32results about How to "Reduces size and cost" patented technology

A multimode voltage regulator circuit includes a linear regulator sub-circuit configured to supply current to a load in a low-current mode, responsive to a first control signal from a first control path, as well as a switching regulator sub-circuit configured to supply current to the load in a high-current mode, responsive to a second control signal from a second control path. The circuit further comprises a shared error amplifier configured to generate an error signal based on the difference between a reference voltage and a feedback signal coupled from the load, and a switch configured to selectively route the error signal to the first control path in the low-current mode and to the second control path in the high-current mode.

Reflective WSS-based mesh nodes of degree N (i.e., nodes having N ports, where 3<=N<=6) are connected to provide a multiple wavelength channel signal with reciprocal connectivity between the N node ports. The WSS-based mesh nodes of degrees 3 and 4 are implemented using a reflective 1×K WSS, where K is at least equal to 3N-6. Also described are a partitioned degree-4 mesh node and a two-dimensional degree-4 mesh node. For degree-4 mesh nodes, one or more 1×2 directional couplers are used. The degree-5 and -6 nodes are designed by enforcing a symmetric demand constraint and require five 1×4 WSSs and six 1×5 WSSs, respectively. The WSS based degree-3 to -6 mesh nodes offer reduced size and cost.

A passive optical star coupler, and associated method of operation arranged to transmit signals received at any input port to all output ports other than an output port associated with the input port. In this way all received signals are broadcast to all connected network equipment with the exception of the transmitting equipment.

The invention relates to an improved rod pushing and pulling machine suited for use in underground pipe bursting and replacement with a rod string wherein each rod has at least one radially enlarged upset thereon. The machine includes a housing or frame having a pair of side walls and a front wall with an access opening therein through which a rod string can extend. At least one main thrust cylinder is mounted on the housing. A ratchet block mechanism driven by the main thrust cylinder includes a pivoting pawl and a reversible stop mechanism that permits the pawl to swing out of the way of an upset on a rod as the ratchet block mechanism moves along the rod in one direction, but forces the pawl to engage the upset to drive the rod string when the ratchet block mechanism moves along the rod in the other direction. A bungee vise is mounted on the housing behind the ratchet block mechanism, the bungee vise having a pair of jaws and an actuator that causes the jaws to engage the rod string and hold it against longitudinal movement when the rod string is not engaged by the ratchet block mechanism, and disengage when the rod string is engaged by the ratchet block mechanism.

An electrodeless lamp (10a), wherein the lamp comprises a closed-loop, tubular lamp envelope (13) with parallel cylindrical glass tubes (14a 16a) containing an arc generating and sustaining medium, means (20a) in the form of magnetic toroids for energizing the medium; and a reflector coating (22) associated with the envelope (13) and affixed thereto. In a preferred embodiment of the invention the reflector coating (22) is on the internal surface (24) of the envelope and comprises a layer of a reflective m, such as alumina. Alternatively, the reflective coating (22) can be applied to the external surface of the envelope.

A shell-and-tube stripper for carbamate decomposition and ammonia recovery from a urea solution comprising a bundle of heated tubes, said tubes being fed with said urea solution and carbon dioxide as stripping medium, the urea solutions forming a liquid falling film on the internal surface of the tubes and the carbon dioxide forming a counter-current gaseous flow; said tubes comprise an external layer made of super austenitic or super duplex stainless steel and an internal layer made of zirconium, said internal layer reaching temperatures higher than 220° C.