Abstract: A manually openable closure system for a container spout. The closure is provided with a pull tab extending below the closure and adjacent the spout surface. The closure is removable from the spout without the use of any auxiliary cutting or other tools. The closure is resilient and is provided with a top portion for sealing the spout orifice and for venting the interior of the container by being deformed by an excessive internal pressure to uncover the orifice thereby venting the interior of the container via the space between the cap and the spout.

Abstract: A railway hopper car has a hatch opening defined by its upper deck surface. A hatch cover is adapted to close the hatch opening. A hinge arrangement is connected with the upper deck surface and a locking arm extends from the hinge arrangement and across the hatch cover, being connected to the hatch cover. The hinge arrangement has a stop thereon which supports the hatch cover when it is pivoted open. The locking arm has a hatch engagement portion on the end opposite the hinge arrangement which is engaged by a latch structure connected with the upper deck surface. The latch structure includes a pivoting latch holder and latch which may be engaged with the latch engagement portion and rotated in one direction to seal the hatch cover and rotated in the opposite direction to unseal the cover.

Abstract: A process for fabricating aligned, stacked CMOS devices. Following the formation of the lower FET device, conformal undoped and doped oxide layers are formed thereover so that the level of the upper surface of the common gate electrode is above the doped oxide as formed in the source and drain regions of the lower FET device. A planarizing photoresist is then deposited and etched in conjunction with the oxide to the upper surface of the gate electrode. The exposed gate electrode is covered with a gate oxide layer, and a polycrystalline silicon layer for recrystallization to an upper FET device. Updiffusion from the residuals of doped oxide then creates an upper FET device with source and drain regions aligned to the gate oxide thereof and the underlying common gate electrode.

Abstract: A system for monitoring the attitude of an object with respect to a fixed based without any material connection to the object, comprising imaging apparatus mounted on the base so that a surface of the object is in the field of view, targets on the surface of such spaced sites, remote from the imaging apparatus that the apparatus images the targets in relative positions determined by the locations of the sites, and computing apparatus determining from changes in the relative positions of the images the causative changes in the attitude of the object with respect to the base.

Abstract: An autothrottle system for an aircraft includes a throttle lever actuator which is easily retrofitted to an existing throttle quadrant and employs a D.C. stepping motor to slew the throttle levers and eliminate the need for a feedback loop.

Abstract: A pneumatic tire (10), designed for use on a military vehicle, comprises a single carcass ply (13) of aramid cords, a pair of steel cord belt plies (14, 15), and a ground-engaging tread portion (20). The ground-engaging tread portion is characterized by a plurality of series of independent traction elements (21), each series of traction elements extending from a lateral edge (22, 23) of the tread towards another lateral edge (22, 23) of the tread along a curved path. The traction elements in each series are separated from the next adjacent traction elements of that same series by straight grooves (24), the width of the straight grooves being less than the width of the curved grooves (25) separating circumferentially adjacent series of traction elements.

Abstract: An apparatus for storing information contained in a selected digital data signal comprises a selector. A first input terminal receives an operational digital data signal when the apparatus is operating in a normal mode, a second input terminal receives a shifted test data signal when the apparatus is operating in a maintenance mode, and a third input terminal is operatively connected to a signal having a constant reset state. The selector operatively connects one of the first, second, and third input terminals to the output terminal of the selector in response to a first and second control signal. A storage element, having a clock input terminal adapted to receive a clock signal and having a reset terminal adapted to receive a reset signal, stores the state present at the selected input terminal of the selector coincident with the clock signal.

Abstract: A process for using selectively deposited tungsten in the making of ohmic contacts and contact/interconnect metallization patterns. In one form the process is employed to interconnect fully formed field effect devices using contacts through the dielectric layer. A thin layer of intrinsic polysilicon or amorphous silicon is conformally deposited, patterned and covered by selectively deposited tungsten, An anneal operation then forms self-aligned contacts or shunts, between the tungsten layer and the source/drain type diffusions exposed during the contact cut, by updiffusion through the thin intrinsic silicon, or by conversion of the thin intrinsic silicon to tungsten.

Abstract: An electrically programmable memory cell using selectively deposited tungsten on a sidewall to define a fuse region. Fabrication of the fuse structure involves only a single mask departure from standard MOSFET processing during which a selective isotropic etch of a silicon nitride sidewall structure facilitates the formation of a fuse structure comprised of a tungsten layer selectively deposited on exposed silicon and a source/drain diffusion separated by an oxide or selectively thinned oxide as the degenerating element. The actuation region of the fuse is proportional to the thickness of the selectively deposited tungsten layer.

Abstract: A depth-adjusting system for a power tool includes a housing nose portion on which is snapped a two-piece, molded plastic depth-adjusting subassembly. Each member of the subassembly engages a respective area of the nose portion. An adjustment member is rotatably connected to the nose portion, but is releasably restrained from axial movement upon engagement with a split-ring detent on the nose portion. A locator member is threadably connected inside the adjustment member, but is restained from rotating through the interaction of integral keys formed on its interior cylindrical surface with mating longitudinal keyways formed on the nose portion. Thus when the operator rotates the adjustment member, the locator member is forced to move axially forwardly or rearwardly, depending upon the direction of rotation of the adjustment member.

Abstract: Biopolymers comprising xanthomonas and methylene bis (thiocyanate) are disclosed.

Abstract: An active data bus includes a plurality of multiplex terminals serially interconnected to form a closed loop. Each terminal is capable of assuming either a relay configuration wherein data received from a preceding terminal are retransmitted to a succeeding terminal or a transmit access configuration wherein the loop is opened at the terminal and locally-generated data are introduced therein. Each terminal is capable of functioning either in a diagnostic mode whereby system access is obtained by programmed action of the terminal's control microprocessor or in a user access mode whereby access is obtained without microprocessor action by virtue of hardware "capturing" an access window bit introduced by the last-accessing terminal. The last-accessing terminal functions to close the loop after introducing its data and before the access window has completely traversed the system. The access window is thereupon "trapped" on the closed loop and circulates until it is "captured" by the next accessing terminal.

Abstract: An interactive system (10) for facilitating assembly of fuel rods into nuclear fuel assemblies having specific grid location requirements for the fuel rods, includes an operator work station (12) adapted for positioning between a supply of fuel rods and a fuel assembly loading magazine (22). Identifying data with each fuel rod is read by the operator with a manual scanner (24) for input and comparison by a computer (28) with the stored data for the particular fuel assembly to be assembled. The proper grid location for the fuel rod is then displayed on a screen (32) prompting the operator to insert the rod through a prompter/detector apparatus (36) mounted on one end of the magazine. In the preferred embodiment, the apparatus (36) includes a pair of motorized, slotted guide bars (54, 56) controlled by the computer (28) to intersect over the proper grid location for the particular fuel rod type.

Abstract: The hatch of a cargo vessel, such as the hopper of a covered hopper car, is sealed by a hatch cover having a locking arrangement which prevents the hatch cover from being blown open by pressure within the hopper upon unlocking the lock. An over center locking arm has two locking detents on it which coact with two locking detents on a locking bar to selectively provide a sealed, pressure blow off and hatch open position. A rotative adjustment is provided to enable the sealing pressure of the hatch cover on the hatch to be selectively adjustable.

Abstract: A sensor-integrator circuit having a sensor for producing a current varying in accordance with the sensed parameter or a reference current source, a comparator having inverting and noninverting inputs and an output and charge storage device coupled to the inverting input. The circuit is energized to obtain a given positive steady state reset voltage, a reference voltage is applied to the noninverting input of a comparator which is less positive than the steady state voltage and integration is initiated solely by alternately applying the current from the sensor and the reference current to the inverting input of the comparator.

Abstract: A fluid valve system (10) is provided to control fluid flow passing from a conduit passage (12). The valve system (10) includes a movable closure (20) which is reversibly displaceable in a transverse direction (22) passing in a direction substantially normal to the fluid flow passing in a longitudinal direction (14). The movable closure (20) is insertable within the conduit passage (12) in order to block or cut off the fluid flow passing through aligned conduits (16 and 18). The valve system (10) includes a pair of resilient sealing mechanisms (34) which provide for substantially planar second sealing base members (46) for resiliently contacting opposing surfaces (48 and 50) of movable closure (20). Additionally, there is provided a biasing mechanism (56) for resiliently biasing the second sealing base members (46) into contiguous contact with surfaces (48 and 50) of movable closure (20) over an extended area.

Abstract: In cases where the reference signal pulses supplied to one input of the phase detector of a phase-locked loop (PLL) may shift in phase significantly, the PLL may not be able to lock-in quickly enough to the apparent input pulse frequency change. In video monitor circuits where digital counters are clocked by the output frequency of the PLL, for example, the momentary loss of synchronism can cause horizontal scanning of the monitor screen to start too early or too late. A circuit is provided that lets the PLL make normal phase and frequency adjustments during a predetermined period during which counter reset is disabled. The circuit provides a window before and after this period during which counter reset is enabled. A reference pulse with a substantial phase error falls within the window. If three conditions are met, namely, the Reset Enable window exists, the reference pulse occurred within the window and the scan is near the bottom of the monitor screen, then a counter reset to zero signal is produced.

Abstract: A rotor assembly 22 for a gas turbine engine is disclosed. The engine has a compression section 12 and a turbine section 16. Various construction details which enable the modular disassembly of the turbine section are developed. The rotor assembly includes a rotor shaft 42 extending between the compression section and the turbine section. An annular shaft 66 engages a bearing 64, is joined to a rotor blade assembly 74, and rotatably supports the rotor shaft 42.

Abstract: The addition of small amounts of selected polyamides or polyesters to plasticized, melt extrudable polyvinyl alcohol homopolymer provides a composition with lower permeability to oxygen and other fixed gases.

Abstract: The wheel and axle assembly of a single axle wheel truck for a railway car is prevented from exceeding acceptable lateral and longitudinal movement with respect to fixed body portions of the railway car by an axle stop arrangement positioned laterally outboard of the wheel truck springs. This axle stop arrangement controls the wheel set movement relative to the car body and, due to its laterally outboard positioning, engagement between the axle stop structure and the wheels is prevented.