Deflation valve for compression bag and compression bag equipped with the deflation valve
US7475864B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | May 31, 2006 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Jul 27, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7839
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A deflation valve for a compression bag comprising a base 2, a cover 3, and a valve body 4, the base 2 serving as a deflation opening 22 that communicates the inside and outside of the bag, the cover being provided with a through hole 32 that leads to the inside of the cover, the valve body 4 being able to close the deflation hole 22 by being drawn toward the hole under negative pressure inside the compression bag, wherein a pressing portion 33 is formed underside of the cover 3 in order to press the valve body, and a valve housing chamber S is defined by the sidewall 24 and diaphragm 24 on the base 2 and the lower edge of the pressing portion 33 of the cover 3, while the valve body 4 is neither secured to the base 2 and the cover 3 nor pressed by any elastic member, but is disposed inside the valve hosing chamber S in a free state, whereby the valve body 4 is movable upward and downward in the chamber S.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.