Patent · US Expired

Pneumatic valve

US4540158A · kind A · utility

3Cited by
7References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 30, 1984
Grant dateSep 10, 1985
Priority date
Expiry dateMay 30, 2004

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/6851
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A pneumatic valve uses a body made of a synthetic material with a plurality of internal fluid ducts opening onto a face of the body via respective orifices. A metal plate is arranged in contact with the aforesaid face and is provided with sockets aligned with respective ones of the duct orifices and each containing a tapped hole capable of receiving a threaded connecting pipe. Resilient O-rings are used to provide a fluid-tight seal between the sockets and the ducts.

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