John David Duncan

US Patent:

7445019, Nov 4, 2008

Filed:

May 15, 2007

Appl. No.:

11/749117

Inventors:

Arthur J. Brenes - Castro Valley CA, US
Yoshi Takayama - Reno NV, US
John Duncan - Reno NV, US

Assignee:

High Vacuum Apparatus Mfg., Inc. - Reno NV

International Classification:

F16K 31/122

US Classification:

13731529, 251 62, 251187, 251193, 251329

Abstract:

A gate valve including a valve housing defining a valve chamber having an opening therethrough along a flow path, a gate support supported within the valve housing between a closed position in the flow path, an open position outside of the flow path, and a service position extending out of the valve housing, and a dual actuator assembly having a service piston assembly having a service piston reciprocable within the valve housing, and an inner piston assembly having an inner piston reciprocable within the service piston assembly. The gate support is configured to reciprocate with the inner piston between the closed and open positions, and with the service piston between the closed and the service positions. A method of using the gate valve is also disclosed.

US Patent:

7901083, Mar 8, 2011

Filed:

Jul 31, 2007

Appl. No.:

11/831307

Inventors:

Patrick R. Destain - Allen TX, US
Jennifer L. Grace - Lakeside Park KY, US
John E. Duncan - Amelia OH, US
Tomasz A. Pol - Cincinnati OH, US
Michael W. O'Keefe - Cincinnati OH, US
Alexander Glinski - Cincinnati OH, US
Stephen J. Willett - Saint Paul MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G02B 21/36
G02F 1/1335

US Classification:

353 39, 349 5

Abstract:

A projection subsystem includes a light engine that provides a collection lens, a collimator and at least one solid state light emitter. A projection lens assembly receives the image and provides a projection beam having a luminous flux level. The projection subsystem has a portability efficacy.

US Patent:

8070295, Dec 6, 2011

Filed:

Jan 13, 2011

Appl. No.:

13/006079

Inventors:

Patrick R. Destain - Allen TX, US
Jennifer L. Grace - Lakeside Park KY, US
John E. Duncan - Amelia OH, US
Tomasz A. Pol - Cincinnati OH, US
Michael W. O'Keefe - Cincinnati OH, US
Alexander Glinski - Cincinnati OH, US
Stephen J. Willett - Saint Paul MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G02B 21/36
G02F 1/1335

US Classification:

353 39, 349 5

Abstract:

A projection subsystem includes a light engine that provides a collection lens, a collimator and at least one solid state light emitter. A projection lens assembly receives the image and provides a projection beam having a luminous flux level. The projection subsystem has a portability efficacy.

US Patent:

8459800, Jun 11, 2013

Filed:

Nov 2, 2011

Appl. No.:

13/287872

Inventors:

Patrick R. Destain - Allen TX, US
Jennifer L. Grace - Lakeside Park KY, US
John E. Duncan - Amelia OH, US
Tomasz A. Pol - Cincinnati OH, US
Michael W. O'Keefe - Cincinnati OH, US
Alexander A. Glinski - Cincinnati OH, US
Stephen J. Willett - St. Paul MN, US

Assignee:

3M Innovative Properties Company - St. Paul MN

International Classification:

G02B 21/36
G02F 1/1335

US Classification:

353 39, 349 5

Abstract:

A projection subsystem includes a light engine that provides a collection lens, a collimator and at least one solid state light emitter. A projection lens assembly receives the image and provides a projection beam having a luminous flux level. The projection subsystem has a portability efficacy.

US Patent:

20080051135, Feb 28, 2008

Filed:

Jul 31, 2007

Appl. No.:

11/831220

Inventors:

Patrick Destain - Allen TX, US
John Duncan - Amelia OH, US
Michael O'Keefe - Cincinnati OH, US
Jennifer Grace - Lakeside Park KY, US
William Phillips - Cincinnati OH, US
Stephen Willett - Saint Paul MN, US

International Classification:

H04M 1/00

US Classification:

455556100

Abstract:

A combination camera/projection system includes an image forming device, a light source, a projection lens, a detector array such as a CCD, and a beam splitter such as a polarizing beam splitter (PBS) disposed to direct light from the light source to the image forming device, and from the image forming device to the projection lens, and from the projection lens to the detector array.

US Patent:

63321262, Dec 18, 2001

Filed:

Aug 1, 1996

Appl. No.:

8/690765

Inventors:

Roger L. Peirce - Los Altos CA
Bruce C. Rhoads - Foster City CA
John Duncan - Malverne NY
Scott J. Loftesness - Menlo Park CA
Kurt W. Johnson - Tempe AZ
Mary K. Dobbs - San Francisco CA
Dan Mayes - Hanover Park IL

Assignee:

First Data Corporation - Palo Alto CA

International Classification:

G06F 1760

US Classification:

705 14

Abstract:

A system and method for operating a computer based targeted payment system discount program. Consumer information from consumer payment system institutions is used to match qualified consumers to targeted merchant discount offers. Offers are automatically prioritized based on their expected value to consumers and consumers receive the highest priority offers for which they qualify. The default prioritization can be altered or overridden by the consumer's payment systems institution. Discounts are automatically applied during the processing of the qualifying purchase without the need for coupons or additional actions by either the merchant or consumer.

US Patent:

20190217189, Jul 18, 2019

Filed:

Jan 16, 2019

Appl. No.:

16/249485

Inventors:

- San Rafael CA, US
DOUGLAS GRIFFIN - Mill Valley CA, US
JOHN DUNCAN - San Anselmo CA, US
CHARLES BUECHE - San Francisco CA, US

International Classification:

A63F 13/25
G06F 3/01
G06T 7/73
A63F 13/285
A63F 13/80
A63F 13/30

Abstract:

A virtual reality (VR) system is provided that mixes real-world tactile stimulation with audiovisual stimulation provided through VR headgear. The VR system uses three sets of components. The first set comprises mobile objects that are tracked using motion tracking LEDs. The second set comprises stationary objects that are tracked using wires connected to an I/O controller to a game server. The third set comprises objects that are not tracked at all, but which are depicted with a thematic rendering in the VR world. A grid is set up that provides discrete locations for setting up both stationary and mobile components. A VR game server serves constructs of a VR world having thematically-embellished virtual objects that appear to be located in positions and orientations that match the positions and orientations of the components of the first, second, and third sets.

US Patent:

20190111333, Apr 18, 2019

Filed:

Jan 17, 2018

Appl. No.:

15/873523

Inventors:

- San Rafael CA, US
JOHN DUNCAN - San Anselmo CA, US
DOUGLAS GRIFFIN - Mill Valley CA, US
RICHARD SCHULZE - Sausalito CA, US

International Classification:

A63F 13/217
G06T 19/00
A63F 13/216
A63J 1/02
G06F 3/01
G02B 27/01

Abstract:

A virtual reality (VR) experience augmentation method includes: generating VR representations, each preprogrammed to simulate a virtual environment with virtually represented objects; associating stage kits with one or more of the representations, each kit having a modular stage and stage accessories, the modular stage marked to aid assembly; and building one of the kits, by: assembling the accessories to the stage according to the one of the kits by using coordinates identified by stage markings; and configuring a motion tracking system to track a VR participant's movements and movements of one of more of the stage accessories by communicating identity, location and/or orientation information to a VR simulation engine. Locations and orientations of the objects within the virtual environment correspond to locations and orientations of the stage accessories that are arranged according to the one of the kits. Each of the VR representations uses tracking information generated by the motion tracking system to present imagery of VR objects as the VR participant moves about corresponding stage accessories.