Unlock instant, AI-driven research and patent intelligence for your innovation.

Combination umbrella and inverted bi-directional valve

一种组合阀、双向阀的技术，应用在组合阀领域，能够解决泄漏等问题

Active Publication Date: 2007-04-11
VERNAY LAB
View PDF1 Cites 19 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the duckbill portion of the valve is usually only limited in preventing flow in the direction of dispensing and will leak at relatively low differential pressures
For example, combined duckbill-umbrella valves can leak when used with containers of liquids that are upside down in use

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Combination umbrella and inverted bi-directional valve
  • Combination umbrella and inverted bi-directional valve
  • Combination umbrella and inverted bi-directional valve

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] All citations in relevant part are hereby incorporated by reference; the citation of any document is not admitted to be prior art with respect to the present invention.

[0020] The embodiments disclosed below are not intended to be exhaustive or to limit the invention to the form disclosed in the following detailed description. Rather, embodiments of the invention are described so as to enable those skilled in the art to employ its techniques, but represent only specific expressions of the invention.

[0021] In this document, the term "check two-way valve" is used to denote the portion of the combination valve that has a structure similar to that of a conventional two-way valve except that the flexed portion of the valve is reversed (or reversed) relative to the substantially cylindrical portion. Finally, the check two-way valves described herein are characterized as having a generally concave outer surface, whereas conventional two-way valves have a generally convex ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A combination valve including a valve body having an inverted bi-directional valve portion and an umbrella portion is disclosed. In accordance with one aspect of the invention, a combination valve includes a valve body (12) with a substantially cylindrical portion (14) defining a flow path, a resilient umbrella valve portion (26) extending annularly from the valve body and an inverted bi-directional valve portion provided in the flow path. The inverted bi-directional valve portion includes an interior surface, an exterior surface and at least one normally closed slit (24) extending therebetween, wherein the exterior surface of the inverted bi-directional valve portion includes a generally concave curved portion when the slit is closed.

Description

technical field [0001] The present invention relates to a combined fluid valve, and more particularly to a combined valve including a check bi-directional valve combined with an umbrella valve, which can supply fluid corresponding to a change in pressure difference. Background technique [0002] Current combination fluid valves include variations of those duckbill-umbrella valves. A combined duckbill-umbrella valve allows a fluid (usually air) to pass through the umbrella valve portion along a first flow path into a container or pump chamber, and allows a second fluid (usually a liquid product) to pass through the duckbill valve portion through a second flow path. Two flow paths exit the container or pump chamber. However, the duckbill portion of the valve typically provides only limited protection against flow in the direction of dispensing, leaking at relatively low differential pressures. For example, duckbill-umbrella combination valves can leak when used with containe...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16K17/19F16K15/14B65D51/16A61M39/24
CPCA61M2039/242B65D51/1644Y10T137/7842A61M39/24Y10T137/778A61M2039/2426Y10T137/7772Y10T137/784F16K17/19F16K15/148
Inventor J·C·贝利
Owner VERNAY LAB