Abstract: Fiber-optic cable is wound on a cylindrical bobbin without adhesive and is situated in the vehicle so that the cable, attached to a relatively stationary control computer station, is pulled freely off of the bobbin as the vehicle, such as a missile or torpedo, travels rapidly away from the station. In one embodiment, a propulsion engine is located within the hollow interior of the bobbin and the cable flows outwardly in a helix around the plume of the engine.

Abstract: A permanent magnet generator or motor having stationary coils positioned in a circle, a rotor on which are mounted permanent magnets grouped in sectors and positioned to move adjacent said coils, and a carousel carrying corresponding groups of permanent magnets through the centers of said coils, the carousel moving with the rotor by virtue of its being magnetically coupled therewith.

Abstract: A two-stage energy conversion apparatus operating on a nonpolluting fuel. A single-cylinder reciprocating engine converts combustion energy to mechanical energy. Mechanical energy developed in the reciprocating engine is transmitted or coupled to a turbine by means of a transmission fluid flowing in a closed loop system interconnecting the reciprocating engine and the turbine.

Abstract: A self-latching tie-down or bolt-down anchor for use in securing loads to open truck beds. The anchor is intended for installation in the cavity commonly provided in the bed or side wall of a pickup truck to receive the lower end of the support post of a rack.

Abstract: A directional coupler for an optical communications system of the type utilizing non-collimated optical beams transmitted by waveguides. The coupler includes an input waveguide, a network waveguide, and a detector port, and has a beam-directing surface positioned between the input waveguide and the network waveguide. The beam-directing surface defines an opening aligned with and adjacent to the input waveguide, and a beam conducting medium fills the space between the two waveguides. Input optical beams are transmitted from the input waveguide through the opening to the network waveguide, and output optical beams are transmitted from the network waveguide to the beam-directing surface. The core area of the network waveguide is large relative to the opening, and the output optical beam expands as it travels through the conducting medium to the directing surface.

Abstract: Symmetrical and asymmetrical T couplers utilizing a notched fiber. A mirrored surface applied to the sides of the notch and a perpendicularly disposed second fiber provide power division from one of the three ports of the T coupler to the remaining two ports without bifurcations.

Abstract: A coupler utilizing a repeater. Dedicated transmit and receive lines interconnect transmitters and receivers with the data bus and, receive lines from other hybrid lines are optically isolated by approximately 23 db from the receiver in the repeater by first and second mixers, isolation of the receiver from signals originating from other couplers preventing race conditions. Power equalization is inherent since signals from other couplers are received at nearly the same signal level as signals from local transmitters, repeater transmitter levels being adjustable for compensation for any small difference occurring due to coupler power splitting and line losses.

Abstract: A coupler utilizing a repeater. Dedicated transmit and receive lines interconnect transmitters and receivers with the data bus and, receive lines from other hybrid lines are optically isolated by approximately 23 db from the receiver in the repeater by first and second mixers, isolation of the receiver from signals originating from other couplers preventing race conditions. Power equalization is inherent since signals from other couplers are received at nearly the same signal level as signals from local transmitters, repeater transmitter levels being adjustable for compensation for any small difference occurring due to coupler power splitting and line losses.

Abstract: A coupler utilizing a repeater. Dedicated transmit and receive lines interconnect transmitters and receivers with the data bus and, receive lines from other hybrid lines are optically isolated by approximately 23 db from the receiver in the repeater by first and second mixers, isolation of the receiver from signals originating from other couplers preventing race conditions. Power equalization is inherent since signals from other couplers are received at nearly the same signal level as signals from local transmitters, repeater transmitter levels being adjustable for compensation for any small difference occurring due to coupler power splitting and line losses.

Abstract: A solar collector platform movable about two mutually perpendicular axes through the action of two drive motors controlled by a simple and inexpensive light sensing control circuit.

Abstract: An apparatus for controlling the attenuation of optical coupling between remote terminals or ports on the same optical coupler. The attenuator employed is a partially reflecting mirrored surface located on the end of a mixing block with a portion of one surface of the mirror coated with an attenuation material. In an alternate embodiment, the attenuator is a mirrored surface separated from a mixing rod by a selectively variable distance.