Company Filing History:
2 out of 258 
1 out of 108 
1 out of 832,718 Years Active: 1976-1982
Title: The Innovations of Lloyd A. Tarr
Introduction
Lloyd A. Tarr is a notable inventor based in Elmhurst, IL (US). He has made significant contributions to the field of telecommunications, holding a total of 4 patents. His work has focused on enhancing the integrity and functionality of telephone systems.
Latest Patents
Among his latest patents is the "Apparatus for controlling and indicating the integrity of the connection." This system is designed to automatically detect the integrity of a telephone subscriber's line connection to a four-wire switching system via a hybrid network. Another significant patent is the "Ringing voltage transfer circuit," which prepares a conductive path between a ringing voltage generator and a telephone subscriber loop circuit prior to the application of ringing voltage. This circuit utilizes photo-coupled switching and monitoring circuits to coordinate the application of ringing voltage with the operation of a ring relay, completing the circuit path between the ringing voltage generator and the loop circuit.
Career Highlights
Lloyd A. Tarr has worked with GTE Automatic Electric Laboratories Incorporated, where he contributed to various innovative projects. His expertise in telecommunications has been instrumental in developing systems that improve communication reliability.
Collaborations
Some of his notable coworkers include John P. Taylor and John S. Young, who have also made significant contributions to the field.
Conclusion
Lloyd A. Tarr's innovations in telecommunications have had a lasting impact on the industry. His patents reflect a commitment to improving communication systems and ensuring their reliability.