Abstract: A collapsible stock which includes a stock body having a buffer tube holder, a firearm buffer tube slidingly mounted in the buffer tube holder, the stock body being arranged for linear reciprocating motion relative to the buffer tube during firing of the firearm, a recoil absorbing mechanism mounted inside the stock body and affixed to the buffer tube, and a locking pin mounted through the stock body and affixed to the buffer tube, the stock body being arranged for motion relative to the locking pin during firing of the firearm.

Abstract: A backhaul network for a mobile wireless network including a plurality of nodes forming links, the links utilizing a 1:n frequency re-use scheme in backhaul communication, where n equals 2 to about 16, wherein each link communicates over a different portion of an entire bandwidth of the network.

Abstract: A method and point-to-point link for providing point-to-point wireless communication between a first and second node forming a link, the method including providing multiple concurrent transmissions from multiple antennas in an antenna array arrangement in the first node, controlling beam patterns of the antennas to manage deployment interference, and periodically allocating 1 to 3 MIMO (Multiple In Multiple Out) streams to different antennas in said antenna arrangement.

Abstract: A damper mechanism for isolating vibrations from a vacuum pump constructed and adapted for coupling to a vacuum chamber, the damper mechanism including an elastomeric material, preferably an elastomer diaphragm, coupled between the pump and the vacuum chamber so as to permit the pump to move in six degrees of freedom, while transferring minimum force to the chamber.

Abstract: A method for slowing the heat transfer rate to a flow facing part of an object exposed to a high total enthalpy fluid flow flowing in a direction approximately perpendicular to that part, including the step of recessing that part. There is also provided apparatus for protecting a heat sensitive instrument (26) in an object (20) from a high enthalpy fluid flow impinging on the instrument in flow facing relationship, and to which the instrument must be exposed due to the nature of its desired functioning, including an essentially unvented recess (22) defined in or near the tip or the leading edge of the object, the instrument being disposed in the recess.