Abstract: Methods of forming a stationary housing of a rotatable cutting element for use on an earth-boring tool may include forming one or more annular recesses extending around an outer surface of a first sleeve, inserting the first sleeve within a second sleeve, joining the first sleeve with the second sleeve, and removing a portion of material from an inner surface of the first sleeve to expose the annular recesses. Methods may also include forming a first portion and a second portion of a sleeve, forming an annular recess around an entire perimeter of an inner surface of each of the first portion and the second portion of the sleeve proximate a longitudinal end thereof, and bonding the longitudinal ends of the first portion and the second portion of the sleeve along an interface therebetween. Stationary housings formed from such methods are also provided.

Abstract: A cutting element assembly includes a sleeve having a cutter-receiving aperture extending through the sleeve, a cutting element, and a rotation restriction element. The cutting element may include a first plurality of retention elements extending substantially radially from an outer surface of the cutting element and engaging the sleeve to retain the cutting element within the sleeve. The rotation restriction element may be coupled to the cutting element and may include a second plurality of retention elements extending axially from a bottom surface of the rotation restriction element and engaging the sleeve to restrict rotation of the cutting element within the sleeve.

Abstract: In one embodiment, an inventory storage system has a vertical stack of storage modules that extend from a first stack end to a second stack end, and are stacked on top of one another. Each storage module defines a path that forms a loop in a vertical plane, and each storage module has a plurality of inventory carriers that translate around the loop. The vertical stack has a first end section that extends from the first stack end towards the second stack end, and that includes a first end of each loop of the stack. The vertical stack also has a second end section that extends from the second stack end towards the first stack end, and that includes a second end of each loop of the stack. The sections can be transported separately by a truck or container and then coupled together at the destination.

Abstract: An image module comprising: (a) an imaging device that graphically or pictorially captures images of underwater sea life (b) a module housing including one or more components that processing an image generated by the imaging device; wherein the image module is discrete from a marine display and is capable of being connected to the marine display so that the graphic or pictorial images of underwater seal life captured by the imaging device are displayed.

Abstract: A cutting element assembly may include a support structure and a pin having a cylindrical exterior bearing surface. Retention elements may couple opposing ends of the pin to the support structure. The cutting element assembly also includes a rotatable cutting element including a table of polycrystalline hard material having an end cutting surface and a supporting substrate. The rotatable cutting element may have an interior sidewall defining a longitudinally extending through hole. The pin may be positioned within the through hole of the rotatable cutting element and may be supported on the opposing ends thereof by the support structure. Methods include drilling a subterranean formation including engaging a formation with one or more of the rotatable cutting elements.

Abstract: A vessel having a seal that is protected from the liquid material within the vessel by a volume of gas. The vessel has a partition that divides the vessel into two volume spaces such that the seal that is in gaseous communication with the first volume space is protected from the liquid material in the second volume space by a volume of gas in the first volume space.

Abstract: An earth-boring tool comprises a tool body and a cutting element assembly. The assembly comprises a cutting element including a table of polycrystalline hard material secured to a substrate. The table has a front cutting face and a central axis extending through a center of the front cutting face. The assembly also comprises a sleeve having a cavity formed therein and a central axis extending therethrough. A positioning feature and the cutting element may be disposed within the cavity. The positioning feature is configured to radially offset the central axis of the table from the central axis of the sleeve. The cutting element is rotatable about the central axis of the table within the cavity of the sleeve, and the cutting element and positioning feature are rotatable within the cavity of the sleeve such that the central axis of the table revolves about the central axis of the sleeve.

Abstract: An earth-boring tool includes a body and cutting elements rotatably mounted on the body. The earth-boring tool also includes a formation-engaging feature attached to the body and exposed at a face of the body. The formation-engaging feature may be configured to rotate about an axis of rotation responsive to frictional forces acting between the formation-engaging feature and a formation when the body moves relative to the formation. The axis of rotation of the formation-engaging feature may be oriented at an angle to an axis of rotation of the cutting elements. The formation-engaging feature may be operably coupled to the cutting elements such that rotation of the formation-engaging feature causes rotation of the cutting elements. Methods include drilling a subterranean formation including engaging a formation with the cutting elements and the formation-engaging features.

Abstract: An airline operations system, controller and method reschedules flights affected by a disruption that precludes a planned schedule for the flights. The method includes obtaining data related to a scheduled origination and a scheduled destination for each of a set of passengers scheduled on the flights, generating a passenger connection network of connections between the scheduled origination and the scheduled destination for a subset of the set of passengers, applying at least one criterion to the passenger connection network and rescheduling at least one connecting flight based on the criteria. The system and controller solves a network flow problem to reschedule a subset of connecting flights to have a delayed projected departure time. Resulting output can include the set of delayed flights along with modified projected departure times, a set of flight cancellations and a set of passengers with missed connections.

Abstract: Rotatable cutting element assemblies includes a sleeve, a centering element positioned at least partially within the sleeve, a biasing element configured to apply a force against the centering element, and a rotatable cutting element coupled to the centering element and configured to rotate relative to the sleeve. Earth-boring tools include a tool body and at least one rotatable cutting element assembly coupled to the tool body. The at least one rotatable cutting element assembly includes a sleeve fixedly coupled to the tool body, a centering element positioned at least partially within the sleeve, a rotatable cutting element coupled to the centering element, and a biasing element configured to apply a force against the centering element. Methods of forming an earth-boring tool include positioning a centering element within a sleeve, fixedly coupling the sleeve to a tool body, and coupling a rotatable cutting element to the centering element.

Abstract: An earth-boring tool is comprised of a body, blade, and cutting element assembly. The sleeve of the cutting element assembly has an interior surface that defines a cavity. A rotatable cutting element fits within the cavity secured by a threaded end cap. The rotatable cutting element is comprised of a polycrystalline hard material bonded to a supporting substrate. The polycrystalline hard material has an end cutting surface on a first end and the supporting substrate has a back surface on a second end opposite the first end. An annular ring has an upper surface in contact with the back surface of the supporting substrate and a lower surface in contact with the upper surface of the end cap. There is a spring in a void defined by an inner surface of the annular ring, the back surface of the supporting substrate, and the upper surface of the end cap.

Abstract: An aerosolization apparatus comprises a housing defining a chamber having one or more air inlets. The chamber is sized to receive a capsule which contains an aerosolizable pharmaceutical formulation. The aerosolization apparatus further comprises a puncturing mechanism within the housing. The puncturing mechanism comprises an alignment guide and a puncture member, wherein the alignment guide comprises a surface adapted to contact the capsule while the puncture member is advanced into the capsule to create an opening in the capsule. At least a portion of the surface is sloped relative to the longitudinal axis of the capsule. Alternatively or additionally, the surface may comprise one or more protrusions. An end section is associated with the housing. The end section is sized and shaped to be received in a user's mouth or nose so that the user may inhale through the end section to inhale aerosolized pharmaceutical formulation that has exited the capsule through the opening created in the capsule.

Abstract: An earth-boring tool comprising a bit-body, a blade, and a cutting element assembly. The cutting element assembly comprising a journal, a rotatable cutting element, and a retention element. The journal defines an upper cylindrical exterior surface, a first bearing surface that intersects the upper cylindrical exterior surface, and a first external groove in the upper cylindrical exterior surface. The rotatable cutting element comprises a table of polycrystalline hard material having an end cutting surface and a supporting substrate. The substrate defines a second bearing surface, a longitudinally extending blind hole having a diameter larger than the diameter of the upper cylindrical exterior surface of the journal, and a second groove in the surface of the substrate defining the blind hole. The retention element is disposed at least partially in the first groove and partially within the second groove.

Abstract: A rotatable cutter may comprise a rotatable element, a stationary element, and a releasable interface. The releasable interface may be configured to substantially inhibit rotation of the rotatable element when the rotatable element and the stationary element are at least in partial contact. An earth-boring tool may include one or more rotatable elements.

Abstract: A cutting element assembly includes a sleeve, a rotatable cutting element disposed within the sleeve, and a retention element. The sleeve and rotatable cutting element each have frustoconical surfaces. In some embodiments, a rotatable cutting element defines a first generally cylindrical surface, a second generally cylindrical surface, and an axial bearing surface opposite the end cutting surface and intersecting each of the first generally cylindrical surface and the second generally cylindrical surface. A bearing element may be disposed between an upper surface of a sleeve and a bearing surface of the rotatable cutting element. Earth-boring tools having rotating cutting elements are also disclosed.

Abstract: Rotatable elements for use with earth-boring tools include a movable element and a stationary element. The movable element and stationary element include an index positioning feature that is configured to rotate the movable element as the movable element moves between a first axial position and a second axial position.

Abstract: A rotatable element for an earth-boring tool in a subterranean borehole includes a rotatable element and a stationary element. The rotatable element and stationary element include a seal arrangement between the rotatable element and the stationary element. The seal arrangement encloses a volume that remains substantially constant as the rotatable element moves relative to the stationary element.

Abstract: Rotatable cutting elements for earth-boring tools may include a substrate and a polycrystalline, superabrasive material secured to an end of the substrate. A sleeve may be sized and shaped to circumferentially surround at least a portion of the substrate. Rollers may be sized and shaped for positioning between, and making rolling contact with, the substrate and the sleeve, the rollers configured to rotate relative to the substrate and the sleeve and to enable the substrate to rotate relative to the sleeve. The rollers may be configured to bear at least radial forces acting on the substrate and the sleeve.

Abstract: A cutting element assembly includes a rotatable cutting element, a sleeve having a cutter receiving aperture extending at least partially through the sleeve and configured to receive at least a portion of the rotatable cutting element within the cutter-receiving aperture, and a retention element rotatably coupling the rotatable cutting element to the sleeve. In some embodiments, the retention element includes a pin extending from a base portion of the sleeve and having at least one resilient portion having at least one protrusion radially extending outward. In additional embodiments, the retention element include a split ring or O-ring disposed within a groove of the rotatable cutting element. Earth-boring tools having rotating cutting elements are also disclosed.