Mark C Hash

US Patent:

8028626, Oct 4, 2011

Filed:

Jan 6, 2010

Appl. No.:

12/683156

Inventors:

Mark C. Hash - Chelsea MI, US
Trent Pearson - Saline MI, US

Assignee:

Ervin Industries, Inc. - Ann Arbor MI

International Classification:

F42B 12/74
B22F 3/12

US Classification:

102506, 102517, 102529, 86 54

Abstract:

In making frangible objects, including lead-free bullets and other projectiles, powdered metal primary and powdered ceramic secondary phases are mixed and densified at an elevated temperature such that the ceramic phase forms a brittle network. Any combination of metal and ceramic phases may be used to achieve desired chemical and physical properties. Any appropriate mixing, forming, and/or thermal processing methods and equipment may be used. Degrees of frangibility, strength, and toughness can be adjusted to suit a given application by precursor selection, degree of mixing, relative amounts of metal and ceramic phases, forming method, and thermal and mechanical processing parameters.

US Patent:

8468947, Jun 25, 2013

Filed:

Oct 4, 2011

Appl. No.:

13/252797

Inventors:

Mark C. Hash - Chelsea MI, US
Trent Pearson - Saline MI, US

Assignee:

Ervin Industries, Inc. - Ann Arbor MI

International Classification:

F42B 12/74
B22F 3/12

US Classification:

102506, 102517, 102529, 86 54

Abstract:

In making frangible objects, including lead-free bullets and other projectiles, powdered metal primary and powdered ceramic secondary phases are mixed and densified at an elevated temperature such that the ceramic phase forms a brittle network. Any combination of metal and ceramic phases may be used to achieve desired chemical and physical properties. Any appropriate mixing, forming, and/or thermal processing methods and equipment may be used. Degrees of frangibility, strength, and toughness can be adjusted to suit a given application by precursor selection, degree of mixing, relative amounts of metal and ceramic phases, forming method, and thermal and mechanical processing parameters.

US Patent:

20120279412, Nov 8, 2012

Filed:

Jan 6, 2011

Appl. No.:

13/519940

Inventors:

Mark C. Hash - Chelsea MI, US
Trent Pearson - Saline MI, US

Assignee:

Ervin Industries, Inc. - Ann Arbor MI

International Classification:

F42B 12/22
F42B 12/72
B22F 3/24
B22F 3/02
B22F 3/12

US Classification:

102506, 419 66, 419 10

Abstract:

In making frangible objects, including lead-free bullets and other projectiles, powdered metal primary and powdered ceramic secondary phases are mixed and densified at an elevated temperature such that the ceramic phase forms a brittle network. Different combinations of metal and ceramic phases may be used to achieve desired chemical and physical properties. Any appropriate mixing, forming, and/or thermal processing methods and equipment may be used. Degrees of frangibility, strength, and toughness can be adjusted to suit a given application by precursor selection, degree of mixing, relative amounts of metal and ceramic phases, forming method, and thermal and mechanical processing parameters.

US Patent:

51549875, Oct 13, 1992

Filed:

Jul 17, 1990

Appl. No.:

7/553461

Inventors:

Mark C. Hash - Joliet IL
Ira D. Bloom - Bolingbrook IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

H01M 810
H01M 618
C03C 1400

US Classification:

429 33

Abstract:

An electrolyte composite is manufactured by pressurizing a mixture of sodium ion conductive glass and an ionically conductive compound at between 12,000 and 24,000 pounds per square inch to produce a pellet. The resulting pellet is then sintered at relatively lower temperatures (800. degree. C. -1200. degree. C. ), for example 1000. degree. C. , than are typically required (1400. degree. C. ) when fabricating single constituent ceramic electrolytes. The resultant composite is 100 percent conductive at 250. degree. C. with conductivity values of 2. 5 to 4. times. 10. sup. -2 (ohm-cm). sup. -1. The matrix exhibits chemical stability against sodium for 100 hours at 250. degree. to 300. degree. C.

US Patent:

52139115, May 25, 1993

Filed:

Oct 17, 1991

Appl. No.:

7/777954

Inventors:

Ira D. Bloom - Bolingbrook IL
Mark C. Hash - Joliet IL
Michael Krumpelt - Naperville IL

Assignee:

The United States of America as represented by The United States
Department of Energy - Washington DC

International Classification:

H01M 800

US Classification:

429 33

Abstract:

A solid-oxide electrolyte operable at between 600. degree. C. and 800. degree. C. and a method of producing the solid-oxide electrolyte are provided. The solid-oxide electrolyte comprises a combination of a compound having weak metal-oxygen interactions with a compound having stronger metal-oxygen interactions whereby the resulting combination has both strong and weak metal-oxygen interaction properties.

US Patent:

61439444, Nov 7, 2000

Filed:

Jul 24, 1998

Appl. No.:

9/121974

Inventors:

Harry C. Hash - Joliet IL
Mark C. Hash - Shorewood IL

Assignee:

The United States of America as represented by the United States
Department of Energy - Washington DC

International Classification:

G21F 934

US Classification:

588 15

Abstract:

A process for the consolidation and containment of solid or semisolid hazardous waste, which process comprises closing an end of a circular hollow cylinder, filling the cylinder with the hazardous waste, and then cold working the cylinder to reduce its diameter while simultaneously compacting the waste. The open end of the cylinder can be sealed prior to or after the cold working process. The preferred method of cold working is to draw the sealed cylinder containing the hazardous waste through a plurality of dies to simultaneously reduce the diameter of the tube while compacting the waste. This process provides a quick continuous process for consolidating hazardous waste, including radioactive waste.

Address:

825 Mckinley Rd, Chelsea, MI 48118

VIN:

5GZCZ33Z47S826569

Make:

SATURN

Model:

VUE

Year:

2007