Polymer based backing plates for railway brake shoes and disc pads
AssigneeJames Ray & Associates
InventorRAJ VELAYUTHA
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Abstract
A lightweight backing plate for use with at least one of a railway brake shoe and a disc brake pad. Such lightweight backing plate being formed from a predetermined polymeric material selected from a group consisting of unsaturated polyester, polyphenylene sulfide, glass epoxy, phenolic polymers and various combinations thereof.
Claims22
A lightweight backing plate for use with at least one of a railway brake shoe and a disc brake pad, said lightweight backing plate being formed from a predetermined polymeric material selected from a group consisting of unsaturated polyester, polyphenylene sulfide, glass epoxy, phenolic polymers and various combinations thereof.
A composition brake shoe for use with at least one of railway vehicle brakes and automotive brakes, said brake shoe comprising:
- (a) a lightweight backing plate member, said backing plate member being formed from a predetermined polymeric material selected from a group consisting of unsaturated polyester, polyphenylene sulfide, glass epoxy, phenolic polymers and various combinations thereof;
- and
- (b) a preselected friction type composition material having a predetermined shape, said predetermined friction type composition material being bonded to said lightweight backing plate member.
A method of manufacturing an improved brake block for use with at least one of railway brake shoes and disc brake pads, said method comprising the steps of:
- (a) selecting a composition friction material;
- (b) molding said composition friction material selected in step (a), at a predetermined temperature and a predetermined pressure, to form a predetermined shape for use as at least one of a brake shoe and a brake pad;
- (c) selecting a polymeric material from a group consisting of unsaturated polyester, polyphenylene sulfide, glass epoxy, phenolic polymers and various combinations thereof;
- (d) forming a backing plate from said polymeric material selected in step (c) to a predetermined configuration;
- and
- (e) bonding said composition friction material molded to said predetermined shape in step (b) to said backing plate formed in step (d).
Dependencies are inferred from the claim text.