Abstract: A crank guide assembly for an internal combustion engine with facing cylinders includes a crank guide defining an opening with a pair of opposed long sides and a pair of opposed short sides extending between the long sides. The long sides guide the sliding piece on a crankshaft. A replaceable base plate is mounted on each of the long sides and locking plates, disposed parallel to the short sides, hold the base plates on the long sides.

Abstract: A rocker arm adapter for use in the timing mechanism of an internal combustion engine is disclosed. The adapter is a method for altering the cam profile of the exhaust valve of the engine with respect to the intake valve. It includes a fluidic delay device mounted in either the first end or the second end of the rocker arm. The delay device includes a piston which is allowed to move various distances in a cavity formed in the rocker arm, the distance being directly related to the speed of movement of a push rod member. As the speed of the engine, and the speed of movement of the push rod, increases, the piston will be allowed to move a greater distance into the cavity so that the delay in actuation of the rocker arm by the push rod is increased.

Abstract: A valve train for a reciprocating internal combustion engine has a fulcrum means and a rocker arm that define a pair of cooperating outer and inner cylindrical bearing surface contours, respectively, for carrying the reaction forces of rocker arm pivotal movement, the radius of the outer conformation being substantially two times the radius of the inner conformation, with the center of revolution of the outer conformation being located on the operating axis of the valve, the inner conformation of the rocker arm being located such that an extension thereof will intersect the contact point of the rocker arm on the axis of the valve at the free end thereof or on a lifter positioned between the rocker arm and valve. Restrainer means are provided to anchor the cooperating cylindrical conformations for substantially rolling action in relation to each other.

Abstract: A first device is provided for selectively activating and deactivating a glow plug. A microcomputer system is connected to the first device for controlling the first device. A DC power source is electrically connected to the microcomputer system and a starting motor for supplying DC electrical power to the microcomputer system and the starting motor to activate them. The microcomputer system becomes inactive and causes the first means to deactivate the glow plug when the voltage of the DC electrical power drops below a minimum rating value. A switch is disposed in the electrical connection between the starting motor and the power source for selectively effecting and interrupting activation of the starting motor. A second device is provided for activating the glow plug when the switch effects activation of the starting motor regardless of whether or not the voltage of the DC electrical power drops below the minimum rating value.

Abstract: A spark plug having a heat pipe located between the insulating core and the shell in the skirt portion thereof to vary the heat range automatically in response to the operating conditions of the engine in which it is fitted. The heat pipe is charged with a non-condensible gas and a working medium that undergoes a phase change at a predetermined design temperature to transport heat by means of an evaporation-condensation cycle from the firing end of the spark plug to prevent the overheating thereof. Below the design temperature, the heat pipe is thermally non-conducting such that the firing end of the spark plug is allowed to reach a temperature that will burn off combustion deposits that cause misfiring. In one embodiment, the heat pipe is fabricated as a separate integral annular element which is installed in the skirt of the spark plug during the manufacture thereof.

Abstract: An engine comprising an intake port which has a helical portion and a separating wall projecting downwardly from the upper wall of the intake port. The separating wall defines an inlet passage portion tangentially connected to the helical portion, and a bypass passage interconnecting the inlet passage portion to the helical portion. A rotary valve is arranged in the bypass passage and actuated by a vacuum operated diaphragm apparatus. The rotary valve is opened when the amount of air fed into the cylinder of an engine is increased beyond a predetermined value.

Abstract: An internal combustion engine includes a lubricant level maintenance system. A reservoir is located externally of the engine. A pump is connected to the reservoir and a conduit leads from the pump to the engine oil pan. An electrical level sensing circuit includes a thermistor which is positioned in the engine oil pan, preferably by means of an engine dip stick. An enabling circuit is connected to receive an input from the sensing thermistor and from the engine electrical ignition system. The enabling means responsively provides an enabling signal to the pump following the elapse of a predetermined time interval when the engine is turned off. A tilt switch disables the sensing system to prevent distortion of the thermistor signal if the vehicle is parked on an incline.

Abstract: A torch ignition type internal combustion engine has an auxiliary combustion chamber connected by a torch passage to a compact main combustion chamber. A cavity in the cylinder head forming a part of the main combustion chamber is provided with two intake valves on one side of the cavity and one exhaust valve on the other side. A large squish area is formed between the upper surface of the piston and the lower surface of the cylinder head and one or more suction conduits connect this squish area to the torch passage between its ends. Two torch passages may be provided; one may extend into the cavity near the exhaust valve and the other into the cavity near the remote intake valve. A plug chamber receives the spark plug electrodes and this chamber is in communication with both the auxiliary combustion chamber and the torch passage. In one form of the invention one torch passage extends from the lower end of the auxiliary combustion chamber and the other torch passage extends from the plug chamber.

Abstract: The invention relates to limiting of the r.p.m. on start of a power tool. At the same time the throttle control is locked in a starting position by a retaining member, a circuit in the ignition system is switched in to prevent ignition at an r.p.m. higher than the switching r.p.m. of the centrifugal clutch. The tool thus remains at low speeds during starting.

Abstract: A carburetion system for an internal combustion engine wherein the cooperation of throttle blades with the throttle body forms channels for high velocity fuel/air mixture flow at part throttle conditions. Fuel is introduced into air flowing through the main intake passage upstream of throttle blades. At partial throttle conditions, the fuel/air mixture flows substantially only through the channels. Fuel/air mixture emerges from the channels at high speed. The channels can be configured such that the emergent fuel/air mixture streams from the channels are directed on convergent paths. Converging streams from the channels collide in the air intake downstream from the throttles, where the severe turbulence resulting from the convergence causes liquid fuel to be finely atomized and evenly suspended in the intake air. Some of the liquid fuel from the mixture may separate onto the walls of the throttle body as a result of passage through the channels or turbulence from the region of convergence.

Abstract: An idling rpm feedback control method for controlling the quantity of supplementary air being supplied to an internal combustion engine, in a feedback manner, responsive to the difference between actual engine rpm and the desired idling rpm. When the engine rpm drops to a predetermined rpm being the upper limit of the desired idling rpm, the above feedback control is initiated. When the engine is decelerated with the throttle valve fully closed, and before the feedback control is started, the supplementary air quantity is controlled in decelerating mode in a predetermined manner while the engine speed drops from a predetermined rpm larger than the upper limit of the desired idling rpm to the same upper limit.

Abstract: An idling rpm feedback control method comprises controlling the quantity of supplementary air being supplied to an internal combustion engine equipped with at least one equipment which creates a load acting on the engine and includes at least one electrical device, in a feedback manner responsive to the difference between actual engine rpm and desired idling rpm during idling of the engine. The method also comprising varying the quantity of fuel being supplied to the engine in response to detected values of the total quantity of intake air inclusive of supplementary air at each predetermined rotational angle of the engine, so as to maintain the air-fuel ratio of a mixture being supplied to the engine at a desired value.

Abstract: An idling rpm feedback control method for controlling control means that controls the quantity of supplementary air being supplied to an internal combustion engine in a feedback manner, in response to the difference between actual engine rpm and desired idling rpm at engine idling, when all predetermined engine operating parameters at least including the throttle valve opening show values satisfying a predetermined condition. When the throttle valve opening detecting means malfunctions, control is effected by maximizing the quantity of supplementary air to the engine by operating the above supplementary air quantity control means to its operating limit.

Abstract: To obtain higher current yield from ion current measurable across the electrodes of a spark plug upon application of a biasing potential thereto, occurring immediately after an ignition event due to ionization of burning hydrocarbons within the combustion chamber of an internal combustion engine (ICE), the polarity of the circuit including a spark plug is so selected that the smaller one of the electrodes, typically the center electrode of the spark plug, has a positive measuring voltage and positive ignition voltage applied thereto so that the positively charged ions, which have a substantially greater mass than the electrons, will be caused to flow to the negatively charged substantially greater electrode, thus resulting in an enhanced ion current. A standard automotive ignition circuit can be used, with the battery connected, as customary, with negative-ground (FIG.

Abstract: A fuel injection apparatus for supplying fuel to an internal combustion engine is proposed. The fuel injection apparatus includes a pump work chamber enclosed within a pump housing, which work chamber is defined at one end by an axially displaceable and rotatable pump piston. The pump work chamber can be made to communicate, during the intake stroke of the pump piston, with a fuel inlet conduit via an electromagnetically actuatable metering valve and a check valve. The metering valve and check valve are combined into a common valve housing and are disposed in the immediate vicinity of the pump work chamber.

Abstract: A failsafe system for an engine-control servomotor compares a servomotor command signal to a feedback signal from the servomotor. When the magnitude of the difference between the two signals is greater than a predetermined value for a predetermined time, the failsafe system shuts down the servomotor or performs some other engine shut-down procedure. The failsafe system includes a comparator for comparing the two signals, the output of which leads to two other op-amp-type comparators connected in parallel, which work on negative or positive outputs of the first-mentioned comparator, respectively. Each of the later comparators receives a reference voltage input against which to compare the output of the first-mentioned comparator. Their outputs lead parallelly to time-delay circuits which check for a positive output for a predetermined length of time by a well-known capacitor-integration technique.

Abstract: A current regulator is proposed for use in an electronically controlled, continuously operating gasoline injection system, with the aid of which a control element can be supplied with different current values depending upon the operating states of the engine. In addition to a current regulating phase during active operation, it is possible with the proposed current regulator to reverse the direction of current flow in the control element for the sake of blocking the supply of fuel during overrunning. Towards this end a circuit apparatus links signals relating to rpm, throttle valve position and temperature. Furthermore two safety circuit arrangements are proposed for the current regulator, so that in case of a failure of important components there is no impairment of safety, and emergency operation is assured.

Abstract: A fuel injection means for an internal combustion engine of an automobile is disclosed which comprises a pulse length determination circuit which receives a driving condition signal and develops a signal of a pulse length corresponding to the driving condition, a fuel injection starting signal generator circuit which develops a fuel injection starting signal and a driving signal generator circuit which develops a driving signal of a pulse length corresponding to that of the signal from the pulse length determination circuit. The driving signal thus developed is sent to a fuel injection valve, thereby fuel of a reliably controlled quantity is injected with a reliably controlled timing not only during usual driving condition but also during acceleration.

Abstract: A fuel supply control method for controlling the fuel supply to an internal combustion engine at deceleration, wherein the fuel supply to the engine is interrupted when the engine is operating in a predetermined operating region while it is decelerating. The fuel supply is interrupted when the engine is operating in either of the following operating conditions: (1) when the throttle valve is in a substantially fully closed position while the engine is decelerating; and (2) when the throttle valve is in a position other than the substantially fully closed position and simultaneously the engine is operating in a predetermined operating region determined by the engine rotational speed and another engine operation parameter relating to the intake air quantity of the engine, preferably, the intake passage pressure.

Abstract: A hydraulic automatic device for the injection advance of a diesel engine. The device includes a hub fixed to the pump camshaft and a casing fixed to the drive pinion of the pump. Two rollers in the casing bear on the ramps of pistons, the position of which is a function of the speed of rotation of the device, owing to two inertia blocks, the thrust of the pistons and the control of the slide valve of a hydraulic distributor. Thus at each speed of rotation, there corresponds a certain angular displacement of the components and a certain advance of the injections.

Abstract: An apparatus for supplying cooled fuel to the fuel injection valves of a fuel injected internal combustion engine. In the engine, there is a distribution tube having a fuel passage for fuel and a coolant passage for a cooling medium such as water or air. The fuel passage is provided in close proximity to the coolant passage, whereby the fuel in the fuel passage is cooled by the coolant in the coolant passage. Consequently, the cooled fuel is supplied to fuel injection valves.

Abstract: An electrically heated screen arrangement operated from a vehicle battery and automatically controlled to heat the fuel mixture. The fuel mixture provided by the carburetor of the vehicle is drawn through the present system which comprises an outlet conduit from the carburetor delivering fuel mixture through a housing which is closed by a special screen that is electrically heated to the proper temperature and then through a passageway and a cooling device comprising a screen in relationship together with a ceramic filter in a housing. The temperature of the screen is sensed and monitored. Several screens and coolers may be mounted in series.

Abstract: This invention relates to an internal combustion engine cooled by water and provided with a Diesel oil heater, wherein the exchanger of the heater is fixed directly to the cylinder head of the engine, the two surfaces in contact being coupled to each other, and this cylinder head comprises, on its face on which the exchanger is applied, orifices which place it in communication with the space in the exchanger through which the water cooling the engine passes.

Abstract: A modular fuel conditioner having a base and a disposable filter/water separator cartridge releasably secured to the base and defining a filter chamber in fluid communication with fuel inlet and outlet passageways in the base. A three stage filter assembly within the cartridge includes filtering and coalescing media and separates an upper portion of the chamber from a lower portion which defines a water collection sump. A heater in the base warms fuel before it enters the cartridge. Sensing devices in the base are provided for operating signals to indicate the presence of a predetermined quantity of water in the sump and the occurrence of a plugged filter condition. A priming pump on the base is manually operated to restore the fuel conditioner to operational condition after cartridge replacement.

Abstract: An ignition system for a two-cycle engine which comprises a rotational body rotatable in synchronism with the crank shaft of the engine and having thereon a detectable portion extending circumferentially thereof, and a detector placed in the vicinity of the rotational body for detecting the circumferential edge portions of the detectable portion and for producing an electric signal containing amplitude variations appearing at the passage of the edge portions near the detector. The electric signal is processed by an ignition pulse generator which produces an ignition pulse at each time when a selected one of the amplitude variations of the electric signal occurs. The circumferential length of the detectable portion is selected so that the ignition pulse appears when the crank angle of the crank shaft is outside of the reverse rotation allowing angular region.

Abstract: Solid state inductive magneto ignition system with antireverse running circuit has a switching transistor connected in circuit with the primary of an ignition coil. A control circuit is connected for cutting "off" the switching transistor to generate ignition pulses. A first by-pass circuit for shunting current from the control circuit includes a silicon controlled rectifier (SCR) which is turned "on" by discharge of voltage from a capacitor in combination with a resistor which serves as a time delay to hold the by-pass circuit "on" for the duration of a voltage pulse developed by reverse running of the magneto. A voltage polarity sensing circuit for by-passing the by-pass circuit in response to a forward running pulse includes a silicon controlled rectifier (SCR) connected in parallel with the first SCR and a choke coil and a resistor to cause the second SCR to be turned "on" by a first negative pulse developed during forward running of the magneto.

Abstract: An archery bow stabilizer mounting bracket includes first and second pivotally interconnected members adapted to be secured to a bow and a stabilizer, respectively. The members include detent structures for selectively securing the stabilizer in an operative or inoperative position. The members are resiliently positioned with respect to one another to facilitate operation of the detent structure and to improve the shock-absorbing characteristics of the stabilizer.

Abstract: A self-tapping duct fitting (10) in the form of a hollow sleeve having an interrupted cutting edge (20) at a one end (14) so that a hole (68) can be cut in a wall (66) of the duct by a rotative motion of the fitting. Preferably, the interrupted cutting edge (20) includes a plurality of teeth (22) which can form tabs bendable against the inner surface (72) of the duct wall (66) once a hole (68) has been cut in order to retain fitting (10) in place.

Abstract: A solar collector comprising a hemisphere (111) having a reflector internal surface; a caustical concentrator (116) located at the focus of the hemisphere (111) and having a concentrated second focus for radiation reflected onto its surface from said hemisphere, a heat exchanger (120) located at the second focus, said caustical conical concentrator (116) being mounted to rotate about a substantially North-South axis passing through said second focus and being driven by a drive such that with movement of the sun, incident solar radiation is constantly directed at said second focus.

Abstract: An improved method and apparatus is disclosed for adding fluids to, or removing fluids from, a body part or organ of an animal which minimizes animal trauma and permits rapid, easy, repeated fluid or low viscosity gels transfers. The apparatus includes a valve assembly having a tubular fluid-conveying element adapted for fixed connection to the animal, along with a fluid conduit connected between the valve element and a specific internal body part or organ, such as a cow's uterus. In use, a syringe is employed to introduce or remove fluids from the body part, through the valve assembly and connected conduit. The invention is especially adapted for introducing, recovering cell lines producing monoclonal antibodies or other biologically active products in large mammals, and facilitates monitoring of antibody production as well as administration of nutrients to enhance cell line growth.

Abstract: Massaging element for mechanical massaging device comprises an inner ring fixed eccentrically to a main driven shaft and an outer ring fitted around the inner ring through an antifriction bearing, and the outer ring comprises many arcuate and elastic plate-spring parts extending substantially spirally outward as formed integrally with a ring body and a soft material layer formed around the body embedding therein the plate-spring parts. The element initially provides a soft touch to a human body and then gradually harder touches with the modulus of elasticity increased stepwise, whereby a pressing massage action similar to that manually given by a skilled massagist can be obtained.

Abstract: A surgical cast for use in treating bone fractures, especially fractures with pins that extend to a pin-site area, includes an opening at the pin-site area and a window that aligns with the opening. The window has a surface that projects away from the pin-site and defines a clearance space between the cast and the pin-site to avoid any rubbing of the pins by the cast. The window also furnishes clearance at the pin-site for terminal connections to a bone growth stimulator.

Abstract: A strapping assembly and method for the treatment of acromioclavicular separations. The strapping assembly includes a stocking that is worn on the leg of the patient on the side opposite the injury and serves an an anchor. A tension member strap is connected to the stocking through an adjustable garter. From the stocking, the strap extends upwardly to the patient's shoulder on the side of the injury and then over the shoulder and downwardly to the patient's forearm. The strap is looped around the forearm to hold it sling fashion and the weight of the forearm places the strap under tension. After the strapping assembly has been applied to the patient, the acromioclavicular separation is reduced by the physician by closed reduction and then the tension on the tension member is adjusted to maintain the reduction.

Abstract: An emergency respirator for rapid use by a person comprises a container having a cartridge for material which acts to bind carbon dioxide and to liberate oxygen to gases which pass therethrough. A breathing connection is connected to one end of the container preferably comprises a bellows-like hose which terminates at its outer end in a mouthpiece and defines a breathing passage interconnected into the cartridge. A jacket defines a heat storage connection to the opposite end of the container which is openable to atmosphere and expiration gases pass through the cartridge and are heated by the binding of the carbon dioxide and this heat is stored in the heat storage. Inspiration gases are then directed through the opening of the heat storage through the heat storage where they are heated before passing through the cartridge to liberate oxygen so that the incoming inspiration gases are enriched with oxygen and heated before they are delivered to the person.

Abstract: A microsurgical laser device for guiding a laser beam to a desired target. The device includes a laser head that is vertically oriented and which is supported by a base that contains the required electronics for the system. This laser head can be tilted in all directions so as to position the device for use. The laser head is coupled to an articulated delivery system that allows for the delivery system, including a colposcope or an operating microscope, to be raised, lowered, tilted, rotated, and focused onto the target.The articulated connection from the laser head to the colposcope or operating microscope makes use of a minimum number of mirrors to redirect the laser beam at 90 degree angles along a direction perpendicular to the axis of the incident path. Each mirror is mounted on precision mounts that obviate the need for adjustments.In one embodiment of the device the articulated system makes use of three mirrors to redirect the beam and one lens to provide a fixed laser spot size at the target.

Abstract: A surgical instrument comprising a scalpel handle with a separate protective sheath for use in closed surgical procedures, such as arthroscopy. The protective sheath provides for atraumatic insertion of a scalpel blade into the body and to the actual operative site, minimizing the chance of accidental cutting of surrounding tissue. The handle portion is insertable into the tubular sheath from the distal tubular opening of the sheath. The sheath and handle combination may be engaged relative to each other in a plurality of functional positions.

Abstract: A folding cartridge for a plurality of ligating clips adapted for removable attachment to a multiple ligating clip applier. The folding portion of the cartridge may be easily fabricated flat as a unit and then the sidewalls may be folded to form a generally U-shaped channel. Special transfer fingers are suspended at the front of the folding rack by a combined leaf spring and torsion spring support for assisting in the proper control of ligating clips as they proceed from the cartridge to the applier.

Abstract: A method of treating baldness is disclosed which includes the implantation of strands of natural or artificial hair beneath the scalp and into the subcutaneous tissue. The method contemplates pre-forming the strands of hair into a U-shaped loop which can be implaced beneath the scalp by means of a penetration instrument in an arcuate or concave configuration with respect to the scalp for improved retention properties. Apparatus is also disclosed for carrying out the method which will facilitate engaging and implanting the hair in the manner just described and which is also capable of readily disengaging the hair from the penetration instrument for removal of the instrument and which is further capable of injecting tissue adhesives and hemostatic agents into the tissue surrounding the hair to stabilize it and assist the healing and anchoring process.

Abstract: A surgical needle holder for curved needles, comprised of movable gripping jaws offset from a manipulating handle thereof by a distance substantially equal to the radius of curvature of the specific needle to be held thereby. The gripping jaws are positioned relative to said handle such that the curved needle, held therebetween, is rotated only through its own curvature about an axis coincident with the axis of rotation of said handle. The manipulating handle is preferably comprised of at least one section thereof having a substantially circular cross section whereby said section may be manipulatively rolled between a surgeon's fingers to rotate said needle along its curvature during suturing. Tissue trauma and tearing during such suturing are substantially reduced thereby.

Abstract: A unique circumcision device is disclosed which facilitates cutting of the foreskin of the penis and promotes complete healing of the incision without recourse to sutures and can be performed by one person without assistance.The device in its preferred form compresses in combination a male member which covers the head of the penis and has frictionally attached at one end a ring having an annular groove therein, a female member which fits over the shaft of the penis which compresses a plastic ring having a flexible wall such that its inside diameter can be increased or diminished in response to external compressive force exerted therein or removed therefrom.The male member is inserted and fits under the foreskin and the female member over the foreskin so that the plastic ring of the female member can be moved up to a positon in register which superimposes it over the ring on the male member underneath the foreskin with the foreskin caught in between the two.

Abstract: An adaptor for a cannula guide type ultrasonic transducer probe which guides a cannula along a cavity of the ultrasonic transducer probe and which holds a bag covering said probe in position which comprise a guide unit having a substantially trapezoidal back plate and a pair of side plates, said back plate having a shape complementary to the shape of a back wall of said cavity, and said pair of side plates being integrally formed with said back plate along two sides thereof; and a band unit mounted such that upper and lower free ends thereof respectively extend from upper and lower ends of said back plate, said upper and lower free ends of said band unit having engaging means, respectively.

Abstract: An apparatus for pneumatically feeding tobacco to a number of cigarette making machines having a plurality of conveyors. The conveyors feed tobacco onto a circular feed table where the tobacco is distributed to each of the cigarette machines. The table is arranged to convey the tobacco along a circular path around the vertical central axis of the table. The apparatus further includes a number of suction pipes which are circumferentially spaced with respect to the table and are arranged to pick up tobacco for delivery to respective cigarette making machines. Each cigarette making machine has a hopper for accumulating tobacco including detectors for detecting the quantity of accumulated tobacco. In addition, there is a drive mechanism associated with each pipe for moving each pipe substantially radially with respect to the table to control the rate at which tobacco is picked up from the table. Such control is responsive to the detectors.

Abstract: A self igniting device. A tube having a flammable center which can ignite by friction. A piston inserted into the tube. A string fixed to the piston so that by pulling the string the piston will slide out from the tube and so ignite the flammable center. A gas filter on the outside of the tube so toxic gases can escape through the opening of the tube into the surrounding atmosphere as the purified gases are inhaled through the tobacco by the smoker.

Abstract: A microprocessor-controlled coin handling apparatus, for example for a vending machine, has a plurality of change tubes each of which is provided with a single level sensor for determining whether or not the number of coins in the respective tube is greater than a predetermined number. The microprocessor keeps a count of the coins in the tube. When the power is turned on, the count is set to zero if the sensor indicates that the number of coins is less than the predetermined number, and is set to a predetermined "full" number otherwise. The microprocessor increments and decrements the counts as coins are delivered to and dispensed from the change tubes. Whenever the level of coins rises or falls such that the sensor output changes, the coin count is automatically corrected. Also disclosed is a non-volatile memory for storing parameters determining how the coins are handled. Keys are provided for accessing and altering the contents of the memory.

Abstract: A tent comprising a flexible porous sheet having an inner face and an outer face and a resilient frame attached to the sheet. The resilient frame is stressed so that the frame can shape the sheet into an enclosure having a peripheral wall, a closed top, an opening at the front, and a shroud for closing the opening. The shroud is of substantially greater length than the height of the opening. A peripheral region of the sheet extends from the perimeter of the enclosure to form a seal with the surface which supports the tent.

Abstract: An automatic fuel supply stopping device incorporated in fuel combustion equipment including a shut-off valve and a combustor. The automatic fuel supply stopping device comprises a fluid intercepting mechanism interposed in a channel through which the fuel supply to the combustor is supplied. A photosensor is adapted to detect fuel combustion in the combustor by radiation emitted from a thermosensitive luminous medium. The fluid intercepting mechanism alternately takes its first stable state or passage blocking state and is changed over, in response to an output from a sensor circuit, from the passage opening state to the passage blocking state.

Abstract: A fuel supply system including a fuel supply line extending from a fuel tank to a fuel supplier for delivery of fuel to an internal combustion engine. A water separator is positioned in the fuel supply line, the water separator having a chamber in which fuel and water are separated into a low phase comprising water and an upper phase comprising fuel. The water separator chamber has a first sensor for sensing a low level of water and a second sensor for sensing a high level of water. A control circuit is responsive to the first sensor for providing a warning indication urging a driver to drain the water in the water separator chamber when the water level in the water separator chamber increases to the low level. The control circuit is responsive to the second sensor for interrupting communication between the water separator and the fuel supplier when the water level in the water separator chamber increases to the high level.

Abstract: A sliding blade damper is provided with an improved seal arrangement around the blade withdrawal aperture. Two pairs of flexible sealing strips are used, mounted on either side of the aperture and pressing against the opposite sides of the blade. The unattached edges of the sealing strips are curled and bent away from the blade. The curled edges of one pair of strips hook the curled edges of the other pair, so that when the blade is inserted into the damper, the spreading apart of the first pair of strips serves to partially spread apart the second pair as well. In this manner the leading edge of the blade penetrates between the second pair of strips rather easily, lessening the chances that those strips will be bent or torn.

Abstract: A toggle gate valve having a double block and bleed retractable sealing configuration which utilizes accurately positioned steel inserts as trim assembly guide plates to permit a significant reduction in valve body machining. The valve body as well as removable upper and lower bonnets form a pressure boundary that houses a toggle link actuated seal plate to close the valve and a through-conduit that is coaxially aligned with the input and output ports when the valve is opened. A novel stem configuration and removable through-conduit permit field servicing of the trim assembly (plug and seal plate) by means of access through the lower bonnet/body interface.

Abstract: Improved apparatus for providing both a liquid level control and a low water cut-off for boilers and the like, having only a single probe and a single relay.