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:
Mar. 12, 2002
Filed:
Nov. 02, 2000
Satoshi Kidooka, Tokyo, JP;
Teruo Ouchi, Saitama, JP;
Asahi Kogaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Abstract
A spray device used for an endoscope, the spray device having a liquid transfer tube and a spray nozzle connected to a distal end of the liquid transfer tube, includes at least one spiral guide channel; a liquid whirling chamber positioned in front of at least one spiral guide channel to be connected to an outlet thereof; and an orifice formed at a center of a front inner surface of the liquid whirling chamber. The front inner surface includes a concave surface, and the concave surface is formed so that the orientation of a tangential plane at a point on the front inner surface becomes closer to the orientation of a plane normal to the axis of the spray nozzle as the point on the front inner surface approaches the axis of the spray nozzle.