Airless dispensing pump with tamper evidence features

An unpacking warning, dispensing pump technology, applied in special dispensing devices, dispensing devices, liquid dispensing, etc., can solve problems such as unsightly appearance and outlet blockage

Active Publication Date: 2007-02-21
RIEKE
View PDF1 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dried product often creates an unsightly ap

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
  • Airless dispensing pump with tamper evidence features
  • Airless dispensing pump with tamper evidence features
  • Airless dispensing pump with tamper evidence features

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0058] To facilitate and understand the principles of the invention, specific language will now be used to describe the invention by reference to the embodiments illustrated in the drawings. It should be understood, however, that no limitation of the scope of the invention is thereby intended. Any alterations and further improvements in the described examples, and further applications of the principles of the invention described herein, will be apparent to those skilled in the art to which the invention pertains. One embodiment of the invention is shown in great detail; nevertheless, it will be clear to those skilled in the relevant art that some features not relevant to the invention have not been shown for the sake of clarity.

[0059] An airless pump assembly 30 according to one embodiment of the present invention, together with other parts of the present invention figure 1 with 2 shown in . As shown, the pump assembly 30 includes a container 32 for storing fluid, a foll...

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

An airless dispensing pump assembly including a pump mechanism with an inlet valve configured to efficiently pump a viscous fluid and to allow prefilling when the pump mechanism is attached to a container. In one form, the inlet valve includes a sealing member that seals the pump inlet and an outer support member that secures the inlet valve to the remainder of the pump mechanism. Two or more legs extend in a circular direction between the support member and the sealing member to form a large flow opening for fluid flow through the inlet valve when open and to rapidly close the flow inlet valve. The pump mechanism also includes an outlet valve configured to draw back fluid from the nozzle of the pump after dispensing, thereby minimizing buildup around the nozzle.

Description

[0001] References to related applications [0002] The present application is a continuation-in-part of US Patent Application No. 10 / 930,010, filed August 30, 2004, which is hereby incorporated by reference in its entirety. technical field [0003] The present invention relates generally to airless dispensing pumps, and more particularly, but not exclusively, to an airless dispensing pump with a tamper evidence feature. Background technique [0004] Airless dispensing pumps have been developed for a wide variety of applications, including dispensing personal care products such as skin toners, body lotions, toothpaste and hairspray, as well as food sauces. Many of these products deteriorate rapidly when exposed to air, so it is important to prevent air from entering the packaging when dispensing the product. In a typical dispensing pump application, air can enter the container through the vent channel, allowing the pressure inside the package to equalize as the product is di...

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
IPC IPC(8): B65D55/02B65D47/34B65D83/14B65D83/22B65D83/28B67D7/32B05B11/00
CPCB05B11/0097B05B11/3059B05B11/3047B05B11/0048B05B11/3097B05B11/3067B05B11/3001B05B11/0032B05B11/0018B05B11/00442B05B11/028B05B11/1001B05B11/1059B05B11/1069B05B11/1047B05B11/1097B05B11/0039
Inventor B·R·劳J·W·斯潘塞R·D·罗尔D·J·普里彻特
Owner RIEKE
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap