Buzzer construction and method of adjusting the same

Details Buzzer construction and method of adjusting the same Buzzer construction and method of adjusting the same

1975-02-11

1977-01-25

Caldwell, John W.

Communications: electrical

Audible indication

Pneumatic-type sound producer

340401, 335 96, 29593, 335278, 29602R, G01K 108, G08B 300

Patent

active

040054136

ABSTRACT:
A buzzer structure, of the type comprising a housing having a coil unit therein and an armature mounted for vibratory movement adjacent the coil unit, includes in one embodiment an integral portion of the housing which is bent inwardly into engagement with the coil unit to fix the spacing between the coil unit and housing, thereby to determine the dimensions of the gap between the coil unit and armature. In a further embodiment, the coil unit is mounted directly to a deformable, integral part of the housing which is bent inwardly to fix the spacing between the coil unit and an adjacent diaphragm. The spacing and gap dimensions are adjusted, after the buzzer elements are assembled, by energizing the coil unit, applying a force to a portion of the housing to progressively deform it to displace the coil unit in engagement therewith, and monitoring the magnitude of current flow through the coil unit while simultaneously monitoring the sound output of the buzzer to determine when a proper operating point has been reached, at which time the progressive deformation of the housing and displacement of the coil unit are immediately terminated.

REFERENCES:
patent: 3631480 (1971-12-01), Heap
patent: 3864823 (1974-01-01), Berns

Affiliated with

Also associated with

Rating

Buzzer construction and method of adjusting the same does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Buzzer construction and method of adjusting the same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Buzzer construction and method of adjusting the same will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1481684