U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Icon_funbox Quotables

"I watched his countenance closely, to see if he was not deranged ... and I was assured by other senators after he left the room that they had no confidence in it."

U.S. Senator Smith of Indiana ; After seeing Samuel Morse demonstrate the telegraph.

Newsletter  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.

 

Class 266/253 - Bottom feeding furnace


Subclass of Class 266 - Metallurgical apparatus
Definition: Device wherein the article is loaded into a treating chamber
No. of patents: 15
Last issue date: 09/23/2008


NumberTitleIssue Date
7427375Diffuser for an annealing furnace
A diffuser (24) for an annealing furnace has a plurality of radially extending generally and vertically oriented vanes (40) for radially directing furnace gases. The vanes have top edges (42) defining a generally planar support and the top edges...
09/23/2008
6270597Process for continuous heating and cleaning of wire and strip products in a stratified fluidized bed
This invention is directed to a method for annealing strand wires or strips in a fluidized bed reactor having an atmosphere of fluidized gases flowing through fluidized particles. The method provides for stratifying the atmosphere of fluidized gases by pa...
08/07/2001
5100112Vertical-shaft furnace for the heat-treatment of metallic workpieces
A vertical-shaft furnace serves for heat-treating metallic workpieces. It comprises a furnace housing with a heating chamber arranged therein. The heating chamber is provided with a closed wall at its upper end, while its lower end can be opened in order ...
03/31/1992
4861000Installation having several elements for heat treatments
An upper line comprises three furnaces 1, 2, 3 and a washing machine 4, in straight side-by-side arrangement. A lower line comprises movable treatment elements 7, 8, 9 movable on conveyor track 5, and fixed vat 17. Car 6 permits feeding all the elements o...
08/29/1989
4858893Bell furnance and hardening vat arrangement
A bell furnace (2) and hardening vat (3) arrangement comprises charge (4) supporting means (14, resp. 29, 32, 33) connected to the bell and extending toward the center of the bell. It comprises means (18, 18', resp. 28) for imparting solely to the bell ei...
08/22/1989
4810191Processing steel slabs
A method of processing steel slabs in which the slabs are continuously routed through a furnace to a slabbing mill the slabs being sequentially charged through the bottom of the furnace by a reciprocating mechanism whereby on the upward stroke the slab ch...
03/07/1989
4802844High capacity, retractable furnace hearth
A retractable, roller hearth for use in an industrial heat treat furnace is disclosed whereby the alloy rollers are retracted from their load bearing position when the furnace heat treat processes are underway thus maintaining the rated load capacity of t...
02/07/1989
4455177Method and apparatus for chemical heat treatment of steel parts utilizing a continuous electric furnace
A continuous electric furnace for chemical heat treatment of steel parts comprises a parts heating chamber, a parts vertical supply chamber and a cooling chamber, all arranged in line. The parts vertical supply chamber is connected to a processing chamber...
06/19/1984
4415145Metal charge treatment apparatus
Apparatus for treating a metal charge comprises a box furnace and a container containing material for treating the charge. The box furnace is mounted on props whose length is sufficient to permit the container to be positioned under the furnace. The furna...
11/15/1983
4237359Method and apparatus for the electroinduction heating of metal workpieces
A method of heating metal workpieces so as to minimize scale formation and decarburization using an electroinduction heater, comprises placing the workpiece in the vicinity of the induction heater, reducing the air present in the vicinity of the workpiece...
12/02/1980
4229162Closure apparatus for a slab furnace and method of heating slabs therein
Apparatus and method for closing bottom-entry slab furnaces in which a door is pivotably connected to the slab elevator by a horizontally arranged hinge. The door is provided with a cam follower that cooperates with a cam apparatus to controllably swing t...
10/21/1980
4103880Apparatus for heat treating drill blanks
Apparatus for automatically heat treating a plurality of elongated articles, wherein only a portion of the articles are subjected to the heat treating operation, the remaining portion thereof being enveloped and prevented from reaching a temperature durin...
08/01/1978
4074963Kiln
A kiln has a bottom opening for loading the objects to be fired into the firing chamber. The door for closing the firing chamber provides the hearth of the kiln and supports the objects to be fired. A parallel linkage mechanism maintains the door in a hor...
02/21/1978
4003697Pressure furnace for treating products at high temperature and high pressure
A pressure furnace for treating products at high temperature and high pressure includes a high pressure chamber formed of a vertical high pressure cylinder with end closures projecting into the cylinder and a press stand with a window aperture which is so...
01/18/1977
3972704Apparatus for making vitreous silica receptacles
Apparatus is disclosed for automated mass production of precision transparent silica glass products in accordance with a unique process in which slip-cast fused silica articles are rapidly heated and sintered in a vacuum or in a helium or hydrogen atmosph...
08/03/1976
 
Sign InRegister
Username  
Password   
forgot password?