Bag Lift Assembly for a Lined Bulk Material Container

Inactive Publication Date: 2015-05-21
CONECRAFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Benefits of technology

[0011]In a specific embodiment of the foregoing assembly, the pneumatic controller is a three-position, four-port, pneumatic valve with a closed center position. In another specific embodiment, the pneumatic controller is coupled within a pneumatic circuit that has a regulated pressure, and the pneumatic circuit further include a relief valve set to a pre

Problems solved by technology

If this occurs, then the liner may be damaged, or the maximum volumetric capacity of the bin and liner combination

Method used

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  • Bag Lift Assembly for a Lined Bulk Material Container
  • Bag Lift Assembly for a Lined Bulk Material Container
  • Bag Lift Assembly for a Lined Bulk Material Container

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[0018]Illustrative embodiments and exemplary applications will now be described with reference to the accompanying drawings to disclose the advantageous teachings of the present invention.

[0019]While the present invention is described herein with reference to illustrative embodiments for particular applications, it should be understood that the invention is not limited thereto. Those having ordinary skill in the art and access to the teachings provided herein will recognize additional modifications, applications, and embodiments within the scope hereof and additional fields in which the present invention would be of significant utility.

[0020]In considering the detailed embodiments of the present invention, it will be observed that the present invention resides primarily in combinations of steps to accomplish various methods or components to form various apparatus and systems. Accordingly, the apparatus and system components and method steps have been represented where appropriate by...

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Abstract

A lifting assembly for a polymeric liner disposed within a fluid material container. The assembly includes a pneumatic linear drive, and, an interface member that is supportively connecting to the polymeric liner. A tension line is coupled between the pneumatic linear drive and the interface member, and a line guide is positioned to route the tension line to a central location above the polymeric liner, and thereby correspondingly locates the interface member. A pneumatic controller actuates the pneumatic linear drive to move in a first direction, to move in a second direction, or to remain in a fixed position. Movement of the pneumatic linear drive in the first direction causes the tension line to lift the interface member in an upward direction, and, movement of the pneumatic linear drive in the second direction causes the tension line to lower the interface member in a downward direction.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to fluid material containers that are lined with a polymeric bag-type liner. More particularly, the present invention relates to an assembly for raising and lowering such a liner as it is filled or emptied, by using a pneumatic linear drive.[0003]2. Description of the Related Art[0004]Storage and processing containers are in widespread use in various industries and other endeavors. Many of these are used to contain liquids and other flowable bulk materials, such as powders and granular materials. While containing certain types of fluid materials, it is preferable to line the container with a polymeric membrane so that the bulk material is either impermeably contained in a suitable polymeric material, or to insure that the bulk materials does not contact the container itself. For example, in the case of pharmaceutical and food grade materials, a polymeric liner, such as PVC or polypropylene,...

Claims

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Application Information

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IPC IPC(8): B65B67/12
CPCB65B67/1211B65B69/0083B65D90/046B65D88/54
Inventor COX, C. ANTHONYAUSTIN, JAMES A.
Owner CONECRAFT
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