Patent · US Expired

Sealed type fluid reservoir

US4232518A · kind A · utility

5Cited by
4References
2Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 21, 1978
Grant dateNov 11, 1980
Priority date
Expiry dateNov 21, 1998

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T137/7881
  • WIPO fieldTransport
  • WIPO sectorMechanical engineering

Abstract

A sealed type fluid reservoir in which a valve member is incorporated in a main cap which is coupled with an upper end of a casing. The pressure in the interior of the casing is maintained at atmospheric level by the valve member despite pressure variation in the interior of the casing.

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