Baths – closets – sinks – and spittoons – Ventilation – Electric-motor pump
Reexamination Certificate
1999-11-16
2001-05-22
Eloshway, Charles R. (Department: 3751)
Baths, closets, sinks, and spittoons
Ventilation
Electric-motor pump
C004S477000, C004S482000
Reexamination Certificate
active
06233749
ABSTRACT:
BACKGROUND OF THE INVENTION
This invention relates to a portable toilet stool or bowl which can arrest within the stool the smell of feces discharged into the stool and which can effectively deodorize them.
Old people who grow physically weak while they are mentally normal and can intend to evacuate, physically handicapped people, and patients suffering from diseases or accidents, can hardly go to the toilet, and are compelled to use a portable stool or bowl beside their beds.
Since this kind of portable stools are used just beside beds, they are generally simple and bucket-shaped. Accordingly, the smell of feces discharged into such bucket-shaped stool displeases persons who work to dispose of them. It displeases other patients and attendants too. Those people and patients who are compelled to use stools of such simple structures, feel mentally painful, by themselves. Since stools in which feces were discharged, can hardly be cleaned in no time, on account of shortage of hands today, such displeasure and pain become worse.
Therefore, in order to lessen the smell of feces, a stool is sometimes filled with water about half, and they are dropped into the water. This can not, however, shut off completely the smell of feces, but this makes the stool heavy, resulting in making it more laborious to handle the stool.
Lately, bucket-shaped stools in which deodorizers are installed, and other stools having structures by which the smell of feces can partially be sucked, have been in the market. Although such stools are a little effective for reducing the smell when they are being used, as buttocks are located above the upper opening of stools so as to close it, they are ineffective, because the smell evaporates from the upper opening and escapes outside, whereby it can not be deodorized.
In view of the above, it is an object of this invention to provide a portable stool which can shut off the smell of feces within the stool when it is used and even after it has been used, so that it can not escape outside, but can effectively be deodorized.
SUMMARY OF THE INVENTION
In this invention, its portable stool is designed to have an air-curtain which cover all over the upper opening by air flows. In order to produce such air flows, one or plural air-suction openings are provided adjacently to the upper opening of the stool, and air is forcibly sucked into the air-suction openings by a suction fan so that the air-curtain can prevail over the upper opening of the stool.
The air is sucked with the smell into an air passage or passages connected to the air suction openings, is decomposed by an ozonizer located in the air passages, deodorized when it is passed through adsorption layers filled with adsorbents such as activated carbon and the like, and discharged from an exhaust opening as an odorless air.
REFERENCES:
patent: 1150862 (1915-08-01), Hardin
patent: 1248901 (1917-12-01), Pavlik, Jr.
patent: 1250701 (1917-12-01), Dixon et al.
patent: 1264793 (1918-04-01), Heniger
patent: 1270409 (1918-06-01), Haas
patent: 1343287 (1920-06-01), Shafer
patent: 2110956 (1938-03-01), Horbetz
patent: 5454122 (1995-10-01), Bergeron
patent: 223361 (1924-10-01), None
patent: 3-191126 (1991-08-01), None
Arisa Haruhiro
Fujita Atsumi
Sakuma Tetsuo
Sasaki Hideo
Atsugi Co., Ltd.
Eloshway Charles R.
Shlesinger & Arkwright & Garvey LLP
LandOfFree
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