Justin L Cheney

US Patent:

8562759, Oct 22, 2013

Filed:

Sep 17, 2010

Appl. No.:

12/885276

Inventors:

Justin Lee Cheney - San Francisco CA, US
John Hamilton Madok - San Diego CA, US

Assignee:

Scoperta, Inc. - San Diego CA

International Classification:

C22C 38/22
C22C 38/32
C22C 38/44
C22C 38/54
B23K 35/24

US Classification:

148328, 148330, 148333, 148528, 148529, 148537, 420100, 420104, 420113, 420114, 420121, 420127, 22826241, 219 761, 21914623

Abstract:

Disclosed herein are iron-based alloys having a structure comprising fine-grained ferritic matrix and having a 60+ Rockwell C surface, wherein the ferritic matrix comprises

US Patent:

8562760, Oct 22, 2013

Filed:

Nov 3, 2010

Appl. No.:

12/939093

Inventors:

Justin Lee Cheney - San Francisco CA, US
John Hamilton Madok - San Diego CA, US

Assignee:

Scoperta, Inc. - San Diego CA

International Classification:

C22C 38/32
C22C 38/22
B23K 35/24

US Classification:

148328, 148333, 148528, 148529, 148537, 148330, 420101, 420113, 420114, 420121, 420122, 219 761, 21914623, 2282624

Abstract:

Disclosed herein are iron-based alloys having a microstructure comprising a fine-grained ferritic matrix and having a 60+ Rockwell C surface, wherein the ferritic matrix comprises

US Patent:

8640941, Feb 4, 2014

Filed:

Mar 23, 2012

Appl. No.:

13/428296

Inventors:

Justin Lee Cheney - San Francisco CA, US

Assignee:

Scoperta, Inc. - San Diego CA

International Classification:

C22C 19/05
B23K 31/02

US Classification:

228101, 420442, 420452

Abstract:

A class of nickel based alloys having a fine grain structure resistant to stress corrosion cracking, and methods of alloy design to produce further alloys within the class are presented. The alloys act as suitable welding materials in similar applications to that of Alloy 622. The fine-grained structure of these novel alloys may also be advantageous for other reasons as well such as wear, impact, abrasion, corrosion, etc. These alloys have similar phases to Alloy 622 in that they are composed primarily of austenitic nickel, however the phase morphology is a much finer grained structure opposed to the long dendritic grains common to Alloy 622 when it is subject to cooling rates from a liquid state inherent to the welding process.

US Patent:

8647449, Feb 11, 2014

Filed:

Mar 6, 2012

Appl. No.:

13/413583

Inventors:

Justin Lee Cheney - San Francisco CA, US
John Hamilton Madok - San Diego CA, US

Assignee:

Scoperta, Inc. - San Diego CA

International Classification:

C22C 38/12
C22C 38/14
C22C 38/02
C22C 38/32

US Classification:

148328, 148321, 148333, 148334, 148330, 21914632, 420106, 420110, 420111, 420114, 420121, 420122, 420126, 420127

Abstract:

Disclosed herein are iron-based alloys having a microstructure comprising a fine-grained ferritic matrix and having a 60+ Rockwell C surface, wherein the ferritic matrix comprises

US Patent:

20070253856, Nov 1, 2007

Filed:

Sep 27, 2005

Appl. No.:

11/628574

Inventors:

Kenneth Vecchio - San Diego CA, US
Justin Cheney - Oak Park CA, US

International Classification:

C22C 38/00
B22D 7/00

US Classification:

420012000, 164047000, 420010000, 420014000, 420008000

Abstract:

Design and fabrication processes and compositions for iron-based bulk metallic glass materials or amorphous steels. Examples of bulk metallic glasses based on the described compositions may contain approximately 59 to 70 atomic percent of iron, which is allowed with approximately 10 to 20 atomic percent of metalloid elements and approximately 10 to 25 atomic percent of refractory metals. The amorphous steels may exhibit X-ray diffraction patterns as shown in FIG. The compositions can be designed using theoretical calculations of the liquidus temperature to have substantial amounts of refractory metals, while still maintaining a depressed liquidus temperature. The alloying elements are molybdenum, tungsten, chromium, boron, and carbon. Some of the alloys are ferromagnetic at room temperature, while others are non-ferromagnetic. These amorphous steels have increased specific strengths and corrosion resistance compared to conventional high strength steels.

US Patent:

20110008569, Jan 13, 2011

Filed:

Jul 9, 2010

Appl. No.:

12/833853

Inventors:

John H. MADOK - San Diego CA, US
Justin CHENEY - San Francisco CA, US
Kenneth S. VECCHIO - San Diego CA, US

International Classification:

B32B 3/06
B32B 9/04

US Classification:

428 99, 4284111

Abstract:

A wear-resistant attachment for insertion in a wear-resistant assembly, the assembly comprising a base with at least one recess, the attachment comprising: a bottom part configured to be removably inserted into the recess; and a top part comprising a wear-resistant material, wherein the top part is wider than the bottom part in at least one dimension such that the top part covers a surface of the base beyond the at least one recess. A wear-resistant assembly, comprising: a surface; a base; and a plurality of wear-resistant attachments removably coupled to the base, each of the plurality of wear-resistant attachments comprising an inner portion and an outer portion, wherein the outer portion of each of the plurality of wear-resistant attachments is coupled to the outer portion of at least one other wear-resistant attachment so that a plurality of coupled wear-resistant attachments comprise a substantially continuous surface, the substantially continuous surface comprising at least a portion of the surface of the wear-resistant assembly. A wear-resistant insert comprising a plurality of layers, each layer chosen from the group consisting of a hardface material, a tough material, and a joining interface, wherein the plurality of layers comprises at least two layers of a hardface material.

US Patent:

20110048587, Mar 3, 2011

Filed:

Nov 10, 2008

Appl. No.:

12/741818

Inventors:

Kenneth S. Vecchio - San Diego CA, US
Justin Cheney - Oak Park CA, US
Hesham Khalifa - San Diego CA, US

International Classification:

C22C 45/10

US Classification:

148561, 148403

Abstract:

Design and fabrication processes and compositions for bulk metallic glass materials. Examples of bulk metallic glasses based on the described compositions may contain a high atomic percent of titanium or iron, which is alloyed with metalloid elements and refractory metals. The compositions can be designed using theoretical calculations of the liquidus temperature to have substantial amounts of refractory metals, while still maintaining a depressed liquidus temperature. The alloying elements are molybdenum, tungsten, chromium, boron, and carbon may be used. Some of the resulting alloys are ferromagnetic at room temperature, while others are non-ferromagnetic. These amorphous alloys have increased specific strengths and corrosion resistance compared to conventional high strength steels.

US Patent:

20110064963, Mar 17, 2011

Filed:

Sep 29, 2009

Appl. No.:

12/569713

Inventors:

Justin Lee Cheney - San Francisco CA, US
John Hamilton Madok - San Diego CA, US

International Classification:

B32B 15/01
B23K 1/20
B23K 31/02
B23K 35/02

US Classification:

428576, 228208, 228176

Abstract:

The present invention provides a method for coating an article comprising applying a thermal spray coating to the article; applying a brazing material to the article; and heating the brazing material to at least a brazing temperature of the brazing material to form a resultant coating on the article, wherein the resultant coating is characterized by at least partial metallurgical bonding or at least partial alloying between the thermal spray coating and the brazing material.