This inventor holds 5 USPTO granted patents. Top assignees: Energy and Environmental Research Center Foundation (Eerc Foundation), Other. Active years: 1989-2005.
Company Filing History:
1 out of 1 
4 out of 834,411 Years Active: 1989-2005
Title: Innovations of John R Rindt
Introduction
John R Rindt is a notable inventor based in Grand Forks, ND (US). He holds a total of 5 patents that showcase his contributions to the fields of environmental research and technology. His work primarily focuses on innovative solutions for measuring oxygen uptake and treating wastewater.
Latest Patents
One of Rindt's latest patents is an on-line respirometer and method for using the same. This invention is designed to determine the oxygen uptake of respiring samples. It features an overflow drain in the side portion of an enclosed reaction vessel, which defines an operational volume of slurry sample and headspace gases. The slurry sample is agitated using a mixer and/or a pump that recirculates the headspace gases through the slurry. Oxygen probes inserted into both the headspace and the slurry sample measure the level of dissolved oxygen, allowing for a simple, fast, and accurate analysis without the need for oxygen supplementation.
Another significant patent is a nozzle assembly for use in the treatment of wastewater. This nozzle includes a hollow body member with fluid inlets and outlets. A glide tube with a tapered interior is positioned within the body member, and a boulet is placed inside the glide tube to create a pressure drop zone and an expansion zone. The fluid inlet receives highly or super-saturated liquid, producing microbubbles of gas within these zones. The fluid outlet then discharges the liquid and microbubbles to a desired point of use.
Career Highlights
Throughout his career, John R Rindt has made significant strides in environmental technology. His innovative patents reflect his commitment to improving processes related to oxygen measurement and wastewater treatment.
Collaborations
Rindt has collaborated with notable individuals such as Don V Mathsen and Melanie D Hetland, contributing to advancements in his field.
Conclusion
John R Rindt's contributions to innovation in environmental technology are evident through his patents and collaborations. His work continues to impact the fields of respirometry and wastewater treatment, showcasing the importance of innovation in addressing environmental challenges.