Abstract: This invention relates to a herbicidal foam composition comprising, on the basis of the total weight of the composition, (a) a herbicide selected from the group consisting of Bialaphos, Glufosinate, Glyphosate and a mixture thereof, (b) an anionic and/or nonionic surfactant(s), (c) a solvent, (d) a foam controlling agent selected from the group consisting of silicone oil, a C.sub.1 -C.sub.10 alcohol and a mixture thereof, (e) water as a diluent and (f) liquefied petroleum gas as a propellant, the pH of said composition being adjusted to within about 3-11.

Abstract: A device for sealing a steel door of a coke oven includes a ring-shaped steel packing fitted over an outer surface of the steel door so as to contact a side wall of the coke oven when the steel door is closed, a packing retainer fitted over the outer surface of the steel packing and provided with a ring-shaped groove opened toward the side wall, a ring-shaped packing assembly fitted into the groove so as to press against the side wall and a holder for movably holding the steel packing and the packing retainer. The packing assembly extends closer to the side wall of the coke oven than the steel packing.

Abstract: A device for sealing a door of a coke oven includes a ring-shaped steel packing fitted over an outer surface of the door so as to contact a side wall of the coke oven when the door is closed, a packing retainer fitted over the outer surface of the steel packing and provided with a ring-shaped groove opened toward the side wall and a ring-shaped packing assembly fitted into the groove so as to press against the side wall. The packing assembly extends closer to the side wall of the coke oven than the steel packing.