Company Filing History:
4 out of 36 
2 out of 832,812 Years Active: 1978-1994
Title: Innovations of Ludwig K Holtermann
Introduction
Ludwig K Holtermann is a notable inventor based in Old Saybrook, CT (US). He holds a total of six patents, showcasing his contributions to the field of fluid dynamics and control systems. His innovative designs have significantly impacted various industries by providing efficient solutions for fluid metering and control.
Latest Patents
One of Holtermann's latest patents is a fluid metering pump designed for dispensing accurately measured amounts of fluid. This pump features a one-way check valve on both the upstream and downstream sides of a variable volume pump chamber. The flow passage allows fluid communication from the upstream check valve to the pump chamber, which is accessed through a centrally located opening surrounded by a valve seat. The pump chamber's wall consists of a flexible diaphragm attached to a solenoid actuator's plunger. This design ensures that, in the absence of solenoid excitation, the diaphragm prevents fluid flow by sealing against the valve seat. The materials used in the pump are chemically inert and non-corrosive, allowing for precise dispensing of fluids in increments as small as 10 microliters.
Another significant patent is a check valve that permits flow in one direction only, suitable for controlling corrosive or chemically active fluids. This valve comprises a body made from an inert substance, defining inlet and outlet flow passages with a central chamber. An elastomeric disc traverses the central chamber, and the sealing engagement of the disc with the valve seat prevents flow. When the pressure differential across the disc exceeds its resilience, the disc deforms, allowing flow through the valve. The design includes support stops to prevent the disc from being forced into the inlet flow passage under high back pressure.
Career Highlights
Throughout his career, Holtermann has worked with The Lee Company, where he has contributed to the development of innovative fluid control technologies. His expertise in fluid dynamics has made him a valuable asset in the engineering community.
Collaborations
Holtermann has collaborated with notable individuals such as Leighton Lee, II and Jodie D Haupt, further enhancing his contributions to the field.
Conclusion
Ludwig K Holtermann's innovative patents and career achievements reflect his significant impact on fluid control technologies. His work continues to influence various industries, demonstrating the importance of innovation in engineering.