Abstract: A jack includes a main body (14) with a cavity (18). A lifting cylinder (42) is supported on the main body and is extendable into the cavity. A lock (30, 34) is movably coupled to the main body. A spring (38) is coupled to the lock and biases the lock into the cavity. A cylinder (86) is coupled to the lock and biases the lock out of the cavity against the biasing force of the spring.

Abstract: Methods, systems and apparatuses related to providing, among other things, a collaboration and travel ecosystem are discussed herein. For example, various tools and functionality may be provided that assist a client in determining the availability of telepresence equipment, the cost to use the telepresence equipment, the potential return on investment for money spent traveling as compared to conducting a telepresence event, among other things. In some embodiments, a user interface may be presented to a client that presents various information associated with, e.g., the telepresence equipment and/or facilitates the booking of the telepresence equipment. One or more backend systems may be used to, for example, coordinate the booking of a telepresence event and/or the booking of traditional travel events. In some embodiments, business rules and/or other types of data may be generated, received, maintained and/or received by the backend system(s).

Abstract: A print cylinder having a first header, a second header and a hollow cylinder body is internally piped. The first header includes an air inlet and an air outlet. The air outlet is sealingly connected to a central conduit which is sealingly attached to a disk, the disk being sealed about its perimeter to the cylinder body. The second header includes an air inlet and at least one air outlet, the air outlet being connected to a perimeter groove defined about the outer surface of the second header. Apertures are defined within the print cylinder immediately above the perimeter groove whereby an air flow continuum is created from the air inlet of the first header, through the central conduit, through the second header inlet and outlet, through the perimeter groove and through the cylinder apertures. Secondary apertures are defined within the cylinder body, each connected in an air flow continuum to the central conduit by means of secondary conduits.