ApplicationNo. 05/734130 filed on 10/20/1976
US Classes:266/275, Receptacle220/318, Handle attached220/326Biased
ExaminersPrimary: Dost, Gerald A.
Attorney, Agent or Firm
International ClassesF27D 1/18 (20060101)
B22D 41/00 (20060101)
Foreign Application Priority Data1975-10-29 DE
AbstractA cover device suitable for casting vessels or the like is constructed to have an annular edge portion connected to the vessel by spring means. The cover has also a central portion corresponding to opening of the edge portion and a locking means is provided for locking the central portion with said edge portion.