Temperature compensated magnetic bearing system for a watthour m

Details Temperature compensated magnetic bearing system for a watthour m Temperature compensated magnetic bearing system for a watthour m

1978-05-25

1980-04-08

Skudy, R.

Cutlery

324137, F16C 3900

Patent

active

041969464

ABSTRACT:
A repulsion-type permanent magnet bearing system for watthour meters includes identical upper and lower permanent magnet assemblies. Each assembly includes a hollow cylindrical magnet including a temperature compensating sleeve extending through each magnet center opening. Soft magnetic shielding cups are attached to the rotor and stator parts of the meter to carry the permanent magnet assemblies in facing relationships. The permanent magnet size and orientation with respect to each other and the cups provides an optimumly maintained bearing gap spacing.

REFERENCES:
patent: 2254698 (1941-09-01), Hansen
patent: 3107948 (1963-10-01), Lovegrove
patent: 3143704 (1964-08-01), Wright
patent: 3693086 (1972-09-01), Redecker
patent: 3807813 (1974-04-01), Milligan
patent: 3810683 (1974-05-01), Keever

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