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:
May. 05, 2009
Filed:
Jun. 30, 2004
Applicant:
Kenichi Hori, Kanagawa, JP;
Inventor:
Kenichi Hori, Kanagawa, JP;
Assignee:
Mitsumi Electric Co., Ltd., Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61B 5/02 (2006.01); F04B 23/00 (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. The actuator is provided in the pump chamber. An exhaust valve is provided with a valve body, formed with a slit through which air the pump chamber is exhausted, and a screw member, screwed into a first wall of the pump case to adjust an opening amount of the slit by a screwed amount thereof, thereby adjusting an exhausting rate of the air in the pump chamber. The pump case is formed with a ventilation hole communicated with the pump chamber to allow the air exhausted from the slit to pass through.