Northwestern University

Nissan North America, Inc.

Henry Valve Company

Evan Jones

Cheng Sun

Nanzhu Zhao

Sandeep Patil

A three-dimensional printing system is provided that includes a tank, a textured substrate connected to the tank, and a reservoir. The tank contains a liquid photopolymer resin. The textured substrate is configured to allow light to pass through into the liquid photopolymer resin. The reservoir contains lubricant and is formed around a perimeter of the tank. The reservoir is connected to the textured substrate and configured to supply the lubricant to the textured substrate.

Three-dimensional printer apparatus with integrated lubricant replenishment system

A 3D printing system includes a tank containing a liquid photopolymer resin. A textured substrate is connected to the tank. The textured substrate is configured such that light passes therethrough into the liquid polymer resin. A layer of an inert material is disposed on the textured surface. The liquid photopolymer resin and the inert material are discharged from the tank through a tank outlet. Additional liquid photopolymer resin and additional inert material are added to the tank through a tank inlet.

Replenishment system for three-dimensional printing system

An improved relief valve, particularly suited for interior use in refrigeration systems. The valve includes a valve body having an inlet, an outlet, and a passageway therebetween with a valve seat positioned in the passageway. Inside of the passageway are mounted an adjustable valve spring retainer, a coil valve spring, a valve piston including a fluorocarbon sealing surface thereon, and a bearing means mounted between one end of the valve spring and either the retainer or valve piston. The spring retainer is adjusted by turning in its threaded mounting. The bearing means prevents the turning moment applied to the retainer from extending to the valve piston. Any rotational relation between the piston sealing surface and seat which would be deleterious to the sealing engagement is eliminated.

Growing community of inventors

Evanston, IL, United States of America

Evan Jones