Schaefer, Jr.
Donald B. Schaefer, Jr., Blue Springs, MO US
Patent application number | Description | Published |
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20150026995 | IN-GRAIN CONDITION SENSING SYSTEM - A condition sensing system for a grain drying system can include a cable assembly and at least one sensor. The cable assembly can include a support cable and a data-conveying member. The sensor can detect in-grain humidity and/or temperature. The sensor can be coupled to the cable assembly between first and second ends of the assembly. A protective enclosure can enclose the sensor and a respective portion of the cable assembly. Further, in-grain humidity and/or temperature data can be transmitted from the condition sensing system to the grain drying system. | 01-29-2015 |
James T. Schaefer, Jr., Tyler, TX US
Patent application number | Description | Published |
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20100123016 | System and Method for Oil Return in an HVAC System - A system and a method are provided for returning oil in a heating, ventilation, and air conditioning (HVAC) system by determining when an ambient zone temperature is equal to or less than a temperature limit and reversing a direction of refrigerant flow of the HVAC system based on the length of time. Also, a system and a method are provided for monitoring the length of operation in a first and a second heating mode and for reversing a direction of refrigerant flow based on the length of time operation occurs in the first and second heating modes. A system and a method having a first compressor, a first heating mode, a second heating mode, a defrost mode, and a controller is disclosed. The controller selectively controls initiation of the defrost mode in response to an HVAC system operating in a heating mode of operation for a predetermined amount of time. | 05-20-2010 |
James Thomas Schaefer, Jr., Tyler, TX US
Patent application number | Description | Published |
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20100101246 | System and Method For Controlling Working Fluid Charge In A Vapor Compression Air Conditioning System - Vapor compression air conditioning systems are provided with a flow restrictor for transferring working fluid to and from at least one of the compressor low pressure inlet conduit and compressor high pressure outlet conduit to provide for accurate charge adjustment to achieve predetermined fluid sub-cooling. Pressure and temperature measurements are taken at a condenser fluid outlet conduit and provided to a microcontroller for determining fluid sub-cooling and comparing sub-cooling with a predetermined target sub-cooling. A charge addition or recovery apparatus may include a solenoid valve controlled by the microcontroller to more accurately control the addition or recovery of refrigerant fluid charge. | 04-29-2010 |
20130067943 | System and Method for Oil Return in an HVAC System - A system and a method are provided for returning oil in a heating, ventilation, and air conditioning (HVAC) system by determining when an ambient zone temperature is equal to or less than a temperature limit and reversing a direction of refrigerant flow of the HVAC system based on the length of time. Also, a system and a method are provided for monitoring the length of operation in a first and a second heating mode and for reversing a direction of refrigerant flow based on the length of time operation occurs in the first and second heating modes. A system and a method having a first compressor, a first heating mode, a second heating mode, a defrost mode, and a controller is disclosed. The controller selectively controls initiation of the defrost mode in response to an HVAC system operating in a heating mode of operation for a predetermined amount of time. | 03-21-2013 |
Louis E. Schaefer, Jr., Kemah, TX US
Patent application number | Description | Published |
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20090283159 | FUEL TANK WITH TRASH AND WATER SEPARATION/CONTAINMENT DEVICE - A fuel tank apparatus is particularly suited for use on vehicles and marine vessels. A fuel tank can be used to supply fuel to an engine, compressor or the like such as when the tank is used to operate an engine or air compressor. The apparatus includes a tank body having a plurality of tank outer walls surrounding an interior that enables fuel to be contained. The tank body has upper and lower end portions. Flow lines are provided for adding fuel to the tank interior and for discharging fuel that is to be consumed by an engine, compressor or other device. The lower end portion of the tank body provides a sump that is specially configured to trap the undesirable contents of fuel such as trash, water, debris, settleable solids and the like. The interior includes a baffle structure that is space inwardly of the tank body providing a vent flow passage that extends from a position just above the sump to a position next to the upper end portion of the body. In this fashion, the sump traps settleable material while the vent flow passage allows air to bubble upwardly and not discharge through the fuel discharge flow line. | 11-19-2009 |
20110107954 | Combination Catamaran and V-hull - A marine vessel provides a hull having a bow, stern, and port and starboard portions, and a hull bottom having port and starboard sides that form a vee shape. A channel extends longitudinally from the stern toward the bow a distance at least half the hull length, and can extend substantially the entire length of the hull. The bottom of the channel is defined in part by a portion of the hull bottom. The top of the channel is defined by one or more upper panels or surfaces that form catamaran hulls with the port and starboard sides of the hull bottom when the channel is filled with water in a non-planing hull position. The channel is above the water surface when the hull is in a planing position wherein the water drains from the channel. | 05-12-2011 |