Abstract: A cylindrical or inverted frustoconical eccentric roundel structure for a compressing diaphragm pump includes an annular positioning groove, a vertical or frustoconical flank and a sloped top ring extending between the annular positioning groove and the vertical or inverted frustoconical flank. By providing the sloped top ring, the oblique high frequency pulling and squeezing phenomenon that occurs in a conventional tubular eccentric roundel is completely eliminated.

Abstract: A four-compression-chamber diaphragm pump with multiple effects includes an eccentric roundel mount with four cylindrical eccentric roundels, a pump head body with four operating holes, and a diaphragm membrane with four annular positioning protrusions. A basic curved groove or other vibration-reducing first positioning structure is circumferentially disposed around each operating hole while a basic curved protrusion or other second vibration-reducing second positioning structure is provided in the diaphragm membrane for suitably coupling with the corresponding groove or other first positioning structure upon assembly, resulting in a shortened length of moment arm from the basic curved protrusions or other vibration-reducing positioning structures to respective downwardly-extending annular positioning protrusions in the diaphragm membrane, and consequently reduced vibration noise and resonant shaking in comparison with a conventional four-compression-chamber diaphragm pump.

Abstract: The present invention provides a five-compressing-chamber diaphragm pump with multiple effects, which comprises an eccentric roundel mount with five cylindrical eccentric roundels, a pump head body with five operating holes, and a diaphragm membrane with five annular positioning protrusions. A basic curved dent is circum-disposed around each operating hole while a basic curved protrusion is circum-disposed around each corresponding annular positioning protrusion for suitably coupling upon assembly. A short length of moment arm from the basic curved protrusions to the annular positioning protrusion is obtained. By the pump head body and diaphragm membrane, the present invention solves harassing noise and vibrating resonant shakes in the conventional five-compressing-chamber diaphragm pump. The cylindrical eccentric roundel comprises a sloped top ring created from an annular positioning dent to a vertical flank in the eccentric roundel mount.

Abstract: The present invention provides a hand held shower head with filter replacing pre-alarm device, which comprises a round recess socket containing a detachable alerting pod is created in the reverse side of a shower head shell. A signal circuit device is embedded in the alerting pod for measuring and displaying function. The alerting pod can be either inserted into the recess socket for normal measuring and alerting function or detached off the recess socket for battery recharging operation. Thereby, not only the shower head shell can be adequately powered but also the alerting pod can be separated out of the shower head shell for independently recharging operation so that the entire shower head shell is unnecessary to discarded and replaced even the DC power supply in the signal circuit device is running out. Thus, it not only saves resource waste but also conserves economical expense incurred by frequent replacement of the shower head.

Abstract: A hand held shower head with filter replacing pre-display device comprises a round recess socket with hoop female threads created into the reverse side of a shower head shell to let an alerting pod screwing mesh therein. A signal circuit device is embedded in the alerting pod for measuring and displaying function. The alerting pod can be either screwing meshed into the recess socket for normal measuring and alerting function or screwing detached off the recess socket for battery recharging operation. Thereby, not only the shower head shell can be adequately powered but also the alerting pod can be separated out of the shower head shell for independently recharging operation so that shower head shell is unnecessary to discarded and replaced even the power supply in the signal circuit device is running out. Thus, it not only saves resource waste but also conserves economical expense incurred by frequent replacement of the shower head shell.

Abstract: A vibration-reducing structure for compressing diaphragm pump features a pump head body and a diaphragm membrane. The pump head body includes three operating holes and a first curved vibration-reducing positioning structure circumferentially disposed around the upper side of each operating hole. The diaphragm membrane includes three equivalent piston acting zones and second curved vibration-reducing position structures situated at positions corresponding to the positions of the first curved vibration-reducing positioning structures. The first positioning structures in the pump head body, which may be grooves, slots, perforations, or protrusions, mate with the corresponding second positioning structures in the diaphragm membrane to reduce the moment arm generated during pumping by movement of the diaphragm membrane, which may be protrusions, grooves, slots, or perforations, thereby generating less torque to decrease the strength of vibrations and vibration noise.

Abstract: A vibration-reducing method for reducing vibrations and vibration noise in a compressing diaphragm pump includes the step of disposing a vibration-reducing unit between the pump head body and a diaphragm membrane to reduce a length of the moment arm, and therefore of the torque, generated upon up and down movement of the diaphragm membrane during pumping.

Abstract: A manufacturing method and structure of a heat exchanger for a bathing shower involves two plates welded together to form a passage for cold water. Hot water from the shower drips onto the upper plate and transfer heat to cold water flowing through the passage between the plates. The upper plate may be spot welded to the lower plate at bottoms of frustoconical indentations in the lower plate, the plates may sandwich an adiabatic layer, and/or the passage between the plates may be formed by pipes situated between the plates.

Abstract: The present invention provides a wall-mounted kitchen-cabinet with storage of non-potable water out of reverse osmosis (RO) water treating machine comprising a case body of kitchen-cabinet, a water storage tank, a cover of water storage tank, an inlet pipe and an outlet pipe. The water storage tank is contained in the case body of kitchen-cabinet for storage of the non-potable water output from the reverse osmosis (RO) water treating machine. The outlet pipe includes a front opening and an end opening such that the end opening connects to a water stopcock while the front opening connects to the water outlet of the water storage tank via the pipe outlet of the case body of kitchen-cabinet. By means of the water stopcock to get the non-potable water, user can achieve the effect in fully usage the non-potable water by habitually practice of washing cooking materials or washing hands.

Abstract: The present invention provides a vibration reducing device for pump cover body of water shut-off diaphragm pump comprising a hood cover mount and a pump cover body with a containing pit, which orderly accommodates a plastic elastic membrane disk, an obstructing baffle and a compressed spring therein. The plastic elastic membrane disk includes a downward central flow directing buffer, which can insert into a flow directing compartment in the containing pit when the hood cover mount docks with the pump cover body. The flow directing buffer can not only absorb the direct impacting momentum of pumped high pressurized water to the surrounding internal wall of the flow directing compartment but also redirect the random impacting direction of the high pressurized water. Thus, the vibration of the pump cover body with annoying noise created by the impacting momentum of the high pressurized water is deleted.

Abstract: A compressing diaphragm pump having abnormal pressure preventing features for spray use has a hollow tubular air discharge assembly having a plunger body and compressed spring as well as an air passage pierced at the wall of the water exit port and an air discharge orifice pierced of the central top surface of the air discharge assembly for connecting with the plunger body. When air is mixed within the pressurized water, the resilient force of the compressed spring is bigger than the water pressure of the pressurized water. This allows the air mixed in the pressurized water to get into the air passage and pass the plunger opening of the plunger body via through pore, and is dispelled out of the upper hood via the air discharge orifice of the air discharge assembly.

Abstract: A hand held shower head with filter replacing pre-display device comprises a round recess socket with hoop female threads created into the reverse side of a shower head shell to let an alerting pod screwing mesh therein. A signal circuit device is embedded in the alerting pod for measuring and displaying function. The alerting pod can be either screwing meshed into the recess socket for normal measuring and alerting function or screwing detached off the recess socket for battery recharging operation. Thereby, not only the shower head shell can be adequately powered but also the alerting pod can be separated out of the shower head shell for independently recharging operation so that shower head shell is unnecessary to discarded and replaced even the power supply in the signal circuit device is running out. Thus, it not only saves resource waste but also conserves economical expense incurred by frequent replacement of the shower head shell.

Abstract: The present invention provides a hand held shower head with filter replacing pre-alarm device, which comprises a round recess socket containing a detachable alerting pod is created in the reverse side of a shower head shell. A signal circuit device is embedded in the alerting pod for measuring and displaying function. The alerting pod can be either inserted into the recess socket for normal measuring and alerting function or detached off the recess socket for battery recharging operation. Thereby, not only the shower head shell can be adequately powered but also the alerting pod can be separated out of the shower head shell for independently recharging operation so that the entire shower head shell is unnecessary to discarded and replaced even the DC power supply in the signal circuit device is running out. Thus, it not only saves resource waste but also conserves economical expense incurred by frequent replacement of the shower head.

Abstract: A leakage-proof pipe fitting of quick connection for Reverse Osmosis Membrane (RO) water treatment unit of household comprises a pipe fitting of elbow type, a sealing O-ring, an annular cooperative bushing collar, an accessory latching clip and an adapted cylindrical elastic sleeving collet with an elongated annular delimiting flange, whose longitudinal thickness is lengthened into at least double length for the original longitudinal thickness of the conventional annular delimiting flange to extend the embracing distance from the top surface of the adapted cylindrical elastic sleeving collet to the bottom surface of the cylindrical retainer in the pipe fitting of elbow type so that the curvature for the bent water pipe/tube covered by the embracing distance is reduced. Thereby, the sealing O-ring is free from uneven stress of the bent water pipe/tube. Consequently, it has effect in preventing RO water treatment unit from the leakage of compressed water therein.

Abstract: The present invention provides an air discharge implement for a portable pressurized sprayer comprising a cylindrical main body of discharging duct, an external hood jacket, a conical moving plug and a compression spring. Wherein the main body of hollow discharging duct includes a cylinder bore, a cylindrical discharging mount for containing conical moving plug, and an air passage interposed between hollow discharge chamber and cylinder bore. The external hood jacket is a hollow holder to contain compression spring. The conical moving plug includes a top cone and a planar base with plural footing legs so that a water flow gap is created between the planar base and the air passage at the cylinder bore. If the present invention is properly connected to a water outtake hose of a portable pressurized sprayer, either no air or certain air mingled in the compressed water, it can achieve the air-discharging effect completely.

Abstract: A leakage-free pipe fitting of quick connection for Reverse Osmosis Membrane (RO) water treatment unit of household comprises a pipe fitting, a sealing O-ring, an annular cooperative bushing collar, a cylindrical elastic sleeving collet, an accessory latching clip with a cantilevered lug, and an annular reinforcing bolster with an inner bore. The annular reinforcing bolster is inserted into the cylindrical retainer of the pipe fitting in sandwich between the sealing 0-ring and the bottom surface of the cylindrical elastic sleeving collet. By interposing the annular reinforcing bolster between the cylindrical docking receptacle in the pipe fitting and the scaling O-ring, the water pipe/tube inserted is closely propped and sleeved in symmetrical manner without causing uneven sealing effect incurred by the asymmetrically non-isometric deformation of the sealing O-ring due to bent water pipe/tube. Consequently, it has effect in preventing RO water treatment unit from leakage of compressed water therein.

Abstract: Water leakage and damage to the electric motor of a diaphragm type pressurized pump are avoided by providing the diaphragm with integral hollow cylinders which are inserted through ladder holes of piston head pushing chunks and deformed into sealing engagement with the pushing chunks and their corresponding wobble plates by screws extending through the cylinders and threadedly engaged within corresponding threaded holes of the wobble plates.

Abstract: A compressing diaphragm pump having abnormal pressure preventing features for spray use has a hollow tubular air discharge assembly having a plunger body and compressed spring as well as an air passage pierced at the wall of the water exit port and an air discharge orifice pierced of the central top surface of the air discharge assembly for connecting with the plunger body. When air is mixed within the pressurized water, the resilient force of the compressed spring is bigger than the water pressure of the pressurized water. This allows the air mixed in the pressurized water to get into the air passage and pass the plunger opening of the plunger body via through pore, and is dispelled out of the upper hood via the air discharge orifice of the air discharge assembly.

Abstract: A piston valve for improving the output efficiency of a diaphragm pump includes a central discharge base and a plurality of water inlet ports, wherein each of the discharge base and water inlet ports is provided with a top concave surface, and a plastic gasket is engaged with the concave surface of the water discharge base and a piston slice is engaged with the concave surface of each water inlet port so that a gap is defined between the gasket and its concave surface and a gap is also defined between each piston slice and its corresponding concave surface.

Abstract: A compressing diaphragm pump having automatic air expelling and pressure abnormal-preventing features for spray use has a hollow tubular air discharge assembly having a plunger body and compressed spring as well as an air passage pierced at the wall of the water exit port and an air discharge orifice pierced of the central top surface of the air discharge assembly for connecting with the plunger body. When air is mixed within the pressurized water, the resilient force of the compressed spring is bigger than the water pressure of the pressurized water. This allows the air mixed in the pressurized water to get into the air passage and pass the plunger opening of the plunger body via through pore, and is dispelled out of the upper hood via the air discharge orifice of the air discharge assembly.