Abstract: A refill unit for a negative pressure type implanted infusion device includes a hollow cylindrical housing member which is adapted to receive at one end a bottle of vacuum conditioned medication. As the bottle is inserted first and second needles or tubes penetrate the closure member of the bottle, the shorter one of these needles being positioned to receive medication inside the bottle and the longer one extends into the ullage space of the bottle when it is inserted and held vertically. The shorter needle communicates with a refill needle, which extends downwardly from the other end of the cylindrical member, through a membrane type filter which is hydrophilic to the medication and has a micron rating such that the filter once it is wetted can pass air bubbles but only at a differential pressure substantially greater than the negative pressure differential of the implanted device.

Abstract: A fluid coupling device is disclosed of the type including an input coupling member (11) rotatably disposed within an output coupling assembly (13). A portion of the output coupling assembly comprises a cover member (17) which cooperates with a housing member (15) to define an operating chamber (31). A valve plate (29) separates the operating chamber (31) from a fluid reservoir chamber (33) and defines a fill opening (41) to permit fluid flow from the reservoir chamber into the operating chamber. In a primary embodiment, the cover member (17) defines a radial passage (79) which is disposed to communicate fluid from the reservoir chamber (33) to the operating chamber (31).

Abstract: A motor overload protection system (OL) that has a speed of operation fast enough so that it will always trip before the power switch (MC) has had time to operate if the turn-on control means (ON) is operated under overload conditions. In one version, modules (OL1,OL2) are provided having PTC thermistor sensors (PTC1,PTC2) bonded to resistance heaters (H1,H2) connected in the motor power circuit (L1,L2,L3), these sensors being supplied from a current source (CT) and being effective to shunt current to a protective trip device (TR) upon occurrence of an overload condition, there being an ambient temperature compensating PTC themistor (PTC3) in series in the sensor circuit (OLC).

Abstract: A switch assembly having a pushbutton actuator with graphics backlit by an electroluminescent light source deposited upon a mylar substrate. A separate indicator lamp is provided to be lit when the function selected by the switch is activated. The indicator light is visible through a small window in the pushbutton. In order to prevent light from the indicator lamp from impinging upon the graphics area, a portion of the mylar substrate is opaquely coated to block the light transmission, while the remainder of the mylar substrate is clear to insure proper registration and prevent degradation of the electroluminescent phosphor.

Abstract: A programmer timer for an appliance, such as microwave cooking oven, having a magnetron power switch positioned by a control selectively moved to one of three power level settings by user rotation of the single rotary knob to a selected position on one of three separate cooking program interval range scales on the dial. Selection of a knob position on the first scale provides a 100% magnetron duty cycle, or full "ON", cooking mode for the desired cooking interval, selection of a knob position on the second scale provides a first predetermined fractional duty cycle for "MEDIUM" power level magnetron operation for the desired cooking interval; and, selection of a knob position on the third scale provides a second predetermined fractional duty cycle for "LOW" or "DEFROST" power level magnetron operation for the desired cooking program interval. A single timing motor drives a cam advance mechanism for effecting time-out of the selected program interval for the three power levels of operation.

Abstract: A rotary fluid coupling device is provided of the type including a first rotatable coupling assembly (13) comprising a housing member (15) and a die cast cover member (17). An input coupling member (11) is disposed in a fluid operating chamber (33) and cooperates with an adjacent surface of the cover member (17) to define a viscous shear space therebetween. When the shear space is filled with viscous fluid, torque can be transmitted from the input to the output, such torque transmission resulting in the generation of a substantial amount of heat. The cover member (17) includes a plurality of cooling fins which are divided into a plurality of regions (61). Within each of the regions (61) is a radially-extending cooling fin (63) and a plurality of full-length, parallel cooling fins (65). Also included within each region (61) is a plurality of shorter cooling fins (67) and (69) which are also parallel to the radially-extending cooling fins (63).

Abstract: A plurality of wide flat bus bars (A,B,C,N) stacked in flat face-to-face relation are clamped against separation forces of short circuit currents in the bus bars by U-shaped reinforcement channels (6,14) disposed over opposite edges of the bus bars with bight portions (6a,14a) of said channels abutting the edges of the bus bars and leg portions (6b,14b) thereof extending along flat surfaces of outer ones of said bus bars. A plurality of bolts (8) through aligned holes in outwardly directed flanges (6c,14c) formed on the free ends of the legs of the channels and are threadably tightened to draw the channels together and to exert a clamping force against the flat faces of the bus bars. A flat sided housing (16,24) is attached to the channels (6,14) and may be provided with access openings (16a) at intervals therealong for making plug-in connections with the bus bars.

Abstract: A protective shroud (22) for a flexible electrical cable (20) at the location where it emerges coaxially from the rear end (14) of an electrical device, such as an inductive proximity or photoelectric sensor (2), serving as a strain relief and protection from being bumped as well as retaining such electrical cable (20) at a gradual right-angle bend from a horizontally-mounted sensor (2) to keep it out of the way, such as from the aisle adjacent a conveyer on which the sensor is mounted. Snap-in means including an annular groove (18) on the rear end of the sensor (2) and a constricted-opening (22f) slot (22e) in the inner side wall (22d) of the shroud (22) afford snap-in mounting of the latter onto the rear end (14) of the sensor (2) with the shroud (22) being rotatable thereon to allow the electrical cable (20) to be oriented in any desired direction. Another version of protective shroud (24) adapted for a vertically-mounted sensor ( 2) in FIG.

Abstract: A front mounted rectangular pushbutton switch is clamped within a hole in the panel by screws accessible through a front opening of the switch housing which drive an external clamping assembly against the rear of the panel at the midpoints of four sides of the switch housing. The clamping assembly employs two screws at diagonally opposed corners of the housing, each of which controls movement of a clamp on two adjacent sides of the switch.

Abstract: A modular tire valve assembly (11) for a central tire inflation system (10) comprising a valve body (212) having only a first (66) and a second (72) fluid connection from the exterior to the interior thereof is provided. The first fluid connection comprises a first port connected to a selectively pressurized and exhausted conduit (52) and the second fluid connection comprises a second port connected to the interior pressurized chamber (74) of an inflatable tire (12). The assembly includes first valve means (220) responsive to pressurization and exhausting of said selectively pressurized and exhausted conduit to establish or block, respectively, fluid communication between said first and second ports and second valve means (280) responsive to pressurization in said interior tire chamber to maintain said first valve means in the closed position thereof if said interior tire chamber is pressurized below a predetermined reference pressure.

Abstract: A semi-automatic mechanical change gear transmission system (11) including a manually operated non-synchronized mechanical change gear transmission (12), a plurality of two-position sensors (278, 280, 282, 284, 286 and 290) cooperating with sensor ramps (146, 148, 150, 152, 154 and 156) manually provided on the operated shift rails (104, 106 and 108) for sensing manual selection of engagement or disengagement of a particular ratio gear, speed sensors (48 and 50) for sensing the rotational speed of the jaw clutch elements associated with a particular selected ratio gear, a power synchronizer assembly (10) and a inhibit mechanism (304) associated with a standard interlock/neutral sensing assembly (254) to resiliently resist axial movement of the shift rails (104, 106 and 108) from the axially nondisplaced positions thereof in the absence of synchronous rotation of the jaw clutch members associated with a particular selected ratio gear.

Abstract: Apparatus for accurately measuring the charge distribution, and hence the voltage, on a non-conducting workpiece during ion bombardment. The invention is based on the principal that the charge on the surface of the workpiece induces equal and opposite charge on the surface of an isolated proof plane conductor placed in front of it. A workpiece is moved at a known speed in front of the proof plane, whose dimensions are small compared to the workpiece. The measurement of the time distribution of the induced charge on the proof plane is a measure of the spatial distribution of the charge on the bombarded workpiece. The proof plane surface is isolated from currents which might flow directly to its surface.

Abstract: A pushbutton switch having a rectangular opening in a forward end of its housing substantially filled by a single rectangular pushbutton has a rectangular resilient seal attached to the housing at the forward end, the seal further having cylindrical shape disposed within the rectangular shape attached to a cylindrical surface at the rear of the pushbutton, the rectangular and cylindrical shapes being joined together by a reflex bend to provide a rolling movement of the seal upon depresion of the pushbutton.

Abstract: A bimetal operated latch subassembly (600) for an electrical device such as an overload/switch device which is a self-contained unit that can be mounted into operative position relative to the trippable member (012) of the electrical device. A bimetal assembly (660) and a pair of terminals (604,621) electrically connected thereto are mounted on a main insulating base (601). A vibration and shockproof latch assembly (610) is preassembled on a stainless steel sub-base (611) which is then secured by a single screw (605) to the main base (601) at the same time coupling the bimetal assembly (660) to the latch (610) in operative relationship. The latch (610) is rendered shockproof by providing a spring-biased linear slider (650) that latches to a transversely pivoted latch lever (613). The latch friction that must be overcome by the bimetal (608) is reduced to a minimum by providing the latch lever (613) with an adjustable bias (614,615) that almost balances the tripping force (Y) of the trippable member (012 ).

Abstract: A target chamber for a mechanically scanned ion implanter in which semiconductor wafers are maintained in contact with a rotating target disk entirely by body forces, thus eliminating the need for clamping members contacting the wafer surface. The axis of the disk is inclined, and the disk is in the form of a shallow dish having an inclined rim with cooled wafer-receiving stations formed on the inner surface of the rim. Centrifugal force is relied on to force the wafers against the cooled disk. Each wafer-receiving station includes fence structures which are engaged by the wafer during loading and when the disk is spinning. The fence structures are resilient so that wafer damage and thus particulate contamination is minimized. In accordance with another aspect of the invention the ion beam is projected against the wafers obliquely to the radius of the disk as to minimize striping effects and overscan.

Abstract: An L-shaped member (20) is secured adjacent a fuse clip (12) to extend forwardly along one side of a fuse (F) received in that fuse clip. A flexible insulating strap (24) is secured to the outer end of the forwardly projecting post (20a) to lie within a groove (20e) in the post and extend rearwardly around the back side of the fuse and then forwardly along an opposite lateral side of the fuse. Pulling the free end of the strap (24) upwardly or forwardly causes that end of the fuse to be rolled forwardly of the fuse clip with a mechanical advantage.

Abstract: An electrical coil assembly includes a bobbin having a pair of generally parallel end plates with a pair of terminals inserted into holes in an edge in one of the end plates. A wall is attached to that one of the end plates and extends radially outward therefrom, being formed with a pair of crossholes each aligned with one of the blind holes. A pair of terminals are partially inserted into the blind holes. Each of the terminals includes an elongated slot of reduced width at the end remote from the end plate. A portion of the terminal slot material is lanced out to form a tab at that remote end of the terminal. The close in ends of the terminal slots are lined up with the crossholes. Magnet wire is then wound on the bobbin hub and the two ends of the magnet wire are dressed through respective terminal tabs and then resistance welded thereto. A layer of protective tape is then applied over the surface of the wound coil.

Abstract: A pressure transducer of the type providing a continuous electrical output signal indicative of the variation in sensed pressure having a metallic preferably aluminum armature attached for movement with a resilient pressure responsive diaphragm. A resonant circuit includes a coil disposed adjacent the armature and an oscillator provides current flow in the coil which generates eddy currents in the armature; and, movement of the diaphragm and armature causes the eddy currents therein to alter the effective inductive reactance of the coil and shift the frequency of resonance of the circuit. Circuit means are provided to emit an output signal indicative of the frequency shift for enabling a continuous determination to be made of the sensed pressure on the diaphragm. An auxiliary snap-action switch is provided remotely from the diaphragm and is actuated by a non-metallic rod from the armature passing through the central region of the coil. The circuitry is preferably mounted on a p.c.

Abstract: Provided is an improved fluid operated clutch control system (80) of the normally disengaged type and control system (100) of the normally engaged type that both employ a control valve (22) operative to selectively provide a fluid signal from a fluid pressure supply source (24) to a first fluid operated actuator preferably in the form of a piston (9) operative in the case of system (80) to overcome a reslient biasing device (26) and move the clutch to the engaged condition upon receipt by the control valve of an actuating signal normally provided either by depression of a clutch pedal (50) for a standard transmission or by a sensor (52, 53) for an automatic transmission and in the form of a piston (9A) for system (100) operative to overcome a resilient biasing device (26A) and move the clutch to the disengaged condition.

Abstract: A method for passively locating in range and azimuth both active, such as radar, and passive objects. The present invention uses existing direction finding equipment located on a platform, such as an aircraft or ship. At the platform, the invention includes measuring the scan period of the radar, the time of intercept of the main beam of the radar, the angle of arrival of the radar main beam, the time of arrival of a bistatic signal echo from a passive object which has been illuminated by the radar, and the angle of arrival of the echo; calculating the difference between the angle of arrival of the echo and the angle of arrival of the radar main beam to obtain an angle .theta.; determining an angle .phi.