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 Title: |
US4911866:
Fog producing apparatus
[ Derwent Title ]
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| Country: |
US United States of America
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| Inventor: |
Monroe, Marshall M.; Glendale, CA
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| 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
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| Application Number: |
US1988000276240
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| IPC Code: |
Advanced:
B01F 3/04;
B05B 17/06;
IPC-7:
B01F 3/04;
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| ECLA Code: |
B01F3/04B3F; B05B17/06B1;
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| 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;
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| Field of Search: |
239/102.2
261/DIG. 48,81,120
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| Priority Number: |
| 1988-11-25 |
US1988000276240 |
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| 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.
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| Attorney, Agent or Firm: |
Fulwider, Patton, Reiber, Lee & Utecht ;
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| Primary / Asst. Examiners: |
Miles, Tim;
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| Maintenance Status: |
E2 Expired Check current status
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| INPADOC Legal Status: |
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| Family: |
Show 6 known family members
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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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| Background / Summary: |
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| Drawing Descriptions: |
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| Description: |
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| Forward References: |
Show 16 U.S. patent(s) that reference this one
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