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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
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Dried product often creates an unsightly appearance, sometimes causing blocked outlets

Method used

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

Examples

Experimental program
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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...

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Abstract

An airless dispenser pump assembly (30) includes a pump mechanism with an inlet valve (57) that is configured to efficiency pump viscous fluids and that is able to be pre-primed when the pump mechanism is attached to a container. In one form, the inlet valve includes a seal member that seals an inlet port of the pump and an outer support member that secures the inlet valve to the rest of the pump mechanism. Two or more legs (88) generally extend in a circumferential direction between the support member and the seal member in order to create a large flow opening for fluid flow through the inlet valve when opened and to rapidly dose the inlet valve. The pump mechanism further includes an outlet valve (64) that is configured to draw fluid back from a nozzle of the pump after dispensing in order to minimize build up 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

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Application Information

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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
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