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Class Information
Number: 266/123
Name: Metallurgical apparatus > Having means for contacting a solid metalliferous material or metal object with a liquid > With heating means, e.g., flame contact > By heating means adapted to be inserted into a hollow object
Description: Device wherein the heating means is configured to pass into or through a cavity or passage formed in the article to be treated.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5134264 |
Device for the inductive heating of the inside of cylinder liners of reciprocating-piston engines for the purpose of hardening |
Jul. 28, 1992 |
| 4628167 |
Apparatus for inductively hardneing the interior surface of objects |
Dec. 9, 1986 |
| 4625090 |
Apparatus for inductively heat treating workpiece bore walls |
Nov. 25, 1986 |
| 4592537 |
Apparatus for heat treating and sizing thin walled articles |
Jun. 3, 1986 |
| 4468010 |
Method and apparatus for quench hardening thin-walled, elongated workpieces |
Aug. 28, 1984 |
| 4401485 |
Method for inductively heating thin-walled elongated workpieces |
Aug. 30, 1983 |
| 4298189 |
Apparatus for the continuous hardening of pump casings |
Nov. 3, 1981 |
| 4030711 |
Method and apparatus for the surface hardening of the inner surface of tube bends |
Jun. 21, 1977 |
| 4006337 |
Apparatus and method for heating a gun barrel bore |
Feb. 1, 1977 |
| 3958796 |
Quench-hardening of pipes |
May. 25, 1976 |
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