Fill port for a self-priming centrifugal pump, with safety device

US20070071619A1Inactive Publication Date: 2007-03-29ENVIROTECH PUMPSYSTEMS INC
10 Cites 4 Cited by

Patent Information

Authority / Receiving Office
US · United States
Current Assignee / Owner
ENVIROTECH PUMPSYSTEMS INC
Publication Date
2007-03-29
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A safety cover for the fill port of a self-primer pump is structured to improve the seal between the fill port cover and the fill port in the pump casing to thereby control the release of steam from the pump, and includes an improved sealing band between the fill port and fill port cover, an improved fill port cover design and an improved retaining clamp design.
Need to check novelty before this filing date? Find Prior Art

Description

CROSS-REFERENCE TO RELATED APPLICATION

[0001] This application is a non-provisional application claiming priority to provisional patent application Ser. No. 60 / 707,097 filed Aug. 10, 2005.BACKGROUND OF THE INVENTION

[0002] 1. Field of the Invention

[0003] This invention relates to self-primer centrifugal pumps, and specifically relates to a fill port assembly having improved safety construction.

[0004] 2. Description of Related Art

[0005] Self-priming centrifugal pumps are well-known and frequently used in industries where processing fluids with entrained solids is required. Self-primer pumps, also known as trash pumps, are characterized as having a casing which houses a suction chamber and a separation chamber divided by a wall or plenum. An impeller positioned in a volute section of the pump receives fluid from the suction chamber and delivers it by centrifugal action into the separation chamber where it is eventually expelled through an outlet.

[0006] In operation of a self-prime...

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