Abstract: In an illustrative embodiment, systems and methods for automatically building a control population closely matched to a member population and applying the control population in establishing medical outcome comparison metrics with the member population includes accessing demographic information for the member population, classifying the members into demographic groups of demographic categories including age, gender, and/or geography, accessing medical data of the member population, and classifying the members into condition groups of medical condition categories. The systems and methods may include using the demographic and medical condition classifications to match members of the member population to individuals of a control population. The systems and methods may include analyzing the member population in view of the matching individuals of the control population in relation to health outcomes, medical efforts, and/or healthcare utilization.

Abstract: A marine navigational light fixture includes a light source and a cutoff sub-housing holding the light source. The cutoff sub-housing has a main frame having first and second laterally opposite sides; first and second sidewalls projecting from the first and second sides of the main frame, respectively; and first and second cutoff surfaces located on the first and second sidewalls, respectively. The first and second cutoff surfaces are configured to provide practical cutoff of light emitted from the light source outside of a specified arc of visibility. The marine navigational light fixture also includes a main housing holding the cutoff sub-housing. A luminaire subassembly for the marine navigational light fixture includes a colored component having a color that is in the same color family as a color of light emitted from the luminaire subassembly. The colored component can be a lens, a filter cap, a PCB, and/or a telltale.

Abstract: A trolling motor system for a watercraft includes a trolling motor assembly coupled to the watercraft. A foot pedal is mechanically coupled to the trolling motor assembly such that mechanical inputs to the foot pedal cause movement of a moveable component of the trolling motor assembly. A steering motor is configured to steer the trolling motor assembly. The movement of the moveable component of the trolling motor assembly generates electrical inputs to the steering motor, thereby activating the steering motor to steer the trolling motor assembly.

Abstract: A marine navigational light fixture includes a light source and a cutoff sub-housing holding the light source. The cutoff sub-housing has a main frame having first and second laterally opposite sides; first and second sidewalls projecting from the first and second sides of the main frame, respectively; and first and second cutoff surfaces located on the first and second sidewalls, respectively. The first and second cutoff surfaces are configured to provide practical cutoff of light emitted from the light source outside of a specified arc of visibility. The marine navigational light fixture also includes a main housing holding the cutoff sub-housing. A luminaire subassembly for the marine navigational light fixture includes a colored component having a color that is in the same color family as a color of light emitted from the luminaire subassembly. The colored component can be a lens, a filter cap, a PCB, and/or a telltale.

Abstract: Pressure relief apparatus for use with fuel delivery systems are described herein. An example pressure relief apparatus includes a body defining a cavity and an annular wall projecting from a lower surface of the cavity. A first valve includes a first valve body defining a first flow passage between a first inlet to be oriented toward atmospheric pressure and a first outlet to be oriented toward a fuel tank. The first valve body houses a first flow control member to control fluid flow through the first flow passage between the first inlet and the first outlet. The first valve body projects from the lower surface of the cavity and toward an upper surface of the annular wall a distance substantially equal to a depth between the lower surface and the upper surface of the annular wall.

Abstract: Pressure relief apparatus for use with fuel delivery systems are described herein. An example pressure relief apparatus includes a body defining a cavity and an annular wall projecting from a lower surface of the cavity. A first valve includes a first valve body defining a first flow passage between a first inlet to be oriented toward atmospheric pressure and a first outlet to be oriented toward a fuel tank. The first valve body houses a first flow control member to control fluid flow through the first flow passage between the first inlet and the first outlet. The first valve body projects from the lower surface of the cavity and toward an upper surface of the annular wall a distance substantially equal to a depth between the lower surface and the upper surface of the annular wall.

Abstract: Pressure relief apparatus for use with fuel delivery systems are described herein. An example pressure relief apparatus includes a pressure relief system coupled to a body of a fuel cap to define a first side of the body and a second side of the body. The pressure relief system comprises a plurality of fluid valves to enable fluid flow from the first side of the body to the second side of the body when a first pressure differential across the pressure relief system from the first side to the second side is greater than a first reference pressure and to enable fluid flow from the second side of the body to the first side of the body when a second pressure differential across the pressure relief system from the second side to the first side is greater than a second reference pressure.

Abstract: Self-draining ullage fuel tank system and related methods are described. An example fuel tank apparatus includes a fuel tank and a ullage tank positioned at an elevation relative to the fuel tank. The example fuel tank apparatus also includes a fluid path to fluidly couple a cavity of the fuel tank and a cavity of the ullage tank. The fluid path having a first end coupled to the cavity of the fuel tank. The fluid path having a second end extending through an opening of an upper wall of the ullage tank and having an opening positioned adjacent a bottom surface of the cavity of the ullage tank.

Abstract: Apparatus and methods for mounting fuel delivery system components to fuel tanks are described herein. An example fuel tank includes a housing having a cavity to store a liquid fuel and a boss integrally formed with and protruding from a surface of the housing to receive a fuel delivery system component. The boss receives a threaded fastener to couple the fuel delivery system component to the surface of the fuel tank.

Abstract: Apparatus and methods to permanently attach fuel delivery system components to fuel tanks are described herein. An example apparatus includes an insert material integrally formed with at least a portion of the fuel tank. The insert material includes a first layer material having a low permeation characteristic and a second layer material adjacent the first layer material having a relatively lower melting point than a melting point of the first layer material to enable permanent attachment of a coupling apparatus to a surface of the fuel tank by melting at least a portion of the second layer material.

Abstract: Apparatus and methods for mounting fuel delivery system components to fuel tanks are described herein. An example fuel tank includes a housing having a cavity to store a liquid fuel and a boss integrally formed with and protruding from a surface of the housing to receive a fuel delivery system component. The boss receives a threaded fastener to couple the fuel delivery system component to the surface of the fuel tank.

Abstract: Overflow prevention apparatus for use with fuel tanks are described herein. An example overflow prevention apparatus includes a fluid coupling configured to fluidly couple a fluid tank to a liquid fill passage. The fluid coupling includes a first portion configured to receive a liquid via the liquid fill passage and a second elongate portion configured to convey the liquid received via the liquid fill passage to the fluid tank. The second elongate portion has an aperture adjacent an end of the second portion. Also, the second portion is configured to extend into the fluid tank to prevent at least one of a gas or vapor from flowing between the fluid tank and the liquid fill passage when a liquid in the fluid tank is in the aperture.

Abstract: Apparatus and methods to couple fuel delivery system components to fuel tanks are described herein. An example liquid containment apparatus includes a fuel tank having a cavity to store a liquid fuel. The fuel tank includes only one opening in fluid communication with the cavity. A coupling apparatus is coupled to a portion of the fuel tank to provide a passage between an exterior surface of the fuel tank and the cavity. The coupling receives a plurality of components of a fuel delivery system.

Abstract: Apparatus and methods to permanently attach fuel delivery system components to fuel tanks are described herein. An example apparatus includes an insert material integrally formed with at least a portion of the fuel tank. The insert material includes a first layer material having a low permeation characteristic and a second layer material adjacent the first layer material having a relatively lower melting point than a melting point of the first layer material to enable permanent attachment of a coupling apparatus to a surface of the fuel tank by melting at least a portion of the second layer material.

Abstract: Pressure relief apparatus for use with fuel delivery systems are described herein. An example pressure relief apparatus includes a pressure relief system coupled to a body of a fuel cap to define a first side of the body and a second side of the body. The pressure relief system comprises a plurality of fluid valves to enable fluid flow from the first side of the body to the second side of the body when a first pressure differential across the pressure relief system from the first side to the second side is greater than a first reference pressure and to enable fluid flow from the second side of the body to the first side of the body when a second pressure differential across the pressure relief system from the second side to the first side is greater than a second reference pressure.