Abstract: Check valves including in situ cleaning mechanisms are shown and described. The check valves include a side wall, an opening, a disc disposed within the opening and configured to be moveable between an open position and a closed position, and a cleaning mechanism. The cleaning mechanism includes a port in the side wall configured to be coupled to a fluid source to spray fluid onto an inner surface of the side wall and the disc to clear debris from the check valve. In some examples, the port is an access port configured to be coupled to a nozzle for coupling the fluid source to the port. In some further examples, the cleaning mechanism includes a handle operatively coupled to the disc to move the disc between the open position and the closed position.

Abstract: Pick hole guards are provided for use in guarding pick holes on manhole covers. In some embodiments of the present disclosure, the pick hole guards can have a base, biasing member, and guard member. The biasing member can be attached to the base and guard member, and can bias the guard member toward a pick hole on the manhole cover to guard the pick hole. In other embodiments, the pick hole guards do not have movable guard members, but instead have retaining surfaces to serve as a receptacle for catching waste disposed through a pick hole.

Abstract: A telescoping assembly includes a rod with a recess in the rod. A first collar surrounds the rod, and a detent extends through the first collar. A second collar surrounds at least a portion of the first collar. The second collar has a locked position biasing the detent radially inward through the first collar and against the recess in the rod and an unlocked position allowing the detent to move radially outward through the first collar and away from the rod.

Abstract: A laser light generator is configured to generate one or more wavelengths of continuous wave laser light. The laser light generator is configured to collectively and simultaneously transmit each of the wavelengths of continuous wave laser light through an optical output of the laser light generator as a laser light supply. An optical fiber is connected to receive the laser light supply from the optical output of the laser light generator. An optical distribution network has an optical input connected to receive the laser light supply from the optical fiber. The optical distribution network is configured to transmit the laser light supply to each of one or more optical transceivers and/or optical sensors. The laser light generator is physically separate from each of the one or more optical transceivers and/or optical sensors.

Abstract: Mechanisms are provided for improving the efficiency of garbage collection in a deduplication system by intelligently managing storage of deduplication segments. When a duplicate segment is identified, a reference count for an already maintained segment is incremented only if the already maintained segment has the same lifecycle as the identified duplicate segment. In some instances, an already maintained segment is assumed to have the same lifecycle if it is not stale or the age is not significantly different from the age of the newly identified duplicate. If the already maintained segment is has a different lifecycle, the new segment is stored again even though duplicates are already maintained.

Abstract: Techniques and mechanisms are provided for migrating data blocks around a cluster during node addition and node deletion. Migration requires no downtime, as a newly added node is immediately operational while the data blocks are being moved. Blockmap files and deduplication dictionaries need not be updated.

Abstract: The tool re-positions a floor guide supporting a climbing screen. The climbing screen includes a mounting arm that extends along a longitudinal axis and is fixed to a floor of a construction. The tool includes a first member fixable to the floor of the construction at a first position along the axial length of the mounting arm, a second member fixable to the mounting arm at a second position spaced along the longitudinal axis of the mounting arm from the first member, and a driver linking the first and second members to one another and operable for varying the spacing between the first and second members along the longitudinal axis.

Abstract: The hoisting apparatus includes a climbing rail, which is adapted to be suspended on and translated vertically along a construction at a distance from the ground. There is an enclosure supported by the climbing rail. There is also a lifting platform that is housed within the enclosure and is vertically movable relative to the enclosure.

Abstract: Implementations described and claimed herein provide a system and methods for balancing network loads across distinct provider networks. In one implementation, a virtual network representative of at least a first provider network is established having at least one interconnection point where network traffic is exchanged between the first provider network and a second provider network and having at least one provider edge port and at least one potential interconnection point. A measurement of a bandwidth between the at least one provider edge port and the at least one interconnection point is obtained. A measurement of a distance between the at least one provider edge port and a geographically closest of the at least one potential interconnection point or the at least one interconnection point is obtained. A network load indication for the first provider network as a function of the bandwidth measurement and the distance measurement is obtained.

Abstract: Implementations described and claimed herein provide a system and methods for balancing network loads across distinct provider networks. In one implementation, a virtual network representative of at least a first provider network is established having at least one interconnection point where network traffic is exchanged between the first provider network and a second provider network and having at least one provider edge port and at least one potential interconnection point. A measurement of a bandwidth between the at least one provider edge port and the at least one interconnection point is obtained. A measurement of a distance between the at least one provider edge port and a geographically closest of the at least one potential interconnection point or the at least one interconnection point is obtained. A network load indication for the first provider network as a function of the bandwidth measurement and the distance measurement is obtained.

Abstract: Check valves including in situ cleaning mechanisms are shown and described. The check valves include a side wall, an opening, a disc disposed within the opening and configured to be moveable between an open position and a closed position, and a cleaning mechanism. The cleaning mechanism includes a port in the side wall configured to be coupled to a fluid source to spray fluid onto an inner surface of the side wall and the disc to clear debris from the check valve. In some examples, the port is an access port configured to be coupled to a nozzle for coupling the fluid source to the port. In some further examples, the cleaning mechanism includes a handle operatively coupled to the disc to move the disc between the open position and the closed position.

Abstract: Implementations described and claimed herein providing systems and methods for modeling and visualizing interconnection relationships between a first provider network and a partner. In one implementation, a partner of a provider network is defined by at least one interconnection point where network traffic may be exchanged between the provider network and the partner. An interconnection relationship is generated based on the at least one interconnection point. The interconnection relationship is modeled.

Abstract: A platform system includes a support structure of variable length; a platform mountable on the support structure; and a plurality of platform supports for supporting the platform. At least one of the platform supports is slideably mounted on the support structure such that it is slideable with respect to the support structure. At least one of the platform supports includes a spacing element, which extends between that platform support and an adjacent one of the platform supports and engages the adjacent platform support, such that the maximum spacing between those platform supports is limited by the spacing element.

Abstract: Processing video and sensor data associated with a vehicle Apparatus (5) is configured to: obtain first data corresponding to video data from a video camera (6) associated with a vehicle; obtain second data corresponding to sensor data from one or more sensors (8) associated with the vehicle; form a data structure including metadata and the first and second data, wherein first timing information for the first data is included in the metadata and second timing information for the second data is included in the second data, wherein the first and second timing information enable the first and second data to be temporally related.

Abstract: A piano training device is described herein. The piano training device comprising a plurality of keys which may be illuminated by a light source associated with each key. The light source associated with each key is oriented such that the light source transmits light toward the front surface of the key. The key is further manufactured so that the light transmitted toward the front surface of the key is redirected to the top surface of the key.

Abstract: Techniques and mechanisms are provided for migrating data blocks around a cluster during node addition and node deletion. Migration requires no downtime, as a newly added node is immediately operational while the data blocks are being moved. Blockmap files and deduplication dictionaries need not be updated.

Abstract: A system and method for cooling an environmental test chamber is described where a controller is in communication with an auxiliary cooling unit and the primary refrigeration unit. A first chamber temperature measurement associated with the environmental test chamber is received, and the heat load associated with a target temperature is determined. Based on the first chamber temperature measurement and the heat load, it is determined that the auxiliary cooling unit can sustain the target temperature. In response to the determination, the controller is used to transmit a signal to power on the auxiliary cooling unit and a signal to time out the primary refrigeration unit.

Abstract: Disclosed are various exemplary embodiments of an air cleaner assembly for a machine. The air cleaner assembly may include a filter housing and a filter element. The filter housing may include a mating surface extending in a first plane and defining a filter opening thereon. The filter housing also includes a filter engaging member associated with the mating surface. The filter element may include a filter frame extending generally in a second plane and defining an opening for receiving a filter medium. The filter element may also include a sealing member disposed in the filter frame around the opening and configured to seal around the opening when the filter frame is brought into contact with the mating surface. The filter element may further include a blade extending from the filter frame and configured to engage with the filter engaging member.