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:
Jan. 09, 2018
Filed:
Jul. 08, 2014
Yonwoo Co., Ltd., Incheon, KR;
Shin-Bok Jung, Incheon, KR;
YONWOO CO., LTD., Incheon, KR;
Abstract
A piston structure of a pumping-type cosmetic container. The piston structure includes two pistons which come into close contact with an inner wall of a container body and are overlapped. During a pumping operation, a first piston firstly ascends to a certain section and then lifts up a second piston located on the lower part thereof such that the first piston and the second piston ascend together; thus, it is possible to reduce the volume taken up by the pistons when the contents are initially filled, while the thickness for a normal operation of the pistons is still maintained, so that relatively more contents for the same volume can be filled in the same container.