Abstract: A floating chemical dispenser is provided, which includes: a body portion having a first chamber for receiving solid chemicals, a second chamber for receiving a floating member, and at least one first hole for communicating the first chamber with an external environment, an opening is disposed at one end of the body portion, and the opening is communicated with the first chamber; and a cover, configured to close the opening of the body portion; wherein the cover is detachably connected with the body portion via a first locking mechanism, and the first locking mechanism has a locking position and an unlocking position, and is configured to move between the locking position and the unlocking position via pressing and rotating the cover by a user, so as to control locking or unlocking of the cover and the body portion. Therefore, safety performance of the floating chemical dispenser can be improved.

Abstract: A display apparatus includes a display panel, a needle module on the display panel, the needle module including an indicator needle rotatable with respect to a rotation axis, and a driving module to rotate the indicator needle via magnetic force.

Abstract: The present disclosure relates to a method for producing a sensor comprising the steps of: adapting a sensor adapter of the sensor element to a first section of the process connection, introducing the sensor element with the sensor adapter first into the first section of the process connection, so that the sensor element projects beyond the process connection with a second section and the first section of the process connection and the first section of the sensor element form a gap, connecting the sensor element to the process connection by creating a weld connection between the first section of the process connection and the sensor adapter of the sensor element in the region of the gap.

Abstract: A bucket level indicator mechanism for use with work machine with a front mounted loader implement includes a carriage assembly having a carriage frame comprising a carriage back and first and second carriage endplates at longitudinal ends of the carriage back, a first end of the carriage assembly being pivotably connected to one of the masts, wherein the carriage back has a slot formed therein along a portion of its longitudinal length. At least one guide rod extends between the carriage endplates. A boom height compensating link is mounted on the upper arm section. The boom height compensating link has at least one fixed traveler configured to be received in the slot in the carriage back, the carriage assembly being mounted so as to slide relative the traveler, wherein as the loader boom is raised and lowered by extension or retraction of the lift actuator, the carriage assembly rotates relative the mast about a pivot as the traveler slides in the slot in the carriage back.

Abstract: Systems for providing pipe trenching, and methods of installing the same, are disclosed. Methods of detecting one or more leaks in a pipe trench system and repairing those leaks are also disclosed. The systems may include one or more housings, which may include a trench portion, a lid, a gasket, and one or more leak detectors. The leak detectors may provide a visual indication of a leak in the one or more housings. The leak may be accurately detected, inspected, and repaired without demolition of decking material, excavation of dirt, or damage to the system or surrounding decking material.

Abstract: An indicating device, in particular a pressure gauge, including: a basic housing including a mechanism for driving a rotating needle indicator, movable relative to a dial, an interface housing attached to the basic housing, at least one rotary screen carried by the interface housing, for locating an operating area, of which the angular position can be adjusted about the axis of the needle, a protective cover removable attached to the interface housing and making it possible, when removed, to adjust the position of the rotary screen without separating the interface housing from the basic housing.

Abstract: A system and method of detecting pending failure of a septic tank drain field in order to provide remediation to reduce or eliminate the sludge buildup prior to total failure and extend the life of the drain field comprising of a sensor, alarm system. Specific action that can be taken to remediate a drain field include adding natural or engineered bacteria and/or other environmentally friendly additives that will attack the sludge and clear the way for the effluent water to drain and help to maintain a properly operating system.

Abstract: The present invention, a cap for liquids with a visible float gauge, is comprised of a hollow, cylindrical cap made of transparent material, a color coded display of levels and/or a text display, and a fixed inner cylinder. The inner cylinder is attached to the cap top at its top end. The inner piece is concentrically placed in the cylindrical cap inside of the float gauge, and a float gauge is internally retained by the cap. The cap is then screwed on to a liquid reservoir as is found on a typical internal combustion engine, whereupon the float gauge floats on the liquid and is seen through the transparent part of the cap. The float gauge is the indicator, giving a liquid level reading.

Abstract: A liquid amount measuring device 10 includes a plurality of detectors 36, 22 arranged within a vessel, each of the plurality of detectors being configured to output a first analog signal, and an output circuit 38 configured to output an analog detection signal corresponding to an amount of the liquid stored in the vessel based on the first analog signals outputted by the detectors. Each of the detectors 36, 22 includes a float 24, 32; an arm member 26, 34 configured to convert a vertical motion of the float 24, 32 to a rotational motion; and a magnetic sensor 31, 41 configured to output a second analog signal corresponding to the rotational motion of the arm member. The output circuit 38 is configured to correct the first analog signals outputted from the detectors 22, 36 and add the corrected first analog signals so as to output the analog detection signal.

Abstract: A system including a float ball, a pole, a sleeve, an indicator disk, and a dynamo circuit provides information regarding the water level in a tank, and whether fluid is flowing into the tank. The pole slides within the sleeve, through a slab above the tank. A first end of the pole is supported by the float ball, which floats within the tank, while the second end of the pole is located above the slab and supports the indicator disk. A user can detect the water level in the tank based on the height of the indicator disk. A user can also detect whether water is flowing into the tank. The dynamo circuit activates an LED located on the indicator disk when water is flowing into the tank.

Abstract: A liquid level control pump especially well adapted for use in landfill wells is disclosed. The pump makes use of a pump casing, a discharge tube, a control rod, first and second check valves, a float and a pivoting lever assembly for controlling the application of a pressurized fluid from an external pressurized fluid source. In one aspect the float may include a through slot which allows the control rod to pass therethrough and which helps to reduce the chance of the float hanging due to an accumulation of solids between the control rod and the float. In another aspect a removable and replaceable discharge tube sleeve may be included.

Abstract: A dishwasher for treating dishes according to at least one cycle of operation and having a tub at least partially defining a treating chamber and defining an access opening, a sprayer providing a spray of liquid into the treating chamber, a liquid recirculation system defining a recirculation flow path for recirculating the sprayed liquid from the treating chamber to the sprayer, and an air supply system having a conduit configured to function as an overflow conduit.

Abstract: A hydraulic control valve actuated by a diaphragm's integral spring whose thicker part acts with greater force to close the diaphragm and plug unit of the valve and whose thinner part may complete the closing motion so that the integral spring may weaken faster than linearly in relation to displacement of the diaphragm and plug unit. A snap seat supporting the plug may include a seat portion and a grip skirt portion integrally joined at an acute angle. A bracket and sliding guide may guide a helical rotor touching an indicator. Movement of the diaphragm and plug unit may rotate the helical rotor and the indicator without the indicator rising out of the valve. The cover may have an internal control passage in communication with a base of the valve to allow the cover to be installed horizontally and vertically conveniently and without disconnecting the control tubing above the valve.

Abstract: Provided is a leakage detection device using siphon principle. The leakage detection device includes a water level measuring tube that has a closed lower end portion and includes a first inflow port through which leakage water flows, a water collection tank that accommodates the water level measuring tube, a discharging pipe that includes a first inducing pipe vertically disposed in the water level measuring tube, a connecting pipe extended from an upper end portion of the first inducing pipe through a sidewall of the water level measuring tube, and a second inducing pipe extended from one end portion of the connecting pipe to a lower side of the water collection tank, a lower end portion of the second inducing pipe being disposed lower in position than a lower end portion of the first inducing pipe, and a water level measurer that detects a level of the leakage water flowed into the water level measuring tube.

Abstract: A float switch apparatus for controlling the energization of multiple electric circuits in response to the level of a liquid in a vessel, and a pump system incorporating same, are provided. The apparatus has a guide structure adapted to be mounted in a fixed position relative to the vessel. A first micro-switch with a normal and an engaged position is mounted to the guide structure and is adapted to be connected into a first electric circuit to control the energization thereof. A second microswitch with a normal and an engaged position is mounted to the guide structure at a location above the first micro-switch and is adapted to be connected into a second electric circuit to control the energization thereof. A float rod is slideably mounted to the guide structure for reciprocating movement in a generally vertical direction in a zone above a resting position.

Abstract: A fluid level indicator is provided. The indicator includes a body having a first end and a second end. The body has a first arm and a second arm extending between the first end and the second end. The first arm and the second arm defining a slot therebetween. The body further including a first plurality of teeth extending from a side of the first arm in the slot. The first plurality of teeth extending on an angle away from the first end toward the second arm. The body still further including a second plurality of teeth, extending on an angle away from the first end toward the first arm. A float member is provided having a first member and a second member with a shaft disposed therebetween. The float member being arranged with the shaft member disposed in the slot.

Abstract: An oil level display device is fitted such that a float guide accommodating a float is attached to an oil filler neck and is plugged with a float cap. To check the amount of oil, the float cap is removed and the position of the float is checked. If a sufficient amount of oil is stored, an upward force derived from oil buoyancy is larger than a downward force of the own weight of the float, from among the forces that act on the float. The float thus protrudes beyond a large-diameter portion upon removal of the float cap from the float guide.

Abstract: A sewer cleanout level indicator for use with a retrofitted conventional sewer cleanout cap. The indicator provides a visual indication of whether a sewer lateral line is blocked on the residential or private side, or the government side. The indicator includes an elongated tubular member which is slidably received by the retrofitted conventional sewer cleanout cap. The tubular member has an upper end having a circular cap attached thereto. The circular cap has a flexibly-compressible annular flange contiguously carried therebelow. A bulbous float is fixedly attached to the lower end of the tubular member. The float is responsive to a change in a level of fluid or waste water present within the cleanout riser of a conventional sewer lateral line.

Abstract: A sewer cleanout level indicator for use with a retrofitted conventional sewer cleanout cap. The indicator provides a visual indication of whether a sewer lateral line is blocked on the residential or private side, or the government side. The indicator includes an elongated tubular member which is slidably received by the retrofitted conventional sewer cleanout cap. The tubular member has an upper end having a circular cap attached thereto. The circular cap has a flexibly-compressible annular flange contiguously carried therebelow. A bulbous float is fixedly attached to the lower end of the tubular member. The float is responsive to a change in a level of fluid or waste water present within the cleanout riser of a conventional sewer lateral line.

Abstract: A sewer cleanout level indicator for use with a retrofitted conventional sewer cleanout cap. The indicator provides a visual indication of whether a sewer lateral line is blocked on the residential or private side, or the government side. The indicator includes an elongated tubular member which is slidably received by the retrofitted conventional sewer cleanout cap. The tubular member has an upper end having a circular cap attached thereto. The circular cap has a flexibly-compressible annular flange contiguously carried therebelow. A bulbous float is fixedly attached to the lower end of the tubular member. The float is responsive to a change in a level of fluid or waste water present within the cleanout riser of a conventional sewer lateral line.

Abstract: An engine includes a crankcase defining an interior volume for containing lubricant, a fill apparatus including a fill passage and a cap removably coupled to the fill passage, the fill passage defining a main conduit through which the lubricant is provided to the interior volume, a visual interface including an indicator movable in response to an amount of the lubricant in the interior volume to indicate different amounts of the lubricant in the interior volume, a float configured to float on a surface of the lubricant, and a float rod coupling the float to the indicator so that movement of the float in response to changes in the amount of the lubricant in the interior volume causes movement of the indicator.

Abstract: A cap may include a threaded inner body and an outer cover. A ratchet mechanism may be operatively positioned between the inner body and the outer cover to directly transmit rotation from the outer cover to the inner body in the cap-unthreading direction and to transmit no more than a predetermined amount of torque from the outer cover to the inner body in the cap-threading direction. A gauge assembly may include a float, an indicator dial, and a pointer. The float is supportable at a level of fluid within the container, and the pointer is movable in response to movement of the float with the level of fluid in the container. The pointer cooperates with the indicator dial to indicate the level of fluid in the container. A translucent crystal may be positioned over the indicator dial and the pointer. The crystal may be fixed relative to the inner body.

Abstract: A float switch to control at least two pumps has a guide with two normally-closed micro-switches and a float rod slidably mounted thereto allowing reciprocating vertical movement. The float rod has one or more lower cam surfaces cooperating with the micro-switches to sequentially release them from their engaged positions to their normal positions during upward movement of the float rod. A float is slidably mounted to the float rod between upper and lower float stops. The shape of the lower cam surfaces is such that the weight of the float rod is insufficient to allow the float rod to move downwardly against resistance provided either by the first micro-switch or separately by the second micro-switch and the weight of the float rod combined with at least a portion of the weight of the float is sufficient to overcome either such resistance and to move the float rod downwardly.

Abstract: A fluid level indicator device that attaches to a fluid fill nozzle of an existing fluid tank is disclosed. The device is comprised of a frame assembly that removably attaches to the fluid fill nozzle and a float assembly that is attached to the frame assembly. The first embodiment is comprised of a frame assembly that springingly and snugly fits in the interior of the fluid tank. In a second embodiment, the frame assembly is comprised of an angular hollow tube and a threaded slip that attaches the angular hollow tube to the fluid fill nozzle, and a narrow hollow tube that accommodates the float assembly. In the embodiments presented herein, the level for the float assembly visible above the top of the frame assembly indicates the relative level of the fluid in the tank. Various embodiments add indicia to the float assembly and set the relative fluid level to be the actual fluid level.

Abstract: A floating dispenser is provided for dispensing a solid, dissolvable water treatment chemical into ambient water. The dispenser includes a bucket having top and bottom ends, a top wall covering the top end, an opening for admitting ambient water into the bucket interior, and a floatation ring that keeps only the top end above water such that the interior is water filled when the dispenser floats. A basket is disposed in the interior of the bucket for carrying a solid, dissolvable water treatment chemical, such as calcium hypochlorite. The basket is buoyant and movable vertically toward the top wall of the bucket. The dispenser includes a refill indicator that indicates when most of a full load of said chemical has dissolved. The refill indicator includes a pair of tabs that are connected to the basket and slidably mounted in slots in the top wall.

Abstract: A gauge assembly includes an indicator for providing an indication of an amount of fluid in a tank and a stop-fill assembly for stopping the flow of fluid flowing into the tank once the fluid reaches a particular level. The gauge assembly has a shaft that rotates as the fluid level changes in the tank. The indicator translates the rotational position of the shaft into a fluid level. The stop-fill assembly moves from an open position, where fluid can flow into the tank, to a closed position, where fluid is prohibited from flowing into the tank, depending on the rotational position of the shaft.

Abstract: A medical respiratory apparatus includes a chamber (10) which is at least in part at least translucent. The chamber (10) includes a float member (12) formed of an inert material and contains, in use, a fluid intended for inhalation. The float member (12) is adapted to float upon the fluid intended to be contained within the chamber (10) and has a peripheral dimension adjacent, but less than, the internal peripheral dimension of the chamber (10). At least the outer peripheral surface of the float member (12) has a coloration distinct from that of the fluid to be contained within the chamber such that the level of the fluid within the chamber (10) can be readily observed.

Abstract: A fuel gauge is adapted to extend into a fuel tank to enclose liquid fuel in the fuel tank and to sense the level of liquid fuel in the fuel tank. The fuel gauge includes a fuel-level indicator having a needle and a buoyant float exposed to the liquid fuel in the fuel tank. The needle moves in response to changes in the level of liquid fuel in the fuel tank sensed by the buoyant float.

Abstract: A clogging indicator for a fish tank or aquarium comprising a transparent vertical tube with a float positioned therein. The indicator is designed to sit on the outside of the tank and the filter itself. The water level in the tube is lowered and raised according to the amount of water with a rear chamber of the filter. Indicating marks are located on the tube to visually display normal or clogged operation. Backup water from a clogged filter will raise the water level in the rear chamber and thus also the indicator tube. As the water level rises, the float raises toward a warning indicator mark to indicate the need for filter changing.

Abstract: A gutter system includes an indicator for indicating that the gutter system is clogged or partially clogged. The indicator includes a floating device such as a ball. There is provided a retainer that retains the ball within the gutter system and in the vicinity of a downspout and downspout opening that forms a part of a gutter system. The retainer comprises a housing of an open construction and includes a bottom, sidewall structure and a top portion. Since the housing is an open construction, water passing through the gutter can normally flow through the housing. When the gutter system is clear and does not have any substantial obstructions, it follows that the water accumulation within the gutter will be relatively small. However, when the gutter system is clogged or partially clogged, then there will be some accumulation of water in the gutter system. When there is accumulation of water, the floating device will float to an upper elevated position where the same can be seen from ground level.

Abstract: An illuminated rain gauge comprising an elongated, transparent collection vessel or tube having upper and lower ends with the lower end thereof being closed by a plug and which has a funnel-shaped collector at the upper end thereof. The plug has a battery compartment formed therein for receiving a DC battery power source. A pair of LEDs are operatively connected to the battery power source and are positioned on the plug so as to direct light upwardly therefrom to illuminate the rain gauge. The electronic circuitry of the gauge is positioned within the plug and is controlled by a remote IF control device which signals an IF receiver positioned on the plug. The LEDs direct light onto the collection vessel so that the rainfall amounts may be determined during periods of darkness.

Abstract: The various embodiments of the present invention generally include a display device having a surface with indicia formed thereon. The indicia are indicative of at least one vehicle parameter. The display device includes a light guide connected to the surface and a light-reflecting portion formed in the light guide. The light-reflecting portion is disposed at least partially over one of the indicia. The light guide collects light, directs the light toward the light-reflecting portion and illuminates at least one of the indicia. The light guide and the light reflecting portion provide an enhanced or decorative effect for one or more of the indicia.

Abstract: An improved sewer backup indicator. The sewer backup indicator is installed into a sewer cleanout cap housing which comprises a pop-up device that detects and holds the detection of a back up in the sewer system, which is due to number of reasons. This invention helps to determine a problem in the sewer system and where the problem would most likely be making it quicker to resolve the problem so that a sewer spill could be prevented. In general, this invention will prevent sewer spills, law suits, and prevent the endangerment of our wild and aquatic life. My invention is basically is to protect our environment and our water supply.

Abstract: An alarm Abstract is provided for a bathtub and includes a method for attaching to a wall of the bathtub, one being a suction cup. A float assembly is supported by the alarm housing to engage the alarm system. To use the alarm apparatus of the invention in a bathtub, one of the three attachment methods is used to secure the housing to the wall of the bathtub. The float is adjusted to the desired height. Water is added to the bathtub, which turns a waterwheel, and when the water level lifts the float assembly a sufficient amount, the alarm system is activated and sounds a warning alarm. The alarm system includes a waterwheel that's is spinning, a thin flat plastic bar that is attached to the float. The float raises the thin plastic bar into the waterwheel thus making a loud clicking sound.

Abstract: Disclosed is a temperature indicating method and device. The device embodies a sealed tube containing a liquid and a float. The tube has markings on the exterior indicating temperature zones or, in the alternative, temperature gradients. The method disclosed includes inverting the tube such that the indicator drops to the bottom of the tube and freezing the device at the appropriate temperature level. In use, the device is placed right side up in a container along with other items for which the highest temperature level arrived at is desired to be known. Upon warming, the liquid in the tube melts and the float drops through the liquid to the freezing level of the liquid. By removing the device from the container and comparing the float level in the tube to the markings on the exterior of the tube, the highest temperature or temperature zone that the contents of the container were subjected can be determined.

Abstract: A liquid level sensor-switch capable of effectively reducing variations in levels detected depending on directions in which it is inclined. The sensor-switch has a case, a guide rod formed therein, a float mounted on the guide rod with a clearance and being movable in the vertical direction along the guide rod in the case, an electrode plate attached to the bottom of the float and a pair of terminals disposed on both sides of the guide rod on the inside bottom of the case, wherein the float moves downward as the level of liquid lowers and it detects a specified low level by contacting the electrode plate with the paired terminals to make conductive a circuit formed between the terminals. It is featured by the fact that a pair of protrusions for restricting a biased movement of the float with respect to the guide rod are provided on both sides of the guide rod on the inside bottom of the case in a direction with a specified angle to a direction of arrangement of the paired terminals.

Abstract: A float adapted to track an interface between two liquids of differing density, includes a hollow buoyant body having an interior cavity adapted to retain liquid. At least one upper access opening is provided in the body, which is adapted to permit filling of the interior cavity with liquid. The interior cavity is capable of holding sufficient liquid to retard the buoyancy of the body. By filling the interior cavity with a liquid of a first density, the hollow buoyant body can be made to float at an interface with a lighter liquid of a second density.

Abstract: An automatic barricade includes a trench across a road that is covered by a grate allowing vehicular traffic during normal dry weather. Inside the trench is a series of barricade elements, each of which includes a float. When rising water fills the trench to a predetermined level, each float rises and elevates the elements above the road. The barricade elements are sufficiently robust and intimidating to deter motorists from driving over them but are spaced apart to be light enough to be easily actuated by the float. The barricade elements are sufficiently close together that vehicles cannot pass between them. In another embodiment, a sensor is adjacent the trench to detect rising water and communicates with a motor connected to the barricade elements for raising them to a traffic blocking position.

Abstract: A device used with fluid canisters comprising a transparent body allowing the viewing of movement within the body having a minor and major cavity with a float indicator and float seat within the minor cavity. An inhaler top and bottom fits each end of the body forming an airtight chamber within the major and minor cavity above the float, the top having a seat to accept a canister and a nozzle aperture to accept a nozzle of the canister oriented to release fluid from the canister into the major cavity. An inlet through the minor cavity below the seat maintains pressure equal to pressure outside of the body within the minor cavity. Inhalation through a mouthpiece and one way valve reduces pressure within the major and minor cavity above the float drawing fluid through the one way valve creating a pressure difference across the float causing it to move.

Abstract: A filter cartridge end-of-life mechanism and a filter cartridge assembly for a water treatment device. The end-of-life mechanism comprises a float which is moved along an escapement path each time the device is filled. A counting mechanism connected to the float provides a continuous visual indication of the amount of useful life remaining in the filter cartridge. The cartridge assembly includes a tray detachably connected to a filter cartridge. The tray is positioned beneath the outlet end of the cartridge to remove water treatment particles from the treated water.

Abstract: A tank liquid level or volume gauge for use with volatile materials, such as propane, stored under pressure as liquid and released as gas, includes a float with a float magnet that couples with a liquid level indicator magnet across a fluid impermeable wall to provide indication of tank liquid level or volume. In another embodiment, when a predetermined tank liquid level or volume is reached during filling, the float actuates an inlet closure valve to increase inlet flow resistance, creating a shutoff signal.

Abstract: A fill level indicator assembly for an agricultural material bin such as a seed dispensing hopper. The assembly includes an elongate sighting member which provides a water impermeable cover over an indicator opening in the bin cover and has a transparent portion providing visual access to the interior of the sighting member. An indicator rod extends through the indicator opening and has a distinctive marking located near one end. The opposite end of the indicator member has a foot which engages the agricultural material within the bin. Gravity causes the indicator member to lower as the quantity of agricultural material within the bin is depleted. As the indicator member lowers, the distinctive marking within the sighting member is also lowered thereby providing a visual indication of the quantity of material remaining in the bin.

Abstract: A liquid level measuring apparatus is provided, which includes an input circuit configured to receive electrical signals from level sensors configured to provide an electrical signal proportional to a liquid level in a tank portion. The input circuit provides a single output signal proportional to the combined liquid level in one or more liquid storage vessel portions. The apparatus may further include or be connected to a transmitter such as a wireless transmitting device.

Abstract: A fill level indicator assembly for an agricultural material bin such as a seed dispensing hopper. The assembly includes an elongate sighting member which provides a water impermeable cover over an indicator opening in the bin cover and has a transparent portion providing visual access to the interior of the sighting member. An indicator rod extends through the indicator opening and has a distinctive marking located near one end. The opposite end of the indicator member has a foot which engages the agricultural material within the bin. Gravity causes the indicator member to lower as the quantity of agricultural material within the bin is depleted. As the indicator member lowers, the distinctive marking within the sighting member is also lowered thereby providing a visual indication of the quantity of material remaining in the bin.

Abstract: A drain alert device for detecting an overflow condition in a drainage system having a drain conduit, wherein wastewater is received through an inlet of the drain conduit, is provided, comprising an overflow conduit extending horizontally from the drain conduit below the inlet. The overflow conduit leads to an overflow detection device which includes a vessel having an internal volume sufficient to contain an amount of overflow wastewater. A buoyant member having an elongated, substantially vertical, overflow indicator resides within the vessel, and the overflow indicator is guided by a guide tube extending above the vessel. Thus, the overflow indicator reveals the extent of an overflow condition by protruding through the guide tube in response to the level of wastewater within the vessel. The vessel further includes a drain port having a threaded coupling capable of receiving a conventional flexible hose so that the appliance may be operated despite obstructions in the drain conduit.

Abstract: A fuel gauging system for a motor vehicle fuel tank, including a housing (100) supporting a resistive element (200), an arm (300) pivotally mounted on the housing (100) and comprising at least one cursor (350) engaging the resistive element (200), and a lever (400) provided with a float connected to the arm (300) for monitoring the movements thereof. The system includes a housing (100) and an arm (300) which comprise complementary rotational guides (120, 310) and structure (316, 317, 318, and 319) to enable translation of the arm (300) on the housing (100). The arm (300) is combined with an L-shaped lever (400) so that one of the sections (420) defines the pivot axis of the device.

Abstract: A fluid filtration system includes a mechanism for monitoring and indicating the volume of fluid that has passed through a filter 30. The mechanism includes a channel 42 in communication with a reservoir 22, a portion of which is visible exteriorly of the housing 12. The channel allows a minor portion of the fluid entering the housing via inlet 14 to flow into the reservoir, while allowing the remaining portion of fluid to flow through the outlet 16. The minor portion of fluid entering the reservoir may or may not have passed through the filter. In various embodiments, the system may also include an indicator such as a float 44, a plunger 54, or dye.

Abstract: An oil spill prevention apparatus for use with for a domestic oil storage tank has a catchment tray e located underneath an oil storage tank and extending over the entire footprint thereof. The catchment tray has a depression for pooling oil caught by the catchment tray. A level sensor for raises an alarm when the oil level in said depression exceeds a threshold value.

Abstract: A sensing device and sensing process is described for indicating movement of earthen material adjacent a structure. The preferred device includes a tubular frame including a top end and a bottom end. An anchor is configured to suspend the frame from the structure with the bottom end oriented toward the earthen materials. An actuator is releasably mounted on the bottom end of the tubular frame, spanning the bottom end and configured to rest against and be supported by the earthen materials. The actuator is movable in response to movement of the earthen material relative to the structure from an inoperative position engaging and spanning the bottom end of the tubular frame to an operative position spaced from the inoperative position. A signaling device is mounted within the tubular frame and connected to the actuator.

Abstract: A guide device for attachment adjacent the rear of a boat trailer to assist the driver of a towing vehicle in backing the unloaded trailer into the water. The guide device includes a mounting bracket for attaching the device onto a rear part of the boat, such as onto the front face of the rear lateral frame member, and a signal member mounted on the bracket and pivotal between raised and lowered positions. The signal member includes an elongated staff above the bracket and a flotation element attached to the lower end of the staff beneath the bracket. The flotation element is lighter than water, and has a weight greater than the weight of said staff. When the trailer is out of the water, the staff is pivoted by the weight of the flotation element to a generally vertical position. When the rear of the trailer is backed into the water, the flotation element rises to pivot the staff to a generally horizontal position.