Quotables
"The Americans have need of the telephone, but we do not. We have plenty of messenger boys."
Sir William Preece, chief engineer, British Post Office ; 1878
PatentStorm News
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 6004090 | Charging device for a blast furnace A charging device for being mounted above the top opening of a blast furnace body. The charging device includes a stationary hopper with a closable lower opening, and a rotary hopper with a closable lower opening with the rotary hopper being arranged belo... | 12/21/1999 |
| 5938432 | Top closing device for shaft furnaces A top closing device for shaft furnaces, particularly blast furnaces, including an inlet hopper with inlet pipe, a rotating, vertically non-adjustable chute carrier with rotary drive, a pivotable chute in the furnace interior with external drive means, an... | 08/17/1999 |
| 5829968 | Charging device for a shaft furnace A charging device for a shaft furnace with a lower bell comprises lower means of blockage allowing an upper hopper to be isolated in a sealed manner from a lower hopper and allowing the retention of the charging material. In their open position, these low... | 11/03/1998 |
| 5046908 | Installation for charging a shaft furnace The installation comprises a chute for distributing the charging material, a skip transport system, a closed casing containing a device for the controlled sluicing of the charging material between the discharge by the skips and the distribution chute, a l... | 09/10/1991 |
| 4881869 | Furnace charging throat construction In a throat stopper for shaft furnaces, in particular blast furnaces with two hoppers of which an upper hopper is rotatable through a drive device, the upper hopper is designed, by a stationary hood equipped with charging flap valves, as a sluice chamber ... | 11/21/1989 |
| 4878655 | Furnace charging throat construction In a throat stopper for shaft furnaces, in particular blast furnaces with two hoppers of which an upper hopper is rotatable through a drive device, the upper hopper is designed, by means of a stationary hood equipped with charging flap valves, as a sluice... | 11/07/1989 |
