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.:
Date of Patent:
Feb. 19, 2008
Filed:
Jun. 30, 2004
Applicant:
Ikuichiro Nawa, Kanagawa, JP;
Inventor:
Ikuichiro Nawa, Kanagawa, JP;
Assignee:
Mitsumi Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04B 45/00 (2006.01); F04B 45/047 (2006.01); F04B 45/04 (2006.01); A61B 5/022 (2006.01);
U.S. Cl.
CPC ...
Abstract
A diaphragm is provided in a pump case so as to define a pump chamber communicated with an external member having an air chamber. A motor actuates the diaphragm to introduce air into the pump chamber and to supply the introduced air to the air chamber. An exhaust valve exhausts air in the pump chamber to lower a pressure in the air chamber. The exhaust valve is provided with a valve body and an actuator which is driven by the motor to actuate the valve body so as to open or close an exhaust port communicated with the pump chamber.