Removable magnetic zero/span actuator for a transmitter

Details Removable magnetic zero/span actuator for a transmitter Removable magnetic zero/span actuator for a transmitter

1992-11-13

1994-11-29

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Permanent magnet-actuated switches

Plural switches

335207, H01H 900

Patent

active

053693868

ABSTRACT:
A magnetic actuator for adjusting the zero and span settings of a transmitter used in industrial process control systems. The actuator has a single magnet in a housing. The actuator is removable from the transmitter.
When the actuator is unactuated the magnet is in a null position wherein it does not actuate either the zero or span setting reed switches. The magnet can be moved to either a first position wherein it actuates the zero setting reed switch or a second position wherein it actuates the span setting reed switch. The actuator applies a torque in the proper direction to return the magnet to the null position when the torque applied to move the magnet to either the first or second position is removed.

REFERENCES:
patent: 3469042 (1969-09-01), Sandor
patent: 3527903 (1970-09-01), Holland et al.
patent: 4737751 (1988-04-01), Risk
patent: 4783659 (1988-11-01), Frick
patent: 4965417 (1990-10-01), Massie
patent: 4975547 (1990-12-01), Nakayama et al.

Affiliated with

Also associated with

Rating

Removable magnetic zero/span actuator for a transmitter does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Removable magnetic zero/span actuator for a transmitter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Removable magnetic zero/span actuator for a transmitter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-76189