Abstract: A mobile mounting device system includes at least one bracket, a male mounting plate, a female mounting plate, an attachment assembly, and a sound system component. The at least one bracket includes an interior arced surface. The male mounting plate includes a base and an elongated protrusion with a protrusion shape. The female mounting plate includes a channel with a channel shape, the channel shape including the protrusion shape and clearance room to allow the protrusion to slide into the channel. The attachment assembly is configured to detachably connect one of the male mounting plate and the female mounting plate to the tubular element with at least one bracket. The sound system component is fixedly connected to the other of the male mounting plate and the female mounting plate, and configured to fixedly and detachably attach to the vehicle through inserting the protrusion into the channel.

Abstract: A support system is provided for detachably mounting an article to a tubular support structure. The system includes a bracket plate having a key-way with side walls diverging from a front face of the bracket plate to a rear face thereof. The key-way extends entirely through the bracket plate between the front and rear faces and includes an entry mouth opening at an edge of the bracket plate. A support plate is adapted to be attached to the rear face of the bracket plate to close the key-way at the rear face. A mounting device mounts the bracket plate and attached support plate to one of the tubular members, with the key-way facing away from and extending longitudinally of the one tubular member. An elongated supporting key is adapted to be attached to the other of the tubular members lengthwise thereof.

Abstract: An article support system is provided for detachably mounting an article on a support structure. The system includes a bracket plate adapted to be attached to one of the article or the support structure. The bracket plate includes a key-way having side walls diverging from a front face of the bracket plate to a rear there thereof. The key-way extends through the bracket plate between the front and rear faces and includes an entry mouth opening at an edge of the bracket plate. A supporting key is adapted to be attached to the other of the article or the support structure. The supporting key is positionable through the entry mouth of the key-way and has side walls converging from a front face of the key to a rear face thereof for mating proximity to the diverging side walls of the key-way in the bracket plate.

Abstract: A service system for receiving and distributing electrical cable in which an appropriate conduit has an upper head end and a lower meter end. A service entrance fitting is coupled to the head end of the conduit for receiving electrical cable from the exterior thereof and for channeling the cable to the condit. A service through and distribution fitting is coupled in the conduit intermediate the ends thereof for distributing electrical cable out through a side of the fitting. The cable entrance of the service entrance fitting and the side of the service pass through and distribution fitting have mouths for receiving and directing the electrical cable. Each fitting has a dome-shaped hood which defines the respective mouth and an integral hollow depending neck for interfacing with a top of a conduit section to position the hood in covering relation over the conduit.