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

Grate plate for pusher grate coolers for the cooling of hot material

Patent 5626089 Issued on May 6, 1997. Estimated Expiration Date: Icon_subject January 16, 2016. 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

Grate plate with replaceable wear surfaces devoid of independent connectors
Patent #: 4078883
Issued on: 03/14/1978
Inventor: Arnold

Two part grate for stokers with reciprocating grate plates
Patent #: 4200047
Issued on: 04/29/1980
Inventor: Knorr

Grate with replaceable wear elements
Patent #: 4201545
Issued on: 05/06/1980
Inventor: Riechert

Plate for oscillating-type transporter
Patent #: 4600098
Issued on: 07/15/1986
Inventor: Orren

Grate plate
Patent #: 5174747
Issued on: 12/29/1992
Inventor: Massaro, Jr., et al.

Cooler grate
Patent #: 5322434
Issued on: 06/21/1994
Inventor: Milewski, et al.

Grate plate for thrust grating coolers for cooling hot material
Patent #: 5433157
Issued on: 07/18/1995
Inventor: Dittmann, et al.

Grate plate Patent #: 5497711
Issued on: 03/12/1996
Inventor: Bobbitt

Inventors

Assignee

Application

No. 587888 filed on 01/16/1996

US Classes:

110/281, Reciprocatory110/291, Inclined step grate432/77, WITH WORK COOLING STRUCTURE432/78Combustion feed air cools exiting work by contact

Examiners

Primary: Bennett, Henry
Assistant: Wilson, Gregory

Attorney, Agent or Firm

Foreign Patent References

  • 4205534A1 DE. 08/21/1993

International Class

F23H 011/08

Foreign Application Priority Data

1995-02-11 DE

Abstract

The service life of grate plates for pusher grate coolers for the cooling of hot cement clinker, and the like, is greatly increased at low cost by providing a replaceable wearing part (21) at the forward plate end pushing edge of the grate plate body (12). The wear life of the overlap region of the surface of the grate plate is enhanced by special treatment or coating.

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