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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Graco Inc. Patents
Assignee:
Graco Inc.
Address:
Minneapolis, MN
No. of patents:
180
Patents:


1 2 3 4


Patent Number Title Of Patent Date Issued
RE29495 Apparatus and method for a metering system December 13, 1977
An apparatus and method for a fluid metering system that employs a high resolution position sensor and electronics to very accurately control the amount of fluid dispensed. This sensor may be an optical sensor which translates the movement of a positive displacement pump into electrical
D395439 Waste oil receptacle June 23, 1998
D382500 Dispensing meter August 19, 1997
D382277 Double diaphragm pump August 12, 1997
D380218 Double diaphragm pump June 24, 1997
D350387 Electrostatic spray gun September 6, 1994
D346729 Foam gun May 10, 1994
D345138 Air motor March 15, 1994
D342654 Flow gun December 28, 1993
D313064 Electrostatic spray gun December 18, 1990
D311408 Adhesive supply unit October 16, 1990
D308920 Pressure-fed trim paintbrush head July 3, 1990
D308213 Electric robot May 29, 1990
D307830 Pressure-fed paintbrush head May 15, 1990
D302557 Pump August 1, 1989
D251602 Paint sprayer April 17, 1979
D243016 Spray unit January 11, 1977
6811351 Self aligning mechanical pointer November 2, 2004
A self-aligning mechanical pointer (10), includes a frame (12) attached to the front of a vehicle (14). A guide wheel (16) rides on a road surface and is rotatably carried by a wheel holder (18). The wheel holder (18) is connected to a swing arm (20), which pivots on frame (12) at point
6554204 Integrated gun flush controller April 29, 2003
A gun flush box is controlled by a plural component proportioning unit. When a color change is desired, the operator places the spray gun in the flush box. When a new color is selected, the control system automatically triggers the gun and flushes the gun with solvent with the flush mate
6543647 Method and device for dosing and mixing different components April 8, 2003
In a method for metering and mixing different components, more particularly resin and hardener, and for delivery through a spray device (6), with a first component standing under a preliminary pressure, a second component standing under a preliminary pressure and a solvent standing under
6533488 Airless sprayer drive mechanism March 18, 2003
An airless spray pump has a drive train is comprised of a motor having an output gear thereon which drives a combination gear assembly comprised of two gears mounted on a shaft which in turn drives a crank assembly which is comprised of a one-piece eccentric end gear molded together and
6510966 Rotary vibrating applicator for viscous materials January 28, 2003
An air driven vibrator is attached to a robotic applicator for sealants and adhesives. When the plane of vibration is normal to the axis of the dispenser, the vibration will impart a rotary motion to the applicator. When the plane of vibration is parallel to the axis of the dispenser and
6138872 Apparatus for dispensing of two component adhesive from static mixer October 31, 2000
An apparatus for dispensing of two component adhesive utilizes a conventional static mixer which is supplied with an insert providing a reduced outlet diameter source to allow streaming of the adhesive from the mixer.
6076705 Heated follower plate June 20, 2000
A heated follower plate for use with drum end loaders has a number of concentric downwardly facing ribs which have heating elements located in the lower ends thereof. A plurality of radial passages are provided which alternate between those which extend fully from the circumference of th
6047906 Non-drip dispensing nozzle April 11, 2000
The nozzle is designed for fitting on the end of a metered dispense valve which is used in fluid delivery systems such as lubricant dispensers for use in vehicle servicing and the like. The device in this application accommodates thermal expansion between the meter and nozzle by providin
6019294 Interchangeable feed airspray/HVLP spray gun February 1, 2000
A spray gun is easily convertible between a number of configurations. A removable fluid insert may be placed in interchangeable (airspray and HVLP) spray heads with the fluid insert being either a pressure fed device which depends downwardly from the front end of the gun into a pressuriz
6019293 Domed air cap February 1, 2000
The invention is concentrated at the front end of such an air spray or HVLP gun and in particular details the relationship between the exterior of the fluid nozzle and the inside of the air cap. In particular, the fluid nozzle has a generally frustoconical outer surface which forms an in
5971714 Electronic CAM compensation of pressure change of servo controlled pumps October 26, 1999
The construction and operation of the control of this invention is designed to minimize pressure changes at pump changeover by sampling pump pressure characteristics for each pump cycle, calculating a compensating motion profile and applying the profile to the motor which drives the pump
5961300 Diaphragm pump plural component dispensing system with integrator October 5, 1999
A relatively inexpensive and easy to operate plural component dispensing apparatus is made up of one or more double sided pumps, such as an air-operated double diaphragm pump. The manifolding on the pumps is divided so that each side of the pump pumps one of the components of the plu
5947385 Vehicle towed apparatus for striping of roads September 7, 1999
A line striper is attached to a vehicle with a two point hitch and has a swivelable rotatable wheel mounted thereunder to support the striper on the ground. A main beam is releasably clamped and may be slid from side to side depending on operator preference. The gun boom may then be loca
5941418 Multiple fluid dispensing system August 24, 1999
A device for dispensing multiple fluids in, for instance, a vehicle service facility is provided with a plurality of control modules. Each of those modules is capable of being connected to a number of pumps, a number of solenoid valves and a number of meters. This system may be set up su
5882428 Method of flushing a circulation system using first and second rigs March 16, 1999
This cleaning system is designed to automated and minimize or eliminate the excessive amount of manpower associated with other suction processes. It is a combination of paint recovery, and flushing methods in a automated manner. It is designed to minimize the paint lost as a result of co
5860794 Double diaphragm pump with air valve block moving in a rectangular pattern January 19, 1999
An air operated double diaphragm pump is provided with an air valve assembly which allows the valve cup to move in a rectangular pattern.
5699817 Turbulent flow conduit cleaning apparatus December 23, 1997
A system for cleaning of piping system using turbulent flow is provided by providing an input of a fixed flow rate of compressed air and a fixed flow rate of cleaning fluid. The fixed fluid flow is provided by either using an electric pump which may be controlled to do so or by restricti
5647543 Electrostatic ionizing system July 15, 1997
An improved electrostatic ionizing system for use in connection with a spray gun, having a conductive needle positioned near the center of the spray gun spray pattern, the needle having a diameter of less than about 250 micrometers and a needle tip sharpened to have a radius of curvature
5605446 High viscosity material pump having valved priming piston February 25, 1997
A reciprocable liquid pump having a priming cylinder affixed beneath the lower valve housing, and a priming piston rod affixed to the lower end of the pump piston valve assembly. A priming piston and priming valve are affixed to the lower end of the priming piston rod, the priming piston
5586045 Method of calibrating a high resolution flowmeter and measuring volume flow December 17, 1996
A method of calibrating and measuring volume flow through a gear-type flowmeter, having a magnetic sensor affixed to the flowmeter to detect incremental movement of the flowmeter teeth. The sensor is connected to an analog-to-digital converter and computer processor, which receives and
5567130 Reinforced cover configuration for a diaphragm pump October 22, 1996
A diaphragm pump housing is designed for molding out of plastic and utilizes a ribbing design which allows a high degree of strength while using a minimal amount of material and/or material having lesser strength. The rib design has an outer circumferencial rib about the periphery of the
5553493 High resolution flowmeter with wear detection September 10, 1996
An apparatus for measuring volume flow through a gear-type flowmeter, having a magnetic sensor affixed to the flowmeter to detect incremental movement of the flowmeter teeth. The sensor is connected to an analog-to-digital converter and computer processor, which receives and stores s
5526986 Waterbase voltage block and paint valve June 18, 1996
A voltage isolation device for controlling the flow of conductive liquid between a liquid supply source and a liquid destination source. The isolation device has an inlet connected to the supply source and has a yoke slide valve positionable along a pair of rods; one of the rods enga
5456583 Liquid pump October 10, 1995
An improvement in reciprocable liquid pump construction to facilitate maintenance and repair of certain high-wear pump components without the necessity of removing the pump from the work site. The pump has a threadable and removable cylinder, intake housing, piston, piston packing an
5441297 Power unit cart August 15, 1995
The power unit cart of the present invention provides for the quick, efficient, and easy replacement of either an engine or an electrical motor power unit as the power source for a cart-mounted spray painting pumping system. The power unit cart includes a main frame which has a partial
5433587 Paint circulating method with viscosity indicator and paint agitating means July 18, 1995
A paint circulation system for supplying paint to a plurality of distributors utilizing a circulating pump to circulate paint to the distributors and an injection pump operated by a closely controlled electric motor for injecting paint into the circulation network from a paint supply
5407332 High suction intake wiper April 18, 1995
In a priming piston loading double acting pump for high viscosity materials, the shovel plate assembly is formed of a flexible, abrasion resistant disk or cup. The disk may be made from silicon rubber and the cup may be made from a glass filled Teflon polytetrafluoroethylene material
5407106 Automatic/manual sealant disperser with attachable handle and reversible valve seat April 18, 1995
The dispense valve is designed for application of high viscosity fluids and is designed so that it is equally effective and usable in manual or automatic versions. The valve is air operated and the air section and fluid sections may be swiveled relative to one another to allow the inlet
5375634 Variable mass flow rate fluid dispensing control December 27, 1994
A liquid dispensing and control system having dispensing nozzles positioned for dispensing into a receptacle on a weight-sensing device, where all dispensing nozzles are respectively coupled to liquid pumps for delivering liquids from different containers to the nozzles, and a control co
5372389 Nozzle swivel joint December 13, 1994
The nozzle swivel joint includes two couplings which are joined together at mutually flat interface surfaces. Each coupling has an axial flow passage, and the two couplings are held together in mutually rotatable position by a manifold with a threaded end; the manifold having inlet and o
5368454 Quiet check valve November 29, 1994
This invention represents an improvement in a standard four ball reciprocating piston pump. Such pumps utilize a greatly enlarged seat to provide hydraulic cushioning of the check balls in order to greatly quiet operation. A seat width on the order of 6% of the ball's circumference is
5368452 Double diaphragm pump having two-stage air valve actuator November 29, 1994
A double diaphragm pump operated by selectively switching pressurized air into either of two diaphragm chambers; the air actuator valve is a cup valve which is slidable over orifices in a valve plate, and actuable by air pistons; the air pistons are coupled via passageways to a pilot val
5368232 Striping apparatus for vehicle travel surfaces November 29, 1994
A stripe painting apparatus is attachable to square opening hitch receivers mounted on the rear of a pickup truck or other vehicle. The apparatus includes a transverse tubular sleeve in which a boom may be slidably locked to extend outwardly to the left or right. A forwardly extending
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