Company Filing History:
Years Active: 1976-1978
Title: The Innovative Mind of Howard G. Murphy
Introduction
Howard G. Murphy, an accomplished inventor based in Greendale, Wisconsin, has made significant contributions to the field of motor control technology. With a portfolio of 3 patents, Murphy's innovations have advanced the safety and efficiency of lift truck operations.
Latest Patents
One of Murphy's notable patents is titled "Lift truck control providing time delay in operation of directional." This innovation is a chopper motor-controller designed to regulate a lift truck's traction motor. It features fault detection means that prevent potential loss of control and includes a time delay mechanism that safeguards against premature operation of the directional contactor. Murphy's work ensures that faults are detected and addressed before the controller can be disabled.
Another impactful patent is "Chopper motor controller having pulse-by-pulse sensing of plugging." This patent introduces a pulse width modulation chopper controller for a D.C. traction motor. It incorporates plug sensing means that monitor the motor armature voltage on a pulse-by-pulse basis, intelligently limiting the 'on-time' of the power switch to prevent adverse current flow.
Career Highlights
Howard G. Murphy has built his career at Allis-Chalmers Corporation, a company known for its engineering excellence and innovation. His role has allowed him to contribute to various projects and advancements in lift truck technology, strengthening the company’s reputation in the industry.
Collaborations
During his tenure, Murphy has collaborated with talented coworkers such as Harvey E. Schmidt and Thomas P. Gilmore. These partnerships have fostered a creative environment where innovative ideas can flourish and led to the successful development of several key patents that enhance the functionality and safety of lift trucks.
Conclusion
Howard G. Murphy exemplifies a dedicated and inventive spirit in the field of engineering. His patents not only reflect his technical expertise but also his commitment to improving operational safety and efficiency within the industry. As innovations continue to evolve, Murphy's contributions will undeniably have a lasting impact on lift truck technology and beyond.