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US 6,206,664 B1Granted
Compact pump
AssigneeOkenseiko Co., Ltd.
InventorGoro Kakizawa
Life of this patent
Estimating the term…
Abstract
A compact pump composed by combining a cylinder into which a diaphragm portion is to be inserted, a case which accommodates a driving portion for driving the diaphragm portion and a valve housing, and clamping and fixing a combination of the members with a spring.
Claims7
A compact pump comprising:
- a diaphragm body having at least a diaphragm portion forming a pump chamber and a valve portion nearly in contact with said diaphragm portion in which said diaphragm portion and said valve portion are formed integrally with each other;
- a cylinder portion into which said diaphragm portion is to be inserted;
- a valve chamber in which said valve portion of said diaphragm body is disposed;
- a valve housing which has a discharge port communicating with said valve chamber;
- a case which accommodates a driving portion for driving said diaphragm portion;
- and a spring for fixing said case, said cylinder portion and said diaphragm body all together.
3 more elements
Dependencies are inferred from the claim text.