초록 ▼

A body support system is provided having improved static and dynamic mechanical response characteristics and improved thermal regulation. The body support system can be of a modular construction to provide mechanical response characteristics suited to a particular user or group of users, or to a par

A body support system is provided having improved static and dynamic mechanical response characteristics and improved thermal regulation. The body support system can be of a modular construction to provide mechanical response characteristics suited to a particular user or group of users, or to a particular environment or use. In one embodiment, the body support system is a seat cushion comprising a foam layer with a central region, a plurality of spaced apart vertical foam columns that define a fluid reservoir in the central region, a plurality of fluid channels in the foam layer for communicating fluid in and out of the fluid reservoir, and an elastomeric layer having resilience and flow properties, such as a viscoelastic gel, positioned above the fluid reservoir.

대표청구항 ▼

A body support system is provided having improved static and dynamic mechanical response characteristics and improved thermal regulation. The body support system can be of a modular construction to provide mechanical response characteristics suited to a particular user or group of users, or to a par

A body support system is provided having improved static and dynamic mechanical response characteristics and improved thermal regulation. The body support system can be of a modular construction to provide mechanical response characteristics suited to a particular user or group of users, or to a particular environment or use. In one embodiment, the body support system is a seat cushion comprising a foam layer with a central region, a plurality of spaced apart vertical foam columns that define a fluid reservoir in the central region, a plurality of fluid channels in the foam layer for communicating fluid in and out of the fluid reservoir, and an elastomeric layer having resilience and flow properties, such as a viscoelastic gel, positioned above the fluid reservoir. igital upstream traffic carried in at least one ramp band which is part of the reverse frequency band to digital upstream traffic carried in at least one express band which is also part of the reverse frequency band but spaced from the at least one ramp band, wherein the at least one express band transports upstream traffic data at a substantially higher data rate as compared to the at least one ramp band so that upstream traffic originating from a plurality of sources can be aggregated from the at least one ramp band into the at least one express band; and an express band transmitter for transmitting digital upstream traffic from the mapping circuitry in said at least one express band; and (c) cable modems for receiving the downstream traffic for the cable subscribers and for sending the digital upstream traffic from the cable subscribers in said at least one ramp band. 17. A communications network according to claim 16, wh