Patent · US Expired

Regulator valve

US7021605B2 · kind B2 · utility

0Cited by
10References
7Claims
0Family size

Assignee

Inventor

  • Otto Lutz · Bad Königshofen im Grabfeld, DE

Key dates

Filing dateApr 13, 2002
Grant dateApr 4, 2006
Priority date—
Expiry dateApr 13, 2022

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/0491
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A control valve (1) comprises a housing (2) manufactured by a pressure die casting process, whose housing edges of upper semicircular bore hole are located exactly vertically above housing edges of lower semicircular bore hole and for this reason, the mold slide that forms the control edges (21) no longer has any contact point with the housing (2) and, as a consequence, symmetrical control edges (21) arise.

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