Abstract: A float switch used for system shut-off and/or alarm activation in response to fluid detection. A clamp connects the switch's protective housing to a fluid-collection pan wall, with the switch comprising a pivoting float assembly having a magnet originally positioned out-of-phase to an upper magnet on a toggle, a contact spring and ferrous pin also diminishing attraction of the magnets toward one another until the float assembly is sufficiently raised by accumulated fluid to force the upper magnet away from the ferrous pin and instead engage the lower magnet, the toggle promptly shifting position so that its opposite end may close a circuit that activates an alarm, remote notification, or other communication/control. The exponential increase in attractive force between the magnets as they draw near to one another results in a very rapid snap action that reduces malfunction. Manual reset of the toggle and float are required for continuing/repeat use.

Abstract: A molded equipment pad having a top deck, side walls, underlying reinforcing radial ribs, and underlying reinforcing arc-shaped ribs. The arc-shaped ribs may include a series of concentric arc-shaped ribs that are centered on the center of the equipment pad and that extend toward the side walls of the pad and a number of distributed circular hubs. Alternatively, the arc-shaped ribs may include a series of concentric arc-shaped ribs that are centered on the center of the equipment pad that end short of the side walls, a series of opposing arc-shaped ribs that are centered on the corners of the equipment pad, and a number of distributed circular hubs.

Abstract: A method comprises: causing a volume of a material in an uncured state to be input into a container; causing a plurality of spikes hosted via a lid to extend into the volume of the material in the uncured state within the container such that the lid closes the container and the lid faces the volume of the material; causing the volume of the material within the container to change from the uncured state to a cured state within the container while the lid is closed such that the volume of the material in the cured state within the container secures the lid to the container via the spikes; and causing an outdoor HVAC condenser unit to rest on the container such that the volume of the material in the cured state within the container extends between the outdoor HVAC condenser unit and the lid.

Abstract: A small compact magnetic latching shut-off switch having a lightweight float, angled geometry, and quick/convenient small-stroke manual float reset. A lower float magnet and a second upper magnet affecting electrical circuit continuity have initial offset positioning that minimizes their magnetic attraction to one another. When a predetermined small amount of fluid accumulates below it, the float begins forward rotation and attraction between magnets thereafter multiplies until gravitational force on the float and forces maintaining initial raised positioning of the upper magnet are overcome, resulting in strong latched snap-lock connection between upper and lower magnets, an abrupt/reliable/strong tripped state that remains until manual float reset occurs. Transparent float housing reveals drain line clogging potential, and structural features of the float and housing enable raised tripping point adjustment, promoting switch reliability.

Abstract: A drain gun includes a handle and a trigger. The handle includes a channel and a plurality of inlets. The inlets feed the channel. The trigger causes a staged release of a plurality of fluids from a plurality of cartridges to the channel via the inlets when the cartridges are stored in the handle and feeding the inlets.

Abstract: A device comprises: a plurality of tubular members; a plurality of nodes configured to be assembled with the tubular members and thereby form a frame configured to support an outdoor equipment item thereon; and a plurality of augers configured to be driven through the nodes into a ground such that the frame is secured to the ground when the frame supports the outdoor equipment item.

Abstract: A system for combining and spraying fluids that includes a principal reservoir for holding a carrier fluid; an electric pump in communication with the principal reservoir; a power source for energizing the pump selectable between a rechargeable 12-volt battery and a 110-volt AC line; at least one auxiliary reservoir for holding an auxiliary fluid to be controllably mixed with carrier fluid being drawn from the principal reservoir; a selector valve for selecting which if any of the auxiliary fluid(s) are to be combined with the carrier fluid; a Venturi tube for combining streams of carrier fluid and selected auxiliary fluid(s) in a predetermined ratio which may be varied as desired; and a spray wand in fluid communication with the Venturi tube for discharging the selected fluids.

Abstract: A hydraulic tube expander includes expanding jaws engageable with an interior surface of a tube to expand the tube; a source of hydraulic fluid, a valve located between the source and the expanding jaws and a single-action release actuator operatively coupled to the valve. The valve is moveable between open and closed positions. In the closed position, hydraulic fluid can pass from the source to the expanding jaws and in the open position the hydraulic fluid can pass from the expanding jaws to the source. The actuator is movable between first and second positions. In the first position the valve is in the closed position. Movement of the actuator in a direction from the first position toward the second position moves the valve into the open position.

Abstract: A projectile launching apparatus for cleaning the inner surface of a tube by forcing a projectile through the tube, comprising: a main body containing a breech chamber terminating in an exit port, wherein the breech chamber is provided with a loading port in a side thereof for radially loading a projectile into the breech chamber; a slide disposed on an exterior surface of the main body, the slide being axially movable between a first position wherein the loading port is exposed for loading of a projectile into the breech chamber and a second position wherein the loading port and the breech chamber are sealed; a gas gun operatively connected to the main body in pneumatic communication with the breech chamber; and an exit nozzle connected to the exit port and being connectable to a first end of the tube to be cleaned.

Abstract: A hydraulic tube expander includes expanding jaws engageable with an interior surface of a tube to expand the tube; a source of hydraulic fluid, a valve located between the source and the expanding jaws and a single-action release actuator operatively coupled to the valve. The valve is moveable between open and closed positions. In the closed position, hydraulic fluid can pass from the source to the expanding jaws and in the open position the hydraulic fluid can pass from the expanding jaws to the source. The actuator is movable between first and second positions. In the first position the valve is in the closed position. Movement of the actuator in a direction from the first position toward the second position moves the valve into the open position.

Abstract: A drain gun includes a handle and a trigger. The handle includes a channel and a plurality of inlets. The inlets feed the channel. The trigger causes a staged release of a plurality of fluids from a plurality of cartridges to the channel via the inlets when the cartridges are stored in the handle and feeding the inlets.

Abstract: A valve core removal tool can include a shaft having a proximal end and a distal end. A valve core gripper can be coupled to the distal end of the shaft and can include a first valve core engaging surface and an opposing second valve core engaging surface spaced therefrom. The first and second valve core engaging surfaces can be flexible and movable relative to each other between a first position, where the free ends of the first and second valve core engaging surfaces are spaced apart a first distance, and a second position, where the free ends of the first and second valve core engaging surfaces are spaced apart a second distance that is greater than the first distance. The first and second valve core engaging surfaces can be spring-biased in the first position for gripping a valve core between the first and second valve core engaging surfaces.

Abstract: A universal line components duct elbow (universal elbow) accommodates a variety of condensate tanks. The universal elbow includes an elbow base, an elbow cover, and an interface clip. The interface clip is releasably connected to the bottom wall and sidewalls of the elbow base and adapted for supporting a condensate tank within the universal elbow. In order to releasably connect the interface clip to the bottom wall of the elbow base, the bottom wall of the elbow base includes an elbow base/clip securing structure that engages a complementary clip/elbow base securing structure on one side of the interface clip. In order to secure the condensate tank within the universal elbow, the interface clip has a clip/tank securing structure on the opposite side that engages the structure of the condensate tank.

Abstract: An HVAC line set duct system includes a line set duct with a channel clip. The duct houses an HVAC line set and includes a channel connector for slidably securing the channel clips along the length of the line set duct. The channel clips have collars that engage tie wraps that in turn secure the HVAC line set to the line set duct. The channel clips are installed onto the line set channel connector by exerting a force perpendicular to the length of the line set duct so that the channel clips snap onto the channel connector and slide along the channel connector.

Abstract: A condensate overflow detection device includes a frame, a housing, an affixing device, a surface placement mechanism, a float and an actuator. The housing has a bottom and a plurality of pan engagement side surfaces extending upwardly from the bottom, each of which is disposed at a different angle relative to the bottom surface. The housing defines a vent structure passing therethrough that allows water to pass into the housing. The affixing device clamps a pan engagement side surface to a sidewall of a secondary condensate pan. The surface placement mechanism places one of the pan engagement side surfaces opposite from the affixing device. The float, disposed within the housing, has a first position when no water has entered the housing and a second position when a predetermined level of water has entered the housing. The actuator causes an event when the float is in the second position.

Abstract: A liquid level detection device includes a signal source for generating one or more unique signals on low impedance signal electrodes, a lock-in amplifier, and a reference signal directly connecting the signal source to the lock-in amplifier. The unique signals generated by the signal source are connected to one or more low impedance signal electrodes. The low impedance signal electrodes may be positioned at different levels inside the tank so that at any given level of liquid in the tank, each low impedance individual electrode may or may not be in contact with the liquid in the tank. Alternatively, the low impedance signal electrodes may be attached to the external wall of the tank at different levels. An antenna is connected to an input of the lock-in amplifier. The antenna may be placed inside the tank at the lowest level for the liquid, or the antenna may be attached to the outside wall of the tank near the bottom of the tank.

Abstract: A molded equipment pad having a top deck, side walls, underlying reinforcing radial ribs, and underlying reinforcing arc-shaped ribs. The arc-shaped ribs may include a series of concentric arc-shaped ribs that are centered on the center of the equipment pad and that extend toward the side walls of the pad and a number of distributed circular hubs. Alternatively, the arc-shaped ribs may include a series of concentric arc-shaped ribs that are centered on the center of the equipment pad that end short of the side walls, a series of opposing arc-shaped ribs that are centered on the corners of the equipment pad, and a number of distributed circular hubs.

Abstract: A condensate overflow detection device includes a frame, a housing, an affixing device, a surface placement mechanism, a float and an actuator. The housing has a bottom and a plurality of pan engagement side surfaces extending upwardly from the bottom, each of which is disposed at a different angle relative to the bottom surface. The housing defines a vent structure passing therethrough that allows water to pass into the housing. The affixing device clamps a pan engagement side surface to a sidewall of a secondary condensate pan. The surface placement mechanism places one of the pan engagement side surfaces opposite from the affixing device. The float, disposed within the housing, has a first position when no water has entered the housing and a second position when a predetermined level of water has entered the housing. The actuator causes an event when the float is in the second position.

Abstract: Embodiments provide improved flaring and swaging bits, and methods for flaring and swaging.