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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8017090 B1

PDFFull Text
Date of Patent:
Sep. 13, 2011

Filed:

May. 21, 2009

Apparatus and method for rapid and continuous generation of phosphine gas

Applicants:

Shroff Rajnikant Devidas, Mumbai, IN;

Pushpaksen P. Asher, Guiarar, IN;

Inventors:

Shroff Rajnikant Devidas, Mumbai, IN;

Pushpaksen P. Asher, Guiarar, IN;

Assignee:

United Phosphorus Ltd., Mumbai, IN;

Attorney:

Merchant & Gould P.C.

Primary Examiner:

Jill Warden

Assistant Examiner:

Monzer R Chorbaji

Int. Cl.
CPC ...
B01J 19/00 (2006.01); B01J 35/02 (2006.01); B01J 3/00 (2006.01); A62B 7/08 (2006.01); A61L 2/00 (2006.01); A61L 9/00 (2006.01); C01B 25/00 (2006.01); B01F 13/02 (2006.01); B01D 21/26 (2006.01); B01D 45/12 (2006.01); B01D 19/00 (2006.01); F15C 1/16 (2006.01);
U.S. Cl.
CPC ...
Abstract

Phosphine gas is generated by agitating a reaction mixture of a metal phosphide and water with agitation air in a reaction pot of a phosphine gas generator. The resulting phosphine gas is then diluted with dilution air to produce a fumigant phosphine gas which is directly delivered to a commodity for fumigation. The reaction pot does not have any rotating means such as agitators, rotors, or stirrers. The generator provides on-site generation of phosphine gas in a rapid manner improving the fumigation efficiency for a commodity, such as grain, preferably contained within a storage structures, such as a grain silo. The generator has a built in deactivation system for the unused metal phosphide and phosphine gas.

Find Patent Forward Citations

Devidas, Shroff. (2011). Apparatus and method for rapid and continuous generation of phosphine gas (U.S. Patent No. 8017090). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8017090

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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