Title: Fumigating method and apparatus

Abstract: A mixture of an active ingredient such as insecticide, fungicide, repellent or the like and a blowing agent is heated with a hot air current produced by a suitable heat source and a fan to thermally decompose the blowing agent and cause the hot air current and the gas resulting from the thermal decomposition to vaporize and diffuse the active ingredient. The mixture is accommodated within a passage formed in a container and the passage is provided therein with a fan for forcing the hot air current therethrough. A fumigating method and an apparatus of this invention ensure very efficient, quick and uniform diffusion of the vapor of the active ingredients and are usable for controlling vermin and other purposes with high safety and great convenience.

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Inventors: Kashihara, Takanobu (Ako, JP)
Okuda, Fukuyasu (Ako, JP)
Yamaguchi, Masanaga (Ako, JP)
Nishimura, Akira (Ako, JP)

Application Number: 042424
Filing Date: 1979-05-25
Publication_date: 1980-10-14
Assignee: Earth Chemical Company (Ako, JP)
Primary Class(es): 422/36 43/125, 43/129, 392/386, 392/390, 422/1, 422/28, 422/37, 422/305, 424/40, 516/2
Other Classes:
US Patent Ref:

586759	Jul, 1897	Cock	422/305.
1652291	Dec, 1927	Tanner	422/305.
2047973	Jul, 1936	Lawton et al.	422/305.
2071171	Feb, 1937	McConnell	422/42.
2390843	Dec, 1945	McCauley et al.	422/305.
2440082	Apr, 1948	Flanders et al.	422/305.
2497612	Feb, 1950	Kutzman	422/125.
2540095	Feb, 1951	Buehler	422/305.
2590529	Mar, 1952	Gillies et al.	422/29.
2682461	Jun, 1954	Hutchison	422/40.
2690501	Sep, 1954	Laibow	422/305.
2767511	Oct, 1956	Kissner et al.	422/306.
2813187	Nov, 1957	Rovira	422/306.
3446893	May, 1969	Hanford et al.	252/350.
3645931	Feb, 1972	Nornanton	252/350.
3748438	Jul, 1973	Costello	422/305.
3806323	Apr, 1974	Thompson	422/126.
3903015	Sep, 1975	Roos et al.	252/350.
3956849	May, 1976	Radulesui	424/42.
3986838	Oct, 1976	Reichert	222/5.
4163038	Jul, 1979	Nishimura et al.	422/36.
4171340	Oct, 1979	Nishimura et al.	422/36.

Other Refs: 46-1908050-125309673429699766

May, 1971	JP.
Oct, 1975	JP.
Jun, 1952	GB.
Nov, 1953	GB.

Primary Examiner: Richman, Barry S.
Assistant Examiner:
Attorney: Armstrong, Nikaido, Marmelstein & Kubovcik