Abstract: Injector apparatus is disclosed which includes a sealed self-contained replaceable vessel containing an ejectable material to be injected into the well-bore during well logging operations. The vessel comprises a flexible-wall, collapsible tubular-like cartridge which can be removed from the mounting apparatus in the string of logging tools and replaced with a new cartridge. Motive force apparatus pressurizes the material in the cartridge and a valve device, which is actuated by a solenoid device, controls the flow of material exiting from the cartridge. Passageways and an orifice in the mounting apparatus directs the flow of material from the valve device to the well-bore.

Abstract: Disclosed is a pipe coupling joint comprising an interference fit coupling of unthreaded pipe sections. The end of the outer pipe in a telescoped interference fit coupling is radially compressed to form a groove in the inner pipe. The crimped end is compressed into the groove to securely couple the pipe sections together. Lined pipe joints and methods and apparatus for forming the improved interference fit joint are also disclosed.

Abstract: A security apparatus for use in servicing an automatic teller machine located on an automobile service island of the sort commonly used in connection with drive through banking. The apparatus provides a protected enclosure rotatable between first and second positions with respect to the automatic teller machine housing enclosure. In the first position, the enclosure is stored out of the vehicular right of way. In the second position, the enclosure abuts the rear of the automatic teller machine housing enclosure and interconnects with such housing enclosure.

Abstract: On a motorcycle trailer having a torsion bar suspension system a torsion bar communicates a resulting torque from a fixed connection on said trailer to a fixed connection on one floating link of a dual floating link parallelogram wheel suspension strut system so that a generally downward force is exerted on the road wheel by such one floating link pivotally connected between the trailer and the road wheel with further provision for adjusting the height of such wheel by adjusting the axial orientation of the torsion bar with respect to its trailer mounting.

Abstract: Disclosed are methods and apparatus for attaching a heat sink mounted semiconductor case to a circuit board employing a stud with a flange near one end. The longer shank is threaded and at least the shorter shank or head stud is tin-plated. The stud may be swaged into a mounting hole in the heat sink and the heat sink and semiconductor case pre-assembled. The pre-assembled unit may then be mounted and soldered to the circuit board along with other circuit components.

Abstract: Disclosed are methods and apparatus for incinerating self-burning wastes by igniting the waste materials in a first chamber and limiting the supply of air in the first chamber to control the rate and temperature of combustion. The partially oxidized gasses produced in the first chamber are conducted to a second chamber through an elongated tube. Air is mixed with the partially oxidized gas in the elongated tube and the mixture ignited to complete combustion of the gasses in the tube and the second chamber. Metal wastes may be melted and recovered in the second chamber.

Abstract: The present invention provides a method and apparatus for scrambling and unscrambling television signals to prevent reception of acceptable signals by an unauthorized television receiver while maintaining the television signal recoverable by an authorized receiver. The present invention can also be used for reducing the necessary carrier signal power of a television transmitter.A transmitter (12) passes a television signal through at least one linear filter (30, 32 and 34) of the type that produces multiple time delayed signals of differing time delays.A receiver (14) receives the multiple time delayed signals from the transmitter and passes them through at least one linear filter (64, 66 and 68) to add the signals together so that one signal representative of the original is reinforced, allowing acceptable reception by an authorized viewer.In one arrangement, the linear filters are SAW devices.

Abstract: Disclosed is an optical data bus employing a passive optical coupler. The optical coupler includes a scrambler rod which is rectangular in cross section and employs solid substantially inflexible side arms which are also rectangular in cross section. The side arms include a mirrored prism to bend the light path and permit separation of the ends of the distribution side arms so that flexible fiber bundles may be attached to the ends of the distribution side arms.

Abstract: A dynamic range expander which substantially limits the amount of positive expansion without affecting the amount of negative expansion is disclosed. In one arrangement, gain reduction in the amplitude of the output signal is increased when the amplitude of the input signal decreases toward or becomes less than the noise level present in the input signal. The dynamic range expander includes a detector (24) for sensing the amplitude of the input signal and providing a variable DC signal related to the amplitude of the input signal, a control signal generator (30) and an amplifier (34) for amplifying the input signal by a gain variable responsively to the output of the control signal generator. The control signal generator includes a time averager (50) and a summer (40) for providing a second variable DC signal related to the sum of the detector output and the time averaged detector output.

Abstract: Disclosed is a container end with an integral opening apparatus which includes pull means for tearing a tab defined by a score line from the container end to form an opening. The score line is substantially U-shaped and the pull means is attached on the tab near the base of the U. Since the score line is U-shaped, the top of the U which defines one end of the tab is not severed from the container, thus the tab may be folded over the edge of the container end and maintained in a captured position out of the way of the user.

Abstract: An electrically operated roller door driving mechanism for operating a roller door comprising a reversible electrical motor fixedly mounted to one of the roller door supporting drum wheels and housed within the core of the roller door curtain, the motor and drum wheel being arranged to rotate simultaneously, and a ring gear operatively associated with said motor via a reduction gear mechanism, the ring gear being capable of being held stationary with respect to the rotating drum wheel but also being capable of rotating in unison with the drum wheel to thereby enable the roller door to be manually opened and closed in the event of a motor malfunction or power failure.

Abstract: Disclosed is a solderable stake for attaching a heat sink to a mounting board such as a circuit board or the like. The stake is a unitary body having a shank supporting a transverse base with parallel spaced apart fingers extending from the base cooperating with the base to define a channel. The stake body is tin-plated. The edge of the heat sink is inserted into the channel between the fingers and retained therein by the spring-clip action of the fingers. The assembly may be attached to the circuit board by conventional soldering simultaneously with soldering of other component leads and the like.