Robert Raymond Cargill

US Patent:

6963399, Nov 8, 2005

Filed:

Oct 18, 2002

Appl. No.:

10/274330

Inventors:

Robert L. Cargill - San Jose CA, US
Claudio I. Zanelli - Menlo Park CA, US

International Classification:

G01J003/00

US Classification:

356328, 356300

Abstract:

An apparatus for and method of calculating an integrated index of a transparent, translucent or opaque material for a desired wavelength range, the method comprising measuring a filtered value of the material as a function of wavelength within the desired wavelength range and calculating a protection index from the measured filtered value. The integrated index is used to quantify the ultraviolet, infra-red, erythemal or aphakic exposure properties of the material. In addition, the integrated index is used to quantify the photopic and/or scotopic response capabilities of the material. Further, the integrated index is used to quantify the differential or mean color indices of the material in comparison to the color spectrum or another material. Moreover, the integrated index is used to quantify the heat flux absorbed by the material.

US Patent:

8536483, Sep 17, 2013

Filed:

Mar 21, 2008

Appl. No.:

12/077876

Inventors:

James W. Thomas - Los Altos CA, US
Robert L. Cargill - San Jose CA, US
Mitchell R. Wool - Sunnyvale CA, US

Assignee:

General Lasertronics Corporation - San Jose CA

International Classification:

B23K 26/00

US Classification:

21912168, 2191216

Abstract:

A coating removal apparatus removes a coating from a surface. The apparatus has a movable scanning head and scanning optics. The scanning head is movable in one dimension, and the scanning optics adjust in two dimensions to compensate for movement of the scanning head to implement long range scanning with a uniform scanning pattern. Further, a surface roughness is determined by measuring specular and scattered reflections at various angles. For composite surfaces, the apparatus utilizes UV laser radiation and a controlled atmosphere to remove coating and alter the chemical characteristics at the surface.

US Patent:

20130220982, Aug 29, 2013

Filed:

Feb 28, 2013

Appl. No.:

13/781107

Inventors:

James W. Thomas - Los Altos CA, US
Mitchell R. Wool - Sunnyvale CA, US
Robert L. Cargill - Trinidad CA, US

International Classification:

B23K 26/36

US Classification:

21912169, 21912168

Abstract:

A laser-based method of removing a coating from a surface comprises directing a laser pulse to a first position on the surface, removing the coating from the first position by rapidly elevating a surface temperature of the first position using the laser pulse and thereby disassociating the coating from the surface and collecting the disassociated coating. In some embodiments, the coating comprises an environmentally harmful substance such as Hexavalent Chromium. In some embodiments, the coating comprises Diamond-Like Carbon (DLC), Vitrified Contaminant Material (CMAS). The disassociated coating is collected by a waste collector.

US Patent:

20130270234, Oct 17, 2013

Filed:

Jun 5, 2013

Appl. No.:

13/910826

Inventors:

Robert L. Cargill - San Jose CA, US
Mitchell R. Wool - Sunnyvale CA, US

International Classification:

B23K 26/00
G01B 11/30
B23K 26/08

US Classification:

21912166, 2191218, 356600

Abstract:

A coating removal apparatus removes a coating from a surface. The apparatus has a movable scanning head and scanning optics. The scanning head is movable in one dimension, and the scanning optics adjust in two dimensions to compensate for movement of the scanning head to implement long range scanning with a uniform scanning pattern. Further, a surface roughness is determined by measuring specular and scattered reflections at various angles. For composite surfaces, the apparatus utilizes UV laser radiation and a controlled atmosphere to remove coating and alter the chemical characteristics at the surface.

US Patent:

55769187, Nov 19, 1996

Filed:

Dec 21, 1993

Appl. No.:

8/171260

Inventors:

Ronny Bar-Gadda - Palo Alto CA
Robert L. Cargill - San Jose CA

Assignee:

Baradun R&D Ltd. - Los Gatos CA

International Classification:

G11B 582

US Classification:

360135

Abstract:

In a magnetic disk medium, a substrate is etched to have a designed, controlled topography. A magnetic recording medium and a protective layer are provided over the substrate. A method for controlling production of the surface characteristics of the magnetic disk medium is controlled to optimize surface characteristics for use of the magnetic disk medium in a magnetic disk apparatus that reads information stored on the magnetic disk medium.

US Patent:

55151698, May 7, 1996

Filed:

Oct 13, 1993

Appl. No.:

8/136212

Inventors:

Robert L. Cargill - San Jose CA
Erich Gombocz - Menlo Park CA
Claudio I. Zanelli - Sunnyvale CA
Basil Swaby - Santa Rosa CA

Assignee:

Labintelligence Inc. - Menlo Park CA
Optical Coating Laboratory, Inc. - Santa Rosa CA

International Classification:

G01N 2164
G02B 528

US Classification:

356417

Abstract:

A spectral wavelength discrimination system and method for using are provided which allows the wavelength of a beam of radiation to be accurately determined using compact inexpensive optics and electronics. The system is particularly useful for identifying the emission wavelength of a multi-component marker system which includes a plurality of components having different wavelength ranges. The system comprises a wavelength selective beamsplitter, termed a Linear Wavelength Filter, that directs predetermined fractions of the beam at each wavelength into each of two output beams. The intensities of these output beams are measured. The measurements and selected system parameters, including the beamsplitter spectral characteristics and the detector sensitivity characteristics are used in a special algorithm for performing Fourier based wavelength-dispersive analysis. The unique solution of the Fourier based analysis is the wavelength of the beam of radiation. The system employs various optical components and structures to achieve the desired spatial resolution and sensitivity.

US Patent:

20180161936, Jun 14, 2018

Filed:

Jan 29, 2018

Appl. No.:

15/882614

Inventors:

- San Jose CA, US
Mitchell R. Wool - Sunnyvale CA, US
Robert L. Cargill - Trinidad CA, US

International Classification:

B23K 26/36
B23K 26/00
B23K 101/34

Abstract:

A laser-based method of removing a coating from a surface comprises directing a laser pulse to a first position on the surface, removing the coating from the first position by rapidly elevating a surface temperature of the first position using the laser pulse and thereby disassociating the coating from the surface and collecting the disassociated coating. In some embodiments, the coating comprises an environmentally harmful substance such as Hexavalent Chromium. In some embodiments, the coating comprises Diamond-Like Carbon (DLC), Vitrified Contaminant Material (CMAS). The disassociated coating is collected by a waste collector.

US Patent:

20160256959, Sep 8, 2016

Filed:

May 20, 2016

Appl. No.:

15/160852

Inventors:

- San Jose CA, US
Robert L. Cargill - San Jose CA, US
Mitchell R. Wool - Sunnyvale CA, US

International Classification:

B23K 26/362
B23K 26/06
B23K 26/356
B23K 26/00
B23K 26/0622

Abstract:

A coating removal apparatus removes a coating from a surface. The apparatus has a movable scanning head and scanning optics. The scanning head is movable in one dimension, and the scanning optics adjust in two dimensions to compensate for movement of the scanning head to implement long range scanning with a uniform scanning pattern. Further, a surface roughness is determined by measuring specular and scattered reflections at various angles. For composite surfaces, the apparatus utilizes UV laser radiation and a controlled atmosphere to remove coating and alter the chemical characteristics at the surface.