Abstract: A method allows the transmitter to change transmission to a better channel in order to minimize transfer interference. In general, the transmitter will monitor all RF channels and tag the data frames with a preferred channel ID. Upon reception of a tag within a given data frame indicating a change in preferred transmission channel, the receiver will commence listening on the new channel. To avoid transmission lapses, the transmitter may continue to transmit on the old channel for a predetermined amount of time or number of data frames to allow the receiver enough time to switch channels without losing any frames.

Abstract: An electrical cable for use in a downhole application is provided. The cable includes an elongated support layer and an array of insulated conductors bonded to said elongated support layer. The elongated support layer substantially bears a weight of the conductors.

Abstract: An electrical cable for use in a downhole application is provided. The cable includes an elongated support layer and an array of insulated conductors bonded to said elongated support layer. The elongated support layer substantially bears a weight of the conductors.

Abstract: The appliance comprises a portable and electrical self-contained assembly comprising a case of plastics material defining a housing in which there are disposed an instant steam generator operating at atmospheric pressure with a porous water storage body and electrical heater resistance elements, and a steam distributor for diffusing steam through a series of front orifices. The case is extended by a squeegee carrier fitted with a squeegee blade projecting from the front of the appliance.