David Russ Irvin

US Patent:

8183390, May 22, 2012

Filed:

Aug 18, 2010

Appl. No.:

12/858993

Inventors:

David J. Irvin - San Marcos TX, US
David L. Witker - Bay City MI, US
John D. Stenger-Smith - Ridgecrest CA, US
Jennifer A. Irvin - San Marcos TX, US

Assignee:

The United States of America as represented by the Secretary of the Navy - Washington DC

International Classification:

C07D 409/06

US Classification:

549 59

Abstract:

The invention demonstrates the synthesis of a new pyrazole-containing monomer by means of an easily implemented two-step process. This monomer can be electropolymerized to yield a stable n-doping polymer that may easily be electrochemically characterized. It is demonstrated that the electrochemical behavior of the polymer films produced is dependent upon the conditions applied during electrodeposition. Films deposited by cycling only at relatively positive potentials (0 to 2000 mV) show less intense n-doping responses than those films obtained by scanning the applied potential throughout a wider range (−2000 mV to 2000 mV).

US Patent:

20120168055, Jul 5, 2012

Filed:

Nov 2, 2011

Appl. No.:

13/287791

Inventors:

ALAN V. BRAY - SPICEWOOD TX, US
DENISE DEPPE - AUSTIN TX, US
LESLIE SCHMIDT - AUSTIN TX, US
DAVID J. IRVIN - AUSTIN TX, US

Assignee:

SYSTEMS AND MATERIALS RESEARCH CORPORATION - AUSTIN TX

International Classification:

F16B 39/02
C08G 75/04
B05C 5/02
B32B 37/12
B05D 3/06
B05C 11/00

US Classification:

156 64, 427553, 118620, 118708, 118 52, 156 92, 528374, 528 30, 411 822

Abstract:

An apparatus for making and using a fastener suitable for use in airplane manufacture or repair that is coated with a pre-mixed moisture cure sealant. The sealant layer is coated with a frangible moisture barrier that will break apart when the fastener is installed, thus exposing the sealant to a moisture source. Once exposed to moisture, the sealant will begin to cure. Preferred embodiments also provide a premature cure indicator that provides a visual indication that the outer moisture resistant layer has been damaged.

US Patent:

20210115214, Apr 22, 2021

Filed:

Apr 25, 2019

Appl. No.:

17/048795

Inventors:

- Spencer MA, US
David J. Irvin - San Marcos TX, US
Nicole Lambdin - San Marcos TX, US
Garrett D. Poe - Spencer MA, US

Assignee:

Blueshift Materials, Inc. - Spencer MA

International Classification:

C08J 9/28
B01J 13/00

Abstract:

Disclosed is a method for producing an organic polymer aerogel and corresponding aerogels and articles of manufacture comprising such aerogels. The method can include polymerizing an organic polymerizable material in the presence of an organic solvent having a high vapor pressure and/or a low boiling point to obtain an organic polymer gel comprising an organic polymer matrix and the organic solvent, and subcritical or ambient drying the organic polymer gel under conditions suitable to remove the step (a) organic solvent and form an organic polymer aerogel.

US Patent:

20200199323, Jun 25, 2020

Filed:

Apr 26, 2018

Appl. No.:

16/609132

Inventors:

- Spencer MA, US
Alan SAKAGUCHI - San Marcos TX, US
Michael MERWIN - San Marcos TX, US
Kenneth KOLDAN - San Marcos TX, US
David J. IRVIN - San Marcos TX, US

International Classification:

C08J 9/28
C08J 5/18
C08G 73/10
D06N 3/00

Abstract:

A macroporous-structured polymeric aerogel, and methods for making and using the same, having a polymeric matrix that includes macropores is disclosed.

US Patent:

20180305513, Oct 25, 2018

Filed:

Apr 26, 2018

Appl. No.:

15/963839

Inventors:

- San Marcos TX, US
Garrett D. Poe - San Marcos TX, US
David J. Irvin - San Marcos TX, US
Alysa M. Joaquin - San Marcos TX, US
Janae D. Manning - San Marco TX, US

International Classification:

C08J 9/28
B01J 13/00
C08G 73/10

Abstract:

An aerogel comprising an open-cell structured polymer matrix that includes a polyamic amide polymer is described.

US Patent:

20180305514, Oct 25, 2018

Filed:

Apr 26, 2018

Appl. No.:

15/963880

Inventors:

- San Marcos TX, US
Garrett D. POE - San Marcos TX, US
David J. IRVIN - San Marcos TX, US
Alysa M. JOAQUIN - San Marcos TX, US
Janae D. MANNING - San Marco TX, US

International Classification:

C08J 9/28
C08G 73/10
B01J 13/00

Abstract:

A method of making an aerogel is described. The method can include obtaining a solution comprising polyamic acid and an imidazole, adding a dehydrating agent to the solution in an amount where the molar ratio of the imidazole to the dehydrating agent is 0.17:1 to 2.8:1 and reacting the solution at room temperature to 100 C. to produce a polymer matrix gel comprising a polyamic amide, and drying the polymer matrix gel to form an aerogel comprising an open-cell structured polymer matrix that includes 5 wt. % to 50 wt. % of the polyamic amide based on the total weight of the polymer aerogel.

US Patent:

20170355829, Dec 14, 2017

Filed:

Jun 7, 2017

Appl. No.:

15/616458

Inventors:

- San Marcos TX, US
Garrett D. POE - Austin TX, US
David J. IRVIN - San Marcos TX, US
Alysa M. JOAQUIN - Austin TX, US
Janae D. MANNING - San Antonio TX, US

International Classification:

C08J 9/28
C08G 73/10

Abstract:

Aerogel compositions that include polyamic amides, methods for preparing the aerogel compositions, and articles of manufacture that include or manufactured from the aerogel compositions are described.

US Patent:

20160106142, Apr 21, 2016

Filed:

May 22, 2014

Appl. No.:

14/893520

Inventors:

- Austin TX, US
David James IRVIN - Austin TX, US
Malcolm David PROUTY - Austin TX, US
Keris Allrich WARD - Austin TX, US
Jesse Baskin MCDANIEL - Austin TX, US

Assignee:

Systems and Materials Research Corporation - Austin TX

International Classification:

A23P 1/08

Abstract:

A 3D food printing system, which can deposit macro- and micro-nutrients in an additive process to prepare a wide variety of different types of food. According to embodiments described herein, a 3D printed food system can be used to rapidly and efficiently prepare meals on demand, rather than in advance, while also allowing nutritional content, flavor, and taste to be customized for individual crew members. In some embodiments, the food can also be prepared in a largely or even completely automated fashion.