Company Filing History:
Years Active: 1994-1998
Title: Innovations of David K Spahr
Introduction
David K Spahr is an accomplished inventor based in Roscoe, Illinois. He holds a total of four patents, showcasing his expertise in the field of injection molding technology. His innovative contributions have significantly advanced the efficiency and performance of injection molding processes.
Latest Patents
One of his notable patents is the "Combination control for injection molding." This adaptive controller is designed to manage the velocity of a ram in an injection molding apparatus during the injection stage of the molding cycle. The controller utilizes two sets of parameters: the first set defines an open-loop control equation, while the second set defines a closed-loop control equation. The control of the ram is divided into discrete segments, with the open-loop control governing the initial portion and the closed-loop equation taking over in the latter portion. This dual approach allows for precise control of the ram at a target velocity, enhancing performance and efficiency in subsequent cycles.
Another significant patent is the "Adaptive controller for injection molding." This controller facilitates the transition from the injection stage to the packing stage in an injection molding apparatus. It manages the ram's velocity during the injection stage and controls the ram pressure during the packing stage. By monitoring the ratio of pressure to velocity, the controller can anticipate the transition, thereby preventing pressure spikes and ensuring a smooth operation.
Career Highlights
Throughout his career, David K Spahr has worked with reputable companies such as Barber Colman Company and The Foxboro Company. His experience in these organizations has contributed to his development as a leading inventor in the injection molding sector.
Collaborations
David has collaborated with notable individuals in his field, including Dennis C Tibbitts. These collaborations have likely enriched his work and led to further innovations in injection molding technology.
Conclusion
David K Spahr's contributions to the field of injection molding through his patents and career experiences highlight his role as a significant inventor. His innovative controllers have improved the efficiency and effectiveness of injection molding processes, marking him as a key figure in this industry.
Inventor’s Patent Attorneys refers to legal professionals with specialized expertise in representing inventors throughout the patent process. These attorneys assist inventors in navigating the complexities of patent law, including filing patent applications, conducting patent searches, and protecting intellectual property rights. They play a crucial role in helping inventors secure patents for their innovative creations.