Company Filing History:
Years Active: 1978
Title: The Innovations of Thomas T Butterfield
Introduction
Thomas T Butterfield is an accomplished inventor based in Chester, NH (US). He is known for his innovative contributions to the field of printing technology. His work has significantly impacted the way printers operate, particularly in the realm of precision and efficiency.
Latest Patents
Butterfield holds a patent for a device titled "Registration means for printers and the like." This invention features an opaque flag mounted on a printer carriage assembly that interrupts the light emitted by an LED from reaching a phototransistor when at the left-hand margin of a paper document. As the carriage begins to move, it reaches a constant print velocity, allowing the opaque flag to move away from the LED and phototransistor. This action activates the phototransistor, triggering a gated oscillator that generates pulses of uniform size and shape, ideally with a 50% duty cycle. The pulses from the gated oscillator create strobe and delay strobe pulses of shorter duration, which energize wire actuating solenoids to form full-step and half-step dots. These dots create characters within a 5 x 7 dot matrix, with both half-step and full-step dots forming characters within a 9 x 7 dot matrix. Upon completion of printing, a PRIME signal resets and stops the gated oscillator, allowing the carriage to return to the left-hand margin while moving the flag to decouple the drive from the carriage assembly.
Career Highlights
Butterfield has made significant strides in his career, particularly through his work at Centronics Data Computer Corporation. His innovative approach to printer technology has led to advancements that enhance the functionality and reliability of printing devices.
Collaborations
Butterfield has collaborated with notable individuals in the field, including Prentice I Robinson. Their combined expertise has contributed to the development of cutting-edge printing solutions.
Conclusion
Thomas T Butterfield's contributions to printing technology exemplify the spirit of innovation. His patent and work at Centronics Data Computer Corporation have paved the way for advancements in the industry. His legacy continues to influence the evolution of printing technology.