Resumes
Resumes
Randall Ragan Phones & Addresses
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7000 Vista Olas, Carlsbad, CA 92009 (858) 395-1748
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Rancho Santa Fe, CA
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Coral Springs, FL
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Ranchita, CA
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San Diego, CA
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Winter Park, FL
Business Records
Name / Title
Company / Classification
Phones & Addresses
President
MARINE VAPOR POWER CORPORATION
800 Grand Ave #AG8120, Carlsbad, CA 92008
President
RANCHO SANTA FE RESEARCH ASSOCIATES, INC
800 Grand Ave Ag 8120, Carlsbad, CA 92008
800 Grand Ave, Carlsbad, CA 92008
800 Grand Ave, Carlsbad, CA 92008
Ragan Labs, LLC
Consulting · Management Consulting Services
Consulting · Management Consulting Services
5225 Ln Granada, Rancho Santa Fe, CA 92067
Publications
Us Patents
High-Density Composite Material Containing Tungsten Powder
View pageUS Patent:
7740682, Jun 22, 2010
Filed:
Jul 19, 2006
Appl. No.:
11/309243
Inventors:
Randall C. Ragan - Rancho Santa Fe CA, US
Randall M. Ragan - Rancho Santa Fe CA, US
Richard Vaughn Culbertson - Poway CA, US
Randall M. Ragan - Rancho Santa Fe CA, US
Richard Vaughn Culbertson - Poway CA, US
International Classification:
B22F 1/00
C09C 1/62
C04B 14/10
C08K 3/08
C09C 1/62
C04B 14/10
C08K 3/08
US Classification:
75248, 10628717, 10628718, 106486, 106487, 106811, 524780
Abstract:
An improved composite material, and method of manufacture thereof, comprising varying amounts tungsten powder, or metal/alloy powder of similar density, and clay or silicone is disclosed. The improved composite material may be useful as a replacement for lead and lead-based composites where similar densities are required but the use of lead is undesirable. The disclosed composite material permits a large variety of tungsten powder particle sizes to be utilized and results in improved ductility over known tungsten powder composites.
Single Turn Variable Resistance Device Having A Split Shaft Rotor
View pageUS Patent:
39640116, Jun 15, 1976
Filed:
Mar 18, 1974
Appl. No.:
5/452130
Inventors:
Randall C. Ragan - Rancho Santa Fe CA
Assignee:
North American Philips Corporation - New York NY
International Classification:
H01C 1032
US Classification:
338166
Abstract:
A single turn potentiometer is constructed as either an open frame or a housed unit. Both units incorporate a helical coil spring wiper mounted within a rotor. In the open-frame unit, the rotor includes a shaft which extends through a corresponding hole on a ceramic substrate. The ceramic substrate cooperates with the rotor and includes a deposited cermet resistance element and a circular collector ring. A stop arrangement is built into the rotor in the open-frame unit. The closed-frame unit includes a housing having a molded-in stop for cooperation with a similar stop on the rotor. In the open-frame unit, the shaft which protrudes through the hole in the substrate is of split configuration and is spread by an insert to hold the rotor to the substrate in riveting fashion. The closed-frame unit employs a peened-over portion of the housing which is used to constrain the assembly. Means and method for affixing the conductor leads to the substrate are disclosed.
Closed Frame Single Turn Potentiometer With Helical Coil Spring Wiper Adjustable Through Substrate
View pageUS Patent:
41211880, Oct 17, 1978
Filed:
Sep 16, 1976
Appl. No.:
5/723932
Inventors:
Randall C. Ragan - Rancho Santa Fe CA
Assignee:
North American Philips Corporation - New York NY
International Classification:
H01C 1034
US Classification:
338174
Abstract:
A closed frame single turn potentiometer incorporating a helical coil spring wiper mounted within a rotor. The rotor has a molded-in cavity for containing the wiper and a resilient backing element. The substrate has an aperture therein permitting adjustment of the rotor from either side of the housing.
Helical Coil Spring Wiper Potentiometer Contact Device
View pageUS Patent:
40952100, Jun 13, 1978
Filed:
Sep 16, 1976
Appl. No.:
5/723931
Inventors:
Randall C. Ragan - Rancho Santa Fe CA
Assignee:
North American Philips Corporation - New York NY
International Classification:
H01C 1040
US Classification:
338180
Abstract:
A contact device for trimmer potentiometer including a helical coil spring wiper embedded in a cavity in an insulative body so that movement of the helical coil spring wiper is prevented as the contact device is moved along the potentiometer substrate. The insulative body may alternatively be provided with thin walls surrounding the cavity containing the helical coil spring wiper to permit the contact device to absorb backlash, while still preventing any relative movement of the helical coil spring wiper.
Process For Producing Low Shrink Ceramic Composition
View pageUS Patent:
55189695, May 21, 1996
Filed:
Apr 12, 1995
Appl. No.:
8/420640
Inventors:
Randall C. Ragan - Rancho Santa fe CA
International Classification:
C03C 1400
US Classification:
501 32
Abstract:
This invention provides a hard, strong ceramic body and method of manufacture whereby the body, after being formed into the desired shape and size can then be fired into a monolithic structure without any shrinkage or distortion during the firing operation. The "green," unfired ceramic composition comprises one or more powdered refractories and one or more powdered glasses which have a melting point below the softening point of the selected refractory material. Preferred refractories are alumina and zirconia; preferred glasses are lead borosilicate and barium borosilicate. The composition may also contain a metal powder.
Process For Producing Low Shrink Ceramic Bodies
View pageUS Patent:
57699178, Jun 23, 1998
Filed:
Dec 9, 1996
Appl. No.:
8/762340
Inventors:
William C. Belko - Encinitas CA
Randall C. Ragan - Rancho Santa Fe CA
Randall C. Ragan - Rancho Santa Fe CA
International Classification:
C03B 1901
C03B 1909
D01F 900
D01F 614
C03B 1909
D01F 900
D01F 614
US Classification:
65 173
Abstract:
The disclosed invention is a ceramic composition and a process for forming thin tapes and bodies with minimal and controllable firing-induced shrinkage. The composition comprises a refractory component, a glass component and may also include a metal component. The glass component should have no more than about five percent of particles less than 10 microns. The glass component is not milled with the refractory component. They are briefly blended, e. g. , by high shear mixing, in a manner which will preserve the particle size and particle size distribution of the glass. The resultant mixture is cast into a sheet or tape, with minimal or no pressure, dried and fired.
Single Turn Potentiometer With Helical Coil Spring Wiper
View pageUS Patent:
41588312, Jun 19, 1979
Filed:
May 20, 1977
Appl. No.:
5/798990
Inventors:
Randall C. Ragan - Rancho Santa Fe CA
Assignee:
North American Philips Corporation - New York NY
International Classification:
H01C 1034
US Classification:
338174
Abstract:
A single turn potentiometer is constructed as either an open frame or a housed unit. Both units incorporate a helical coil spring wiper mounted within a rotor and supported by a hollow resilient pad. In the open-frame unit, the rotor includes a shaft which extends through a corresponding hole on a ceramic substrate. The ceramic substrate cooperates with the rotor and includes a deposited cermet resistance element and a circular collector ring. A stop arrangement is built into the rotor in the open-frame unit. The closed-frame unit includes a housing having a moulded-in stop for cooperation with a similar stop for cooperation with a similar stop on the rotor. In the open-frame unit, the shaft which protrudes through the hole in the substrate is of split configuration and is spread by an insert to hold the rotor to the substrate in riveting fashion. The closed-frame unit employs a peened-over portion of the housing which is used to constrain the assembly. Means and method for affixing the conductor leads to the substrate are disclosed.
Radiation Shield With Magnetic Properties
View pageUS Patent:
20150287486, Oct 8, 2015
Filed:
Apr 2, 2015
Appl. No.:
14/677556
Inventors:
- Poway CA, US
RANDALL M. RAGAN - Rancho Santa Fe CA, US
JOSEPH J. STUPAK - Portland OR, US
RANDALL M. RAGAN - Rancho Santa Fe CA, US
JOSEPH J. STUPAK - Portland OR, US
Assignee:
AMERICAN CERAMIC TECHNOLOGY, INC. - Poway CA
International Classification:
G21F 1/08
G21F 3/00
G21F 3/00
Abstract:
A radiation attenuation shield, method, and system are disclosed. The shield includes a polymer, a radiation attenuating material, and a magnetic material. The radiation attenuating material and the magnetic material may be dispersed within the polymer to form an attenuation layer. Further, a magnetic material layer may be positioned adjacent to the attenuation layer or encase the attenuation layer. The radiation attenuation shield may be made by combining the components to create a mixture and then inserting the mixture in a mold until a solidified shape is formed. Moreover, the radiation attenuation shield of the present invention may be mechanically secured to a structure to contain radiation. Further, the shield may be secured to a structure by using the magnetic properties of the shield.