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

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.

1 . A fill port safety assemblage for a self-priming pump, comprising: 
 a fill port cover structured for positioning over the fill port of a self-primer pump, said fill port cover having a depression formed in the top thereof;    a sealing band for positioning against said fill port cover;    a retaining clamp for positioning over said fill port cover to secure said fill port cover to a fill port; and    an anchor bolt positioned through said retaining clamp, said anchor bolt having a terminal end sized for being received in said depression of said fill port cover.    
   
   
       2 . The fill port safety assemblage of  claim 1  where said sealing band is a o-ring.  
   
   
       3 . The fill port safety assemblage of  claim 2  wherein said o-ring has non-adherent qualitites.  
   
   
       4 . The fill port safety assemblage of  claim 3  wherein said o-ring is coated with Teflon®.  
   
   
       5 . The fill port safety assemblage of  claim 1  wherein said retaining clamp is formed with a depression at either end of said retaining clamp to receive the head of a cap screw.  
   
   
       6 . The fill port safety assemblage of  claim 5  wherein said sealing band is formed as an o-ring.  
   
   
       7 . The fill port safety assemblage of  claim 6  wherein said o-ring is formed with non-adherent qualities.  
   
   
       8 . A fill port safety assemblage for a self-priming pump, comprising: 
 a fill port cover structured for positioning over the fill port of a self-primer pump;    an o-ring for positioning between said fill port cover and the fill port of the pump; and    a retaining clamp for positioning over said fill port cover to secure said fill port cover over the fill port.    
   
   
       9 . The fill port safety assemblage of  claim 8  wherein said o-ring is made of a material which imparts a non-adherent quality to said o-ring.  
   
   
       10 . The fill port safety assemblage of  claim 8  wherein said o-ring is treated to have a non-adherent quality.  
   
   
       11 . The fill port safety assemblage of  claim 10  wherein said o-ring is coated with Teflon®.  
   
   
       12 . A fill port safety assemblage for a self-priming pump, comprising: 
 a fill port cover structured for positioning over the fill port of a self-primer pump;    a sealing band for positioning between said fill port cover and the fill port; and    a retaining clamp having two opposing holes for receiving screws therethrough, said holes each having a depression associated therewith for receiving the head of a cap screw through said opposing holes for securing said retaining clamp to a pump casing.    
   
   
       13 . The fill port safety assemblage of  claim 12  further comprising an anchor bolt positionable through said retaining clamp, and further wherein said fill port cover has a depression formed in the top of said fill port cover for receiving a terminal end of said anchor bolt.  
   
   
       14 . The fill port safety assemblage of  claim 12  wherein said sealing band is an o-ring.  
   
   
       15 . The fill port safety assemblage of  claim 14  wherein said o-ring has a non-adherent quality.