Abstract: A digital readout apparatus includes a housing, a plurality of members providing, respectively, a presentation of units-of-minutes, tens-of-minutes, and hours, a shaft for supporting the members within the housing for movement in rotation imparted either by a timed or manual setting input to the member of lowest order. The digital readout apparatus also includes an endshake element received on the shaft between the hours member and the housing. The endshake element includes cam structure on a side surface which cooperates with cam structure similarly contoured on the housing thereby through selective rotational adjustment of the endshake element relative to the shaft, both the hours and tens-of-minutes members are moved axially along the shaft relative to the units-of-minutes member which is fixed to the shaft for varying clearance between the members.

Abstract: A sensing apparatus functions when the pressure in a sensing chamber attains a predetermined pressure level in response to a crash environment to actuate a pressure release valve and thereby provide an output resulting in the deployment of an air bag within the confines of a vehicle for restraining forward movement of an occupant. The particular level of pressure developed in the sensing chamber relates to the velocity of flow of a fluid under the control of a sensing means movable in the sensing chamber and whose movement, in turn, is responsive to the relative velocity of a vehicle and an impacted object. The operation of the impact sensing apparatus is the resultant of a true measure of the relative velocity of the vehicle and the impacted object; and upon attainment of a velocity of flow equal to or greater than a threshold velocity the pressure release valve will be actuated.

Abstract: A circuit provides a ramp voltage for purposes of controlling simultaneously a pair of transistors from saturation to cutoff and vice versa. Means are provided for generating an electronic strike and chime tone which is connected both to an amplifier circuit and the transistor controlled to cutoff. A tuner circuit which is part of the radio to provide a radio tone likewise is connected both to the amplifier and the transistor controlled to saturation. The circuit is provided with an enabling input at an alarm time and by dissipating the tones by varying percentages as the transistors change their state, a crescendo-decrescendo action may be obtained.

Abstract: An intruder alarm security device includes a source of fluid under pressure which serves as a medium for oscillating a diaphragm at the throat of a horn to create an audible warning signal. The intruder alarm includes an actuator, a plunger assembly and connecting structure for coupling rotary movement of the actuator to longitudinal movement of the plunger assembly to open communication between the diaphragm and the source of fluid. The or connecting coupling structure includes a lost motion connection so that the plunger assembly is controlled by the actuator only to the point of opening the communication. And, the plunger assembly includes an orifice member for metering the flow of medium to the diaphragm, yet, first is capable of allowing any entrained particulate from a closure of the source to clear the device.

Abstract: The switch for timer is comprised of a single pole, double throw switch. The switch includes a plurality of contact arms, the two outer arms being substantially fixed in disposition while a center arm is capable of movement therebetween to positions of contact. A slot extends in substantially a longitudinal direction from one end of the center arm. The slot provides a demarcation between the contact carrying portion of the center arm and a portion adapted to be connected with an actuator through a spring. Movement of the actuator imparts movement to the center arm by snap action from one stable position of contact to another. However, up to the instant of a break as the actuator passes through an over center position the slot permits the contact carrying portion to maintain good contact pressure against the contact at one of the positions.

Abstract: An electrical display device in the form of a light emitting diode is included in an electrical circuit by means of a plate having a conductive surface. The diode is supported by a conductive elastomer on a terminal of said circuit and a second conductive elastomer is supported on a second terminal. The plate conductive surface is received on to span said diode and second conductive elastomer. Means are provided to maintain the conducting elements in circuit arrangement.

Abstract: An indicator flag is movable alternately into one of a plurality of display positions thereby to provide a distinguishable visual indication in each position. The indicator flag carried by a movable assembly is actuated by electromagnetic means and the movable assembly is latched in each display position. A pair of switches are associated with and controlled by the movable assembly from a normally closed to an open condition. The switches may function variously to control associated equipment or switch the electromagnetic means so that drive energy is required only during transition of the indicator flag from one of the plurality of display positions to another, among others.

Abstract: A movable switch contact of a switch for connecting in a circuit at least a pair of stationary contacts which may be the lands or terminal pads of a printed circuit on a printed circuit board includes an actuating member and a bridging portion. The actuating member is supported for movement in at least two directions and the bridging portion is attached for movement with the actuating member. The bridging portion includes a body of a deformable material having a capacity to conduct current and provide electrical continuity between the stationary contacts when the actuating member shall have been moved to a switch closed position. The actuating member may be adapted for movement toggle fashion as well as for sliding movement. Movement of the actuating member toggle fashion may be through snap action and momentarily whereby the return memory of the body causes the actuating member to return to a neutral or switch open position.

Abstract: The timing apparatus includes timer motor means having a rotatable output shaft rotatable through a revolution in a prescribed period of time, switching means adapted to be alternately switched between at least two discrete positions for respectively operating corresponding electrical output devices, indicating means operatively connected to the output shaft for movement in unison with the output shaft and for selective independent movement with respect to the output shaft in response to manual adjustment for adjustably setting the times at which the switching means will be operated to effect such switching between the electrical output devices, and actuating means operatively connected to the switching means and adapted for periodic movement between opposed first and second positions in response to displacement of the indicating means.

Abstract: A sample case assembly has a pair of open ended containers each of which is supported by one section of a two-section wheeled base member or dolly. The dolly sections are pivotally joined together and with their respective display enclosures are pivoted horizontally between open and closed positions. The containers may be hinged together on one side to form sample cases and detachably connected to the dolly. A plurality of sample cases may be stacked one above the other on the dolly and aligned to pivot open simultaneously with opening of the dolly sections. A transport handle is attached to the uppermost case to facilitate mobility of the assembly.

Abstract: A binary indicator including a pair of indicator discs mounted along a common axis has means for damping rotational movement of a resetting structure in one direction following movement imparted to the resetting structure in the other direction for purposes of resetting the relative positions of the indicator discs to their relative positions prior to their relative relocation occasioned by a fault or malfunction condition. One indicator disc undergoes movement, the movement in both directions being induced magnetically. And, movement of the resetting structure in the other rotational direction is against the forces of rotational elasticity of spring means. A force for damping rotational movement of the resetting structure in the one rotational direction is developed by viscous-shear frictional engagement between a pair of friction discs biased into juxtaposition with a viscous film therebetween by the spring means under compression.

Abstract: A motor is driven in stepped fashion by a pulsed alternating output from an integrated counter circuit and a source of oscillation to drive a gear train of a clock in stepped increments. The motor includes a stator having a core with at least one pair of stator poles, a winding coupled to the core, and a rotor having permanently magnetized poles of alternately opposite polarity; while the oscillator includes a highly stable quartz crystal. The stepping motor is self starting within at least the second pulse applied across the winding and provides a unidirectional drive by provision and arrangement of a pair of extensions, one on each stator pole although on opposite sides, proximate an air gap between stator poles, within which the rotor rotates. One extension is disposed forwardly into the air gap, while the other extension is disposed rearwardly out of the air gap.

Abstract: A solid state electrical component is packaged within a housing and after connection to a terminal board is potted by an encapsulating medium. The solid state electrical component includes a chip area and a plurality of terminals connected to the chip. These terminals are connected to a terminal board which provides support for additional terminal members which extend from the housing and adapted for connection in an electrical circuit. The housing and device are supported by a frame serving as a heat sink.

Abstract: A synchronous motor includes a disc-shaped rotor, a one-piece stator, and a coil assembly including a core and a winding therearound. The stator is connected to one end of the core and includes a pair of legs, the ends of which extend along an arcuate length thereby to define stator pole faces spaced from and concentric with the axis of rotation of the rotor. The rotor is magnetized radially and presents a plurality of contiguous substantially equally sized magnetic poles of alternating polarity at an air gap. The magnetic poles are of an angular length greater than the length of the stator pole faces. The motor is received by a molded casing providing means both for locating the stator pole faces and the rotor within the stator field at the air gap. The core provides an additional stator pole face in the magnetic field of the rotor and the winding of the motor is energized either by an A.C. or a D.C. source.

Abstract: Apparatus for displaying articles is provided with a generally planar display surface having a pair of opposed parallel edge portions formed with spaced apart recesses. Each end of the article to be displayed is retained by a detachable clasp assembly which is adapted for releaseable retention within one of the edge portion recesses.