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

Continuous heating induction furnace

Patent 4079222 Issued on March 14, 1978. Estimated Expiration Date: Icon_subject March 14, 1995. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2959660

3596036

Inventor

Assignee

Application

No. 05/727141 filed on 09/27/1976

US Classes:

219/658, Lift (i.e., vertical movement)219/654Charge or discharge

Examiners

Primary: Reynolds, Bruce A.

Attorney, Agent or Firm

Foreign Application Priority Data

1975-10-17 DT

Abstract

A continuous heating induction furnace in which workpieces are mounted on a receiver for step-wise movement from a furnace inlet to outlet through a longitudinally extending chamber. A pair of lifter rods extend through bores at the chamber floor to engage the workpieces at each of a plurality of stops or stations and are in turn rigidly connected to a bar element extending below the chamber. The receiver reciprocates along the longitudinal direction while the lifter rods elevate the workpieces during backward receiver movement. The receiver is formed as a pair of tubes which engage bearings mounted at separated locations along the chamber so that the length of the chamber is not limited by the sag characteristics of the receiver.

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