U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Ultrasonic pocket atomizer

Patent 4877989 Issued on October 31, 1989. Estimated Expiration Date: Icon_subject January 12, 2009. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3387607

3561444

3828773

Oscillator-exciting system for ultrasonic liquid nebulizer
Patent #: 3989042
Issued on: 11/02/1976
Inventor: Mitsui ,   et al.

Apparatus for ultrasonic nebulization
Patent #: 4109863
Issued on: 08/29/1978
Inventor: Olson ,   et al.

Atomizer for fluids, preferably an inhalation device
Patent #: 4294407
Issued on: 10/13/1981
Inventor: Reichl ,   et al.

Inhalator
Patent #: 4334531
Issued on: 06/15/1982
Inventor: Reichl ,   et al.

Apparatus having printed circuit pattern for suppressing radio interference
Patent #: 4583056
Issued on: 04/15/1986
Inventor: Takeda ,   et al.

Ultrasound generator
Patent #: 4718421
Issued on: 01/12/1988
Inventor: Rohwedder ,   et al.

Transducer for producing sound of very high intensity Patent #: 4757227
Issued on: 07/12/1988
Inventor: Danley ,   et al.

Inventors

Assignee

Application

No. 296846 filed on 01/12/1989

US Classes:

310/323.01, Direct mechanical coupling128/200.16, Ultrasonic239/102.2, By electric transducer (e.g., piezoelectric crystal)310/317Input circuit for mechanical output from piezoelectric element

Examiners

Primary: Budd, Mark O.

Attorney, Agent or Firm

Foreign Patent References

  • 2557958 DE. 06/13/1977
  • 2101500 GB 01/13/1983

International Class

H01L 041/08

Foreign Application Priority Data

1986-08-11 DE

Abstract

An ultrasonic pocket-size atomizer comprises a housing including a first portion and a second portion detachably connected thereto. A vibration generation mechanism is mounted liquid-tight in the first portion of the housing for generating an oscillation with a frequency between 1 and 5 Mhz. The vibration generation mechanism includes a piezoelectric assembly and an electronic circuit operatively connected to the assembly for energizing the assembly and causing the assembly to vibrate. A power source including a storage battery is removably and rechargeably disposed in the first portion of the housing for supplying electric current to the electronic circuit. A cartridge is provided for containing liquid to be atomized, the cartridge being movably disposed in the second portion of the housing. An activation mechanism is provided for automatically activating the electronic circuit upon motion of the movable section of the cartridge, the activation mechanism including a magnet attached to the movable section of the cartridge so as to move therewith. The activation mechanism further includes a switch operatively connected to the electronic circuit and operable by the magnet upon a shift in the position thereof during motion of the movable section of the cartridge.

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