Abstract: A tire rim protector for masking the tire rim while applying a liquid protectant to the rubber portion of the tire. The protector has a handle for maneuvering it and maintaining it in place while applying the protectant. A holder for a protectant applicator may be included on the outer surface of the protector, and a protectant applicator may be included within the holder.

Abstract: A magnetic recording head motion translation apparatus for use in head/media evaluation systems is disclosed which includes a translator base for holding a magnetic recording head over a media surface, a linear drive unit, and a cam shaped in a pattern that is proportional to the path that the magnetic recording head will follow over the surface of the media. The translator base is equipped with head loading/lifting capabilities and a cam follower bearing, which maintains contact with the cam. The linear drive unit is a stepper motor in combination with a lead screw. Cross-roller bearings are used to connect the linear drive unit to the translator base, thereby providing a stable force in the direction of the Y-axis, while allowing the translator base to move in the direction of the X-axis. The cross-roller bearings are spring loaded in the direction of the cam to force the cam follower bearing to follow the cam's pattern.

Abstract: Disclosed is a system both apparatus and method, for analyzing a breath sample (22). A transducer (24) senses the pressure, temperature and humidity of the breath sample and in response generates a breath signature signal (26). A sensor (28) detects the alcohol content of the breath sample and in response generates an alcohol signal (30). Also included is a breath reference (32), and an alcohol reference (34) which includes an alcohol threshold level (36). A first comparator (38) compares the breath signature signal with the breath reference, and in response generates either a valid signal (40) if the signals substantially match or an invalid signal (44) if the signals do not substantially match. A second comparator compares the alcohol signal with the alcohol reference, and in response generates either a passing signal or a failing signal depending on whether or not the threshold level is exceeded.

Abstract: A visual environment simulator for a viewer moving about in a device implementation space. A display screen shows the viewer images of another environment. An array of three separately positioned ultrasonic transmitters sends intermittent signals to each of three ultrasonic receivers in order to monitor the change in the spatial coordinates and the orientation angles of the viewer and/or mobile unit(s) carrying or carried by the viewer. Digital circuitry is provided for sending and receiving sonic signals in a predetermined time sequence, and for sending a cue pulse to accurately initiate the counting of the transit time for each separate sonic signal. The transit time data are processed and revised video images are shown to correspond with the change of location (3-dimensional translational displacements) and change of orientation (3-axis rotational displacements) along and about the line-of-sight of the viewer.

Abstract: An alarm locator module for use in association with a picket fence having a plurality of picket elements disposed along a tubular rail, each picket being armed with an intrusion detection device connected to a three line supervised conductive loop contained within said rail and in constant communication with the intrusion locator module. The intrusion locator module supplies voltage and current down a first line of the loop, having a plurality of resistive elements disposed in spaced apart relationship along a portion of its length. Current normally flows back up the loop via a return line to ground, unless an intrusion is detected, in which case the intrusion detection device causes a short between the first line and a second line of the loop thereby causing current to flow through the second line back to the intrusion locator device, which is capable of detecting and reporting the intrusion.

Abstract: An optical scanning device (14) receives information from a page (11) of printed text (12) via an electrooptical transducer (16) and uses that information to fill a bit map in a memory device (102). In order to track the location of the optical scanner relative to the printed page, thus facilitating entry of information into the bit map, an optical mouse (19) is included in the scanner. In accordance with another embodiment of this invention, two optical mice (19, 150) are provided on the scanner (148) to indicate not only the position of the scanner relative to the page but also the angle that the scanner is held at relative to the page. The scanner can be used in conjunction with an optical character recognition device, a photocopying device, or any of a number of other devices. In accordance with another embodiment of this invention, indicia of location (210) are placed either on a transparent sheet or a mechanical constraint (200).

Abstract: A flying platform, propelled by at least one ducted fan causing a vertically downwardly directed airstream in and through a cylindrical duct. A vane system in the duct has two mutually perpendicular pairs of diametrically opposite first vanes, each extending in from the duct rim toward the center of the duct. Each pair of first vanes provides a pair of generally vertical walls parallel to a diametral line across the duct, and they define duct passages between the pairs of vanes and define quadrants between adjacent pairs. Each first vane has an upper, fixed, rigid portion and a variable camber flap depending therefrom. A first servomotor with linkages vary the camber of each pair of flaps, so that the camber of the flaps of each pair is at all times the same amount but in opposite directions. Preferably, there are also four second vanes, one bisecting each quadrant, and a symmetric pair of spoilers is mounted on each second vane.

Abstract: An electron spin resonance spectrometer comprises a resonator arranged in a magnetic field of constant strength and high homogeneity and containing a sample. The resonator can be supplied, via a microwave bridge, with high-power microwave energy in the form of an intermittent signal. Measuring signals emitted by the resonator can be supplied to detector arrangements and signal evaluation arrangements. In order to be able to cut a pulse-shaped output signal of the microwave power amplifier off sharply at its trailing edge, the attenuator is designed as a switching stage comprising a circulator whose input is connected to the output of the microwave power amplifier. A subsequent circulator connection is wired up to a series connection comprising a microwave switching diode that can be switched via a control input and a waveguide termination, and another subsequent circulator connection is connected to the microwave bridge (FIG. 10).

Abstract: An electron spin resonance spectrometer comprises a resonator arranged in a magnetic field of constant strength and high homogeneity and containing a sample. The resonator can be supplied, via a microwave bridge, with microwave energy in the form of a continuous-wave signal (CW) or in the form of an intermittent signal (P). Measuring signals emitted by the resonator can be supplied to a detector arrangement and a signal evaluation arrangement. In order to be able to carry out individual experiments with continuous-wave signals or intermittent signals of low power or with intermittent signals of high power in arbitrary combination and with an arbitrary succession of microwave pulses, the spectrometer comprises a first channel for supplying a continuous-wave signal or an intermittent signal of small power in the mW range and a second channel for supplying an intermittent signal of high power in the W range. The channels are connected by their inputs to a common microwave source and united at their outputs.

Abstract: An improvement to a mass flow rate sensor which includes the provision of at least one mode selection plate at each of the inlet and outlet ends of the sensor. The plates are provided in addition to other tube end termination means and are configured to have predetermined stiffness characteristics (area moments of inertia) in the X, Y and Z axes. In one preferred embodiment, the mode selection plates are configured in a generally squashed H-shaped configuration in which the tube ends pass through the centers of the vertical legs of the H and the cross member of the H spans the space between the two tubes. In other embodiments, the plates are variously configured to alter the stiffness characteristics along the various axes of the mode selection plate.

Abstract: A programmable logic array device basically comprising a programmable AND gate array (FIGS. 5, 11) having addressable rows (40-45) and columns (32-38) or memory cells (30, 31) which can be individually programmed to represent logic data; an input signal receiving circuit (FIG. 9) for developing a corresponding buffered input signal; a first row driver (FIG. 10) responsive to the buffered signal and operative to cause a particular row of memory cells in an AND array (FIG. 11) to output corresponding logical product of AND-input signals, OR/NOR sensing circuitry (FIG. 12) for sensing the AND array product signals and for developing therefrom corresponding logical OR sum signals; circuit means output terminal circuitry; output switching circuitry (FIG. 14) responsive to a control signal and operative to couple either the circuit means output signal or a registered (FIG. 13) output to a device input or output terminal (FIG.

Abstract: An improved vent damper for oil or natural gas-fired hot water heaters includes a damper assembly incorporated into the exhaust duct above a hot water heater, and contains a lightweight, floating poppet closure slidably mounted on a reduced-diameter exhaust pipe. When the hot water heater's main burner is operating, hot exhaust gasses lift the floating poppet closure, and the gasses escape through the gap thereby created around its base. These exhaust gasses are then vented to the outside air via an exhaust duct. When the main burner is turned off again, the floating poppet closure falls back again to its original (closed) position, thereby blocking the exhaust duct and preventing cool room air from circulating through the heater and its central core. Pilot light exhaust gasses are able to continuously escape through the reduced-diameter exhaust pipe even when the floating poppet closure is in the closed position.

Abstract: An interior door knob for conventional lockable door latches includes a hollow knob with a cylindrical neck having conventional means for engaging and rotating the latch spindle to mechanically move the door bolt and an actuator mechanically engaging the locking mechanism of the door latch and extending through the cylindrical neck into the housing and being movable between a first and a second position. A battery, an acoustic/visual indicating means and a normally-open microswitch electrically connected in series are mounted in a component module received within the knob housing. The microswitch switches responsive to the position of the actuator for indicating when the locking mechanism of the door latch is not locked.

Abstract: A process and apparatus for qualifying a reticle, master pattern, or the like, in-situ as it is used in a system for photolithographically creating an image on a substrate, including the steps of coating a transparent substrate with a layer of transparent photoresist material, placing the coated substrate with a layer of transparent photoresist material, placing the coated substrate on a substrate supporting means, using a source of illumination in combination with a reticle, or master pattern, to create an image of the reticle, or master pattern, on the substrate, thereby exposing the photo resist coated on the surface thereof, removing the substrate from the supporting means, developing the exposed photoresist to produce a transparent patterned mask on the surface of the substrate, said patterned mask corresponding to the pattern on the reticle, or master pattern, and, in combination with the substrate, forming a monitor object, inspecting the monitor object by passing light through both the transparent mas

Abstract: An apparatus for driving and positively spacing attachments along a moving timing chain is disclosed, consisting of at least three chains or belts and means for driving the chains or belts at different speeds and/or directions relative to each other. Attachment carrying lugs are positively held between a first and second chain for a determined distance over a path defined by the first chain, an then released by the second chain to subsequently move into positive engagement between the first chain and a third chain. The speeds and directions of the chains determine the spacing of the lugs and associated attachments.

Abstract: A dual-tube Coriolis flow meter is disclosed in which each tube is formed into a loop and the loops are connected either in series or in parallel flow relationship to allow each loop to accept at least a portion of the flow in a flow line. The loops are elongated in the direction of the flow line. A drive means is disposed between the tubes at a point between the loop extremities and opposite the cross-over points of the loops. Small permanent magnets are attached to each loop to interact with the drive means to impart oppositely directed drive forces to the two loops. Sensors are positioned at the extremities of the loops and include electromagnetic sensing windings carried by the base and disposed between the loops. Pairs of small permanent magnets are carried by each loop end and create magnetic fields which are cut by arcuate portions of the windings to induce signals in the windings that are proportional to the relative motions of the loop ends.