Miniature buzzer

Details Miniature buzzer Miniature buzzer

1979-03-08

1981-02-17

Pitts, Harold I.

Communications: electrical

Audible indication

Ultrasonic pest control

340388, G08B 310

Patent

active

042518075

ABSTRACT:
A miniature buzzer for a pocket pager and the like is provided. The buzzer includes a support member in the form of a cylindrical collar having a bore extending therethrough. The bore is stepped with the step defining a knife edge. A pole piece surrounded by a coil and ring magnet extends toward the step. The ring magnet and a central portion of the pole piece define a plane spaced apart from the step. A diaphragm, backed by a magnetic armature seats on the knife edge for attraction/repulsion toward/from the pole piece. The coil is driven by an oscillator extends from the collar. The assembly is contained within a housing the volume of which is also tuned to the oscillator.

REFERENCES:
patent: 3846792 (1974-11-01), Haigh
patent: 4159472 (1979-06-01), Murakami
patent: 4183017 (1980-01-01), Sims

Affiliated with

Also associated with

Rating

Miniature buzzer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Miniature buzzer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Miniature buzzer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2264733