US Pat. No. 9,186,723

METHOD OF PRODUCING METAL MATRIX COMPOSITE (MMC) WITH UNIFORM SURFACE LAYERS

CPS technologies Corp, N...

17. A method of making a Metal Matrix Composite with uniform surface layers, comprising the steps of:
placing at least one first ceramic fiber paper layer(s) on the base of a mold;
placing at least one preform layer(s) over said at least one first ceramic fiber paper layer(s);
placing at least one second ceramic fiber paper layer(s) on the top of said at least one preform layer(s);
wherein said at least one first ceramic fiber paper layer(s) and said at least one second ceramic fiber paper layer(s) are
each about 5 to about 15 thousandths of an inch in thickness;

compressing said at least one first ceramic fiber paper layer(s) and said at least one second ceramic fiber paper layer(s)
against said at least one preform layer(s) within said mold, wherein said thickness of said at least one first ceramic fiber
paper layer(s) and said at least one second ceramic fiber paper layer(s) are compressed between from about 10% to about 90%
of said thicknesses; and

centering said at least one preform layer(s) within said mold cavity, said centering step further including the step of said
compressed at least one first ceramic fiber paper layer(s) and said compressed at least one second ceramic fiber paper layer(s)
exerting an equal and opposite force on said at least one preform layer(s) within said mold whereby said at least one preform
layer(s) are centered within said mold cavity, wherein said thickness of said at least one first ceramic fiber paper layer(s)
and said at least one second ceramic fiber paper layer(s) are equal following said centering step.

US Pat. No. 9,718,197

COMPOSITE KNIFE

CPS Technologies Corp, N...

13. A composite knife, comprising:
a middle layer of fibrous preform, a portion of said middle layer comprising a ceramic insert placed longitudinally at the
periphery of said middle layer and being substantially coplanar with said fibrous preform, said ceramic insert including a
top surface and a bottom surface, and an exposed cutting blade portion;

a carrier structure to support said exposed cutting blade portion, said carrier structure comprising at least one top layer
and at least one bottom layer of fibrous preform, said middle layer disposed between said at least one top layer and said
at least one bottom layer and in contact thereto;

a metallic material, said metallic material infiltrated within said middle layer said metallic material bonding said middle
layer within said carrier structure, said metallic material bonding said top and bottom surfaces of said ceramic insert to
said carrier structure, said metallic material extending outward to encapsulate said composite knife and

wherein said composite knife has a density of <4.7 gr/cc; and
wherein said middle layer of fibrous preform comprises discontinuous ceramic fibers having between 3 and 30 percent fiber
content; and

wherein said top and bottom layers of said fibrous preform each comprises continuous ceramic fibers having between 20 percent
and 70 percent fiber content.

US Pat. No. 10,462,940

THERMAL MANAGEMENT DEVICE FOR HEAT GENERATING POWER ELECTRONICS INCORPORATING HIGH THERMAL CONDUCTIVITY PYROLYTIC GRAPHITE AND COOLING TUBES

CPS Technologies, Norton...

1. A system for cooling at least one high power, heat generating device, comprising:a metal matrix composite having a coefficient of thermal expansion substantially equal to that of said at least one high power, heat generating device, said metal matrix composite having an interior volume, a top external surface, and a bottom external surface;
a cooling channel positioned within said interior volume of said metal matrix composite, the cooling channel having an inlet and outlet and connected to a liquid source, said coolant channel confining a flow of a liquid within said metal matrix composite;
at least one Pyrolytic Graphite insert positioned within said interior volume of said metal matrix composite, said at least one Pyrolytic Graphite insert having a surface area bound by a plurality of peripheral edges;
at least one of said plurality of peripheral edges of said at least one Pyrolytic Graphite insert laterally positioned in close proximity to said cooling channel; and
at least one of said at least one high power, heat generating device positioned on said top external surface of said metal matrix composite in a substantially parallel relationship with said surface area of said at least one Pyrolytic Graphite insert, wherein said at least one high power, heat generating device positioned on said top external surface of said metal matrix composite further includes a substrate positioned between said at least one of said at least one high power, heat generating device and said at least one Pyrolytic Graphite insert, wherein said substrate is positioned within said interior volume of said metal matrix composite, said substrate having a top surface coplanar to said top external surface of said metal matrix composite.