John D Petersen

US Patent:

8066854, Nov 29, 2011

Filed:

Apr 19, 2006

Appl. No.:

11/406607

Inventors:

Daniel M. Storey - Longmont CO, US
Deidre Sewell - Fort Collins CO, US
Terrence S. McGrath - Longmont CO, US
John H. Petersen - Longmont CO, US

Assignee:

Metascape LLC - Maple Grove MN

International Classification:

C23C 14/32

US Classification:

20419238, 20429841

Abstract:

The invention is directed to efficient methods for depositing highly adherent anti-microbial materials onto a wide range of surfaces. A controlled cathodic arc process is described, which results in enhanced adhesion of silver oxide to polymers and other surfaces, such as surfaces of medical devices. Deposition of anti-microbial materials directly onto the substrates is possible in a cost-effective manner that maintains high anti-microbial activity over several weeks when the coated devices are employed in vivo.

US Patent:

20010036560, Nov 1, 2001

Filed:

Feb 26, 2001

Appl. No.:

09/793328

Inventors:

Richard Welty - Boulder CO, US
John Petersen - Boulder CO, US
Patrick Jonte - Danville IN, US
Carl Trendelman - Carmel IN, US

International Classification:

B32B015/04

US Classification:

428/623000, 428/627000, 428/632000, 428/633000, 428/660000, 428/667000

Abstract:

An article is coated with a multi-layer coating comprising a nickel layer, a chrome layer, a refractory metal layer, preferably zirconium layer, a sandwich layer comprised of a plurality of alternating layers of a refractory metal compound and a refractory metal compound layer, preferably zirconium nitride layer, and a refractory metal oxide layer or a layer comprised of the reaction products of refractory metal, oxygen and nitrogen. The coating provides the color of polished brass to the article and also provides abrasion protection, corrosion protection, and improved acid resistance.

US Patent:

20040134770, Jul 15, 2004

Filed:

Oct 30, 2003

Appl. No.:

10/476527

Inventors:

John Petersen - Longmont CO, US

International Classification:

C23C014/32

US Classification:

204/192380, 204/298410

Abstract:

A process and apparatus () for depositing thin films onto the surface of a substrate () using cathodic arc deposition. The process and apparatus () include a cathode () of target material, disposed within a vacuum chamber (), which is powered to generate an arc for vaporizing the target material into a plasma of particulate constituents. The plasma constituents are selected, controlled and directed toward the substrate by electromagnetic fields generated by at least a first anode, surrounding the cathode (), and a second anode positioned adjacent the first anode. Additional anode structures and variable charged screens can also be used to provide further control of the plasma constituents. Use of the process and apparatus () to manufacture fuel cells of the type employing catalytic layers, conductive layers, and a polymeric proton exchange membrane is also disclosed.

US Patent:

20050003019, Jan 6, 2005

Filed:

Dec 18, 2003

Appl. No.:

10/741015

Inventors:

John Petersen - Longmont CO, US

International Classification:

C23C014/32
A61K033/24
A61K033/38

US Classification:

424617000, 424618000, 204192100, 424649000, 424655000, 424630000, 424641000

Abstract:

A process for depositing anti-microbial materials into or onto the surface of a substrate using ionic plasma deposition. The process includes the steps of providing a cathode of target material having anti-microbial potential which is disposed within a partial vacuum, powering the cathode to generate a plasma discharge for ionizing the target material into a plasma of constituent particles. The plasma particles are reacted with ionized gas, and are selected, controlled and directed toward the substrate by electromagnetic fields generated by at least one first anode adjacent to the cathode and at least one second anode positioned adjacent the first anode. Additional anode structures and charged screens provide further control of the plasma constituents. The plasma constituents, comprising the anti-microbial materials, are deposited on the substrate as dispersed ordered structures which form an anti-microbial surface into and onto the substrate.

US Patent:

60337907, Mar 7, 2000

Filed:

Apr 30, 1997

Appl. No.:

8/846304

Inventors:

Richard P. Welty - Boulder CO
John H. Petersen - Boulder CO
Patrick Jonte - Danville IN
Carl W. Trendelman - Carmel IN

Assignee:

Masco Corporation - Taylor MI

International Classification:

B32B 1504

US Classification:

428623

Abstract:

An article is coated with a multi-layer coating comprising a nickel layer, a refractory metal layer, preferably zirconium layer, a sandwich layer comprised of a plurality of alternating layers of a refractory metal compound and a refractory metal, a refractory metal compound layer on the sandwich layer, and a refractory metal oxide layer or a layer comprised of the reaction products of refractory metal, oxygen and nitrogen. The coating provides the color of polished brass to the article and also provides abrasion protection, corrosion protection, and improved acid resistance.

US Patent:

59224789, Jul 13, 1999

Filed:

Apr 30, 1997

Appl. No.:

8/846987

Inventors:

Richard P. Welty - Boulder CO
John H. Petersen - Boulder CO
Patrick Jonte - Danville IN
Carl W. Trendelman - Carmel IN

Assignee:

Masco Corporation - Taylor MI

International Classification:

B21D 3900

US Classification:

428621

Abstract:

An article is coated with a multi-layer coating comprising a nickel layer, a chrome layer, a refractory metal layer, preferably zirconium layer, a sandwich layer comprised of a plurality of alternating layers of a refractory metal compound and a refractory metal compound layer, preferably zirconium nitride layer, and a refractory metal oxide layer or a layer comprised of the reaction products of refractory metal, oxygen and nitrogen. The coating provides the color of polished brass to the article and also provides abrasion protection, corrosion protection, and improved acid resistance.

US Patent:

41925491, Mar 11, 1980

Filed:

Aug 14, 1978

Appl. No.:

5/933153

Inventors:

John F. Petersen - Portland OR

International Classification:

A47C 3100
A47C 1300

US Classification:

297464

Abstract:

A tiltable support for a wheelchair includes a main base for supporting a wheelchair, an angular base section for supporting the wheelchair in a rearwardly tilted position, and a back rest for supporting the back of the wheelchair while in the tilting position. In one embodiment, the support may be moved manually between one position in which the main base rests upon an underlying horizontal support, for disposing a wheelchair patient in an upright sitting position, and a second position in which the angular base rests upon the horizontal underlying support for disposing the wheelchair patient in a rearwardly reclining position. In a second embodiment, power driven mechanism is integrated with the support for moving it between the upright and reclining positions of the wheelchair patient.

US Patent:

59485485, Sep 7, 1999

Filed:

Apr 30, 1997

Appl. No.:

8/846301

Inventors:

Richard P. Welty - Boulder CO
John H. Petersen - Boulder CO
Patrick Jonte - Danville IN
Carl W. Trendelman - Carmel IN

Assignee:

Masco Corporation - Taylor MI

International Classification:

B32B 1504

US Classification:

428623

Abstract:

An article is coated with a multi-layer coating comprising a copper layer, a nickel layer, a chrome layer, a refractory metal layer, preferably zirconium layer, a sandwich layer comprised of alternating layers of a refractory metal compound and a refractory metal, a refractory metal compound layer, preferably zirconium nitride layer, and a refractory metal oxide layer or a layer comprised of the reaction products of refractory metal, oxygen and nitrogen. The coating provides the color of polished brass to the article and also provides abrasion protection, corrosion protection, and improved acid resistance.