Peter A St John

Title: Innovations of Peter A St John

Introduction

Peter A St John is a notable inventor based in Adelphi, MD (US). He has made significant contributions to the field of fluid dynamics and ultrasonic technology. With a total of 3 patents to his name, St John has demonstrated a commitment to advancing innovative solutions in his area of expertise.

Latest Patents

One of his latest inventions is the Ultrasonic Bubble Detector. This apparatus utilizes a typically one-piece, rigid housing that has a channel defined for receiving flow tubing in which bubbles are to be detected. The design includes first and second ultrasonic sending and receiving transducers positioned on opposite sides of the channel. An aperture filled with an elastomeric material capable of transmitting ultrasound energy is also part of the design. Additionally, an air-containing slot may be positioned at the bottom of the channel to hinder the propagation of ultrasound energy through the housing from the first to the second transducer by a route other than one passing through the elastomeric material.

Another significant patent is the Flow Metering Apparatus for a Fluid Infusion System. This metering apparatus controls the flow of fluid through a fluid infusion system at an operator-designated rate. It includes a single-use cassette with a syringe-type pump in the flow system. The cassette is removably mounted on actuator apparatus that drives the syringe plunger through alternate fill and pump modes to advance fluid through the system. The design compensates for the lack of flow during fill strokes, ensuring an average flow rate that corresponds to the designated rate.

Career Highlights

Peter A St John is currently associated with Baxter Travenol Laboratories, Inc., where he continues to innovate and develop new technologies. His work has had a significant impact on the medical and fluid dynamics industries.

Collaborations

Throughout his career, St John has collaborated with notable colleagues, including Timothy G Kelly and David A Lohr. These collaborations have contributed to the advancement of his inventions and the overall progress in their respective fields.

Conclusion

Peter A St John is a distinguished inventor whose work in ultrasonic technology and fluid dynamics has led to valuable innovations. His patents reflect a deep understanding of the challenges in these fields and a commitment to finding effective solutions.