Patent · US Expired

Arc furnace roof

US4323718A · kind A · utility

74Cited by

3References

10Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Otto Buhring · Hürth, DE
Gerardus J. W. Dreessen · Vlissingen, NL
Jacob W. H. Groeneveld · Middelburg, NL
Robert Queck · Wissen, DE
Heinrich Thome · Kerpen, DE
Gerrit J. Willemsen · Middelburg, NL

Key dates

Filing date	Jun 17, 1980
Grant date	Apr 6, 1982
Priority date	—
Expiry date	Jun 17, 2000

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF27B3/16
WIPO fieldThermal processes and apparatus
WIPO sectorMechanical engineering

Abstract

The invention relates to an arc furnace roof. The roof is comprised of a metal cover which is bolt-connected to the furnace shell. Secured to the lower side of the cover is a plurality of shackle hooks, each of said shackle hooks having an anchor bolt hooked therein. The metal cover has a first layer of insulating concrete applied to its lower side and a second layer of refractory concrete applied to the hard first layer of insulating concrete, the two layers of insulating and refractory concrete, respectively, embedding the shackle hooks and anchor bolts.

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