Lowell R Milligan

Title: Lowell R. Milligan: Innovator in Fluid Control and Well Logging Technologies

Introduction

Lowell R. Milligan is a notable inventor based in Houston, TX, recognized for his contributions to fluid control and well logging technologies. With a total of 2 patents, Milligan has developed innovative solutions that enhance the efficiency and functionality of various mechanical systems.

Latest Patents

One of Milligan's latest patents is the Pressure Isolated Pilot Check Valve. This invention features an improved check valve designed to selectively control fluid flow through a valve seat. A spring biases a plunger against the valve seat when the fluid is stationary. The movement of the fluid pushes the valve plunger against the spring to open the aperture of the valve seat. An actuator selectively exerts a force against the plunger to close it against the valve seat. In one embodiment, the actuator directs pressurized fluid against a second end of the plunger, while a seal prevents leakage of fluid toward the plunger's first end in contact with the valve seat. A cavity between the seal and the plunger's first end can be vented to the atmosphere to maintain the pressure differential created by the pressurized fluid against the plunger's second end.

Another significant patent is the Well Logging Apparatus. This invention consists of an elongated body member with a plurality of crank arms pivotally attached, symmetrically disposed around the perimeter of the body member. Each crank arm has a contact pad at its first end, maintaining substantial contact with the sidewalls of a borehole. The second end of each crank arm is pivotally coupled to a drive link, which is attached to a piston that is longitudinally slidably mounted within the body member. The longitudinal movement of the piston results in corresponding lateral movement of the crank arms and their attached contact pads. A mechanism allows the piston to traverse a limited range of longitudinal movement, exerting a force that urges the piston to the boundary of such travel, maximizing the lateral extension of the contact pads.

Career Highlights

Throughout his career, Lowell R. Milligan has worked with prominent companies such as Dresser Industries, Inc. and Western Atlas International, Inc. His experience in these organizations has contributed to his expertise in developing innovative technologies.

Collaborations

Milligan has collaborated with notable individuals in the field, including Keith A. Moriarty and Jacques Maissa. These