John L Haydu

Title: John L Haydu: Innovator in Electric Motor Technology

Introduction

John L Haydu is a notable inventor based in Towson, MD (US), recognized for his contributions to electric motor technology. With a total of 3 patents, he has made significant advancements in the field, particularly in motor protection and starter systems.

Latest Patents

One of Haydu's latest patents is the "Protector means for electric motor." This invention involves a three-phase motor designed with each of the three phase windings split in half. This allows the motor to be selectively connected for energization from either a relatively high or low source. The motor is equipped with protectors in the form of a three-pole automatic resetting overload relay and two thermostatic switches. The heaters for the individual poles of the overload relay are connected in series with a half section of the individual phase windings, eliminating the need for changes when switching between high or low voltage. The thermostatic switches are embedded in two of the other three winding sections, ensuring electrical insulation from the motor winding. The control contact means of the overload relay and the thermostatic switches are connected in series with the energizing coil of the electromagnet for the contact through which the motor connects to its energizing source.

Another significant patent is the "Fused unitized combination starter." This multipole unitized motor starter features a common base that houses a disconnect switch, an electromagnetic contactor, and a fuse unit connected in electrical series between the switch and contactor. The fuse unit is a plug-in device that is easily removable for service access, and when operatively mounted, it allows for direct viewing of the switch contacts.

Career Highlights

Throughout his career, John L Haydu has worked with prominent companies such as Gould Inc. and I-T-E Imperial Corporation. His experience in these organizations has contributed to his expertise in electric motor technology and innovation.

Collaborations

Haydu has collaborated with notable individuals in the field, including Frank W Kussy and Michel M Fenneteau. These partnerships have likely fostered an environment of creativity and innovation, leading to the development of his patents.

Conclusion

John L Haydu's contributions to electric motor technology through his patents demonstrate his innovative spirit and technical expertise. His work continues to influence the industry and showcases the importance of advancements in motor protection and starter systems