Abstract: A fluidic device housing having strain relief including an integral connector for receiving a fluid carrying tube and an integral strain relief for relieving strain on the integral connector which may be caused by the fluidic carrying tube.

Abstract: A load return mechanism is provided having an actuator for driving a load, a load adapted to be driven by the actuator, a first lever driven by the actuator, a second lever attached to the load, and an apparatus for locking the two levers together so that the load can be driven by the actuator and for unlocking the two levers to return the load to a predetermined position upon power interruption.

Abstract: A fail-safe alarm system includes a device which allows current to flow in only one direction to insure that the supervisory current in an alarm circuit is flowing in the intended direction rather than in a wrong direction caused by a miswiring.

Abstract: A system for detecting a clogged filter in a variable air volume system having a differential pressure sensor for sensing the differential pressure drop across the filter, an air flow sensor for sensing the air flow through the duct in which the filter is located, and a difference sensor connected to the differential pressure sensor and the air flow sensor to indicate when the filter is clogged.

Abstract: A data acquisition system has a plurality of input/output lines any of which may be used to receive either analog or digital signals. Furthermore, some of the input/output lines may be used to provide a voltage output and some of the input/output lines may be used to provide a current output.

Abstract: A pull station having a housing of unitary construction with integral cover and base portions, the cover portion having a handle so that the cover portion can be pulled away from the base portion when a signal, such as an alarm signal, is to be generated, a break glass holder provided on one of the portions for receiving a glass structure to be broken when the cover portion is pulled away from the base portion, a glass breaker provided on the other of the portions, the glass breaker having a camming surface to ride over the glass structure when the portions are closed and having a breaking surface for breaking the glass structure when the cover portion is pulled away from the base portion, and a signal generator for generating a signal when the cover portion is pulled.

Abstract: A system for controlling static pressure within a controlled space having an air flow sensor mounted in a hole in a wall in a controlled space for sensing the amount of air moving through the hole, a check valve associated with the air flow sensor for allowing air flow past said air flow sensor in only one direction, and an air flow controller connected to the air flow sensor and responsive thereto for controlling static pressure within the controlled space. A damper may be located in a supply duct for controlling the supply of air to the space and a second air flow sensor may be connected between the first air flow sensor and the damper and located to sense the air flowing through the supply duct so that changes in air flow in the supply duct can be controlled by the damper before such changes effect the static pressure within the controlled space.

Abstract: A sliding crank actuator for rotating an axle connectable to the actuator, the axle being provided as part of a system external to the actuator. The axle is rotatable in the external system about an axis which is located at a fixed distance from and which is perpendicular to a drive screw in the actuator.The actuator comprises a drive screw rotatable about a fixed axis and a drive nut on the drive screw. The drive nut moves along the length of the drive screw as the drive screw is rotated.The actuator further comprises a crank arm having a first member and a second member slideably innerconnected so that the first and second members slide longitudinally with respect to each other. The first member is connected to the drive nut so that the crank arm can pivot about the drive nut. The second member comprises apparatus for connecting the second member to the axle so that, as the drive nut moves along the drive screw, the axle connected to the second member is rotated.

Abstract: This invention describes a wiper system for motor vehicles in which the wiper arm is radially retracted and extended during the to-and-fro motion, so that in comparison with conventional systems an enlarged wiping area is achieved. The coupled gear for retracting and extending a slide mounted in a guide member and connected with the wiper arm is arranged outside the guide member. The coupled gear drives a shaft operatively connected with the slide, which shaft is mounted in a bore of the actual drive shaft for driving the guide member in pendulum-fashion. Thereby the overall height and the weight of the guide member is reduced.

Abstract: A light sensing compensation system is provided for controlling the level of light at a workplane so that the ratio of the light at the ceiling where the sensor means is located to the level of controlled light at the workplane is maintained substantially constant as daylight entering the room varies.

Abstract: In vehicular electric door lock arrangement the running time of a first adjusting unit is longer than the worst possible running times of the other adjusting units. The first adjusting unit operates a switching unit via which the running time of the other adjusting units is preset. The separate timing element for the control of the various adjusting units used in prior systems can be omitted, because this timing function is provided by one of the adjusting units.

Abstract: An alarm message generation and broadcast system having supervision including an alarm message generation circuit for generating an alarm message, an output for receiving the alarm message so that the alarm message can be broadcast in response to an alarm event; and a supervision circuit connected to the alarm message generation circuit and responsive to the alarm message for providing a trouble signal when the alarm message is not properly received by the supervision circuit.

Abstract: A demand limit control system for maintaining power consumption of loads within a building below an upper demand limit, the upper demand limit being separated from a lower demand limit by a deadband, the system having a power demand controller responsive to power consumption for providing a controller output signal ramping up when the power consumption is above the upper demand limit, remaining substantially constant when power consumption is between the upper and lower demand limits, and ramping down when the power consumption is below the lower demand limit, and a plurality of demand controlled loads each connected to the power demand controller and each responding to a different threshold value of the controller output signal such that each load is conditioned to turn off when the controller output signal is above the threshold and is conditioned to turn on when the controller output signal is below the threshold.

Abstract: A windshield wiper system for motor vehicles includes an electric motor which drives at least one wiper during normal wiper operation, too and fro between two reversing positions within a wiping area. When the wiper system has been switched off by means of an operating switch, the wiper is moved to a concealed parking position outside the wiping area. Upon switching on of the wiper system and during normal operation the motor runs in one direction of rotation, but for moving the wipers into the parking position the motor runs in the other direction of rotation. A position switch is changed over by a switching member coupled with a rotating drive member of the electric motor. The position switch, after the operating switch has been switched off, releases a signal for reversing the polarity and in the parking position releases a signal for switching off the electric motor.

Abstract: A pneumatic device having a housing defining at least two chambers with one of the chambers having a nozzle located therein, a diaphragm separating the two chambers, main pressure connected to one of the chambers, an output line connected to one of the chambers for providing an output signal having a value dependent upon the interaction between the nozzle and the diaphragm, and a dampening apparatus located within one of the chambers and touching the housing, the dampening apparatus being flexible for permitting movement of the diaphragm to control the output pressure in the output line and to dampen noise.

Abstract: An information reporting system is disclosed wherein a plurality of remote stations each receive synchronization signals from a master station, the synchronization signals initiating a timing mechanism in each remote station for dictating the time slot in which each remote station can transmit its information, each time slot occurring at a substantially different point in time, a master station having a synchronization generator for generating the synchronization signals and an indicator for indicating the information received from the remote stations, and a communication channel for interconnecting the remote stations and the master station.

Abstract: A steering column switch has two switching members superposed in a housing, which are swivellable about two parallel axes at least substantially diametrically opposite each other relative to a central aperture and tiltable perpendicularly to the swivelling plane. Two planar insulating plates provided with metal conductors stand perpendicularly on the swivelling plane. Each insulating plate has a free end formed as plug part and on one of these plates it is changed over when one switching member is tilted. To simplify the construction of the switch and to lower contact resistances switch contacts are also changed over on one of the two perpendicularly standing insulating plates with a tilting of the other switching member and with a swivelling of each of the two switching members.

Abstract: In accordance with the invention, to prevent a deflection system for a color picture tube provided with an in-line gun system from causing pincushion distortions in the east-west direction on the screen, at least two plane, thin field formers are provided for on the end face of the core for the vertical deflection coils. These field formers are made from a soft-magnetic material and are substantially in the shape of ring segments.

Abstract: From the digital color-difference signals (b-y, r-y), the digital flesh-tone correction circuit forms a signal corresponding to the tangent between the two color-difference signals by means of absolute-value stages, a comparator, an intermediate switch, and a divider. In a correction stage, this signal is changed into the address signal for a read-only memory which holds the sine and cosine values of a preset function within a presettable angle correction range. By suitably multiplying the sine and cosine values by the color-difference signals in a multiplier, the flesh-tone-corrected color-difference signals are produced.

Abstract: In picture-reproducing equipment with higher scanning frequencies (e.g., flicker-free television, visual display unit), the generation of the horizontal-deflection current is separated in frequency from the generation of the operating voltages by supplying the horizontal-deflection circuit from a DC voltage source which is part of the voltage power supply providing the operating voltages. The supply circuit is preferably connected to the grounded deflection capacitor. This makes it possible to influence the picture geometry in a simple manner, particularly to perform horizontal pincushion correction.