Abstract:
A buffer layer can be used in conjunction with a cutting table to reduce cutting tool wear. During use, a first surface of the buffer layer can rest on a top surface of the cutting table, and a second surface of the buffer layer can receive a material to be cut. The buffer layer can include one or more channels in its second surface, and the one or more channels can correspond to a pattern to be cut from the material. The depth of the one or more channels can be sufficient to provide a clearance depth between a tip of the cutting tool and a bottom surface of each of the one or more channels. The clearance depth can prevent the tip of the cutting tool from wearing against the bottom surface of the channels, thereby increasing life expectancy of the cutting tool and reducing process costs.
Abstract:
A mounting system can be used to releasably attach a first item to a second item. In one example, the first item can be a protective encasement for a mobile electronic device, and the second item can be a bicycle mount, suction cup mount, vehicle surface, office surface, or home surface. The mount assembly can include a first housing portion connected to a second housing portion, and can include a cam and torsion spring disposed within a housing volume defined by the first and second housing portions. A recess in the mount assembly can receive and retain a mounting cleat associated with the first item. One or more clasp mechanisms of the mount assembly can be configured to clasp the mounting cleat when it is inserted into the recess and to release the mounting cleat when the first housing portion is rotated relative to the second housing portion.
Abstract:
A flexible two-phase cooling apparatus for cooling microprocessors in servers can include a primary cooling loop, a first bypass, and a second bypass. The primary cooling loop can include a reservoir, a pump, an inlet manifold, an outlet manifold, and flexible cooling lines extending from the inlet manifold to the outlet manifold. The flexible cooling lines can be routable within server housings and can be fluidly connected to two or more series-connected heat sink modules that are mountable on microprocessors of the servers. The flexible cooling lines can be configured to transport low-pressure, dielectric coolant. The first bypass can include a first valve configured to regulate a first bypass flow of coolant through the first bypass. The second bypass can include a second valve configured to regulate a second bypass flow of coolant through the second bypass.
Abstract:
A fluid distribution unit for a two-phase cooling system can include a reservoir configured to receive a two-phase flow of dielectric coolant. A first pump can be fluidly connected to a supply line extending from the reservoir. A heat rejection loop can be fluidly connected to the reservoir and can include a heat exchanger and a second pump. The second pump can circulate a flow of single-phase liquid coolant from the reservoir, through the heat exchanger, and back to the reservoir. A manifold can distribute coolant within the two-phase cooling system. The manifold can include a bypass fluidly connecting an inlet chamber to an outlet chamber. A valve can be installed in the bypass and can control a flow of pressurized coolant to maintain a desired pressure differential between the inlet and outlet chambers. The valve can be a differential pressure bypass valve.
Abstract:
A method of providing stable pump operation in a two-phase cooling system is disclosed. The method can include providing a cooling system with a reservoir fluidly connected to a pump. The reservoir can include a liquid-vapor interface separating an amount of vapor coolant from an amount of substantially subcooled liquid coolant. The method can include delivering two-phase bubbly flow to an upper portion of the reservoir above the liquid-vapor interface. The two-phase bubbly flow can include vapor bubbles of coolant dispersed in liquid coolant. The vapor bubbles can condense upon passing through the liquid-vapor interface and interacting with and transferring heat to subcooled liquid coolant in the reservoir. A continuous outlet flow of single-phase liquid coolant can be delivered from the reservoir to the pump, thereby ensuring stable pump operation despite the presence of two-phase flow in portions of the cooling system.
Abstract:
A method of condensing vapor present in two-phase bubbly flow within a cooling apparatus can include mixing a first flow of coolant containing two-phase bubbly flow with a second flow of coolant containing single-phase liquid flow. The two-phase bubbly flow can have a first flow quality greater than zero and can include vapor bubbles dispersed in liquid coolant. The single-phase liquid flow can have a flow quality of zero. Mixing the first flow of coolant and the second flow of coolant within the cooling apparatus can result in heat transfer from the first flow of coolant to the second flow of coolant and can cause vapor bubbles within first flow of coolant to condense, thereby providing a third flow of coolant with a third flow quality that is less than the first flow quality.
Abstract:
A waterproof protective case can include a front portion with a cavity configured to receive a personal electronic device and a back portion configured to attach to the front portion to form the protective case. The back portion can include an overmolded gasket or a form-in-place gasket extending around a perimeter of the back portion. The front portion can include a mating surface extending around a perimeter of the cavity. The mating surface of the front portion can be configured to seal against a flexible sealing surface of the gasket when the back portion is attached to the front portion to provide a liquid-tight seal.
Abstract:
A socket tool can include a socket having a retention device configured to receive and retain a lubricant fitting to simplify removal or installation of the lubricant fitting. In one example, the retention device can be disposed within the socket between the first and second ends of the socket, and the retention device can be configured to receive and retain a nipple portion of the lubricant fitting at a depth inward from the second end of the socket such that a threaded portion of the lubricant fitting extends beyond the second end of the socket.