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.:

US 8602264 B1

PDF
Full Text
Expired
Date of Patent:
Dec. 10, 2013

Filed:

Oct. 27, 2008
Applicant:

Chung Kee Lee, Seoul, KR;

Inventor:

Chung Kee Lee, Seoul, KR;

Assignee:

Chong Woo Co., Ltd., Inchon, KR;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B67D 7/70 (2010.01); B67D 7/78 (2010.01); B67D 7/76 (2010.01);
U.S. Cl.
CPC ...
Abstract

A foam production pump includes a button () having an outlet port (), a housing (), a closure () for mounting the housing to a container, a stem () performing an up-and-down motion, a shaft () mounted in the lower part of the button, a foam net () for producing foam, a housing cap () for isolating an air space and a solution space of the housing from each other, an air piston (), a solution piston () mounted at the outside of the stem, an air valve () for opening and closing a piston air hole, a first compression spring () disposed between the shaft and the solution piston, a second compression spring () disposed between the shaft and a support groove of the housing cap, and an opening and closing member () for opening and closing a lower end inlet port of the housing when pumping.


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Lee, Chung. (2013). Foam production pump not causing contamination of contents (U.S. Patent No. 8602264). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8602264

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