US20220380929A1 - Battery-powered electroplating barrel and methods of use - Google Patents
Battery-powered electroplating barrel and methods of use Download PDFInfo
- Publication number
- US20220380929A1 US20220380929A1 US17/744,871 US202217744871A US2022380929A1 US 20220380929 A1 US20220380929 A1 US 20220380929A1 US 202217744871 A US202217744871 A US 202217744871A US 2022380929 A1 US2022380929 A1 US 2022380929A1
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- battery
- electroplating
- electroplating barrel
- motor
- voltage
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- Abandoned
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- 238000009713 electroplating Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000007747 plating Methods 0.000 claims description 13
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 8
- 229910052759 nickel Inorganic materials 0.000 claims description 7
- 239000008151 electrolyte solution Substances 0.000 claims description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 claims description 4
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 claims description 4
- 239000004020 conductor Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910017052 cobalt Inorganic materials 0.000 claims description 2
- 239000010941 cobalt Substances 0.000 claims description 2
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052737 gold Inorganic materials 0.000 claims description 2
- 239000010931 gold Substances 0.000 claims description 2
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 claims description 2
- LQBJWKCYZGMFEV-UHFFFAOYSA-N lead tin Chemical compound [Sn].[Pb] LQBJWKCYZGMFEV-UHFFFAOYSA-N 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- GZCWPZJOEIAXRU-UHFFFAOYSA-N tin zinc Chemical compound [Zn].[Sn] GZCWPZJOEIAXRU-UHFFFAOYSA-N 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 238000005498 polishing Methods 0.000 claims 1
- 239000011135 tin Substances 0.000 claims 1
- 238000013461 design Methods 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000376 reactant Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000779 depleting effect Effects 0.000 description 1
- 230000003467 diminishing effect Effects 0.000 description 1
- 238000009429 electrical wiring Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000011244 liquid electrolyte Substances 0.000 description 1
- 229910052987 metal hydride Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011807 nanoball Substances 0.000 description 1
- -1 nickel metal hydride Chemical class 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/16—Apparatus for electrolytic coating of small objects in bulk
- C25D17/22—Apparatus for electrolytic coating of small objects in bulk having open containers
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D17/00—Constructional parts, or assemblies thereof, of cells for electrolytic coating
- C25D17/16—Apparatus for electrolytic coating of small objects in bulk
- C25D17/18—Apparatus for electrolytic coating of small objects in bulk having closed containers
- C25D17/20—Horizontal barrels
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D21/00—Processes for servicing or operating cells for electrolytic coating
- C25D21/12—Process control or regulation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
- H01M10/488—Cells or batteries combined with indicating means for external visualization of the condition, e.g. by change of colour or of light density
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0063—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with circuits adapted for supplying loads from the battery
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/10—Batteries in stationary systems, e.g. emergency power source in plant
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/0438—Processes of manufacture in general by electrochemical processing
- H01M4/045—Electrochemical coating; Electrochemical impregnation
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J2207/00—Indexing scheme relating to details of circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J2207/20—Charging or discharging characterised by the power electronics converter
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the invention generally relates to electroplating barrels.
- Electroplating barrels are well known for use in the electroplating of small objects, as in U.S. Pat. No. 5,030,330.
- the typical electroplating barrel has a perforated wall and is immersed in electrolyte solution while containing objects to be electroplated. The barrel is then rotated so that the objects tumble within the barrel while submerged in the electrolyte solution and then an electrical potential is placed across the electrolyte solution in a conventional manner to cause electroplating of the objects to take place.
- U.S. Pat. No. 5,851,368 utilizes a battery yet has cables which need to be attached to both anode and cathode bars in an ‘electrified’ tank thus using the tanks Vdc power.
- This method of power transfer can in no way guarantee a specific barrel RPM as the voltage to those tanks was really meant to plate parts, not turn a barrel.
- the voltage then is set to ASF (amps/ft 2 ) for plating.
- ASF amps/ft 2
- This patent technically steals electrical power.
- the RPM is then variable as one can never be guaranteed of a specific voltage being delivered.
- the present invention attempts to solve these problems, as well as others.
- a Battery-Powered Electroplating Barrel apparatus generally comprises an electrical circuit operably coupled to a motor and a battery, wherein the electrical circuit provides a constant voltage to be delivered to the motor for operation of the motor at a constant RPM for an electroplating barrel; and a battery cartridge/holder operably coupled with the battery and an indicator operably coupled with the battery to display the constant voltage of the battery.
- a method of providing power to an electroplating barrel apparatus generally comprises providing a battery operably coupled to an electrical switch; providing a constant voltage to a motor to operate the motor at a constant RPM; delivering the motor's constant RPM to an electroplating barrel; and displaying the constant voltage of the battery.
- FIG. 1 A is a perspective view of the electroplating barrel including a cover tilted back exposing wiring between the motor, the converter, and the battery.
- FIG. 1 B is a perspective view of the electroplating barrel operably coupled with the cover including a switch & voltage display on the cover.
- FIG. 2 A is a side view of the battery with the cover raised exposing battery snapped into a holder.
- FIG. 2 B is a side view of the battery with the cover raised and the battery removed from holder.
- FIG. 3 is a schematic view of the electrical switch.
- FIG. 4 is a graph of the testing RPM vs time where the graph shows voltage drop while operating the barrel at a constant speed over time.
- references to “one embodiment,” “an embodiment,” “example embodiment,” “various embodiments,” etc. may indicate that the embodiment(s) of the invention so described may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic. Further, repeated use of the phrase “in one embodiment,” or “in an exemplary embodiment,” do not necessarily refer to the same embodiment, although they may.
- method refers to manners, means, techniques and procedures for accomplishing a given task including, but not limited to, those manners, means, techniques and procedures either known to, or readily developed from known manners, means, techniques and procedures by practitioners of the mechanical and electrical arts.
- a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer.
- an application running on a server and the server can be a component.
- One or more components can reside within a process and/or thread of execution, and a component can be localized on one computer and/or distributed between two or more computers.
- the Battery-Powered Electroplating Barrel 100 comprises an electroplating barrel 120 that is rotatably driven and it is journalled by means of bearing members that are disposed in the center of the end plates 124 , 126 and are rotatably driven by a motor 150 and gears 152 as seen in U.S. Pat. No. 4,740,286 as well as any number of previously built electroplating barrels.
- the electroplating barrels 120 reside in a bath of electrolyte solution of conventional design so as to permit the interior of the barrel 20 to be substantially filled with such solution, the solution passing into barrel 120 through the perforations 128 in the panels 130 of the barrel 120 .
- An electrical potential is applied to the parts loaded in the barrel by means of the cathode points which are accessed to the barrel by means of insulated conductors that protrude through the bearing members of the end plates 124 and 126 and are connected to electrical power generating means in accordance with known ways for providing electroplating action to articles within the barrel 120 .
- Circular rotation of a barrel used for metal finishing i.e. plating, electroless process, cleaning, phosphating or black oxide is critical for uniformity of finish on each part. Not turning during critical tank positions will not allow liquid to reach all areas of the parts thus causing rejects.
- the rotational means of the cylinder is generated either from a motor attached to the barrel with or by the barrel making mechanical contact by means of an external drive shaft which extends out to a gear which mates with a gear on the tank of which is driven by a gear motor.
- Motors on the barrel require electrical power brought to the motor. It is usually delivered by means of either tank contacts or by an extension cord. Extension cords are technically illegal as they are dangerous and can cause injury.
- the Battery-Powered Electroplating Barrel 100 is operably coupled with a motor 150 to provide the torque and rotating power to the electroplating barrel 120 .
- a lithium ion battery 140 is operably coupled to a circuit 160 and the motor 150 , where the electrical circuit 160 provides a constant voltage to the motor 150 in order to provide a constant rotational motion by the motor 150 for the electroplating barrel 120 .
- a constant rotational motion or RPM is required for proper electroplating barrel operation.
- the battery may be disposed in a holder 170 and when the voltage of the battery decreases, an indicator 180 is provided on the cover, as shown in FIG. 1 B , to indicate a threshold voltage in which the battery needs to be replaced. In one embodiment, the threshold is 16 V.
- the Battery-Powered Electroplating Barrel 100 is operably coupled to the electrical circuit 160 that pulls amps from the battery and providing a constant voltage to the motor to provide a constant RPM to the electroplating barrel.
- a constant RPM guarantees plating uniformity.
- the RPM may range from about 2 to about 10 RPM; alternatively between about 1 to about 100 RPM.
- the constant RPM may be selected based upon the type of plating process being performed.
- the plating process include, but are not limited to: Copper plating, nickel plating, electroless nickel phosphorous, palladium plating, palladium-nickel, silver plating, tin, tin-lead, tin-zinc, zinc electroplating, zinc-nickel, soft and cobalt hardened gold including the SPC plating array.
- the battery cartridge/holder 170 allows the battery 140 to be easily replaced when the indicator 180 tells the operator it's time to replace the battery.
- the electrical circuit 160 protects the battery 180 from surges as well as delivers constant voltage to the motor of which delivers a constant RPM.
- the battery holder holds the battery the same way as a charger and is part of the barrels electrical circuit.
- the Battery-Powered Electroplating Barrel 100 operates in a metal finishing operation without the use of electrical cords or the need to have a contact block mounted in the tank along with fingers on the barrel. There are exposed voltage restrictions (usually 42v) which protect humans from harm.
- the electrical circuit 160 is disposed between the battery 140 and the motor 150 allow the barrel to run for a predetermined period of time of which is based on models which factor in mass and weight of parts, desired RPM, sizing of motor and battery.
- the battery 140 is monitored by the display indicator 180 and a switch 190 turns on the battery 140 to power the motor 150 .
- the predetermined period of time may between 20 minutes and 6 hours; alternatively between 50 minutes and 3 hour; alternatively between 100 minutes and 250 minutes. Multiple batteries can be wired in parallel to the electrical circuit 140 , which offers increased battery life should there be a need.
- the voltage from the battery first passes through the electrical circuit 160 where it is adjusted to meet a preset voltage of which is determined by torque ratings, loads to be revolved and the required RPM and amount of expected time the barrel needs to operate.
- the voltage display 180 is constantly monitoring and displaying the battery's condition.
- the electrical circuit is a DC-DC circuit that allows the battery to deliver a constant preset voltage to the motor.
- An electric circuit is a path in which electrons from a voltage or current source flow.
- Electronic circuits usually use low voltage direct current sources.
- the load of an electronic circuit may be as simple as a few resistors, capacitors, and a lamp, or an electronic circuit can be complicated, connecting thousands of resistors, capacitors, and transistors.
- the electrical circuit may be an integrated circuit such as the microprocessor operably coupled to a computer.
- a direct current circuit is an electrical circuit that consists of any combination of constant voltage sources, constant current sources, and resistors.
- the circuit voltages and currents are independent of time.
- a particular circuit voltage or current does not depend on the past value of any circuit voltage or current. This implies that the system of equations that represent a DC circuit do not involve integrals or derivatives with respect to time.
- An electric battery is a device consisting of one or more electrochemical cells with external connections provided to power the electroplating barrel.
- a battery When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode.
- the terminal marked negative is the source of electrons that when connected to an external circuit will flow and deliver energy to an external device.
- electrolytes When a battery is connected to an external circuit, electrolytes are able to move as ions within, allowing the chemical reactions to be completed at the separate terminals and so deliver energy to the external circuit. It is the movement of those ions within the battery which allows current to flow out of the battery to perform work.
- the term “battery” may refer to a device composed of multiple cells, or to include devices composed of a single cell.
- a primary or secondary battery may be used.
- Primary batteries are designed to be used until exhausted of energy then discarded. Their chemical reactions are generally not reversible, so they cannot be recharged. When the supply of reactants in the battery is exhausted, the battery stops producing current and is useless.
- Secondary batteries can be recharged; that is, they can have their chemical reactions reversed by applying electric current to the cell. This regenerates the original chemical reactants, so they can be used, recharged, and used again multiple times.
- a secondary batteries include a lead-acid battery, which contains liquid electrolyte in an unsealed container, requiring that the battery be kept upright and the area be well ventilated to ensure safe dispersal of the hydrogen gas it produces during overcharging. Its high surge current levels make its capacity over approximately 10 Ah.
- Another form of a secondary battery is a sealed valve regulated lead-acid battery (VRLA battery).
- the VRLA battery uses an immobilized sulfuric acid electrolyte, reducing the chance of leakage and extending shelf life.
- VRLA batteries immobilize the electrolyte by a Gel batteries (or “gel cell”) use a semi-solid electrolyte or an Absorbed Glass Mat (AGM) batteries absorb the electrolyte in a special fiberglass matting.
- AGM Absorbed Glass Mat
- Cells of this type include nickel-cadmium (NiCd), nickel-zinc (NiZn), nickel metal hydride (NiMH), and lithium-ion (Li-ion) cells.
- USBCELL USBCELL
- nanoball batteries that allow for a discharge rate about 100 ⁇ greater than current batteries
- smart battery packs with state-of-charge monitors and battery protection circuits that prevent damage on over-discharge.
- the motor is a DC motor.
- An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between an electric motor's magnetic field and winding currents to generate force. Electric motors can be powered by direct current (DC) sources, such as from batteries, motor vehicles or rectifiers, or by alternating current (AC) sources, such as from the power grid, inverters or generators. Electric motors operate on three different physical principles: magnetic, electrostatic and piezoelectric. By far the most common is magnetic. All self-commutated DC motors run on DC electric power. Most DC motors are small permanent magnet (PM) types. They contain a brushed internal mechanical commutation to reverse motor windings' current in synchronism with rotation.
- PM permanent magnet
- magnetic motors magnetic fields are formed in both the rotor and the stator. The product between these two fields gives rise to a force, and thus a torque on the motor shaft. One, or both, of these fields must be made to change with the rotation of the motor. This is done by switching the poles on and off at the right time, or varying the strength of the pole.
- the Battery-Powered Electroplating Barrel 100 includes a unique circuitry that allows for a depleting Lithium Ion battery's power to be constantly matched with an output voltage to the motor.
- the mathematical formulas may include constraints provided by customer and engineering design factors to achieve customer constraints.
- the constraints provided by customer may include, but are not limited to: Cylinder diameter, Cylinder revolutions per minute, Weight of parts load, Volume of parts load, Interval between battery charges.
- the engineering design factors to achieve customer constraints may include, but are not limited to: Barrel drive gear size, Barrel cylinder gear size, DC volts supplied to motor, Gearmotor nameplate volts, Gearmotor nameplate RPM, Gearmotor nameplate full load amps, Gearmotor nameplate full load torque, Battery pack voltage and ampere hour rating.
- the mathematical formulas consider the available DC gearmotors with a minimum required output torque at various volts for the DC volts supplied to the motor.
- the mathematical formulas consider the available DC gearmotors with output speed for the cylinder revolutions per minute given various barrel drive gear sizes and various barrel cylinder gear sizes.
- the mathematical formulas consider the available DC gearmotors with ampere draw that satisfy the Interval between battery charges given available Battery pack voltage and ampere hour rating.
- the mathematical formulas select the DC gearmotor that satisfies torque, speed and power draw.
- the mathematical formulas select the battery pack(s) to match the Interval between battery charges, the DC volts supplied to the motor, and the Battery pack voltage and ampere hour rating.
- the mathematical formulas specify gears for the Barrel drive gear size and Barrel cylinder gear size, the gearmotor and battery pack to satisfy Cylinder diameter, Cylinder revolutions per minute, the Weight of parts load, the Volume of parts load, the Interval between battery charges when DC volts is supplied to the gearmotor.
- FIG. 4 data was obtained by filling a barrel with parts and testing RPM vs time.
- the graph in FIG. 4 shows voltage drop while operating the barrel at a constant speed over time.
- the electrical circuit is unique from any other known electrical wiring for barrels as it pulls amps from a battery to drive the motor which diminish the battery's power yet the circuitry provides a constant voltage to the motor which guarantees a constant barrel RPM. Constant RPM is critical to guaranty uniformity of plating thickness across the load.
- the only way to have the barrel rotate at a constant speed is to utilize the as described electrical circuit. Installing a battery in a barrel without the electrical circuit cannot guarantee constant RPM. The success of guaranteeing a correct and constant RPM is by factoring weight of parts and filled to a percent of the capacity, torque rating on motor based on the gear train while matching capacities of motor and battery as a function of time. The battery's diminishing power over time is a key part of the calculation.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Electrochemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Automation & Control Theory (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Electroplating Methods And Accessories (AREA)
Abstract
Provided herein are systems, methods and apparatuses for a battery powered electroplating barrel and methods of use.
Description
- The present application is a continuation of co-pending, commonly assigned U.S. patent application Ser. No. 16/260,915, filed Jan. 29, 2019, now U.S. Pat. No. 11,332,844, and claims priority to U.S. provisional application Ser. No. 62/627,484, filed Feb. 7, 2018, herein incorporated by reference in its entirety.
- The invention generally relates to electroplating barrels.
- Electroplating barrels are well known for use in the electroplating of small objects, as in U.S. Pat. No. 5,030,330. The typical electroplating barrel has a perforated wall and is immersed in electrolyte solution while containing objects to be electroplated. The barrel is then rotated so that the objects tumble within the barrel while submerged in the electrolyte solution and then an electrical potential is placed across the electrolyte solution in a conventional manner to cause electroplating of the objects to take place.
- U.S. Pat. No. 5,851,368 utilizes a battery yet has cables which need to be attached to both anode and cathode bars in an ‘electrified’ tank thus using the tanks Vdc power. This method of power transfer can in no way guarantee a specific barrel RPM as the voltage to those tanks was really meant to plate parts, not turn a barrel. The voltage then is set to ASF (amps/ft2) for plating. This patent technically steals electrical power. The RPM is then variable as one can never be guaranteed of a specific voltage being delivered.
- The present invention attempts to solve these problems, as well as others.
- Provided herein are systems, methods and apparatuses for a battery powered electroplating barrel and methods of use. A Battery-Powered Electroplating Barrel apparatus is disclosed and generally comprises an electrical circuit operably coupled to a motor and a battery, wherein the electrical circuit provides a constant voltage to be delivered to the motor for operation of the motor at a constant RPM for an electroplating barrel; and a battery cartridge/holder operably coupled with the battery and an indicator operably coupled with the battery to display the constant voltage of the battery.
- A method of providing power to an electroplating barrel apparatus is disclosed and generally comprises providing a battery operably coupled to an electrical switch; providing a constant voltage to a motor to operate the motor at a constant RPM; delivering the motor's constant RPM to an electroplating barrel; and displaying the constant voltage of the battery.
- The methods, systems, and apparatuses are set forth in part in the description which follows, and in part will be obvious from the description, or can be learned by practice of the methods, apparatuses, and systems. The advantages of the methods, apparatuses, and systems will be realized and attained by means of the elements and combinations particularly pointed out in the appended claims. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the methods, apparatuses, and systems, as claimed.
- In the accompanying figures, like elements are identified by like reference numerals among the several preferred embodiments of the present invention.
-
FIG. 1A is a perspective view of the electroplating barrel including a cover tilted back exposing wiring between the motor, the converter, and the battery. -
FIG. 1B is a perspective view of the electroplating barrel operably coupled with the cover including a switch & voltage display on the cover. -
FIG. 2A is a side view of the battery with the cover raised exposing battery snapped into a holder. -
FIG. 2B is a side view of the battery with the cover raised and the battery removed from holder. -
FIG. 3 is a schematic view of the electrical switch. -
FIG. 4 is a graph of the testing RPM vs time where the graph shows voltage drop while operating the barrel at a constant speed over time. - The foregoing and other features and advantages of the invention are apparent from the following detailed description of exemplary embodiments, read in conjunction with the accompanying drawings. The detailed description and drawings are merely illustrative of the invention rather than limiting, the scope of the invention being defined by the appended claims and equivalents thereof.
- Embodiments of the invention will now be described with reference to the Figures, wherein like numerals reflect like elements throughout. The terminology used in the description presented herein is not intended to be interpreted in any limited or restrictive way, simply because it is being utilized in conjunction with detailed description of certain specific embodiments of the invention. Furthermore, embodiments of the invention may include several novel features, no single one of which is solely responsible for its desirable attributes or which is essential to practicing the invention described herein.
- The use of the terms “a” and “an” and “the” and similar referents in the context of describing the invention are to be construed to cover both the singular and the plural, unless otherwise indicated herein or clearly contradicted by context. It will be further understood that the terms “comprises,” “comprising,” “includes,” and/or “including,” when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.
- Recitation of ranges of values herein are merely intended to serve as a shorthand method of referring individually to each separate value falling within the range, unless otherwise indicated herein, and each separate value is incorporated into the specification as if it were individually recited herein. The word “about,” when accompanying a numerical value, is to be construed as indicating a deviation of up to and inclusive of 10% from the stated numerical value. The use of any and all examples, or exemplary language (“e.g.” or “such as”) provided herein, is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention unless otherwise claimed. No language in the specification should be construed as indicating any nonclaimed element as essential to the practice of the invention.
- References to “one embodiment,” “an embodiment,” “example embodiment,” “various embodiments,” etc., may indicate that the embodiment(s) of the invention so described may include a particular feature, structure, or characteristic, but not every embodiment necessarily includes the particular feature, structure, or characteristic. Further, repeated use of the phrase “in one embodiment,” or “in an exemplary embodiment,” do not necessarily refer to the same embodiment, although they may.
- As used herein the term “method” refers to manners, means, techniques and procedures for accomplishing a given task including, but not limited to, those manners, means, techniques and procedures either known to, or readily developed from known manners, means, techniques and procedures by practitioners of the mechanical and electrical arts.
- As used in this application, the terms “component” and “system” are intended to refer to a computer-related entity, either hardware, a combination of hardware and software, software, or software in execution. For example, a component can be, but is not limited to being, a process running on a processor, a processor, an object, an executable, a thread of execution, a program, and/or a computer. By way of illustration, both an application running on a server and the server can be a component. One or more components can reside within a process and/or thread of execution, and a component can be localized on one computer and/or distributed between two or more computers.
- Generally speaking, the Battery-Powered
Electroplating Barrel 100 comprises anelectroplating barrel 120 that is rotatably driven and it is journalled by means of bearing members that are disposed in the center of theend plates motor 150 andgears 152 as seen in U.S. Pat. No. 4,740,286 as well as any number of previously built electroplating barrels. Generally, theelectroplating barrels 120 reside in a bath of electrolyte solution of conventional design so as to permit the interior of the barrel 20 to be substantially filled with such solution, the solution passing intobarrel 120 through theperforations 128 in thepanels 130 of thebarrel 120. An electrical potential is applied to the parts loaded in the barrel by means of the cathode points which are accessed to the barrel by means of insulated conductors that protrude through the bearing members of theend plates barrel 120. - Circular rotation of a barrel used for metal finishing i.e. plating, electroless process, cleaning, phosphating or black oxide is critical for uniformity of finish on each part. Not turning during critical tank positions will not allow liquid to reach all areas of the parts thus causing rejects. The rotational means of the cylinder is generated either from a motor attached to the barrel with or by the barrel making mechanical contact by means of an external drive shaft which extends out to a gear which mates with a gear on the tank of which is driven by a gear motor. Motors on the barrel require electrical power brought to the motor. It is usually delivered by means of either tank contacts or by an extension cord. Extension cords are technically illegal as they are dangerous and can cause injury.
- The Battery-Powered
Electroplating Barrel 100 is operably coupled with amotor 150 to provide the torque and rotating power to theelectroplating barrel 120. In one embodiment, alithium ion battery 140 is operably coupled to acircuit 160 and themotor 150, where theelectrical circuit 160 provides a constant voltage to themotor 150 in order to provide a constant rotational motion by themotor 150 for theelectroplating barrel 120. A constant rotational motion or RPM is required for proper electroplating barrel operation. The battery may be disposed in aholder 170 and when the voltage of the battery decreases, anindicator 180 is provided on the cover, as shown inFIG. 1B , to indicate a threshold voltage in which the battery needs to be replaced. In one embodiment, the threshold is 16 V. - The Battery-Powered
Electroplating Barrel 100 is operably coupled to theelectrical circuit 160 that pulls amps from the battery and providing a constant voltage to the motor to provide a constant RPM to the electroplating barrel. A constant RPM guarantees plating uniformity. The RPM may range from about 2 to about 10 RPM; alternatively between about 1 to about 100 RPM. The constant RPM may be selected based upon the type of plating process being performed. The plating process include, but are not limited to: Copper plating, nickel plating, electroless nickel phosphorous, palladium plating, palladium-nickel, silver plating, tin, tin-lead, tin-zinc, zinc electroplating, zinc-nickel, soft and cobalt hardened gold including the SPC plating array. - The battery cartridge/
holder 170 allows thebattery 140 to be easily replaced when theindicator 180 tells the operator it's time to replace the battery. Theelectrical circuit 160 protects thebattery 180 from surges as well as delivers constant voltage to the motor of which delivers a constant RPM. The battery holder holds the battery the same way as a charger and is part of the barrels electrical circuit. - The Battery-Powered
Electroplating Barrel 100 operates in a metal finishing operation without the use of electrical cords or the need to have a contact block mounted in the tank along with fingers on the barrel. There are exposed voltage restrictions (usually 42v) which protect humans from harm. - As shown in
FIG. 3 , theelectrical circuit 160 is disposed between thebattery 140 and themotor 150 allow the barrel to run for a predetermined period of time of which is based on models which factor in mass and weight of parts, desired RPM, sizing of motor and battery. Thebattery 140 is monitored by thedisplay indicator 180 and aswitch 190 turns on thebattery 140 to power themotor 150. The predetermined period of time may between 20 minutes and 6 hours; alternatively between 50 minutes and 3 hour; alternatively between 100 minutes and 250 minutes. Multiple batteries can be wired in parallel to theelectrical circuit 140, which offers increased battery life should there be a need. - The voltage from the battery first passes through the
electrical circuit 160 where it is adjusted to meet a preset voltage of which is determined by torque ratings, loads to be revolved and the required RPM and amount of expected time the barrel needs to operate. Thevoltage display 180 is constantly monitoring and displaying the battery's condition. - In one embodiment, the electrical circuit is a DC-DC circuit that allows the battery to deliver a constant preset voltage to the motor. An electric circuit is a path in which electrons from a voltage or current source flow. Electronic circuits usually use low voltage direct current sources. The load of an electronic circuit may be as simple as a few resistors, capacitors, and a lamp, or an electronic circuit can be complicated, connecting thousands of resistors, capacitors, and transistors. The electrical circuit may be an integrated circuit such as the microprocessor operably coupled to a computer.
- A direct current circuit is an electrical circuit that consists of any combination of constant voltage sources, constant current sources, and resistors. In this case, the circuit voltages and currents are independent of time. A particular circuit voltage or current does not depend on the past value of any circuit voltage or current. This implies that the system of equations that represent a DC circuit do not involve integrals or derivatives with respect to time.
- An electric battery is a device consisting of one or more electrochemical cells with external connections provided to power the electroplating barrel. When a battery is supplying electric power, its positive terminal is the cathode and its negative terminal is the anode. The terminal marked negative is the source of electrons that when connected to an external circuit will flow and deliver energy to an external device. When a battery is connected to an external circuit, electrolytes are able to move as ions within, allowing the chemical reactions to be completed at the separate terminals and so deliver energy to the external circuit. It is the movement of those ions within the battery which allows current to flow out of the battery to perform work. The term “battery” may refer to a device composed of multiple cells, or to include devices composed of a single cell.
- A primary or secondary battery may be used. Primary batteries are designed to be used until exhausted of energy then discarded. Their chemical reactions are generally not reversible, so they cannot be recharged. When the supply of reactants in the battery is exhausted, the battery stops producing current and is useless. Secondary batteries can be recharged; that is, they can have their chemical reactions reversed by applying electric current to the cell. This regenerates the original chemical reactants, so they can be used, recharged, and used again multiple times.
- One form of a secondary batteries include a lead-acid battery, which contains liquid electrolyte in an unsealed container, requiring that the battery be kept upright and the area be well ventilated to ensure safe dispersal of the hydrogen gas it produces during overcharging. Its high surge current levels make its capacity over approximately 10 Ah. Another form of a secondary battery is a sealed valve regulated lead-acid battery (VRLA battery). The VRLA battery uses an immobilized sulfuric acid electrolyte, reducing the chance of leakage and extending shelf life. VRLA batteries immobilize the electrolyte by a Gel batteries (or “gel cell”) use a semi-solid electrolyte or an Absorbed Glass Mat (AGM) batteries absorb the electrolyte in a special fiberglass matting. Other portable rechargeable batteries include several sealed “dry cell” types. Cells of this type (in order of increasing power density and cost) include nickel-cadmium (NiCd), nickel-zinc (NiZn), nickel metal hydride (NiMH), and lithium-ion (Li-ion) cells.
- Other batteries include USBCELL, nanoball batteries that allow for a discharge rate about 100× greater than current batteries, and smart battery packs with state-of-charge monitors and battery protection circuits that prevent damage on over-discharge.
- In one embodiment, the motor is a DC motor. An electric motor is an electrical machine that converts electrical energy into mechanical energy. Most electric motors operate through the interaction between an electric motor's magnetic field and winding currents to generate force. Electric motors can be powered by direct current (DC) sources, such as from batteries, motor vehicles or rectifiers, or by alternating current (AC) sources, such as from the power grid, inverters or generators. Electric motors operate on three different physical principles: magnetic, electrostatic and piezoelectric. By far the most common is magnetic. All self-commutated DC motors run on DC electric power. Most DC motors are small permanent magnet (PM) types. They contain a brushed internal mechanical commutation to reverse motor windings' current in synchronism with rotation. In magnetic motors, magnetic fields are formed in both the rotor and the stator. The product between these two fields gives rise to a force, and thus a torque on the motor shaft. One, or both, of these fields must be made to change with the rotation of the motor. This is done by switching the poles on and off at the right time, or varying the strength of the pole.
- Mathematical formulas were developed to factor in all critical areas needed to guarantee operation. It is then by design that a constant speed is maintained over a specified period of time. The Battery-Powered
Electroplating Barrel 100 includes a unique circuitry that allows for a depleting Lithium Ion battery's power to be constantly matched with an output voltage to the motor. - The mathematical formulas may include constraints provided by customer and engineering design factors to achieve customer constraints. The constraints provided by customer may include, but are not limited to: Cylinder diameter, Cylinder revolutions per minute, Weight of parts load, Volume of parts load, Interval between battery charges. The engineering design factors to achieve customer constraints may include, but are not limited to: Barrel drive gear size, Barrel cylinder gear size, DC volts supplied to motor, Gearmotor nameplate volts, Gearmotor nameplate RPM, Gearmotor nameplate full load amps, Gearmotor nameplate full load torque, Battery pack voltage and ampere hour rating.
- Given the cylinder diameter, the weight of parts of the load, and the volume of the parts of the load and various combinations of barrel drive gear size and barrel cylinder gear size are used to calculate required gearmotor output torque(s). The mathematical formulas consider the available DC gearmotors with a minimum required output torque at various volts for the DC volts supplied to the motor. The mathematical formulas consider the available DC gearmotors with output speed for the cylinder revolutions per minute given various barrel drive gear sizes and various barrel cylinder gear sizes. The mathematical formulas consider the available DC gearmotors with ampere draw that satisfy the Interval between battery charges given available Battery pack voltage and ampere hour rating. The mathematical formulas select the DC gearmotor that satisfies torque, speed and power draw. The mathematical formulas select the battery pack(s) to match the Interval between battery charges, the DC volts supplied to the motor, and the Battery pack voltage and ampere hour rating.
- The mathematical formulas specify gears for the Barrel drive gear size and Barrel cylinder gear size, the gearmotor and battery pack to satisfy Cylinder diameter, Cylinder revolutions per minute, the Weight of parts load, the Volume of parts load, the Interval between battery charges when DC volts is supplied to the gearmotor.
- As shown in
FIG. 4 , data was obtained by filling a barrel with parts and testing RPM vs time. The graph inFIG. 4 shows voltage drop while operating the barrel at a constant speed over time. - The electrical circuit is unique from any other known electrical wiring for barrels as it pulls amps from a battery to drive the motor which diminish the battery's power yet the circuitry provides a constant voltage to the motor which guarantees a constant barrel RPM. Constant RPM is critical to guaranty uniformity of plating thickness across the load.
- The only way to have the barrel rotate at a constant speed is to utilize the as described electrical circuit. Installing a battery in a barrel without the electrical circuit cannot guarantee constant RPM. The success of guaranteeing a correct and constant RPM is by factoring weight of parts and filled to a percent of the capacity, torque rating on motor based on the gear train while matching capacities of motor and battery as a function of time. The battery's diminishing power over time is a key part of the calculation.
- All publications and patent applications mentioned in this specification are herein incorporated by reference to the same extent as if each individual publication or patent application was specifically and individually indicated to be incorporated by reference.
- While the invention has been described in connection with various embodiments, it will be understood that the invention is capable of further modifications. This application is intended to cover any variations, uses or adaptations of the invention following, in general, the principles of the invention, and including such departures from the present disclosure as, within the known and customary practice within the art to which the invention pertains.
Claims (9)
1. An electroplating barrel apparatus for coating a plating thickness to work pieces in an electroplating barrel, comprising:
a. A motor operably coupled to the electroplating barrel;
b. A battery electrically coupled to the motor;
c. A DC-DC voltage regulator that receives DC current at a first voltage from the battery and adjusts the first voltage from the battery to a second voltage which is communicated to the motor, thereby operating the motor at a constant speed and rotating the electroplating barrel at a uniform rotational rate for an entire time of an electroplating process such that the work pieces in the electroplating barrel have a uniform plating thickness; and
d. A display electrically coupled to the battery configured to display the first voltage from the battery during the entire time of the electroplating process.
2. The electroplating barrel apparatus of claim 1 , further comprising an indicator alarm configured to actuate at a pre-set threshold of the first voltage output from the battery.
3. The electroplating barrel apparatus of claim 1 , wherein the motor is controlled to rotate the electroplating barrel at a uniform rotational rate selected from the range of about 2 to about 10 rotations per minute.
4. The electroplating barrel apparatus of claim 3 , wherein the uniform rotational rate of the electroplating barrel is regulated by the second voltage output from the DC-DC voltage regulator to the motor.
5. The electroplating barrel apparatus of claim 1 , further comprising a microprocessor operably coupled to and configured to control the DC-DC voltage regulator.
6. The electroplating barrel apparatus of claim 1 , further comprising an electrolyte solution, an anode and a cathode, configured to plate one or more of copper, nickel, nickel phosphorous, palladium, palladium-nickel, silver, tin, tin-lead, tin-zinc, zinc, zinc-nickel, cobalt hardened gold, and a self-polishing coating (SPC) platting array on the work pieces during the electroplating process.
7. The electroplating barrel apparatus of claim 6 , wherein the battery is operably coupled to the cathode and configured to apply an electrical potential between the cathode and the anode within the electrolyte solution.
8. The electroplating barrel apparatus of claim 7 , wherein the cathode further comprises a plurality of cathode points electrically coupled to a plurality of insulated conductors.
9. The electroplating barrel apparatus of claim 8 , further comprising first and second end plates and a plurality of bearing members, wherein the plurality of insulated conductors project through the plurality of bearing members.
Priority Applications (1)
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US17/744,871 US20220380929A1 (en) | 2018-02-07 | 2022-05-16 | Battery-powered electroplating barrel and methods of use |
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US201862627484P | 2018-02-07 | 2018-02-07 | |
US17/744,871 US20220380929A1 (en) | 2018-02-07 | 2022-05-16 | Battery-powered electroplating barrel and methods of use |
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US20220380929A1 true US20220380929A1 (en) | 2022-12-01 |
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US16/260,915 Active 2039-06-22 US11332844B2 (en) | 2018-02-07 | 2019-01-29 | Battery-powered electroplating barrel and methods of use |
US17/744,871 Abandoned US20220380929A1 (en) | 2018-02-07 | 2022-05-16 | Battery-powered electroplating barrel and methods of use |
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US16/260,915 Active 2039-06-22 US11332844B2 (en) | 2018-02-07 | 2019-01-29 | Battery-powered electroplating barrel and methods of use |
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US11332844B2 (en) * | 2018-02-07 | 2022-05-17 | Hardwood Line Manufacturing Co. | Battery-powered electroplating barrel and methods of use |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030330A (en) * | 1990-06-22 | 1991-07-09 | Hardwood Line Manufacturing Co. | Electroplating barrel |
US5664048A (en) * | 1990-11-14 | 1997-09-02 | Abbott Laboratories | Speed control circuit for a DC motor |
US5851368A (en) * | 1997-03-14 | 1998-12-22 | Rumph; Timothy P. | Small parts plating apparatus |
US20040046673A1 (en) * | 2002-09-05 | 2004-03-11 | S-B Power Tool Corporation | Battery charge indicating circuit |
CN205653531U (en) * | 2016-04-21 | 2016-10-19 | 确信乐思化学(上海)有限公司 | Rechargeable portable barrel -plating machine |
US20190242027A1 (en) * | 2018-02-07 | 2019-08-08 | Hardwood Line Manufacturing Co. | Battery-powered electroplating barrel and methods of use |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2325401A (en) | 1940-10-17 | 1943-07-27 | Carnegie Illinois Steel Corp | Electroplating apparatus |
US2766201A (en) | 1953-06-12 | 1956-10-09 | Underwood Corp | Apparatus for barrel-plating small articles |
US4319971A (en) | 1981-03-26 | 1982-03-16 | Metal Extraction Processes Corporation | Method and means for recovering silver by electrolysis |
DE19820060A1 (en) * | 1998-05-06 | 1999-11-11 | Hans Henig | Method and apparatus for mingling charges of pourable mass-produced articles in rotating immersion drums |
-
2019
- 2019-01-29 US US16/260,915 patent/US11332844B2/en active Active
-
2022
- 2022-05-16 US US17/744,871 patent/US20220380929A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5030330A (en) * | 1990-06-22 | 1991-07-09 | Hardwood Line Manufacturing Co. | Electroplating barrel |
US5664048A (en) * | 1990-11-14 | 1997-09-02 | Abbott Laboratories | Speed control circuit for a DC motor |
US5851368A (en) * | 1997-03-14 | 1998-12-22 | Rumph; Timothy P. | Small parts plating apparatus |
US20040046673A1 (en) * | 2002-09-05 | 2004-03-11 | S-B Power Tool Corporation | Battery charge indicating circuit |
CN205653531U (en) * | 2016-04-21 | 2016-10-19 | 确信乐思化学(上海)有限公司 | Rechargeable portable barrel -plating machine |
US20190242027A1 (en) * | 2018-02-07 | 2019-08-08 | Hardwood Line Manufacturing Co. | Battery-powered electroplating barrel and methods of use |
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US11332844B2 (en) | 2022-05-17 |
US20190242027A1 (en) | 2019-08-08 |
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