Location History:
- Greenfield, WI (US) (1994 - 1995)
- Franklin, WI (US) (1996 - 2004)
Company Filing History:
Years Active: 1994-2004
Title: Innovations of Patrick J Griesemer
Introduction
Patrick J Griesemer is an accomplished inventor based in Franklin, WI (US). He holds a total of 6 patents that showcase his expertise in motor control technologies. His innovative contributions have significantly impacted the field of motor starters and relay contactors.
Latest Patents
One of his latest patents is a motor overload coil control designed for use in motor starter and relay contactors. This control features an 8-bit, 8-pin microcontroller that, along with an I/O reduction circuit, can manage 13 I/O functions using only 5 I/O pins. The system prioritizes three remote signals, integrating three-phase current measurement from Hall effect current sensors positioned on each leg. It includes current integration to provide a single current input to the microcontroller. The full load amperage (FLA) adjustment allows the control to be used across a wide range of motors. The microcontroller utilizes the FLA adjustment and current signal to monitor the operating temperature of the motor in real-time. A status indicator with an LED output shows the system's status and indicates motor temperature when necessary. After the coil is initially engaged, the microcontroller generates a PWM signal to maintain the coil's engagement with reduced power. The system also features an internal 24VDC sensor to ensure proper voltage levels and adjust the PWM for any variances. Additionally, pushbutton test and reset switches, along with a solid-state remote reset, are included.
Career Highlights
Throughout his career, Patrick has worked with notable companies such as Spacesaver Corporation and Eaton Corporation. His experience in these organizations has contributed to his development as an inventor and innovator in the field of motor control systems.
Collaborations
Patrick has collaborated with talented individuals, including Christopher John Wieloch and Kurt Von Eckroth. These partnerships have likely enriched his work and led to further advancements in his inventions.
Conclusion
Patrick J Griesemer's contributions to motor control technology through his patents demonstrate his innovative spirit and technical expertise. His work continues to influence the industry and inspire future advancements in motor control systems.