In a method for operating a surface treatment installation, overspray produced in a coating booth is taken up by an air stream and carried to one or more one-way filter modules, in which overspray is separated. Once a limit loading with overspray is reached, a one-way filter module is exchanged for an empty one-way filter module. Depending on the nature and characteristics of the overspray, the one or more one-way filter module(s) may be chosen from a set of different one-way filter modules. A set of filter modules for use in a surface treatment installation is provided having various filter modules formed as exchangeable one-way structural units with a module housing and a filter unit. The module housings of the various filter modules have the same-connection module inlets and the same-connection module outlets and at least the filter units of two different filter modules are formed differently.

The purpose of the present invention is to provide a determining device and a determining method to determine whether an inspected jet nozzle is defective by inspecting the jet nozzle for injecting a jet stream with long ground penetrating distance at a stage before installing in a construction site where a large diameter jet grouting method is used. To achieve this purpose, with this invention, in which a nozzle to be inspected is mounted onto an outlet port, a jet stream is ejected from a jet stream generating device, and measurement data measured by a pressure sensing unit when the jet stream impacts the pressure sensing unit is processed with a controlling device (for example, a computer), a nozzle to be inspected is determined to be a non-defective product if a first ratio is no less than a first prescribed value, a second ratio is no less than a second prescribed value, and a third ratio is no less than a third prescribed value.

A pump system may include a blown-in dip tube connected to a valve body and having a connection which may include an improved blown-in dip tube connector having one or more of a lip for sealing with a blown-in dip tube, a seal ring configured to mate with a blown-in dip tube and seal therewith, a dip tube lock for mating with a blown-in dip tube, or an o-ring for providing an improved seal with a blown-in dip tube.

An airless pump container equipped with an impregnated member and an absorbing member includes: a container main body (10); a pushing plate (20); an impregnated member (30) installed inside of the container main body (10); a shielding member (40); a pump holder (60) coupled to the upper portion of the shielding member (40); an airless pump (50) installed on the inside of the shielding member (40) and the pump holder (60); an absorbing member holder (70) coupled to the upper end of the airless pump (50); an absorbing member (90); and a moving member (100) for fixing the absorbing member (90). The impregnated member is impregnated with content in a gel-state.

A sprinkler head protector and a sprinkler head protector and sprinkler head combination are described. A flexible nonwoven geotextile sprinkler head protector has an opening therein sized to allow said protector to be pulled by hand over a slightly larger outer dimension of a sprinkler head. Once installed, the outer portion of the sprinkler head protector is trapped under the outer edge of the sprinkler head. Among its several purposes, the sprinkler head protector blocks vegetation from overgrowing or growing into the sprinkler head, prevents or reduces vegetation growth in the immediate vicinity of the sprinkler head, provides physical support to the sprinkler head, helping it maintain its proper vertical alignment, and provides a physical barrier to stop sand and dirt from entering the interior of the sprinkler head.

A fluid pump apparatus includes a multi-chamber pump mechanism, with an actuator having a nozzle portion defining a nozzle chamber that has a controlled opening through a discharge valve, which is calibrated to open in response to a fluid pressure in the nozzle chamber exceeding the threshold pressure.

A protective cover for a fire protection sprinkler includes a pair of sidewalls and an orthogonal wall structure connected to an upper edge of each of the pair of sidewalls. The orthogonal wall structure including a slot therein that opens along an edge of the orthogonal wall structure in alignment with an opening between the pair of sidewalls. The slot including a pair of side edges including a pair of opposing arcuate regions adapted to engage a deflector mounting boss of a fire protection sprinkler. An arcuate sidewall extends from the orthogonal wall structure and an upper wall extending inward from an upper edge of the arcuate sidewall and opposing the orthogonal wall structure to define a cavity that is adapted for receiving a deflector of a fire protection sprinkler.

Various embodiments are directed to a fluid container comprising at least two fluid dispensing paths, wherein the fluid container comprises a container body and a fluid dispenser, wherein the fluid dispenser comprises a dispenser body connected to the container and a bottom portion enclosing the container. The dispenser body comprises a flow path extending through the bottom portion to a flow path exit, and a conduit aperture extending through the bottom portion and configured to accept a flexible conduit therein. A dispenser cap is operably connected to the dispenser body, wherein the dispenser cap comprises a fluid pump configured to pump fluid from the container via the flexible conduit. The dispenser cap is operable between a closed configuration in which the flow path exit is sealed and an open configuration in which the flow path exit is open, enabling fluid to flow out of the container via the flow path.

A trigger dispenser device (1) envisages a secondary liquid aspiration duct (50) in communication with the dispenser duct, and a primary liquid aspiration duct (8) in communication with the container, off-axis with each other. Between these, a joining compartment (64) is provided communicating upstream with the primary liquid aspiration duct (8) and communicating downstream with the secondary liquid aspiration duct (50) to form the fluidic connection between them. In particular, the container (C) is of the type with built-in suction pipe.

A fluid dispenser comprising:

a reservoir (1);

a dispenser head (T) that is provided with a dispenser orifice (62);

a dip tube (22) that conveys the fluid from the reservoir (1) to the dispenser head (T);

a pusher (6) that is axially movable over a determined stroke;

an electric pump (4) that delivers air into the reservoir (1) so as to force the fluid through the dip tube (22) as far as the dispenser head (T), the electric pump (4) being actuated by the pusher (6); and

a fluid outlet valve (7);

the fluid dispenser being characterized in that:

all of the air coming from the electric pump is delivered into the reservoir;

the electric pump (4) is activated by the pusher (6) as soon as it leaves its high rest position, and the outlet valve (7) is opened only in the proximity of the low depressed position, such that the electric pump (4) is electrically powered well before the outlet valve (7) is opened; and

the electric pump (4) delivers air into the reservoir (1) with an increase in pressure that is less than 1 Bar.