Dale L Jennings

Title: Innovations by Dale L Jennings

Introduction

Dale L Jennings is a notable inventor based in San Diego, CA, with a focus on innovative solutions in engineering. He holds 2 patents that showcase his expertise in developing advanced technologies.

Latest Patents

One of his latest inventions is the "Cutting Abrasive Feeder, Demand Type." This invention is directed to an improved hopper for feeding abrasive material of very small grit size to a cutting head. The device comprises an open hopper vertically disposed with a transverse positioned pick-up tube located in the lower portion of the hopper. The pick-up tube has a tubular center with a necked down diameter intermediate of its ends. An opening extends from the bottom of the tube into the tubular center at a location centered in the necked down portion thereof. One end of the tube is vented to atmosphere through an adjustable orifice, and the other end is connected to a source of low pressure created within the mixing chamber of the nozzle body assembly by high pressure water passing across the open end of the tube. This effect causes abrasive grit to be drawn through the opening in the bottom of the tube out the low pressure end of the tube to the cutting head. The flow of abrasive is regulated by controlling inlet/outlet air stream mass air flow or in combination with varying abrasive inlet sizes. The device is a passive, demand system, eliminating the need for mechanically controlled abrasive flow.

Another significant patent is the "Foil Insert Honeycomb Sandwich Brazing Process and Resulting Structure." This method involves brazing the nodes of honeycomb core material and the top and bottom panels to the honeycomb core material to form a sandwich structure. The method comprises the insertion in selected cells of the core, a coil or loop formed of normally flat resilient braze foil ribbon under tension, and then releasing the tension to allow the braze foil, coil, or loop to be urged against the cell walls under its own resiliency. The top and bottom panels are then installed over the core adjacent to the cell faying edges to form top and bottom surfaces. Pressure is then applied from the panels toward the honeycomb core material. The temperature of the sandwich structure is then elevated until the braze foil is caused to melt. Capillary attraction causes the now liquid braze material to flow into the interstices between the cell nodes and between the faying edges of the honeycomb core cells and the