Abstract: The invention relates to a method of controlling the performance of a motor vehicle in which the forces acting upon wheels and tires are detected by wheel force or tire sensors and are used as controlled variable(s) for an automotive servo-system, such as ABS, TCS, EMB etc. The variables are referred to determine and/or modulate the brake pressure in the wheel brakes of the wheels and/or the drive torque. The aim of the invention is to provide a method of controlling the performance of a motor vehicle which allows to optimize the influence on the movement of the vehicle. To this end, the working point and/or the operative range of the controlled variable(s) is adjusted using the detected wheel slippage.

Abstract: A configurable enclosure covers a computer for use in an office setting and can be removed for use of the computer in a rack-mount setting. The enclosure may be constructed using one identical panel in two places. The two panels releasably engage opposite sides of the computer to form a shell assembly. The shell may be taller and wider than the computer to establish air cavities that are in fluid communication with ambient air for cooling purposes. The panels are releasably attached by hooks that engage holes on the computer. Resilient catches secure the panels once the hooks are engaged. The assembly may be placed on its side in a pedestal. Tabs on the back and protrusions on the sides of the assembly secure it in the pedestal. An access panel of the computer may be removed while leaving the panels of the shell assembly attached.

Abstract: A chassis for use in housing heavy electrical equipment is provided with lifting devices for attachment of the chassis to a telescoping rail assembly, such as may be found on a conventional EIA equipment rack. The chassis includes a housing with a sidewall having a recessed wall to which handles and support brackets are permanently attached. The handles are hingedly connected to the recessed wall and may be pivoted over an arc between an extended position that is suitable for lifting operations and a retracted position adjacent the recessed wall. The support brackets may be selectively rotated between an assembly position that supports the chassis atop the telescoping rail assembly and a position of normal use that does not interfere with depthwise extensile and de-extensile motion of the telescoping rail assembly and chassis.

Abstract: A garment holding device for providing additional storage space on a closet door. The garment holding device includes a housing having a back wall, and a peripheral wall extending away from and attached to the back wall. The peripheral wall has an outer edge defining an opening into the housing. The back wall has a generally rectangular shape such that the peripheral wall includes a pair of lateral sides, a top side and a bottom side. A door is hingedly coupled to a first of the lateral sides of the peripheral wall and is selectively positioned between a closed position generally covering the opening in the housing and an open position. A pair of hinges is attached to the back wall and is positioned generally adjacent to the first side wall. Each of the hinges is attached to a vertical wall for hingedly coupling the housing to the vertical wall.

Abstract: A transmitter apparatus and method for use in a spread spectrum data communications system that utilizes the Differential Code Shift Keying (DCSK) or non-differential Code Shift Keying (CSK) modulation technique. The transmitter transmits data in the form of packets to the receiver. Each packet is consists of a header, one or more data symbols followed by a CRC checksum. The preamble comprises a sequence of one or more zero rotated symbols and one or more predetermined non-zero rotated symbols. In one embodiment, a shift index is calculated based on the input data. The shift index is used to form the address in a PN sample ROM. The PN sequence is read out using a counter of length modulo the PN sequence length. Samples of the PN sequence are read out and input to a Manchester encoder whose output is amplified and filtered to obtain a particular spectrum shape. In a second embodiment, the shift index is loaded into a counter and used as a starting address to address the PN sample ROM.

Abstract: The invention relates to an ink cartridge wherein a remaining amount of ink can be detected using an optical sensor. The ink cartridge has a window, for detection of an ink remaining amount, that is inclined at a predetermined angle with respect to the vertical direction. Inside of the ink cartridge, a preventive member is vertically provided. When the ink level is up to the window, light irradiated from the optical sensor permeates the window. Then, the light passes through the ink and reaches the preventive member. Preferably, the window is inclined approximately 20 degrees with respect to the preventive member. Accordingly, an incident angle of the light that has reached the preventive member is different from an incident angle of the light to the window. Thus, most of the light that has reached the preventive member is absorbed or is reflected by the preventive member in a direction different from the incident direction, so that the light reflected toward the optical sensor can be restricted.

Abstract: An n-bit serial shift register in an ink jet print head operates in a print mode or a test mode. When the shift register is operating in the print mode, n bits of print data are serially scanned into n number of bit registers and are then latched out to heater addressing logic circuitry in the print head to control a print operation. When the circuit is operating in the test mode, x bits of test point data from x number of test nodes in the print head are loaded in parallel into x number of the n number of bit registers, and are then serially scanned out to a test data output. In this manner, a single shift register may be used to scan in print data and scan out test data, thereby providing observability and controllability of the internal logic nodes of the print head while minimizing logic size and the number of input/output connections on the print head.

Abstract: A printing head has a plurality of heater boards, each of which includes a shift register to which printing data and selection data for selecting preheating pulse signals are applied as inputs, a latch circuit for latching the printing data, a selection-data latch circuit for latching the selection data, a selection circuit for selecting any one of a plurality of preheating pulse signals inputted in accordance with the latched selection data, and a plurality of heating resistors driven by the printing data or preheating pulse signals. Correction data, obtained by a head correcting apparatus, for performing printing at an average density by correcting the characteristics of each heater board is stored in a memory of the printing head. A printing apparatus decides the selection data in accordance with the correction data and sets the selection data in the selection-data latch circuit.

Abstract: An ink-jet head having a plurality of discharge openings for discharging ink therefrom, and an ink chamber which communicates with the discharge openings is driven so as to achieve stable ink discharging operation, by preventing meniscus vibration caused by resonance of the meniscus surface of the ink at the discharging openings in response to the pressure wave which is produced in the ink chamber due to changes in pressure in the ink chamber resulting from the ink discharging operation. More specifically, the driving timing of the ink-jet head is adjusted in a time division manner within a predetermined driving period.

Abstract: An ink jet printing method comprising forming an ink image directly on a printing medium according to image data signals and fixing the image to obtain printed matter, in which tone reproduction is based on conversion of density levels of the image data into sizes of ink dots, wherein a tone conversion table is prepared based on at least five characteristic curves representing the relationship of tone values versus energy for forming the ink dots, at least three characteristics curves are prepared each at a prescribed tone value in the half tone range, each having a converted energy value other than the maximum and minimum converted energy values, and the number of dots the converted energy for which is substantially the minimum is a half or more than a half of the total number of the dots at a tone value that is the least of tone values having a dot the converted energy for which is substantially the maximum.

Abstract: A system and method for detecting an error in data received from a memory of a replaceable printer component includes providing a first parity bit associated with a first data item. The first data item and the first parity bit are stored in the memory. The printer includes a plurality of electrically conductive lines. The memory includes a plurality of bits. At least one of the electrically conductive lines is associated with each bit. The first data item and the first parity bit are read from the memory. An electrical test of at least one of the electrically conductive lines is performed. An error in the first data item is identified based on the first parity bit read from the memory and the electrical test.

Abstract: A printhead alignment sensor for an ink jet printer includes two terminals defining a substantially linear gap therebetween. An ink support device supports ink in the gap between the terminals. An electrical measuring device detects a change in an electrical resistance between the terminals when ink is supported in the gap by the ink support device.

Abstract: A method of controlling an image processing condition comprises: a first step of inputting a first test image on a recording sheet, and performing first calibration that determines an image processing condition based on a density of the first test image; a second step of automatically forming a second test image, measuring a density thereof, and performing second calibration that determines the image processing condition based on the measured density, a third step of receiving the image processing condition, calibrating the received condition and an engine characteristic at first calibration time, and storing a calibrated result, and a fourth step of correcting, at the second calibration and the image processing condition storage, the stored condition based on the calibrated and stored engine characteristic and the measured engine characteristic. Thus, a printing characteristic can be stabilized as a user's load is reduced by combining plural calibrations.

Abstract: The present invention provides an image forming apparatus having a fiducial reference point sensor that individually monitors the position of first and second fiducial reference points on a moving print device that are in spaced relation to one another.

Abstract: An ink jet recording head is provided with a nozzle formation face on which nozzles for ejecting ink drops in accordance with print data are formed. A capping member for sealing the nozzle formation face has an inner space formed with a bottom. An ink absorbing member is provided on the bottom of the inner space. In a first flushing mode, ink drops are ejected into the capping member in a state that the nozzle formation face is sealed by the capping member. In a second flushing mode, ink drops are ejected into the capping member in a state that the capping member is separated from the nozzle formation face. Either the first flushing mode or the second flushing mode is selectively performed.

Abstract: The invention includes a suction cap that does not retain ink therein. The suction cap includes a cap member having a recess and a suction opening formed therein and a capillary force generating member disposed in the recess. When a recovery operation is performed for ink ejection using the suction cap, ink sucked from a nozzle flows downwardly from a tilt surface of the recess due to gravity and a suction force applied through the suction opening. The ink impinges a side face of a projection of the capillary force generating member, flowing into defined narrow spaces, due to the action of capillary force of the ink, and flowing toward the suction opening. The ink in the defined narrow spaces is discharged by the suction force applied through the suction opening to outside the suction cap.

Abstract: A method for increasing the waste ink storage capacity in an ink jet printer includes the steps of providing a printer frame including a first frame portion and a second frame portion; providing a platen extending between the first frame portion and the second frame portion; providing a maintenance station coupled to the first frame portion; providing a printhead carrier for carrying a first printhead and a second printhead, and adapted for reciprocating movement along a carrier path, the carrier path extending over the first frame portion and the platen; defining a first ink spit area located at the maintenance station; defining a second ink spit area located at the platen; and selectively controlling an operation of the first printhead during spitting operations to eject a first ink in the first ink spit area and selectively controlling an operation of the second printhead during spitting operations to eject a second ink in the second ink spit area.

Abstract: A method of color printing with an ink jet printer having a printhead which is reciprocatingly moved in forward and return scan passes in a main scanning direction, in which an even number of nozzle arrays is provided for each of at least two colors, and said nozzle arrays are symmetrically arranged in the main scanning direction, wherein, for printing a single pixel composed of at least two colors with high density, ink dots of each of these colors are formed in even numbers by activating the corresponding nozzles of the symmetrically arranged arrays at appropriate timings in the same scan pass of the printhead.

Abstract: A heater chip for use in an inkjet printer which includes a single conductive layer to provide electrical connectivity between power and ground inputs. Wherein the unique power distribution architecture is possible by the formation of a plurality of ink vias in the heater chip which provides for an increase in the chip surface area available for electrical connectivity.

Abstract: In the electrode pads in the ink jet print head substrate that uses ball bumps, bonding of the ball bumps is carried out in satisfactory condition despite reduced thickness of films in the substrate. In an ink jet print head substrate, which has a heater film constituting the heater portions, a second electric wire in electrical contact with the heater film to supply it with electric power, and a first electric wire constituting a common electrode of a matrix wire for selectively driving the heater portions, the first electric wire is used as the electrode pads to which the ball bump is joined. The first electric wire does not need to be reduced in thickness even when the thickness of the protective film is reduced. Thus, an ultrasonic wave can be transferred well to the electrode pad during ultrasonic bonding.

Abstract: An ink jet recording head comprises a nozzle forming member provided with a plurality of nozzle orifices for jetting ink, a channel forming substrate provided with a plurality of pressure generating chambers communicated with the associated nozzle orifices, one face of which is bonded to the nozzle forming member, a plurality of piezoelectric elements provided on an face of the channel forming substrate which is opposed to the face bonded to the nozzle forming substrate for causing pressure change to occur in the associated pressure generating chambers, and a reservoir forming member bonded to the face of the channel forming substrate on which the piezoelectric elements are provided, the reservoir forming member having a reservoir section forming at least a part of a reservoir communicated with the pressure generating chambers for supplying ink thereto and a piezoelectric element holding section for defining a space in an area facing the piezoelectric elements such an extent that motion of the respective piez

Abstract: An ink jet print head assembly includes at least one elongate ink jet print head chip that is the product of an integrated circuit fabrication technique. The assembly also includes at least one corresponding ink jet print head chip carrier that defines an elongate recess having a pair of opposed side walls. The, or each, print head chip is received in one respective recess. The, or each, ink jet print head chip and said respective recess are dimensioned so that a gap is defined between the, or each, ink jet print head chip and each side wall. Resiliently deformable material is positioned in each gap to retain the, or each, print head chip in position in said respective recess.

Abstract: A pressure control device installed inside an ink reservoir. The ink reservoir further includes a pressure regulator. The pressure control device at least includes a nozzle stand, a plugging block and a spring-loaded structure. The nozzle stand is attached to the bottom wall of the ink reservoir. The nozzle stand further includes a nozzle hole for linking up the interior of the ink reservoir with the exterior. The nozzle stand has a groove near the upper end of the nozzle. The plugging block is placed inside the groove for partitioning the interior of the ink reservoir from the exterior. The spring-loaded structure has a first section and a second section that connect with each other. The first section presses against the outer edge of the plugging block with an elastic force. The pressure regulator pushes the second section and lifts the first section away from the outer edge of the plugging block.

Abstract: Copper salts and copper organic complexes are added to thermal inkjet inks, to deliver copper to a resistor surface where the copper ion aids in removal of koga.

Abstract: Frames for ready reader eyeglasses are provided which include a permanent magnet protruding forwardly from the front frames adjacent each lense making the eyeglasses removably attachable to any ferromagnetic surface for temporary storage. A ferromagnetic strip is adhesively affixable to non-ferromagnetic surfaces such as computer monitors to allow attachment of the eyeglasses. A rigid carrying case with pocket clip protects the eyeglasses from damage during periods of non-use.

Abstract: The invention relates to a method and to a device for completely correcting visual defects of the human eye. The invention mentions combinations of measuring and treatment methods that allow the complete correction of defects of the human eye if applied according to the invention. Measuring methods are used that precisely detect the surface of the cornea and that also register the aberrations that occur in the beam path up to the retina. The computer-assisted evaluation of these measurement results combined with the calculation of optimally corrected lenses (for example after a cataract operation) or of optimally correcting cornea surfaces makes it possible to produce a patient-specific lens and/or to shape the retina so that it optimally corrects the aberration. To this end, the invention preferably uses a spot scanning excimer laser system and makes use of the topography of the eye.

Abstract: A method and apparatus for detecting diseases and abnormalities of a patient's eyes is disclosed. The apparatus includes an image-recording device for recording images of the patient's eyes while illuminated with infrared light and while at least two different meridians of the patient's eyes are illuminated with visible light in a time period shorter than the response time of the patient's eyes. The apparatus further includes a light source for illuminating the patient's eyes with infrared and two different meridians of the patient's eyes with visible light, and a control system for controlling the image-recording device and the light source. In one embodiment, the image-recording device includes a high-speed digital camera, the light source includes a group of infrared light-emitting diodes (LEDs) and a pair of flashes, and the control system is a computer system. The invention is useful in detecting both refractive and non-refractive errors of the eyes.

Abstract: An eye examination device includes an eye examination unit for examining or measuring an eye of an examinee; a carrying case including a first housing part for housing the eye examination unit and a base part which mounts thereon the eye examination unit; a horizontal movement unit which moves the eye examination unit in a horizontal direction with respect to the base part; and a vertical movement unit which moves the eye examination unit in a vertical direction with respect to the base part.

Abstract: An apparatus and method for measuring wavefront aberrations. The apparatus comprises a reflecting device for reflecting selected portions of the wavefront, an imaging device for capturing information related to the selected portions, and a processor for calculating aberrations of the wavefront from the captured information. The method comprises reflecting selected portions of a wavefront onto the imaging device, capturing information related to the selected portions, and processing the captured information to derive the aberrations.

Abstract: A projection type image display apparatus makes illumination light from a light source section incident on a rectangular reflection type liquid crystal display device by way of a polarization beam splitter, optically modulates the illumination light in the reflection type liquid crystal display device, and projects thus modulated light through a projection lens by way of the polarization beam splitter. A plane including the optical axis of illumination light incident on the polarization beam splitter and the optical axis of illumination light emitted from the polarization beam splitter toward the projection lens is substantially parallel to a direction in which a shorter side of the reflection type liquid crystal display device extends.

Abstract: A video signal is generated representative of a background scene, such as a weather map, which provides an outline of all the detail in the map. This outline detail is made visible to a foreground subject by projecting it onto a white screen behind the subject in a selected color such as green. The projector is selectively inhibited so as to prevent the background detail from projecting onto the foreground subject. The white screen and the green detail lines are removed and replaced by the background scene by an image compositing process. Prompts are visible to the foreground subject, but not visible to a home viewing audience.

Abstract: The invention provides an optical part mounting structure which makes it possible to easily replace an optical part including a light-modulating device (liquid crystal panel) and a prism. An optical part having a liquid crystal panel and a cross dichroic prism integrally formed with each other is secured so as to be suspended from the lower surface sides of mounting members. The mounting members are removably mounted to mounting portions at the top portion side of a lower light guide. Therefore, when the optical part is replaced along with the mounting members, it is not necessary to insert a driver that removes and re-screws a screw into the inside of the lower light guide. Consequently, it is no longer necessary to be concerned with scratching other optical parts inside the light guide with the driver, thereby making it possible to easily perform a replacement operation.

Abstract: In a rear projector for projecting an image from behind a screen, its screen size is variable. In order to permit flexible adaptation to the variation in the screen size, the projector is constructed to permit easy adjustment of a detection device for detecting an image display position or a position indicated on the screen.

Abstract: A method and system for projecting an image. An image projection system may include a sensor configured to detect the presence of an observer within a proximity of a medium, e.g., screen, window. In response to the sensor detecting the presence of an observer within a proximity of the medium, one or more portions of the medium may be switched from a transparent state to a substantially translucent state. At a substantially concurrent time as switching the one or more portions of the medium to a substantially translucent state, an image may be projected onto such portion(s). Hence, an image may be displayed in response to detecting an observer within the proximity of the medium.

Abstract: An optical component (11) comprises two transparent flat bodies (12, 13) each having grooves (16) or other surface features on one of its faces (15) which interpenetrate when the two bodies (12, 13) are placed face-to face. The shapes of the grooves (16) or other surfaces features are such that they touch in some places (20, 22, 23) and are spaced from one another in others (18, 19) to form voids (24) within the composite body (11) so formed. These cavities (24) assist in determining total internal reflection of incident light at certain angles. Composites bodies formed from two face-to face optical components may be used as daylighting screens both to direct light towards an object such as the interior of a building (through an opening) or to screen light from it by diverting it away therefrom.

Abstract: In a vehicle door mirror device, a bracket is divided into a frame and a case member. Thus, the frame and the like for a vehicle right side and for a vehicle left side can both hold a mirror at a vehicle rear side thereof. A mounting hole and a supporting hole of a case member are provided to be symmetrical with respect to a vertical plane which passes through a widthwise direction center of the case member. Thus, even if a common case member is used both for a vehicle right side and for a vehicle left side by left and right sides of the case member being reversed, the mounting hole of the case member can be mounted to the frame and the like for the vehicle right side and the vehicle left side.

Abstract: This invention has as its object to prevent deterioration of optical performance by suppressing the respective reflection surfaces from being decentered relative to each other in an optical element formed by placing a plurality of reflection surfaces having curvatures at neighboring positions. In order to achieve this object, an optical element according to this invention has a first reflection surface block formed by placing a plurality of reflection surfaces having curvatures at neighboring positions, and a second reflection surface block which faces the first reflection surface block, and is formed by placing one or more reflection surfaces at neighboring positions, and the first and second reflection surface blocks are formed by a metal mold.

Abstract: A rear view mirror for a vehicle has a reflective member mounted for angular movement about a pivot axis perpendicular to a plane containing both a first line and a second line. The first line bisects the angle between an incident ray and a reflection of said incident ray extending to a first end of the major axis of a vertical section through the eyellipse, and the second line bisects the angle between said incident ray and a reflection of said incident ray extending to a second end of said major axis.

Abstract: A light pipe includes rectangular upper and lower surfaces, an incidence side surface which is one of side surfaces between the upper and lower surfaces, and light output means formed in one of the upper and lower surfaces so that light incident on the incidence side surface exits from the other one of the upper and lower surfaces through the light output means. A radius of curvature of a corner portion formed at a point of intersection between the incidence side surface and each of side surfaces adjacent to the incidence side surface is not larger than 0.3 mm. A plane light source unit in which a linear light source is disposed on the incidence side surface of the light pipe is provided. A transmission type or reflection type, or reflection-transmission double type liquid-crystal display device which has at least such a plane light source unit and a liquid-crystal cell is provided.

Abstract: A surface light source device and LCD provide a visual angle highly uniform two-dimensionally and reduced fine brightness unevenness, utilizing a light guide plate. The surface light source device illuminating an LCD panel employs a light guide plate having a back face 34 provided with many micro-reflectors 20. Beams P1, P2 representing an inner input light is inner-reflected by a slope 21 and then by another slope 22 or 22 and then 21, becoming an inner out light Q1, Q2 proceeding toward an emission face 33. Postures of micro-reflectors 20 are deviated from a standard posture on x-axis, y-axis and z-axis, respectively, thereby causing beams Q1, Q2 to inner-impinge to the emission face 33 at proceeding directions which are different three-dimensionally from each other. This difference is amplified through refraction at emission from the emission face 33.

Abstract: The present invention provides an under water lighting assembly including a housing and a plurality of LEDs mounted on a board within the housing. The LEDs are arranged in a plurality of banks such that are powered respectively. The banks are circular and concentric. A non-board programmable process or allows independent color switching and color modulation of the LED arrays.

Abstract: A water globe includes a programmable, multi-color, fiber optic display that can be synchronized with an audio source. The fiber optic bundle sits in a well where the first end of the bundle receives illumination from a three-color LED and the second end of the optical fibers is held in place by an inner top in such a way that the surface of the inner top produces an attractive changeable, multi-color display.

Abstract: A lighted cap is described, comprising a cap having a crown and a bill, and a light structure rotatably fixed to a point on the bill. Rotation to a forward-facing direction for the light results in contacting a contact point that closes a circuit, thereby supplying power to the lamp in the rotatable light structure. The light is used for nighttime activities, such as fishing, when light is needed and a light-weight hat is desired.

Abstract: A flashlight holder for use with a conventional hart hat to releasably receive a flashlight of the type defining a faceted barrel and a head which is rotatable relative to the barrel for operation of the flashlight. The flashlight holder is designed such that a flashlight is operable with one hand when retained in the flashlight holder. The flashlight holder defines a barrel support secured to a base. The barrel support defines an interior surface and a slot configured to cooperate to closely receive and retain the flashlight barrel in a non-rotatable manner. The base of the flashlight holder defines a tab configured to be releasably engaged within a slotted receptacle defined by the hard hat. A locking projection extends from the tab for engaging a lower edge of the hard hat.

Abstract: A lighting device includes a mount adapted to be attached to a power tool. A flexible support extends from the mount and permits the lighting device to be oriented in any desired direction. A fluorescent lamp is mounted on the flexible support opposite to the mount. An electric circuit serves to light the fluorescent lamp and includes an inverter circuit.

Abstract: The invention concerns a flash-light comprising a control membrane, one or several reserve batteries (20), an emergency lighting (22), display means, and a managing electronic circuit comprising: means for controlling the level of the batteries to display their charge level and switch the battery or batteries (20) on the emergency bulb (22) if the main bulb is connected but the level of the cells (12) is insufficient; means for controlling the bulb, the circuit displaying the bulb condition (in order/out of order) or a charge level of the batteries (12) when the flash-light is on; means for controlling the charge level of the battery or batteries (20) to connect the battery or batteries (20) on the cells (12) and for recharging it or them if the level of the battery or batteries (20) is insufficient, said supply being interrupted as soon as the level of the battery of batteries (20) is above a threshold.

Abstract: A pushbutton and rear cap mounting arrangement for flashlight is so arranged that the pushbutton is alternatively set between a first position where the pushbutton is locked in “on”position to close the circuit of the flashlight, and a second position where the pushbutton is unlocked and supported in “off” position to open the circuit and the user can push the pushbutton with the thumb to “on” position to turn on the flashlight when desired.

Abstract: A lamp conversion device with a dual lamp socket for providing a selective incandescent and fluorescent light from the same lamp. The lamp conversion unit has an screw-type adjustable pole to raise or lower the light source according to the user's need. The conversion unit houses the light bulbs in the inverted position to direct the light downward for efficient use of the light source. The pole has a three way switch and one on-off switch. The conversion unit for the lamp has an attachment for use with a lamp shade.

Abstract: An LED signal using a single optical element. The single optical element designed with a generally smooth outer surface and an inner surface having Fresnel optical elements in an inner center region and total internal reflection elements in an outer periphery region. The single optical element may have an integral sealing surface for sealable connection to the signal housing and no countersinking so that it is capable of manufacture by injection molding.

Abstract: An adaptor for a flashlight, the flashlight having a front lens housing and bulb, a power housing secured to the lens housing, the power housing having a plurality of C or D battery types in series and an end cap secured to said power house, the adaptor means in a first embodiment being a first conductor secured in a first insulator and interposed between said first battery and said bulb, a second insulating means secured about a second conductor means and secured to the end cap biasing means, said first conductor means and said second conductor means in electrical communication, a two prong, two conductor adaptor means secured through the face of the end cap and in electrical contact with the second conductor means when the end cap is secured to the power housing, the two prong, two conductor adaptor adapted to receive an electrically conducted communication means which communication means would have an appropriate plug in its opposing end for engagement with a jack on an electrical instrument having a deple