Mounting of a pointer to the rotor of an air core meter

Details Mounting of a pointer to the rotor of an air core meter Mounting of a pointer to the rotor of an air core meter

1990-10-29

1992-06-23

Snow, Water E.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

With electromagnetic field

295921, G01R 120

Patent

active

051246430

ABSTRACT:
The pointer of an air-core meter instrumentation gauge comprises a driven hub via which the pointer is separably attached to a driving hub on the rotor of the air core meter movement. The driving hub is press-fitted to the rotor in proper circumferential alignment so that when the pointer is attached, the pointer will be inherently properly circumferentially oriented too. This is accomplished by providing a keyed connection between the driving and driven hubs such that the pointer can be assembled to the driving hub in only one particular circumferential orientation. The hubs also have a snap-together catch feature that is additional to the keyed connection.

REFERENCES:
patent: 3946311 (1976-03-01), Baker et al.
patent: 4335351 (1982-06-01), Faria
patent: 4492920 (1985-01-01), Reenstra
patent: 4724601 (1988-02-01), MacManus et al.
patent: 4758784 (1988-07-01), Baker et al.

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