US 4,211,972 A · Self contained filar suspended meter rotor

Abstract

A meter rotor includes a preferably hollow shaft for caging filaments or ribbons, means such as openings on the shaft for engaging a coil, a pair of axially movable end caps engaging opposing ends of the shaft, a spring associated with each end cap for holding the filaments or ribbons taut but without necessarily deflecting the springs, and means on the end caps for engaging a stator. The rotor cooperates with a stator which has rotor-engaging means corresponding to the stator-engaging means on the end caps. The rotor engaging means are separated by a first distance which is greater than a second distance between the stator engaging means. The first and second distances are in a predetermined relationship so that when the rotor is positioned in the stator and the end caps are moved axially, the stator engaging means engage the stator, thereby deflecting the springs to apply tension to the filaments or ribbons.

Claims15

Dependent claims

In an electric meter including a stator mount, a means for generating a magnetic field, and a coil mounted for rotational movement in said magnetic field, an improvement comprising a self-contained rotor and mount assembly removably engageable with said stator mount, said assembly comprising:

a rotor shaft having two ends and including means mounting said coil thereon;
stator engaging means comprising end pieces disposed at each end of said shaft for removably engaging said stator mount;
filar suspension means for suspending said rotor shaft between said end pieces;
and
spring tension means on at least one of said end pieces for maintaining tension in said filar suspension means
whereby said self-contained rotor and mount assembly as a unit can be engaged and disengaged by said end pieces.

3 more elements

Dependencies are inferred from the claim text.

Self contained filar suspended meter rotor

Life of this patent

Self contained filar suspended meter rotor

Life of this patent

Abstract

Claims15