Abstract:
A method of making a fused silica article having a combined concentration of protium and deuterium in a range from about 1×1016 molecules/cm3 up to about 6×1019 molecules/cm3. In some embodiments, deuterium is present in an amount greater than its natural isotopic abundance. The method includes the steps of providing a fused silica boule, diffusing at least one of protium and deuterium into the boule, and annealing the boule to form the fused silica article. A method of diffusing hydrogen into fused silica and a fused silica article loaded with hydrogen formed by the method are also described.
Abstract translation:制备具有约1×10 16分子/ cm 3至多约6×10 19分子/ cm 3范围内的ium和氘的组合浓度的熔融二氧化硅制品的方法。 在一些实施方案中,氘的存在量大于其天然同位素丰度。 该方法包括以下步骤:提供熔融二氧化硅焦耳,将钚和氘中的至少一种扩散到该原子核中,以及对该坯进行退火以形成熔融二氧化硅制品。 还描述了将氢扩散到熔融二氧化硅中的方法和通过该方法形成的负载有氢的熔融二氧化硅制品。
Abstract:
A geothermal vault apparatus for use in a geothermal system includes a tank vault to enclose the one or more manifolds of the system. The tank vault includes a tank shell defining an interior volume (e.g., formed of fiber reinforced plastic material), an access opening to permit a person to enter the tank shell, and an arrangement of a plurality of transition fittings located in a cylindrical wall of the tank shell and configured to couple a plurality of energy transfer pipes (e.g., HPDE pipes) to a plurality of ports of the one or more manifolds enclosed within the tank vault.
Abstract:
A method of making a fused silica article having a combined concentration of protium and deuterium in a range from about 1×1016 molecules/cm3 up to about 6×1019 molecules/cm3. In some embodiments, deuterium is present in an amount greater than its natural isotopic abundance. The method includes the steps of providing a fused silica boule, diffusing at least one of protium and deuterium into the boule, and annealing the boule to form the fused silica article. A method of diffusing hydrogen into fused silica and a fused silica article loaded with hydrogen formed by the method are also described.
Abstract translation:制备具有约1×10 16分子/ cm 3至多约6×1019分子/ cm 3范围内的ium和氘的组合浓度的熔融二氧化硅制品的方法。 在一些实施方案中,氘的存在量大于其天然同位素丰度。 该方法包括以下步骤:提供熔融二氧化硅焦耳,将钚和氘中的至少一种扩散到该原子核中,以及对该坯进行退火以形成熔融二氧化硅制品。 还描述了将氢扩散到熔融二氧化硅中的方法和通过该方法形成的负载有氢的熔融二氧化硅制品。
Abstract:
A system for identifying the key blank corresponding to a master key is provided. The system includes a first luminous surface and a second luminous surface. The second luminous surface is disposed opposite the first luminous surface such that the master key is disposable therebetween. The first and second luminous surfaces are operable to generate an image of the master key. A receiver is provided to capture the image of the master key. The system also includes a control having a memory that stores information on a plurality of key blanks. The control is operable to identify the key blank corresponding to the master key based on the image captured by the receiver.
Abstract:
A feed spring for use in displaying items in a display rack is disclosed. The feed spring comprises a sheet of elastic material configured to be formed into a hollow three-dimensional object. The hollow three-dimensional object is secured to the display rack and is compressible to provides a biasing force to position display items in the display rack. The feed spring is maintained as the hollow three-dimensional object in its uncompressed and compressed configurations by interlocking tabs, adhesives, double sided tapes, or other suitable securement mechanism. The feed spring may be suitably secured to the display rack by attachment to the frames of the display rack or other suitable securement means. Preferably, the hollow three-dimensional object in its uncompressed configuration is a hollow cylinder formed by rolling the sheet of elastic material.
Abstract:
A system for holding or transporting engraveable workpieces of different configurations is provided. The system includes a first workpiece carrier that has an internal relief configured to receive a first workpiece having a first configuration. The system also includes a second workpiece carrier that has an internal relief configured to receive a second workpiece having a second configuration. The outer surface of the second workpiece carrier is substantially the same as the outer shape of the first workpiece carrier, to thereby provide a carrier of uniform outer dimensions regardless of the workpiece configuration. The carrier may hold the workpiece within the internal relief through a snap lock and in such a manner as to avoid contact with and possible damage from an adjacently stored workpiece.
Abstract:
An engraving system for positioning a workpiece to be engraved. The workpiece is held in a workpiece carrier having a positioning structure that engages a complementary positioning structure on an engraving table. The workpiece is centered in the workpiece carrier so that when the workpiece carrier is in position on the engraving table, the center of the workpiece is known to the engraving system. This engraving system allows for an unskilled operator to engrave workpieces of different configurations in a reliable manner.
Abstract:
A continuous variable clutch is provided. The continuous variable clutch includes a first sheave member and a second sheave member. The first sheave member includes a first central hub and a first conical-faced surface extending radially from the first central hub. The second sheave member includes a second central hub and a second conical-faced surface that extends radially from the second central hub. The second central hub of the second sheave member is received in a cavity of the first central hub such that the first conical-faced surface of the first sheave member facing the second conical-faced surface of the second sheave portion. The second central hub moving axially within the first central hub based on an amount of torque on the continuous variable clutch. The first sheave member and the second sheave member further forming a central passage to receive an input shaft of a transmission.
Abstract:
A storm door assembly for a doorway to a building comprises a frame configured for hinged mounting at a doorway of a building. The frame comprises an opening through the frame, the opening comprising a depth and at least two channels disposed in parallel around an inner surface of the depth. At least two removable frame inserts are provided, each comprising a front surface, a rear surface, and an insert perimeter comprising a plurality of recesses positioned about the perimeter. A plurality of twisting cams are each disposed within one of the plurality of recesses and not extending beyond the front and rear surfaces, and the at least two frame inserts are each held in a fixed position with respect to the frame via placement of the twisting cams within the at least two channels.
Abstract:
A key cutting machine for cutting a notch pattern on a key blank is disclosed. The key cutting machine comprises a pair of cutting heads and a clamp mechanism. Each cutting head includes a cutting wheel having an edge and an alignment structure mounted behind the cutting wheel. Each alignment structure has a key guide portion aligned tangent to the edge of a corresponding cutting wheel to engage and position a key blank laterally. The clamp mechanism is positioned between the cutting heads and is configured to hold the key blank stationary.