Abstract: The invention provides a method, system, and device for connecting loose trial lenses into a virtual reality (VR) headset, augmented reality (AR) headset, or other head mounted display. The system consists of two components: First, a component that is installed mechanically into the headset and which remains in the headset throughout the duration of its use. Second, a component which holds loose trial lenses and can be inserted and removed from the headset at will. The two components may connect to each other mechanically, magnetically, electrically, or by other means. In the magnetic system, both components contain embedded magnets that allow the second component to hold loose trial lenses inside the headset magnetically.

Abstract: A de-aeration hydraulic circuit having application in a hydromechanical transmissions utilizes a hydraulic fluid reservoir to de-aerate hydraulic fluid. The circuit includes a high pressure side and a low pressure side having a bleed down valve therebetween, the opening of the bleed down valve causing fluid to flow from the high pressure side to the low pressure side and through a valve to the hydraulic fluid reservoir where the pressure drop causes gas that is entrained in the fluid to bubble out and vent from the atmospheric reservoir.

Abstract: A de-aeration hydraulic circuit having application in a hydromechanical transmissions utilizes a hydraulic fluid reservoir to de-aerate hydraulic fluid. The circuit includes a high pressure side and a low pressure side having a bleed down valve therebetween, the opening of the bleed down valve causing fluid to flow from the high pressure side to the low pressure side and through a valve to the hydraulic fluid reservoir where the pressure drop causes gas that is entrained in the fluid to bubble out and vent from the atmospheric reservoir.