Abstract: A method of transmitting precoded signals can include precoding an optical signal to produce a precoded optical signal, transmitting a precoded optical signal over an optical portion of a first transmission channel, converting the precoded optical signal to a first MIMO signal, transmitting the first MIMO signal over a wireless portion of the first transmission channel, transmitting the precoded optical signal over an optical portion of a second transmission channel, converting the precoded optical signal to a second MIMO signal; transmitting the second MIMO signal over a wireless portion of the second transmission channel; wherein the precoding takes account of both first channel state information associated with the first transmission channel and second channel state information associated with the second transmission channel.

Abstract: The invention is comprised of a self-constructed group of identical hubs, which extends the usable battery life of all hubs in the group by forming a self-healing network that eliminates unnecessary network traffic and assures communication integrity. The group communicates with a larger system which includes a server and various administrative devices that are used to monitor the location and status of the hubs and the palletized goods. Each hub is a stand-alone device that has a processor, memory, GPS transponder, various transceiver circuits, condition indicators, and a battery. Each hub is attached to a single pallet. The hubs are each capable of communication with the server through a variety of transceivers. However, only the hub that is determined by the group to be the best, communicates with the server at any one time.

Abstract: A mechanical seal assembly has two axially-spaced apart seals and including a rotary component that includes rotational members of each axially-spaced apart seal and a stationary component that includes stationary sealing members of each seal. A sleeve is located radially inwards of the rotational sealing members. An element, such as fluid ports, directs barrier or buffer fluid towards the sleeve and between the two axially-spaced apart seals. The sleeve is provided on its outer surface with means, such as recesses or protuberances, which displace barrier/buffer fluid axially towards both axially-spaced apart seals.

Abstract: A mechanical seal component of a mechanical seal is substantially annular and includes a plurality of axially adjacent retaining recesses along its surface with each recess being adapted to accept a sealing member.

Abstract: A mechanical seal assembly has two axially-spaced apart seals and including a rotary component that includes rotational members of each axially-spaced apart seal and a stationary component that includes stationary sealing members of each seal. A sleeve is located radially inwards of the rotational sealing members. An element, such as fluid ports, directs barrier or buffer fluid towards the sleeve and between the two axially-spaced apart seals. The sleeve is provided on its outer surface with means, such as recesses or protuberances, which displace barrier/buffer fluid axially towards both axially-spaced apart seals.

Abstract: A mechanical seal includes a sleeve in sealing engagement with a rotating shaft of a piece of equipment and one or more primary or secondary sealing faces urged toward one another by a plurality of spring members. A gland detachably attached to a housing of the piece of equipment. A clamp ring is provided with one or more setting members detachably attached to the clamp ring and the gland to restrict axial and rotational movement and to render internal dimensions independent of the tolerances and assembly accuracy of the piece of equipment.

Abstract: A mechanical seal for sealing between a housing and a relatively rotating shaft includes a gland for attachment to a housing for a piece of equipment, at least one adjustable setting in the ground and extending therefrom for engaging the housing and a non-permanent device for detachably attaching the gland to the housing for a piece of equipment.

Abstract: A mechanical seal comprising; a. a sleeve which is for sealing engagement with a rotating shaft; b. one or more primary or secondary sealing faces urged toward one another via a plurality of spring members; c. a gland which is for detachable attachment to a housing of within which the seal is to be situated: d. a clamp ring wherein set screws reside to provide drive between said sleeve, clamp ring and shaft; and e. one or more setting members which are detachably attached to said clamping ring to restrict axial movement and make the internal dimensions independent of tolerances and assembly accuracy.

Abstract: A mechanical seal component of a mechanical seal is substantially annular and includes a plurality of axially adjacent retaining recesses along its surface with each recess being adapted to accept a sealing member.

Abstract: A mechanical seal comprising; a. a sleeve which is for sealing engagement with a rotating shaft; b. one or more primary or secondary sealing faces urged toward one another via a plurality of spring members; c. a gland which is for detachable attachment to a housing of within which the seal is to be situated: d. a clamp ring wherein set screws reside to provide drive between said sleeve, clamp ring and shaft; and e. one or more setting members which are detachably attached to said clamping ring to restrict axial movement and make the internal dimensions independent of tolerances and assembly accuracy.

Abstract: A mechanical seal provides sealing between a rotatable shaft and a housing. The seal has a stationary part for connection to the housing and a rotary part for rotation with the shaft. Mating sealing faces are carried by the stationary and rotary parts. At least that portion of the rotary part carrying the rotary sealing face is capable of at least limited axial movement relative to the shaft.