Abstract: The present disclosure provides a catalyst feeder for a polymerization process that uses a solid catalyst. A catalyst feeder includes a housing, a plug disposed radially inside the housing and rotatable relative to the housing, and an end plate coupled to the housing. If the plug is in a first rotational position, each one of a first plurality of magnets coupled, to an axial end of the plug is axially aligned with one of a. second plurality of magnets coupled to a surface of the end plate facing towards the axial end of the plug, thereby moving the plug towards a first seated position in relation to the housing. If the plug is in a second rotational position, the plurality of first magnets and the plurality of second magnets are axially offset from each other, thereby moving the plug towards an unseated position in relation to the housing.

Abstract: A friction welding method includes: applying axial force to first and second metallic components so as to force the components against each other at an interface therebetween, while oscillating the two components relative to each other in a cyclic motion, so as to generate friction and heat at the interface; rapidly stopping the cyclic motion; and applying a spike in the axial force to complete a weld between the first and second components.

Abstract: A friction welding method includes: applying axial force to first and second metallic components so as to force the components against each other at an interface therebetween, while oscillating the two components relative to each other in a cyclic motion, so as to generate friction and heat at the interface; rapidly stopping the cyclic motion; and applying a spike in the axial force to complete a weld between the first and second components.

Abstract: A method of repairing a blisk having a hub with circumferentially spaced blades. The method can include removing a portion of a blade and replacing the portion with a replacement piece. The method can further include welding the replacement portion to the blade. The method can further include at least one of inspecting the weld after the completion of the weld and prior to heat treatment, dimensionally inspecting the replacement piece after machining, peening the blade, and surface finishing the replacement piece.

Abstract: A vehicle track play set includes a base, a plate coupled to and extending upwardly from the base, and first and second tracks extending along the plate toward the base. The first track includes a first curved portion extending outwardly from a first surface of the plate and a second curved portion extending outwardly from an opposite second surface of the plate. The first track extends through a first opening in the plate between the first and second curved portions. The second track includes a third curved portion extending outwardly from the second surface and a fourth curved portion extending outwardly from the first surface. The second track extends through a second opening in the plate between the third and fourth curved portions.

Abstract: An infant support structure includes a support frame having a lower member configured to engage a support surface. First and second spaced arcuate posts extend upwardly from the lower member, each of the posts having a distal end portion. A seat portion is disposed between and coupled to the posts. A first end of a toy bar is secured to the distal end portion of one of the posts, and a second end of the toy bar is secured to the distal end portion of the other of the posts.

Abstract: A vehicle track play set includes a base, a plate coupled to and extending upwardly from the base, and first and second tracks extending along the plate toward the base. The first track includes a first curved portion extending outwardly from a first surface of the plate and a second curved portion extending outwardly from an opposite second surface of the plate. The first track extends through a first opening in the plate between the first and second curved portions. The second track includes a third curved portion extending outwardly from the second surface and a fourth curved portion extending outwardly from the first surface. The second track extends through a second opening in the plate between the third and fourth curved portions.

Abstract: A method of heat treating an engine component includes connecting a disk having a plurality of titanium components to a fixture, positioning one of the titanium components into an induction coil loop, providing an alternating current to the induction coil loop, heat treating the titanium component positioned in the induction coil loop and, monitoring a temperature of the heat treating.

Abstract: A method of thermal management includes positioning a first workpiece and a second workpiece in at least one tool having internal cavities, passing a fluid into at least one of the internal cavities to cool portions of the first and second workpieces, welding the first workpiece and the second workpiece in the at least one tool by resistance heating to form a joined workpiece, controlling a rate of cooling of the joined workpiece to slow a rate of cooling through at least one of a resistive heat element or welding electrode of the at least one tool.

Abstract: A fastener system includes a toy product, a support platform, and a plug that engages a keyhole formed into the product. The plug includes a base and a pronged key extending from the base. The support platform includes a through-hole that permits the passage of the key into the packaging. One or more integrally-formed biasing members are located on the base of the plug to draw the key toward the product and create a secure connection. The pronged key may be formed from a plastic material and configured such that it plastically deforms but remains attached to the key when and predetermined force is applied to the key to pull the key from a misaligned position with respect to the key hole.

Abstract: A vehicle track play set includes a base, a plate coupled to and extending upwardly from the base, and first and second tracks extending along the plate toward the base. The first track includes a first curved portion extending outwardly from a first surface of the plate and a second curved portion extending outwardly from an opposite second surface of the plate. The first track extends through a first opening in the plate between the first and second curved portions. The second track includes a third curved portion extending outwardly from the second surface and a fourth curved portion extending outwardly from the first surface. The second track extends through a second opening in the plate between the third and fourth curved portions.

Abstract: A child retaining structure includes a wall assembly defining a child receiving area, a platform disposed within the child receiving area, and a support member connected to the wall assembly and supporting the platform. The support member and the platform are reconfigurable between a raised position so that the child retaining structure functions as a bassinet, and a lowered position so that the child retaining structure functions as a playpen, or alternatively, as a playhouse.

Abstract: An infant support structure includes a support frame having a lower member configured to engage a support surface. First and second spaced arcuate posts extend upwardly from the lower member, each of the posts having a distal end portion. A seat portion is disposed between and coupled to the posts. A first end of a toy bar is secured to the distal end portion of one of the posts, and a second end of the toy bar is secured to the distal end portion of the other of the posts.

Abstract: A fastener system includes a toy product, a support platform, and a plug that engages a keyhole formed into the product. The plug includes a base and a pronged key extending from the base. The support platform includes a through-hole that permits the passage of the key into the packaging. One or more integrally-formed biasing members are located on the base of the plug to draw the key toward the product and create a secure connection. The pronged key may be formed from a plastic material and configured such that it plastically deforms but remains attached to the key when and predetermined force is applied to the key to pull the key from a misaligned position with respect to the key hole.

Abstract: A fastener system includes a toy product, a support platform, and a plug that engages a keyhole formed into the product. The plug includes a base and a pronged key extending from the base. The support platform includes a through-hole that permits the passage of the key into the packaging. One or more integrally-formed biasing members are located on the base of the plug to draw the key toward the product and create a secure connection. The pronged key may be formed from a plastic material and configured such that it plastically deforms but remains attached to the key when and predetermined force is applied to the key to pull the key from a misaligned position with respect to the key hole.

Abstract: An infant support structure includes a support frame having a lower member configured to engage a support surface. First and second spaced arcuate posts extend upwardly from the lower member, each of the posts having a distal end portion. A seat portion is disposed between and coupled to the posts. A first end of a toy bar is secured to the distal end portion of one of the posts, and a second end of the toy bar is secured to the distal end portion of the other of the posts.

Abstract: A child retaining structure includes a wall assembly defining a child receiving area, a platform disposed within the child receiving area, and a support member connected to the wall assembly and supporting the platform. The support member and the platform are reconfigurable between a raised position so that the child retaining structure functions as a bassinet, and a lowered position so that the child retaining structure functions as a playpen, or alternatively, as a playhouse.

Abstract: A vehicle track play set includes a base, a plate coupled to and extending upwardly from the base, and first and second tracks extending along the plate toward the base. The first track includes a first curved portion extending outwardly from a first surface of the plate and a second curved portion extending outwardly from an opposite second surface of the plate. The first track extends through a first opening in the plate between the first and second curved portions. The second track includes a third curved portion extending outwardly from the second surface and a fourth curved portion extending outwardly from the first surface. The second track extends through a second opening in the plate between the third and fourth curved portions.

Abstract: A fastener system includes a toy product, a support platform, and a plug that engages a keyhole formed into the product. The plug includes a base and a pronged key extending from the base. The support platform includes a through-hole that permits the passage of the key into the packaging. One or more integrally-formed biasing members are located on the base of the plug to draw the key toward the product and create a secure connection. The pronged key may be formed from a plastic material and configured such that it plastically deforms but remains attached to the key when and predetermined force is applied to the key to pull the key from a misaligned position with respect to the key hole.

Abstract: A vehicle track play set includes a base, a plate coupled to and extending upwardly from the base, and first and second tracks extending along the plate toward the base. The first track includes a first curved portion extending outwardly from a first surface of the plate and a second curved portion extending outwardly from an opposite second surface of the plate. The first track extends through a first opening in the plate between the first and second curved portions. The second track includes a third curved portion extending outwardly from the second surface and a fourth curved portion extending outwardly from the first surface. The second track extends through a second opening in the plate between the third and fourth curved portions.