Patent · US Expired

Valve seating system

US6851659B2 · kind B2 · utility

6Cited by
4References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 9, 2001
Grant dateFeb 8, 2005
Priority date
Expiry dateJan 14, 2022

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/6065
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

The present invention relates to a closure device, in particular for closing ducts in a valve-accommodating member in which pressure medium is conveyed, comprising a rotationally symmetric closure member that is wedged in an accommodating bore of a housing. The calked joint is configured as a calking cone so that the accommodating bore forms a funnel-shaped contraction in the direction of the closure member, said contraction covering the periphery of the closure member in the area of a collar, and succeeding the calking cone is a second housing step that is expanded in relation to the first housing step, said step being formed by the housing material deforming plastically to the funnel-shaped contraction of the accommodating bore.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.