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US 5,495,922 AGranted
Uniform composite friction units
AssigneeUniversal Design Research and Technology
InventorBenjamin V. Booher
Life of this patent
Estimating the term…
Abstract
A continuous process for the manufacture of friction units comprises the steps of impregnating a plurality of strands of reinforcing fibers with a phenolic resin having zero to ten percent copper and graphite powders, pulling the impregnated strands of reinforcing fibers through a composite forming die for forming a body having the peripheral configuration of the friction units, and selectively cutting the body into a plurality of the friction units.
Claims20
A composite friction unit comprising:
- a three dimensional body formed of a uniform array of predominately glass strands of reinforcing fibers in matrix of phenolic resin material, said reinforcing fibers distributed throughout said body in a predetermined uniform distribution and orientation forming a friction unit having a predetermined size and configuration and uniform distribution and alignment of fibers throughout.
A composite friction unit comprising the combination of:
- a body of phenolic resin material, said body having about three to about ten percent by weight of at least one powder selected from the group consisting of rubber, copper, graphite, ceramic, and cashew nut shell flower distributed uniformly therein;
- a uniform array of reinforcing fibers disposed in a uniform distribution and alignment throughout said body, said reinforcing fibers including predominately glass reinforcing fibers, including additional fibers taken from the group consisting essentially of rock wool, ceramic, carbon, and aramid, said reinforcing fibers disposed in a uniform distribution and alignment throughout said body, said body having a peripheral configuration of said friction unit said body thereby forming a friction unit of a predetermined size and configuration and having a uniform distribution and alignment of fibers throughout.
A composite friction unit comprising the combination of:
- a three dimensional body composed of about 55 to about 75 percent by weight of reinforcing fibers in a matrix of phenolic resin material, said matrix is about 25 to about 45% by weight of said body and contain from about 5 to 10% by weight of copper powder, about 5 to 10% by weight of graphite powder and about 3 to 5% cashew nut shell flower;
- said reinforcing fibers being a uniform array of predominately glass reinforcing fibers, including fibers taken from the group consisting essentially of rock wool, ceramic, carbon, and aramid, said reinforcing fibers disposed in a uniform distribution and alignment throughout said body, said body having a peripheral configuration of said friction unit said body thereby forming a friction unit of a predetermined size and configuration and having a uniform distribution and alignment of fibers throughout.
Dependencies are inferred from the claim text.