Erhard Q Klar

Author:

Erhard Klar

ISBN #:

0871700131

Author:

Erhard Klar

ISBN #:

0871701545

Author:

Erhard Klar

ISBN #:

0871708485

US Patent:

45201307, May 28, 1985

Filed:

May 8, 1984

Appl. No.:

6/608293

Inventors:

Don H. Hashiguchi - University Heights OH
Erhard Klar - Beachwood OH
Ronald J. Dietrich - Strongsville OH

Assignee:

SCM Corporation - New York NY

International Classification:

B01J 2314
B01J 2372

US Classification:

502345

Abstract:

An improvement in process for making cupreous catalyst composition, wherein a copper oxide-preponderant grind charge derived from the oxidation of elemental copper and/or an alloy thereof is subject to high energy milling with concomitant crystal lattice distortion until the average particle of the resulting grind is no larger than about 20 microns, comprises establishing a tin concentration between about 400 and about 3000 ppm in said composition prior to or after said high energy milling. The resulting catalyst is useful for producing organohalosilane from alkyl chloride and silicon.

US Patent:

47690712, Sep 6, 1988

Filed:

Aug 21, 1987

Appl. No.:

7/088078

Inventors:

Erhard Klar - Beachwood OH
Mark Svilar - University Heights OH

Assignee:

SCM Metal Products, Inc - Cleveland OH

International Classification:

B22F 300

US Classification:

75246

Abstract:

There is provided a process for infiltrating a compacted ferrous powder metal body with copper or a copper alloy which process is characterized by presintering the ferrous metal body at a temperature of from about 1875. degree. F. to a temperature below the melting point of the infiltrant, and then in the same furnace, raising the temperature above the melting point of the copper or copper alloy infiltrant for a period sufficient to infiltrate the powder metal body. This process is more economical than the prior double run infiltration processes and provides excellent impact strengths and tensile strengths.

US Patent:

48249840, Apr 25, 1989

Filed:

Aug 20, 1987

Appl. No.:

7/087607

Inventors:

Erhard Klar - Beachwood OH
Azza Elattar - Lakewood OH

Assignee:

SCM Metal Products, Inc. - Cleveland OH

International Classification:

C07F 716

US Classification:

556472

Abstract:

There is provided a method and a catalyst for the direct production of organohalosilanes from elemental silicon and an alkylhalide. The catalytic material is characterized by the presence therein of zinc, the source of zinc in said catalyst being selected from the group consisting of zinc carbonate, zinc formate, zinc acetate, zinc vinyl acetate, zinc propionate, zinc butyrate, zinc beta-chlorobutyrate and zinc gamma-chlorobutyrate. These sources of zinc overcome problems encountered with zinc metal and zinc halides, commonly used as sources of zinc.

US Patent:

45045976, Mar 12, 1985

Filed:

Feb 16, 1984

Appl. No.:

6/580595

Inventors:

Erhard Klar - Beachwood OH
Don H. Hashiguchi - University Heights OH
Ronald J. Dietrich - Strongsville OH

Assignee:

SCM Corporation - New York NY

International Classification:

B01J 2104
B01J 2306
B01J 2372
B01J 2374

US Classification:

502225

Abstract:

A grind charge of cupreous particulates containing a major proportion of cuprous and cupric oxides and a minor proportion of elemental copper, said charge having average particle size above 15 microns, is subjected to high energy comminution with concomitant crystal lattice distortion until the average particle size of said particulates is no larger than 15 microns. The resulting catalyst, of fairly high specific surface area, can be used for alkyl or aryl halosilane production.

US Patent:

49216651, May 1, 1990

Filed:

Mar 11, 1988

Appl. No.:

7/166879

Inventors:

Erhard Klar - Beachwood OH
Mark Svilar - Orange Village OH
David F. Berry - Westlake OH

Assignee:

SCM Metal Products, Inc. - Cleveland OH

International Classification:

C22F 100

US Classification:

419 23

Abstract:

The present invention relates to porous powder metal (P/M) parts having improved dynamic properties such as impact and fatigue strength. These properties are achieved by the use of finer metal powders.

US Patent:

49767780, Dec 11, 1990

Filed:

Jun 23, 1988

Appl. No.:

7/210579

Inventors:

David F. Berry - Westlake OH
Erhard Klar - Beachwood OH
Mark Svilar - Orange OH

Assignee:

SCM Metal Products, Inc. - Cleveland OH

International Classification:

B22F 100

US Classification:

75254

Abstract:

The present invention relates to an infiltrated ferrous powder metal part containing certain additives, yielding a part having improved dimensional control during infiltration and uniform and predictable distribution of dynamic properties within a given group of commonly manufactured parts.

US Patent:

47311185, Mar 15, 1988

Filed:

Nov 28, 1986

Appl. No.:

6/935854

Inventors:

Mark Svilar - University Hts. OH
Erhard Klar - Beachwood OH

Assignee:

SCM Metal Products, Inc.

International Classification:

B22F 100

US Classification:

75246

Abstract:

A copper or copper alloy infiltrated ferrous powder metal part, and method for making the same, characterized as having after infiltration an overall density of at least 7. 50 g/cm. sup. 3 and a diffusion depth of copper into the steel matrix of less than about 4 micrometers as determined by chemical etching or less than about 8 micrometers as determined by electron dispersive X-ray analysis (EDXA), wherein said ferrous metal is plain carbon steel having a combined carbon content in the range of about 0. 15% to about 1. 25%, or a low alloy steel.

US Patent:

46067680, Aug 19, 1986

Filed:

Jul 15, 1985

Appl. No.:

6/755282

Inventors:

Mark Svilar - University Heights OH
Stephen Glancy - Akron OH
Erhard Klar - Beachwood OH

Assignee:

SCM Corporation - New York NY

International Classification:

B22F 300

US Classification:

75246

Abstract:

A copper infiltrated ferrous powder metal part infiltrated with copper or a copper alloy characterized as having after infiltration a residual uninfiltrated porosity of less than about 7 volume percent and a maximum pore size of the residual uninfiltrated porosity of less than about 125 micrometers, said porosity and pore size values being taken from a worst field of view in a functionally critical area of said metal part.