| Patent Number |
Title Of Patent |
Date Issued |
| 4531036 |
Apparatus and method for inductively hardening small bores |
July 23, 1985 |
| A method and apparatus for hardening a small internal passage in a workpiece wherein the workpiece is indexed into coaxial alignment between axially spaced inductor coils and an actuator telescopically inserts a magnetically permeable flux concentrating rod through the passage, and c |
| 4501942 |
Method and apparatus for uniform induction heating of an elongated workpiece |
February 26, 1985 |
| Method and apparatus for uniformly heating a workpiece such as a sucker rod or the like having a uniform cross-section over a major portion of its length and an enlargement adjacent each end thereof. A multi-turn inductor is coaxially disposed around a portion of an elongated workpath wi |
| 4482793 |
Apparatus for simultaneously heating a plurality of elongated workpieces |
November 13, 1984 |
| A device for inductively heating simultaneously and alike a plurality of identical elongated workpieces each having at least two axially spaced portions, to produce identical predetermined heat profiles in the workpiece throughout their longitudinal extents. The workpieces are convey |
| 4420667 |
Induction heating method and apparatus for elongated workpieces |
December 13, 1983 |
| Elongated workpieces having an extended intermediate portion of substantially uniform cross-section and axially spaced end or other portions of enlarged cross-section are inductively heated to a desired surface temperature by axially moving them at a continuous rate of speed coaxiall |
| 4418259 |
Method and apparatus of uniform induction heating of an elongated workpiece |
November 29, 1983 |
| A method for uniformly heating an elongated workpiece having a first portion with uniform cross-section over a major portion of the workpiece length and a second portion having a larger cross-section than the first portion. A multi-turn inductor is operatively mounted on a carriage or th |
