Abstract: Preferred embodiments of a radio-frequency and electrical power distribution duct are implemented with high-definition multimedia interface HDMI receptacles to deliver high-bandwidth digital signals to multiple signal receivers.

Abstract: A shoe tree assembly includes a shoe tree and an electrically operated disinfecting device such as an ultraviolet light emitting lamp. The shoe tree is inserted in a shoe and the disinfecting lamp inhibits the growth of fungi and other microorganisms, particularly those which cause athlete's foot or unpleasant odor. A control box for operating the lamp can include a timer and ballast.

Abstract: A method and apparatus is disclosed for retrofitting a plurality of adjacent incandescent lighting fixtures for fluorescent service. The method involves the removal of existing incandescent lighting units from first and second adjacent existing lighting fixtures, the mounting of a ballast assembly on the first existing fixture, and the installation of a first fluorescent lighting unit, powered by the ballast assembly, in the first fixture. The method further involves the mounting of a second fluorescent lighting unit in the second fixture, with the second unit being powered by the ballast assembly located in the first fixture.

Abstract: A radio frequency signal and power distribution duct system includes mating interconnections permitting daisy chaining of a plurality of individual units to provide as many power and radio frequency signal outlets as desired. Three types of units, types A, B, and C are contemplated. Type A units receive power and signal from external sources. Type B units receive power and signal from type A units, and permit daisy chaining additional type B or type C units. Type C units connect to type A or type B units but do not provide for further daisy chaining. External connection of radio frequency signals in type A and type B units is performed through internal one-eighth wavelength coaxial cables, whereby, when a type A and a type B unit are connected together, the total length of connecting coaxial cable is one-quarter wavelength. An external termination may be connected to a type A or type B unit at the end of a daisy chain. An internal termination is connected to the last coaxial Tee in a type C unit.

Abstract: A lighting fixture and lamp mount therefor for use with lamps having prong-type connectors projecting from the back or side of the lamps which includes a lamp housing, a socket carried by the housing and a lamp carrier, the lamp carrier having a threaded connector connected to the lamp so that the lamp and lamp carrier can be screwed into the socket to energize the lamp and can be readily removed for lamp replacement.

Abstract: A radio frequency signal and power distribution duct for operation of a plurality of radio and television receivers which includes a dual compartment duct with spaced electric receptacles in one compartment and spaced interconnected matching and isolating networks in the other compartment. The ducts are arranged to be interconnected in end to end relationship and each duct is provided with a central ridged channel to engage cover holding machine screws at any point along the length thereof.

Abstract: A vertical indicia displaying and electric energy supply column which includes a tubular column, a light fixture carried by the column and which is formed at least in part of a light transmitting material having indicia thereon. Electric wiring for the light fixture as well as energy supplying and communication outlets on the column is positioned within the column and partitions are provided to physically and electrically isolate the communication wiring from the wiring for the light fixture and the energy supplying outlet.