Patent · US Expired

Solenoid operated valve apparatus

US4919390A · kind A · utility

21Cited by
4References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 22, 1988
Grant dateApr 24, 1990
Priority date
Expiry dateDec 22, 2008

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH01F2007/163
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A solenoid operated valve apparatus in which a solenoid device includes an inner yoke, a plunger guide disposed in the opposed relationship with the inner yoke, a plunger movably accommodated in s space formed between the inner yoke and the plunger guide, a bobbin frame disposed to surround the inner yoke and said plunger guide, a coil wound around the bobbin frame, and an outer yoke disposed to surround the coil. The bobbin frame is made of a polymeric material, and is adhered to the inner yoke and the plunger guide in a unitary structure.

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