×

Check valve for a self-priming pump

  • US 7,784,489 B2
  • Filed: 08/09/2006
  • Issued: 08/31/2010
  • Est. Priority Date: 08/11/2005
  • Status: Expired due to Fees
First Claim
Patent Images

1. A self-primer pump having a check valve, comprising:

  • a pump casing;

    a check valve inlet;

    a flapper valve located within a portion of said pump casing and positioned to register against said check valve inlet, said flapper valve having a hinge and two laterally-extending hinge pin ends for attachment of said flapper valve to an attachment apparatus;

    an attachment apparatus for securing said flapper valve to said pump casing, said attachment apparatus comprising an attachment member positioned external to said pump casing and a bracket apparatus extending in a direction from said attachment member into said pump casing to engage and retain said flapper valve in position within and against said pump casing by secure engagement between said attachment apparatus and said flapper valve; and

    a spacer positioned between each said hinge pin end and said attachment apparatus to provide secure engagement of said hinge pin ends against said pump casing.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×