Patents Assigned to Graco Minnesota
  • Quick attaching fluid head
    Patent number: 9381533
    Abstract: The fluid section or head (10) for a plural component applicator can be easily assembled or removed from the air section (12) by turning the fluid head ? of a turn. The fluid head (10) has four tabs (14) that protrude and engage with four undercut features (16) within the handle (12). Tabs (14) are inserted through corresponding openings (16) in the front (12a) of air section (12) and rotated such that tabs (14) are retained behind lips (18). A locking tab feature (20) in the hose manifold (24) mates to a recess feature (22) in the handle (12) to prevent the fluid section (10) from rotating.
    Type: Grant
    Filed: May 14, 2009
    Date of Patent: July 5, 2016
    Assignee: Graco Minnesota Inc.
    Inventors: Christopher J. Pellin, Joseph E. Tix, Mark T Weinberger
  • ELECTRONIC PUMP MOTOR CONTROL
    Publication number: 20160186740
    Abstract: A motor control system for a lubricant pump motor comprises a pump system power input, a motor drive, a current sensor, a lubrication controller, and a drive controller. The pump system power input is configured to supply system power. The motor drive is configured to drive the lubricant pump motor using the system power. The current sensor is disposed between the pump system power input and the motor drive to sense an input current of the system power. The lubrication controller configured to provide motor activation signals. The drive controller is disposed to receive the motor activation signals via an isolated digital input, and to control the motor drive as a function of the sensed input current and a user-defined current set-point, in response to the activation signals.
    Type: Application
    Filed: August 7, 2014
    Publication date: June 30, 2016
    Applicant: Graco Minnesota Inc.
    Inventors: Andrew J. KLAPHAKE, Eric J. MJOLHUS, Suresha S. NIJAGUNA, Jesse L. LANIE
  • LUBRICATION SYSTEM AUTOMATIC SHUTOFF
    Publication number: 20160169448
    Abstract: A lubrication system comprises a lubricant reservoir, a inlet into the lubricant reservoir, a diaphragm plate, an actuator pin, a refill inlet, a refill outlet, and a shutoff valve. The diaphragm plate is disposed at a topmost location within the lubricant reservoir. The actuator pin is coupled to the diaphragm plate such that filling the lubricant reservoir drives the actuator pin from a first position to a second position. The refill inlet is configured to receive lubricant, and the refill outlet is fluidly connected to the inlet of the lubricant reservoir. The shutoff valve is connected between the refill inlet and the refill outlet, and actuated by the actuator pin so as to fluidly connect the refill inlet and refill outlet when the actuator pin is in the first position, and fluidly isolate the refill inlet from the refill outlet when the actuator pin is in the second position.
    Type: Application
    Filed: August 7, 2014
    Publication date: June 16, 2016
    Applicant: Graco Minnesota Inc.
    Inventors: John C. Holman, Andrew J. Klaphake
  • SPRAY SYSTEM PRESSURE DIFFERENTIAL MONITORING
    Publication number: 20160153441
    Abstract: A control method for a two-component spray system having first and second pumps for separate fluid components includes registering a target spray pressure, registering a material-specific pressure factor margin, sensing an output pressure of the second pump, and identifying a failure condition in the event that the sensed output pressure remains further than the pressure factor margin from the target spray pressure for at least a threshold time.
    Type: Application
    Filed: July 18, 2014
    Publication date: June 2, 2016
    Applicant: GRACO MINNESOTA INC.
    Inventors: David L. Fehr, John R. Ingebrand, Dennis J. Van Keulen
  • Bypass piston port and methods of manufacturing a bypass piston port for a series progressive divider valve
    Patent number: 9339897
    Abstract: A series progressive divider valve comprises a valve body and pistons. A fluid inlet extends into the valve body. Stations are disposed in the valve body and extend from a first end to a second end; each station comprises piston stations extending through the valve body and a bypass station fluidly isolating the first end from the second end. The piston stations comprise a piston bore and a piston. The bypass stations comprise first and second fluid passages extending from the first and second ends to positions inside the valve body. Outlet bores extend into the valve body, and each comprises first and second sets of outlet bores. Porting forms passageways connecting the stations to each other and with the outlet bores such that when high pressure fluid is applied to the inlet the pistons reciprocates from the first end to the second end in sequence.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: May 17, 2016
    Assignee: Graco Minnesota Inc.
    Inventors: Andrew J. Klaphake, Anthony J. Kuschel
  • High pressure inlet swivel for hose reel
    Patent number: 9322429
    Abstract: A hose reel bearing arrangement supports a rotatable swivel shaft on a stationary hose reel frame. The bearing arrangement comprises a stationary bearing race, a rotating bearing race and a bearing. The stationary bearing race is anchored to the stationary hose reel frame, and has a stationary arcuate land for bearing an axial load, a stationary cylindrical land for bearing a radial load, and a stationary frustoconical intervening portion. The rotating bearing race is anchored to the rotatable swivel shaft, and has a rotating arcuate land for bearing the axial load, a rotating cylindrical land for bearing the radial load, and a rotating frustoconical intervening portion. The bearing is bracketed axially by the stationary arcuate land and the rotating arcuate land, and radially by the stationary cylindrical land and the rotating cylindrical land.
    Type: Grant
    Filed: January 3, 2014
    Date of Patent: April 26, 2016
    Assignee: Graco Minnesota Inc.
    Inventors: Mark L. Bauck, Michael E. Bloom, Daniel L. Medina
  • Elevator control for inductor pump
    Patent number: 9291160
    Abstract: An inductor pump system comprises a fluid activated ram, an inductor pump platen, a fluid activated motor and a fluid control. The inductor pump platen is driven by the fluid activated ram. The fluid activated motor is coupled to the platen. The fluid control comprises an inlet for receiving a source of pressurized fluid, a first circuit and a second circuit. The first and second circuits are configured to receive pressurized fluid from the inlet. The first circuit comprises a switching valve connected to the inlet; an actuator line connected to the ram and the switching valve; and a blow-off line connected to the inductor pump platen and the switching valve. The second circuit is connected to the inlet to receive pressurized fluid and to the motor.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: March 22, 2016
    Assignee: Graco Minnesota Inc.
    Inventor: Paul R. Quam
  • Overmolded diaphragm pump
    Patent number: 9291158
    Abstract: The fluid section of an air operated double diaphragm pump 10 consists of two fluid housings 12, an inlet manifold 14, and an outlet manifold 16. The housings are to be made in two parts. The preferred frame 18 material is glass fiber reinforced with polypropylene that is overmolded into final shape with an encapsulating material 20. The frame 18 is designed so that the encapsulating material 20 can flow from one side to the other allowing for a mechanical lock between the top surface 22 and the bottom so as not to rely on chemical adhesion between the two materials.
    Type: Grant
    Filed: April 21, 2010
    Date of Patent: March 22, 2016
    Assignee: Graco Minnesota Inc.
    Inventors: Bryan C. Cochran, Dawn P. Svenkeson-Koubal, Todd L. Johnson
  • Hot melt level sensor and sensor housing
    Patent number: 9267647
    Abstract: An adhesive melting system comprises a melter, an ultrasonic sensor, and a feed system. The melter contains and melts adhesive. The ultrasonic sensor is positioned to sense a level of adhesive in the melter. The feed system supplies unmelted adhesive to the melter as a function of the sensed level of adhesive in the melter.
    Type: Grant
    Filed: December 17, 2012
    Date of Patent: February 23, 2016
    Assignee: Graco Minnesota Inc.
    Inventors: Joseph E. Tix, Daniel P. Ross, Banjamin R. Godding, Bryce J. Gapinski, Nicholas K. Studt, Mark T. Weinberger
  • Waste heat recovery system for pumping system
    Patent number: 9221669
    Abstract: A pumping system comprises an internal combustion engine, a generator, a pumping unit and a heat recovery system. The generator is driven by the internal combustion engine. The pumping unit is powered by the generator. The heat recovery system thermally couples the internal combustion engine with the pumping unit.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: December 29, 2015
    Assignee: Graco Minnesota Inc.
    Inventors: Joseph E. Tix, Mark T. Weinberger, Richard D. Anderson, Jeffrey N. Velgersdyk, Nicholas K. Studt, Gregory A. Regenscheld, Matthew R. Theisen, Kenneth C. Floer, Mark J. Brudevold, Arthur T. Graf
  • HYDRAULIC PROPORTIONING SYSTEM WITH FLOW DIVIDER
    Publication number: 20150361968
    Abstract: A hydraulic proportioning system has a flow divider providing hydraulic fluid to drive two hydraulic pumps. The flow divider provides set amounts of hydraulic oil to each of two pumps, and the pumps each provide one material of the plural component material downstream to a mixing manifold. The two materials are mixed at the mixing manifold before application. The flow divider drives each pump at a set speed depending on the volume of hydraulic oil provided to each pump. The flow divider thus determines the ratio of the first material to the second material provided to the mixing manifold by the pumps.
    Type: Application
    Filed: June 11, 2015
    Publication date: December 17, 2015
    Applicants: ENDISYS, GRACO MINNESOTA INC.
    Inventors: James C. Schroeder, Dennis R. Dingmann
  • Retaining nut/ring
    Patent number: D747183
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: January 12, 2016
    Assignee: Graco Minnesota Inc.
    Inventors: Glen W. Davidson, Steve J. Wrobel, Chad R. Taszarek, William M. Blenkush, Chris W. Sydow
  • Airless pump
    Patent number: D752648
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: March 29, 2016
    Assignee: Graco Minnesota Inc.
    Inventors: Andrew J. Kopel, Glen W. Davidson
  • Airless pump
    Patent number: D752649
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: March 29, 2016
    Assignee: Graco Minnesota Inc.
    Inventors: Christopher A. Lins, James M. Dalton
  • Airless pump
    Patent number: D753188
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: April 5, 2016
    Assignee: Graco Minnesota Inc.
    Inventors: Andrew J. Kopel, Glen W. Davidson
  • Modular spray roller system
    Patent number: D753923
    Type: Grant
    Filed: November 21, 2014
    Date of Patent: April 19, 2016
    Assignee: Graco Minnesota Inc.
    Inventor: Dale C. Pemberton
  • Plural component spray gun for fast setting materials
    Patent number: RE46002
    Abstract: A plural component spray gun (1) is designed for spraying quick setting materials such as foams, polyurea and the like. Towards this end, the gun (1) is designed so as to be easily serviceable with a minimum of tools. For example, the side seal cartridges (18) and (20) may be installed and removed without tools by removing the retaining ring (9) and then extracting them from the fluid housing (11). Those cartridges (18) and (20) are easily disassembled and cleaned. Similarly, the fluid housing (11) may be removed from the handle/body (1) by unscrewing the lock ring (7) by hand.
    Type: Grant
    Filed: April 13, 2012
    Date of Patent: May 17, 2016
    Assignee: Graco Minnesota Inc.
    Inventors: Douglas P. Zittel, Michael J. Sebion, Richard D. Anderson, Peter L. Linder, Christopher J. Pellin, Mark T. Weinberger, Mark C. Richter
  • Automatic electrostatic gun
    Patent number: D757214
    Type: Grant
    Filed: February 16, 2015
    Date of Patent: May 24, 2016
    Assignee: Graco Minnesota Inc.
    Inventors: Mark C. Richter, Mark E. Ulrich, David W. Koehne
  • Airless paint sprayer
    Patent number: D758536
    Type: Grant
    Filed: March 23, 2015
    Date of Patent: June 7, 2016
    Assignee: Graco Minnesota Inc.
    Inventors: Diane L. Olson, David J. Thompson
  • Airless paint sprayer
    Patent number: D759199
    Type: Grant
    Filed: March 16, 2015
    Date of Patent: June 14, 2016
    Assignee: Graco Minnesota Inc.
    Inventors: Steve J. Wrobel, Charles W. Dawson, Diane L. Olson