Patent · US Expired

Steam trap with thermal control element and method of assembling said trap

US4586655A · kind A · utility

1Cited by

7References

13Claims

0Family size

Assignee

GESTRA AG · DE

Inventors

Werner Foller · Stuhr, DE
Holm Klann · Bremen, DE

Key dates

Filing date	Dec 5, 1984
Grant date	May 6, 1986
Priority date	—
Expiry date	Dec 5, 2004

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T137/88038
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

There is provided a steam trap having a thermal control element arranged on the high-pressure side containing an expanding medium and a shut-off unit closing in the direction of flow. The shut-off unit includes two closure members and two valve seats forming two series-connected, independent sealing units, which are opened or closed one after the other in series fashion by the control element so as to reduce wear of the shut-off unit. The two sealing units are arranged in a single assembly which is coupled to the control element for ease of installation.

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