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06/21/07 - USPTO Class 417 |  68 views | #20070140874 | Prev - Next | About this Page  417 rss/xml feed  monitor keywords

Portable vacuum pump apparatus

USPTO Application #: 20070140874
Title: Portable vacuum pump apparatus
Abstract: The invention provides a portable vacuum pump apparatus that facilitates vacuuming to purge the air from a fluorocarbon refrigerant piping system of an air conditioner. A portable vacuum pump apparatus is used to purge the air from a fluorocarbon refrigerant piping system of an air conditioner by means of vacuuming. The portable vacuum pump apparatus includes a main body having a suction port portion and an exhaust port portion. The main body is provided with a rotating body that is rotatably disposed. An electric screwdriver receiving portion adapted to permit an electric screwdriver to be inserted therein is formed in an axial end of a rotor shaft of the rotating body, i.e. an end projecting outward from the main body. (end of abstract)



Agent: Darby & Darby P.C. - New York, NY, US
Inventors: Toshifumi Ohashi, Shigeru Suwa
USPTO Applicaton #: 20070140874 - Class: 4174103 (USPTO)

Portable vacuum pump apparatus description/claims


The Patent Description & Claims data below is from USPTO Patent Application 20070140874, Portable vacuum pump apparatus.

Brief Patent Description - Full Patent Description - Patent Application Claims
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