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Title: US4911866: Fog producing apparatus
[ Derwent Title ]

Country: US United States of America

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9 pages

Inventor: Monroe, Marshall M.; Glendale, CA

Assignee: The Walt Disney Company, Burbank, CA
other patents from WALT DISNEY COMPANY (617665) (approx. 101)
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Published / Filed: 1990-03-27 / 1988-11-25

Application Number: US1988000276240

IPC Code: Advanced: B01F 3/04; B05B 17/06;
IPC-7: B01F 3/04;

ECLA Code: B01F3/04B3F; B05B17/06B1;

U.S. Class: Current: 261/081; 239/102.2; 261/120; 261/DIG.048;
Original: 261/081; 261/120; 261/DIG.48; 239/102.2;

Field of Search: 239/102.2 261/DIG. 48,81,120

Priority Number:
1988-11-25  US1988000276240

Abstract:     A fog producing apparatus for suspending fine particles of water in air in an economical and reliable manner. Ultrasonic transducers potted in an electrically insulative and liquidproof material are placed in a container in which a predetermined water level is maintained by a float and valve device. Alternatively, the potted transducers are suspended below floats floating on the surface of the water whereby the critical water depth over the transducers is automatically maintained. In addition compressed air is conducted through the emanating fog plumes to provide a more homogeneous and dispersed fog effect. A copious amount of fog can thereby be efficiently and reliably produced to create theatrical or visual effects.

Attorney, Agent or Firm: Fulwider, Patton, Reiber, Lee & Utecht ;

Primary / Asst. Examiners: Miles, Tim;

Maintenance Status: E2 Expired  Check current status

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Family: Show 6 known family members

First Claim:
Show all 14 claims
What is claimed is:     1. An apparatus for producing fog, comprising an ultrasonic transducer module, said module including a transducer disc and circuitry means for oscillating said disc in the MHz frequency range, potted in an electrically insulative and water-proof potting material whereby only said disc remains exposed so that the entire module is submersible and functional within a body of water.

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Forward References: Show 16 U.S. patent(s) that reference this one

U.S. References: Go to Result Set: All U.S. references   |  Forward references (16)   |   Backward references (10)   |   Citation Link

Patent  Pub.Date  Inventor Assignee   Title
Get PDF - 14pp US3561444  1971-02 Boucher  Bio-Logics, Inc. ULTRASONIC DRUG NEBULIZER
Get PDF - 8pp US3690317  1972-09 Millman  The Bendix Corporation SONIC NEBULIZER
Get PDF - 6pp US3892235  1975-07 Amerongen et al.  Respiratory Care, Inc. Multi-use inhalation therapy apparatus
Get PDF - 6pp US4001077  1977-01 Kemper   Evaporation accelerator
Get PDF - 7pp US4308137  1981-12 Freeman   Water aeration and circulation apparatus
Get PDF - 6pp US4530464  1985-07 Yamamoto et al.  Matsushita Electric Industrial Co., Ltd. Ultrasonic liquid ejecting unit and method for making same
Get PDF - 7pp US4550325  1985-10 Viola  Polaroid Corporation Drop dispensing device
Get PDF - 8pp US4641053  1987-02 Takeda  Matsushita Seiko Co., Ltd. Ultrasonic liquid atomizer with an improved soft start circuit
Get PDF - 15pp US4746466  1988-05 Takahashi  TDK Corporation Ultrasonic atomizing apparatus
Get PDF - 11pp US4776990  1988-10 Verity  Rhinotherm Netzer Sereni Method and apparatus for nebulizing a liquid
Foreign References:
Publication Date IPC Code Assignee   Title
  JP52053514 1977-04       
  JP53091414 1978-08       

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