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:
Nov. 19, 2013
Filed:
Oct. 26, 2009
Yoshiyuki Kakuta, Tokyo, JP;
Yoshiyuki Kakuta, Tokyo, JP;
Yoshino Kogyosho Co., Ltd., Tokyo, JP;
Abstract
A discharge pump equipped with a push-down head in which a nozzle is opened and closed by advancing and retracting a valve rod member by a lever member and a first pressing member, wherein a second pressing member is provided between the base and the tip of the valve rod member to prevent back flow of air. A push-down head discharge pump has a head body configured by providing a liquid flow pipe to the lower surface of a laterally facing cylinder section so as to extend vertically downward from the lower surface, the liquid flow pipe communicating with a stem of a discharge pump, the cylinder section having a nozzle opened at the front thereof. When the head body is pushed down, a valve rod member mounted in the cylinder section is advanced and retracted. The valve rod member is composed of the base and the tip, and a second pressing member is mounted between the base and the tip.