Abstract: A method of manufacture for a carbon/carbon part including a method to remove contamination from an intermediate product of the carbon/carbon part and furnace utilizing a gaseous reducing agent hydrogen gas to reduce the contaminates, thereby causing the contaminates to transition to a gaseous state at relatively lower temperatures. A method to remove contamination from an intermediate product of the carbon/carbon part and furnace utilizing hydrogen gas to reduce the contaminates, thereby causing the contaminates to transition to a gaseous state at relatively lower temperatures.

Abstract: A method for making a component includes the steps of providing a preform formed of carbon fibers. A first densification is performed forming a carbon composite. A first hardening of the carbon composite is performed. The method machines the carbon composite to form a shape. The method then performs a second densification and a second hardening. The method then final machines the carbon composite to form a final shape of the component.

Abstract: A method of manufacture for a carbon/carbon part including a method to remove contamination from an intermediate product of the carbon/carbon part and furnace utilizing a gaseous reducing agent hydrogen gas to reduce the contaminates, thereby causing the contaminates to transition to a gaseous state at relatively lower temperatures. A method to remove contamination from an intermediate product of the carbon/carbon part and furnace utilizing hydrogen gas to reduce the contaminates, thereby causing the contaminates to transition to a gaseous state at relatively lower temperatures.

Abstract: A method of pitch infiltration of a densified preform may comprise disposing a pitch on a densified preform surface; heating the pitch and making the pitch into an anisotropic network structure; guiding the pitch through the densified preform in a predetermined direction; aligning the pitch in a predetermined orientation; and stabilizing the pitch. The method may result in a carbon/carbon part having increase wear life, enhanced oxidation protection, and/or reduced moisture sensitivity.

Abstract: A system is disclosed comprising a carbon/carbon brake disk comprising a carbon fiber having a crystal orientation (CO) between 80% and 100% and a coefficient of friction of more than 0.183 in response to a rejected takeoff condition.

Abstract: A holder for planar antenna comprising a base and a support, the base being provided with a location hole and an assembly hole in consistent with a bottom portion of the support, a vertical opening being disposed on a top of the support and a horizontal opening being disposed at a side of the support. When the holder is placed on a table top, the antenna is inserted into the vertical opening. When the holder is hang onto a wall, the antenna is inserted into the horizontal opening. Compared to conventional holders, the providing of the horizontal and vertical openings facilitates both hanging the holder to the wall and placing on a table top, which is convenient for both indoor and outdoor use. The supports and the base are detachable, facilitating storage and transport.

Abstract: A telescopic device including an outer pipe, an inner pipe fitted in the outer pipe, and a sleeve disposed between the outer pipe and the inner pipe. The telescopic device contains a lock mechanism, containing two bosses, and located between the inner pipe and the outer pipe. A tripod is also provided.

Abstract: A method of manufacture for a carbon/carbon part including a method to remove contamination from an intermediate product of the carbon/carbon part and furnace utilizing a gaseous reducing agent hydrogen gas to reduce the contaminates, thereby causing the contaminates to transition to a gaseous state at relatively lower temperatures. A method to remove contamination from an intermediate product of the carbon/carbon part and furnace utilizing hydrogen gas to reduce the contaminates, thereby causing the contaminates to transition to a gaseous state at relatively lower temperatures.

Abstract: A method of making carbon fiber material according to various embodiments of the present disclosure includes forming a polymer resin to have a polydispersity index (PDI) that is less than approximately 2.5. The method further includes spinning the polymer resin to create an acrylic fiber having an acrylic fiber length. The method further includes oxidizing the acrylic fiber while stretching the acrylic fiber to create an oxidized fiber that has an oxidized fiber length that is at least one of greater than or equal to approximately 100 percent (100%) of the acrylic fiber length. The method further includes carbonizing the oxidized fiber to create a carbon fiber.

Abstract: The method may include forming fibers with a silicon-based sizing, forming a fibrous preform from the fibers, forming a silicon dioxide coating around the fibers, carbonizing the fibrous preform, and densifying the fibrous preform. In various embodiments, forming the fibers with the silicon-based sizing includes utilizing a mass of the silicon-based sizing that is at least 1.0% of a mass of the fibers.

Abstract: A system is disclosed comprising a carbon/carbon brake disk comprising a carbon fiber having a crystal orientation (CO) between 80% and 100% and a coefficient of friction of more than 0.183 in response to a rejected takeoff condition.

Abstract: A holder for planar antenna comprising a base and a support, the base being provided with a location hole and an assembly hole in consistent with a bottom portion of the support, a vertical opening being disposed on a top of the support and a horizontal opening being disposed at a side of the support. When the holder is placed on a table top, the antenna is inserted into the vertical opening. When the holder is hang onto a wall, the antenna is inserted into the horizontal opening. Compared to conventional holders, the providing of the horizontal and vertical openings facilitates both hanging the holder to the wall and placing on a table top, which is convenient for both indoor and outdoor use. The supports and the base are detachable, facilitating storage and transport.

Abstract: A system is disclosed comprising a carbon/carbon brake disk comprising a carbon fiber having a crystal orientation (CO) between 80% and 100% and a coefficient of friction of more than 0.183 in response to a rejected takeoff condition.

Abstract: The method may include forming fibers with a silicon-based sizing, forming a fibrous preform from the fibers, forming a silicon dioxide coating around the fibers, carbonizing the fibrous preform, and densifying the fibrous preform. In various embodiments, forming the fibers with the silicon-based sizing includes utilizing a mass of the silicon-based sizing that is at least 1.0% of a mass of the fibers.

Abstract: A telescopic device including an outer pipe, an inner pipe fitted in the outer pipe, and a sleeve disposed between the outer pipe and the inner pipe. The telescopic device contains a lock mechanism, containing two bosses, and located between the inner pipe and the outer pipe. A tripod is also provided.

Abstract: A system is disclosed comprising a carbon/carbon brake disk comprising a carbon fiber having a crystal orientation (CO) between 80% and 100% and a coefficient of friction of more than 0.183 in response to a rejected takeoff condition.

Abstract: The invention relates to an integrative three-segment tripod. The tripod has a main bracket and at least one stand leg having an upper segment, a middle segment and a lower segment. The upper segment, the middle segment, and the lower segment are each telescopically connected together. The stand leg further includes a locking unit and a safety device. The locking unit fixes the middle segment to the upper segment and simultaneously fixes the lower segment to the middle segment. The safety device is associated with the locking unit and keeps the locking unit in the fixing state when the locking unit is in the locking position. Therefore, each stand leg of the tripod can be controlled easily by a single locking unit, and the safety device prevents the rotation lever from inadvertent release.

Abstract: The present invention discloses a winding tripod, which includes a cradle head and three legs. Each of the legs is connected at one end with the cradle head via a universal joint, and used at the other end for supporting. At least one of the legs therein includes multiple first movable joints and multiple second movable joints, which are connected together alternately and hinged via a locking coupling device. The first and the second movable joints are provided with a hoverball hole. Between the first and the second movable joints are positioned a spring and a hoverball. The hoverball is clipped into the hoverball hole when the first and the second movable joints are pivotally turned to a predetermined angle.

Abstract: The invention relates to an integrative three-segment tripod. The tripod has a main bracket 1 and at least one stand leg, each stand leg including an upper segment, a middle segment and a lower segment, the upper segment is connected to the main bracket 1, the middle segment is telescopically connected to the upper segment, and the lower segment is telescopically connected to the middle segment, wherein the stand leg further includes a locking unit and a safety device, the locking unit is provided at the joints where the middle segment is joined the upper segment and the lower segment, and can fix the middle segment to the upper segment and simultaneously fix the lower segment to the middle segment, and the safety device is associated with the locking unit, which can keep the locking unit in the fixing state when the locking unit is in the locking position.

Abstract: An adjustable frame for holding a paint roller includes a pair of square arms. Each of the pair of square arms includes a distal part, a joint part, a pair of shafts at the ends of the distal parts, and a pair of racks that are opposite to each other and are respectively fixed at the ends of the joint parts. A straight square tube holds the pair of joint parts and holds the pair of racks into its internal space. The pair of racks mesh with a gear wheel within the internal space of the square tube. A tee-joint holds the square tube. A pair of bearing holes through the walls of the tee-joint and the square tube hold up a bar, to which the gear wheel is fixed. One knob is fixed to one of two ends of the bar, outside the wall of the tee-joint. The present invention provides a holding-length adjustable frame that is capable of flexibly and tightly clamping and holding a variety of longitudinally sized paint rollers.