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For the Inventor, By the Inventor

Forest Park, IL, United States of America

David R Armbruster

USPTO Granted Patents = 15

Average Co-Inventor Count = 1.7

ph-index = 8

Forward Citations = 591(Granted Patents)


Company Filing History:

goldMedal12 out of 40 
 
Acme Resin Corporation
 patents
silverMedal3 out of 226 
 
Borden, Inc.
 patents

Years Active: 1984-1994

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15 patents (USPTO):Explore Patents
1. 5354788 - Dialdehyde modified phenolic foundry sand core binder resins, processes (1994-10-11),
2. 5281644 - Ambient temperature hardening binder compositions (1994-01-25),
3. 5089540 - Processes and compositions to enhance the tensile strength of reclaimed (1992-02-18),
4. 5077323 - Method to improve flowability of alkaline phenolic resin coated sand (1991-12-31),
5. 5021539 - Alkaline benzylic ether phenolic resin binders (1991-06-04),
6. 4971132 - Alkaline phenolic resole resin binders (1990-11-20),
7. 4929648 - Alkaline phenolic resole resin binders (1990-05-29),
8. 4785884 - Consolidation of partially cured resin coated particulate material (1988-11-22),
9. 4722991 - Phenol-formaldehyde-furfuryl alcohol resins (1988-02-02),
10. 4713294 - Foundry shell core and mold composition (1987-12-15),
11. 4694905 - Precured coated particulate material (1987-09-22),
12. 4677187 - Furfuryl alcohol-aldehyde resins (1987-06-30),
13. 4495316 - Acid-curable fluoride-containing no-bake foundry resins (1985-01-22),
14. 4487868 - Foundry core compositions (1984-12-11),
15. 4439489 - Particles covered with a cured infusible thermoset film and process for (1984-03-27),

Title: Innovations and Contributions of David R Armbruster

Introduction

David R Armbruster is a notable inventor based in Forest Park, IL (US), recognized for his significant contributions to the field of foundry binder resins. With a total of 15 patents to his name, Armbruster has made substantial advancements in the development of materials that enhance the efficiency and effectiveness of foundry processes.

Latest Patents

Among his latest patents, Armbruster has developed a dialdehyde modified phenolic foundry sand core binder resin. This innovative resin is designed to improve the shakeout properties of foundry articles by reducing hot strength. The resin is created through a reaction involving a phenolic compound, a dialdehyde, and formaldehyde. Additionally, he has disclosed a process for preparing this resin, which involves first reacting the phenolic compound with the dialdehyde, followed by a reaction with formaldehyde. Another significant patent focuses on ambient temperature hardening binder compositions. This invention outlines methods and compositions that retard the hardening of phenolic resole resin when combined with a nitroalkane and a hardening agent, enhancing the usability of these materials in various applications.

Career Highlights

Armbruster has worked with prominent companies such as Acme Resin Corporation and Borden, Inc., where he has applied his expertise in resin technology. His work has contributed to the development of innovative solutions that address challenges in the foundry industry.

Collaborations

Throughout his career, Armbruster has collaborated with notable colleagues, including Calvin K Johnson and Merlyn C Pasion. These partnerships have fostered a collaborative environment that has led to the advancement of resin technologies.

Conclusion

David R Armbruster's contributions to the field of foundry binder resins exemplify his innovative spirit and dedication to improving industrial processes. His patents and collaborations reflect a commitment to advancing material science and enhancing the efficiency of foundry operations.

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