The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jun. 12, 2001

Filed:

Apr. 02, 1999
Applicant:
Inventor:

Keith F. Barnhardt, Bloomington, IN (US);

Assignee:

Midwest Brake Bond Company, Warren, WI (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B29C 3/500 ; B29C 4/318 ; B29C 5/304 ; B29C 6/544 ; B29C 6/554 ;
U.S. Cl.
CPC ...
B29C 3/500 ; B29C 4/318 ; B29C 5/304 ; B29C 6/544 ; B29C 6/554 ;
Abstract

Methods for forming a lined brake shoe having a curved brake lining attached to a table of the lined brake shoe. The curved brake lining is manufactured by molding a flat sheet of brake lining material in a partially polymerized state. This flat sheet is allowed to cool prior to be positioned within a press having warmed dies. The warm dies of the press form the curved brake lining while holding the curved brake lining in its desired shape. The warm dies restart the polymerization process. When further polymerization has been completed the curved lining is removed from the press. One embodiment places the table of the lined brake shoe in the press. Then, by adding a bonding material, the completed lined brake shoe can be manufactured while the polymerization process continues in the press.


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