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For the Inventor, By the Inventor

Hastings, MN, United States of America

David L Ingalsbe

USPTO Granted Patents = 16

Average Co-Inventor Count = 1.5

ph-index = 9

Forward Citations = 295(Granted Patents)


Location History:

  • Norfolk, NE (US) (1987)
  • Northfield, MN (US) (1988)
  • Hastings, MN (US) (1989 - 1995)
  • Paynesville, MN (US) (1998 - 2004)

Company Filing History:

goldMedal16 out of 28 
 
Independent Technologies, Inc.
 patents

Years Active: 1987-2004

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16 patents (USPTO):Explore Patents
1. 6803769 - Cable continuity test system (2004-10-12),
2. 5907606 - Telephone-line powered coin telephone chassis (1999-05-25),
3. 5802172 - Electronic lock for coin telephones (1998-09-01),
4. 5393235 - Telecommunications test adapter (1995-02-28),
5. 5332397 - Test cord apparatus (1994-07-26),
6. D341815 - Telecommunications test connector (1993-11-30),
7. 5228072 - Multiwire-pair telecommunications test system (1993-07-13),
8. D335094 - Telecommunications cable tester (1993-04-27),
9. D326443 - Adapter for telecommunications terminals (1992-05-26),
10. D318431 - Telephone loop tester (1991-07-23),
11. 4968260 - Bix block adapter (1990-11-06),
12. 4925393 - 66 Block adapter (1990-05-15),
13. 4912755 - Line current test device (1990-03-27),
14. 4878848 - 110 Block adapter (1989-11-07),
15. 4792016 - Ladder securing device (1988-12-20),

Title: The Innovative Contributions of David L. Ingalsbe

Introduction

David L. Ingalsbe is a notable inventor based in Hastings, MN (US), recognized for his significant contributions to technology through his 16 patents. His work primarily focuses on systems that enhance communication and testing processes, showcasing his innovative spirit and technical expertise.

Latest Patents

Among his latest inventions is the Cable Continuity Test System. This system comprises a terminator unit connected to one side of a cable and a test set unit connected to the other side. The test set unit features a display and a microprocessor designed for conducting standard continuity tests. It also stores records for each site tested, complete with time and date stamps. The terminator unit is programmable, allowing for a unique terminator ID to be set between the numbers of 00 and 99. Another significant invention is the Telephone-Line Powered Coin Telephone Chassis. This chassis operates on a minimal current of 23 milliamperes of off-hook loop current and is designed to shut down when on-hook. It includes capacitors that power a microprocessor briefly during on-hook coin control after a call. The chassis is compatible with the WESROC coin telephone monitoring system and features built-in circuitry for direct communication with remote units, as well as various protective and diagnostic functionalities.

Career Highlights

David L. Ingalsbe has made a remarkable impact in the field of technology through his role at Independent Technologies, Inc. His innovative designs and patents have contributed to advancements in communication systems and testing methodologies. His work reflects a commitment to improving the efficiency and reliability of technology in everyday applications.

Collaborations

David has collaborated with notable coworkers, including Daryl E. Ingalsbe and Dennis C. Blood. Their combined efforts have fostered an environment of innovation and creativity, leading to the development of cutting-edge technologies.

Conclusion

David L. Ingalsbe's contributions to technology through his patents and innovative designs have significantly impacted the field. His work continues to inspire future advancements in communication and testing systems.

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