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Packing insertion tool for paint and other fluid pumps

A technology for inserting tools and bodies, applied in the components of pumping devices for elastic fluids, manufacturing tools, pumps, etc., can solve problems such as difficult handling and installation of envelopes, inability to coaxial

Active Publication Date: 2019-10-11
GRACO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Especially when the enclosures are in a stacked arrangement, it can be difficult to handle and install the enclosures
Within a pump, the enclosures are arranged coaxially with each other and in contact with each other, but when not secured in place, the coaxial, contacting alignment may not be possible

Method used

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  • Packing insertion tool for paint and other fluid pumps
  • Packing insertion tool for paint and other fluid pumps
  • Packing insertion tool for paint and other fluid pumps

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] figure 1 is a cross-sectional view of the pump 10 . Pump 10 includes piston 12, pump cylinder 14, check valve 16a, check valve 16b, retaining nut 18, packing stack 20a, and packing stack 20b. Piston 12 includes a piston rod 22 and a piston head 24 . The piston rod 22 includes a first end 26 and a second end 28 . The first end 26 includes a club head 30 . The inlet housing 32 is provided at the bottom of the pump cylinder 14 . The piston packing stack 20a includes glands 34a, 34b and packings 36a, 36b. Throat packing stack 20b also includes glands 34a, 34b and packings 36a, 36b.

[0021] The pump 10 reciprocates a piston 12 within a pump cylinder 14 to pump various fluids, examples of which include paint, water, oil, dye, varnish, aggregate, coating, and solvent, among others. Pump 10 can generate high fluid pumping pressures, such as 3000 to 5000 pounds per square inch (psi) or even higher. High fluid pumping pressures can be used to atomize the fluid into a spra...

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PUM

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Abstract

A packing insertion tool for inserting a packing stack into a cylinder of a piston pump includes a packing holder on which the packing stack is mounted. The packing holder includes a body, a handle disposed at a first end of the body, and a plurality of fingers disposed at a second end of the body. The fingers extend axially from the body and the packing stack is mounted on the fingers, between the body and a retaining feature disposed at a distal end of the fingers. The fingers can flex to allow the diameter of the distal end of the fingers to change as the packing stack slides on to and offof the fingers.

Description

[0001] Cross References to Related Applications [0002] This application claims U.S. Serial No. 62 / 648,996, entitled "Encapsulated Insertion Tools for Paint Pumps and Other Fluid Pumps," filed March 28, 2018, by J. Horning, W. Blenkush, and A. Legatt The benefit of the provisional application, the disclosure of which is hereby incorporated by reference in its entirety. Background technique [0003] The present disclosure relates to piston pumps, and more particularly to sealing elements within the pumps. [0004] Piston pumps are used to pump fluids, usually under high pressure. The pump elements disclosed herein are particularly useful for pumping paints, varnishes, and other coatings that are often abrasive, viscous, and / or difficult to pump. The envelope is used to facilitate the formation of a dynamic seal in this difficult fluid application. [0005] The envelope is a ring of sealing material. The enclosure may be formed from leather, rubber, polymers (eg, ultra-high...

Claims

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Application Information

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IPC IPC(8): B25B27/00
CPCB25B27/0028F04B15/02F04B53/143F04B53/164B25B27/12B25B27/02B25B27/24F16K41/02
Inventor 杰里米·D·豪仑英威廉·M·布兰库什奥古斯特·F·莱格特
Owner GRACO INC