Method and apparatus in a space study

Details Method and apparatus in a space study Method and apparatus in a space study

1999-10-19

2001-11-20

Nguyen, Kien T. (Department: 3712)

Amusement devices

Illusion or stage device

Illusion caused by visual imitation of event occurring in...

C062S003200

Reexamination Certificate

active

06319136

ABSTRACT:

This application is the national phase under 35 U.S.C. §371 of PCT International Application No. PCT/FI98/00066 which has an International filing date of Jan. 23, 1998, which designated the United States of America. The invention relates to a method in a spatial work of art. The invention also relates to an arrangement in a spatial work of are. A spatial work of art is known from U.S. Pat. No. 5,407,392 wherein the work of art which is at least partially provided with transparent walls and includes cooling and heating elements for varying the temperature of the inside of the spatial work of art between a temperature below and a temperature above freezing temperature. By means of the arrangement, impressive phenomena are provided when water freezes and melts on a cyclic basis. The present invention aims at further developing the above-described solution and at achieving an entirely novel type of method and arrangement in a spatial work of art. The invention is based on generating an intense direct-current voltage field in the spatial work of art, said field controlling the formation of frost.
In more detail, the arrangement according to the invention pertains to a spatial work of art whose interior varies above and below the freezing point of water by generating an intense direct current voltage field inside the spatial work of art in order to control the generation of frost.
The arrangement according to the invention, then, has an inner part separated form the environment by at least one glass wall and cooling means (
4
,
20
) for varying the temperature of the inner part below and above the freezing temperature of water.
The invention offers considerable benefits.
By means of the electric field, the formation of frost can be controlled and visually impressive “fluffy frost work” may be achieved.


REFERENCES:
patent: 3681896 (1972-08-01), Velkoff
patent: 5407392 (1995-04-01), Laijoki-Puska
patent: 5565067 (1996-10-01), Chaffin, III
patent: 5841064 (1998-11-01), Maekawa et al.
patent: 0446528A2 (1991-09-01), None
patent: 5214961 (1977-02-01), None
patent: 1698600A1 (1989-04-01), None
patent: 1550297A (1990-03-01), None

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