTRACT:
A spring retaining clip for mounting a contact carrying insulator on the return pole piece of an electromagnetic relay. The spring retaining clip is generally U-shaped and has a resilient back wall member adapted to be disposed between the return pole piece of the relay and the excitation coil thereof. The spring retaining clip also includes a pair of side wall members which straddle a central portion of the return pole piece and which interlock with a corresponding pair of side wall members of the contact carrying insulator. In a free state condition, the back wall member is curved similarly to the curved outer surface of the excitation coil, but must be straightened somewhat and forced into engagement with the central portion of the return pole piece before the side wall members of the spring retaining clip and the insulator can become interlocked in assembled relation with one another.
REFERENCES:
patent: 3056007 (1962-09-01), Keenan
patent: 3242285 (1966-03-01), Obszarny et al.
patent: 3636483 (1972-01-01), Jambrink et al.
Aigner Georg
Moeller Helmut
Broome Harold
Siemens Aktiengesellschaft
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