EP3130406A1 - Automatischer abzugverriegelungssicherheitsmechanismus - Google Patents

Automatischer abzugverriegelungssicherheitsmechanismus Download PDF

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Publication number
EP3130406A1
EP3130406A1 EP16183796.8A EP16183796A EP3130406A1 EP 3130406 A1 EP3130406 A1 EP 3130406A1 EP 16183796 A EP16183796 A EP 16183796A EP 3130406 A1 EP3130406 A1 EP 3130406A1
Authority
EP
European Patent Office
Prior art keywords
trigger
safety mechanism
handle
locking member
lock safety
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP16183796.8A
Other languages
English (en)
French (fr)
Inventor
Edwin de Klerk
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Edker BV
Original Assignee
Edker BV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Edker BV filed Critical Edker BV
Publication of EP3130406A1 publication Critical patent/EP3130406A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B12/00—Arrangements for controlling delivery; Arrangements for controlling the spray area
    • B05B12/002—Manually-actuated controlling means, e.g. push buttons, levers or triggers
    • B05B12/0022—Manually-actuated controlling means, e.g. push buttons, levers or triggers associated with means for restricting their movement
    • B05B12/0024—Manually-actuated controlling means, e.g. push buttons, levers or triggers associated with means for restricting their movement to a single position
    • B05B12/0026—Manually-actuated controlling means, e.g. push buttons, levers or triggers associated with means for restricting their movement to a single position to inhibit delivery
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/14—Arrangements for preventing or controlling structural damage to spraying apparatus or its outlets, e.g. for breaking at desired places; Arrangements for handling or replacing damaged parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B9/00—Spraying apparatus for discharge of liquids or other fluent material, without essentially mixing with gas or vapour
    • B05B9/01—Spray pistols, discharge devices

Definitions

  • the invention pertains to the technical field of airless spray equipment, for example airless spray guns or high pressure hand-held spray guns.
  • the invention relates to safety mechanisms for such airless spray equipment.
  • Airless spray equipment such as an airless paint sprayer
  • Airless spray equipment is customarily employed in many painting applications. For instance, it is used by contract painters to paint heavy duty industrial, chemical and marine coatings and linings. Advantages include (1) speed, since airless spraying is at least 4 times faster than brush applications and at least 2 times faster than roller applications; (2) quality, since airless sprayers produce an even coat of paint on all types of surfaces, leaving a high quality finish; and (3) versatility, since airless sprayers can be used for a wide range of coating materials.
  • speed since airless spraying is at least 4 times faster than brush applications and at least 2 times faster than roller applications
  • quality since airless sprayers produce an even coat of paint on all types of surfaces, leaving a high quality finish
  • versatility since airless sprayers can be used for a wide range of coating materials.
  • the paint or other fluid is maintained in the airless spray equipment under very high hydraulic pressure. On actuation, this equipment typically produces a spray from about one to 500 bar (7200 PSI).
  • the high pressures atomize the paint (or coating), using different diffuser (or tip) sizes to achieve desired atomization and spray pattern size.
  • Airless spray equipment particularly manually operated equipment such as airless spray guns, is thus inherently hazardous, as the paint spray in close proximity to the skin of the operator or a bystander may cause injury to the skin and further.
  • the highly pressurized spray is capable of penetrating exposed portions of the body, thereby injecting paint into the body. This may initially look like a cut, but it is a serious injury that can result in amputation. Fluids splashed in the eyes can also cause serious injury. Due to the high pressure at which the fluid is emitted, a strong recoil action may also occur when these types of gun are triggered. If unprepared, the operator's hand could be forced back towards his body or if he is not standing securely, he could lose his balance and fall, resulting in serious injury.
  • a trigger lock mechanism should be provided.
  • Document US4105164 discloses a trigger lock mechanism for hand held spray guns, with an arm normally positioned to block operation of a trigger of the gun, but movable by an operator to release the trigger for operation.
  • This trigger lock is deemed particularly useful with airless paint spray guns, and the arm is generally U-shaped and secured at its free ends to opposite sides of the trigger.
  • the closed end of the arm extends around the rear of the gun whereat a housing normally blocks rearward movement thereof, and there through the trigger, when the trigger is in its unoperated position.
  • a housing normally blocks rearward movement thereof, and there through the trigger, when the trigger is in its unoperated position.
  • the operator or user must manually position the trigger lock mechanism back to its unoperated position in order to be able to use the trigger. This leads to a slight delay in time before the gun can be activated and can be cumbersome in some practical work situations.
  • Document US2007228190 discloses a hand-held trigger operated spray gun for dispersing high pressure liquids.
  • the spray gun also has trigger lock features, comprising an elongated trigger lock member supported on the trigger for pivotable movement between an inactive position adjacent the trigger and an active position in outwardly pivoted relation to the trigger.
  • the spray gun's body is formed with a recess for receiving a free end of the trigger lock member when the trigger is in the deactuating position and the trigger lock member is in an active position.
  • the trigger lock member is formed with a locating nib engageable with the trigger for positioning the trigger lock member in predetermined relation to the trigger lock member receiving recess when the trigger is in the deactuated position.
  • the trigger is pivotably mounted in depending relation to the handle portion, and the trigger lock member is pivotably mounted adjacent a lower end of the trigger.
  • This type of trigger lock is for instance not spring-biased, and the document further mentions that the trigger lock can be moved to and retained in an inactive position during usage of the spray gun and can also be located in position with the assistance of the locating nib for locking the trigger during periods of non-use, for preventing accidental dangerous high pressure discharge from the spray gun.
  • Document US4225087 discloses an automatic safety mechanism for airless spray equipment such as airless spray guns of the type having a trigger mechanism for actuating a gun spraying mechanism by pivotal movement of the trigger means toward the hand-grip means. It includes a rigid locking member spring-biased and disposed for automatic operative interposition between said hand-grip and trigger means upon full release of said trigger means.
  • the locking means is connected to the spray gun via two hinges, making it less easy to disassemble if so desired, e.g. for cleaning or servicing purposes.
  • the type of spray gun is of a wholly different type than the one envisioned in the present invention.
  • a lever is provided near the top of both the trigger and the handle, which does not appear comfortable to manipulate with one hand.
  • the present invention aims to resolve at least some of the problems mentioned above.
  • the invention thereto aims to provide an automatic trigger lock safety mechanism and a locking method for airless spray equipment which substantially minimizes the hazards associated with the use of such equipment.
  • the present invention provides an automatic trigger-lock safety mechanism, according to claim 1.
  • the present invention provides a device comprising an automatic trigger-lock safety mechanism according to an embodiment of the invention, such as an airless spray gun or a high pressure spray gun.
  • the present invention provides a method for automatically locking a device, said device comprising a handle and a trigger, whereby said trigger is locked in an inoperable state when inactive via said pivoting means coupled to said trigger, and whereby said locked status is removed by applying a force to said trigger, thereby displacing the pivoting means towards a position which is substantially parallel to said trigger and handle.
  • the operator of such a device is protected from inadvertent actuation of said device, since after the trigger has been fully released, the trigger-lock safety mechanism must be intentionally disengaged to permit actuating movement of the trigger.
  • the present invention concerns an automatic trigger-lock safety mechanism, a device comprising an automatic trigger-lock safety mechanism, and a method for automatically locking a device.
  • the safety mechanism will automatically lock a device (e.g. non-spraying position) unless the mechanism is actively operated by a user.
  • Said safety mechanism is thus designed to allow simple manipulation by the user to disengage the locking mechanism and permit actuating movement of the trigger mechanism.
  • the user is thus enabled to fully operate the spraying mechanism with one hand and shut off the flow when wanted; at the same time the user is protected from inadvertent actuation of the spraying mechanism, since after the trigger mechanism has been fully released, the lock mechanism must be intentionally disengaged to permit actuating movement of the trigger.
  • automated refers to having the capability of moving independently of an operator's actions, e.g. automatically locking a device to an inactive condition.
  • wetted parts refers to materials that come in direct contact with the sprayed medium (gas, liquid or coating).
  • proximal refers to being closer to the body, e.g. the hand of a person who uses a device, such as a spray gun.
  • the invention provides an automatic trigger-lock safety mechanism, comprising:
  • said locking member comprises a guiding element at its proximal end, suitable for running up and down said handle.
  • Said guiding element may further comprises at least one sliding or rolling element, preferably a wheel, at the proximal end of said locking member, to enable said guiding element to run up or down said handle.
  • said guiding element comprises a central recess provided in said handle, defining a central plane, and said recess being able to receive the proximal end of said locking member.
  • Said guiding element may further comprise at least one sliding or rolling element, preferably a wheel, at the proximal end of said locking member to enable said guiding element to run up or down said recess provided in said handle.
  • a guiding element advantageously ensures that said pivoting means comprised of the locking member can be efficiently displaced, such that said trigger is locked in an inoperable state when inactive, and whereby the locked status is removed by applying a force to said trigger, thereby displacing the pivoting means towards a position which is substantially parallel to said trigger and handle.
  • the guiding element ensures a smooth displacement of the locking member along the handle, thereby actively ensuring locking and unlocking of said trigger.
  • said trigger is provided with an opening for receiving said pivoting means, when said trigger is in the depressed position.
  • Said automatic trigger-lock safety mechanism can be manually disengaged by a user, permitting an actuating movement of said safety mechanism.
  • said manual disengagement occurs via the presence of a release button on said trigger.
  • Said release button is present on the side of the trigger not facing the handle, which allows easy manual manipulation.
  • Said release button is releasibly connected to said locking member by means of trigger connections means, preferably a spring element such as a carbine release spring.
  • trigger connections means preferably a spring element such as a carbine release spring.
  • the locking member is automatically interposed between trigger and handle to prevent actuation of said trigger, unless the action of the spring is set off by the operator.
  • said locking member is in the released position transversely positioned to said trigger and extends through an opening in said trigger.
  • the part of the locking member extending through the trigger, away from the handle, will enable the unlocking of the mechanism.
  • Said locking member of said pivoting means extending through an opening in said trigger and positioned generally transverse to said trigger, comprises a trigger-connection means to connect said locking member to said trigger.
  • said trigger-connection means of said locking member comprises at least one spring.
  • said trigger-connection means of said locking member comprises at least one magnet.
  • said trigger-connection means of said locking member comprises at least one weighted element, thereby making said locking member susceptible to a weight transfer.
  • Said locking member may also be connected to said trigger through combinations of trigger-connection means, i.e. at least one spring, at least one magnet and/or at least one weighted element.
  • said pivoting means in combination with said locking member extending through said trigger, ensures an automatic locking of said trigger, so that an operator does not need to manipulate e.g. a lever when he wishes to inactivate said trigger.
  • the pivoting means will automatically return to its original position and lock said trigger, so no pressurized material can leave the spray gun.
  • said locking member can advantageously become comprised within said trigger when the trigger is manually activated, e.g. by collapsing into a recess which is provided at the back of a typical trigger.
  • the opening is designed as such, so that said trigger can completely receive said locking member. This facilitates the use of said trigger-lock safety mechanism, as said trigger can be squeezed adequately and easily.
  • the embodiments as described above allow implementation on devices such as airless spray guns, and provide a safe mechanism for use whereby the spray gun will be prevented from spraying, if not desired by the user. Such mechanism may prevent a variety of accidents.
  • the compact design of said pivoting means coupled to said trigger also allows for easy assembly onto a device such as an airless spray gun, even onto an existing device after minimal modifications. It equally allows for easy disassembly, e.g. for cleaning or servicing purposes.
  • the invention therefore provides a device comprising an automatic trigger-lock safety mechanism as described above.
  • a device comprising an automatic trigger-lock safety mechanism as described above.
  • said handle can be removed from said device for cleaning or servicing purposes, e.g. by unscrewing or by removing from a snapping means.
  • Said handle may further comprise a positioning means for positioning said recess towards said trigger.
  • said positioning means comprises a screw thread, a snapping means or a guiding mark. This advantageously ensures that the handle is correctly assembled before its first use, or correctly repositioned after cleaning or servicing interventions.
  • said device is connectable to a source of fluid or gas.
  • Said device may further comprise a hand-held spray gun, such as an airless spray gun or a high pressure spray gun, a fuel gun, an electric screwdriver, or an electric drill.
  • Said automatic trigger lock safety mechanism can indeed also be beneficial in other types of equipment whereby an operator may be at risk when said device accidentally remains actuated.
  • a high fluid pressure is used to atomize e.g. paint.
  • Said fluid is thus forced through a diffuser with e.g. an elliptical shaped orifice, whereby said orifice shape and size help determine the spray pattern size, shape and material flow rate.
  • Such high pressures are known to cause increased material bounce-back and increased diffuser wear.
  • the material of said device comprises steel, stainless steel, aluminum, rubber, silicone and/or plastic.
  • the material of the wetted parts of said device may comprise steel, stainless steel, aluminum, acetal, polyethylene, nylon, polypropylene, carbide, tungsten carbide, polyurethane and/or solvent-resistant o-rings.
  • pressure-resistant materials are standard in airless spray guns. This list is not exhaustive, as other materials that can withstand high pressures may also be used. Furthermore, this list does not limit the materials for connected equipment such a hose, a liquid container, etc.
  • the stem of the pressurized spray gun will be closed and no material will able to leave the spray gun, even when the spray gun is under 500 bar pressure. Te mechanism will prevent uncontrolled activation of the device, e.g. in situatiosn where the device falls on the ground, or the user is affected by the high pressure. As soon as the trigger is released, said device will no longer function (that is, spraying).
  • the invention provides a method for automatically locking a device as described above, said device comprising a handle and a trigger, whereby said trigger is locked in an inoperable state when inactive via pivoting means coupled to said trigger.
  • Such a device comprising a handle and a trigger, is unlocked by applying a force to said trigger, such that pivoting means are displaced by the following simultaneous actions:
  • Said device may further be automatically locked to an inactive condition by removing said force from said trigger, thereby exerting a reaction force on said pivoting means such that said trigger is prevented from rotating to the depressed position thereof.
  • the operator is enabled to fully operate the spraying mechanism with one hand and shut off the flow of e.g. paint without engagement of the safety mechanism.
  • said trigger is released suddenly, either by coincidence or on purpose, the pivoting means will automatically return to its original position and lock said trigger.
  • the stem is closed automatically and no material can leave the spray gun, even when the spray gun is under a 500 bar (7200 PSI) pressure.
  • the automatic trigger lock safety mechanism system will lock the trigger, so no pressurized material can leave the spray gun.
  • FIG. 1 shows a device according to a possible embodiment of the invention, in particular an airless spray gun with an automatic trigger lock safety mechanism.
  • the spray gun features a body (1) defining an interior. Within this interior, a flow path for a fluid such as paint or coating is present.
  • the body further comprises an inlet in communication with a fluid source, such as a paint container, and an outlet.
  • the body's outlet is a valve having a valve member in the flow path, which is movable between a closed position and an open position in which fluid travels from the inlet to the outlet.
  • a diffuser (2) is connected to the outlet, to diffuse the atomized fluid.
  • a guard (3) is connected to the diffuser (2) at the front of the spray gun, to protect the operator from coming into contact with the diffuser (2) when spraying and to hold the diffuser (2) in place.
  • a handle (4) is attached to allow an operator to hold the spray gun.
  • a trigger (5) is attached to the body (1). The trigger (5) can be rotated between depressed and released positions, which results in actuation and deactuation of the spray gun, respectively.
  • a trigger guard (6) is connected to the bottom of the handle (4) and to the bottom of the body (1), to protect the trigger (5) from being depressed, e.g. should the spray gun accidentally fall.
  • the automatic trigger lock safety mechanism of this embodiment comprises a pivoting means (8) coupled to the trigger, thereby locking the trigger in an inoperable state when inactive.
  • the pivoting means (8) further comprises a locking member (9) which is positioned generally transverse to the trigger (5) in a resting situation, and extends through an opening in the trigger (5), thereby being connected to the trigger (5) via a pivot (10).
  • the locking member (9) is connected to the trigger via a trigger-connection means, which is in this embodiment a spring (11) that is connected to the trigger (5).
  • the locking member (9) is engageable by an operator to move from a locked position to an unlocked position whereat the spray gun is in an active condition, by applying a force to the trigger (5), thereby displacing the pivoting means towards a position which is substantially parallel to the trigger (5) and handle (4).
  • the locking member (9) in this embodiment further comprises two wheels (12) at the rear (i.e., towards the handle), to run up or down the handle (4) along a path that extends from approximately the middle of the handle to the top of the handle.
  • FIG 2 shows an alternate embodiment of the automatic trigger lock safety mechanism in a spray gun according to the present invention.
  • the handle (4) comprises a central recess (13) to receive the wheels (12) at the rear of the locking member (9).
  • this recess (13) can further facilitate the pivoting motion of the locking member (9) during actuating of the trigger (5), and thus actuation of the spray gun.
  • the recess (13) can be of any size and shape that fits within the handle (4). For instance, a longer and deeper recess could allow a more compact pivoting means (8) as a whole. A simpler locking member (9) without wheels may also be received by the recess (13) as pictured in this embodiment. This would further minimize the complexity of the pivoting means (8).
  • a positioning means for positioning the recess towards the trigger is provided.
  • the bottom of the body (1) where it connects with the handle (4) and the top of the handle (4) itself are here both provided with guiding marks (14), which should be properly aligned.
  • the internal screw thread which connects the handle (4) with the body (1) may be precisely designed as to analogously align the recess (13) with the trigger (5).
  • Figures 3a -d show a sequence of steps in a method for unlocking an automatically locked airless spray gun, using the embodiment as illustrated in Figure 1 .
  • Figure 3a assumes an operator is already holding the inactive spray gun in his hand, while the arrow depicts the resulting motion of the operator pushing down the rod-like locking member (9) of a spring-biased (10) pivoting means (8) as he starts to squeeze the trigger (5).
  • Figure 3b consequently shows the motion whereby locking member (9) of the pivoting means (8) is being pushed further down by the operator, while the two wheels (12) at the rear of the locking member (9) move upward along the handle (4).
  • Figure 3c shows the trigger (5) being rotated further to a fully depressed position and the locking member (9) of the pivoting means (8) being fully collapsed and aligned with both the handle (4) and the trigger (5), thereby effectively activating the spray gun.
  • Figure 3d shows the result of the operator having removed force from the trigger (5), whereby a reaction force is exerted on the spring-biased (11) pivoting means (8), such that the trigger (5) is prevented from rotating to the depressed position again, thereby automatically locking the spray gun back in its inactive condition.
  • Other, intermediary positions of the pivoting means (8) in the present automatic trigger lock safety mechanism can be considered as occurring sequentially in-between the positions that are already depicted in Figures 3a -d .
  • FIGS. 4 to 6 show another embodiment of the current invention.
  • the spray device in the current embodiment a spray gun is provided by an automatic trigger-lock safety mechanism according to the current invention.
  • the spray device is provided of a body (1), a diffuser (2), and optionally a guard (not shown) as described above.
  • a handle (4) allows a user to hold the device whereby the trigger (5) allows the actuating of the device.
  • the stem of the pressurized spraying device will open and material will be able to flow/spray from said device.
  • the trigger (5) is provided with a button (14) positioned at the side of the trigger (5) facing away from the handle (4).
  • the button (14) is by means of a spring element (15) releasibly connected to a locking member (9) which at is proximal end is provided with a guiding element (12) in the form a wheel or two wheels.
  • a guiding element (12) in the form a wheel or two wheels.
  • the device When the button is released, either voluntarily or in unexpected circumstances (e.g. a fall), the device will automatically stop functioning, as the lock-safety mechanism will be activated.
  • the trigger (5) will automatically become locked due to the locking member (9) reconnection with the button (14) by means of the spring element (15).
  • the stem of the device will be closed, and no material, even when the device is subjected to a high pressure, will flow/spray from the device.
  • a lock shaft axle (16) will enable blocking of the locking member (9), whereas the shutter shaft (17) enables movement (turning) of the release button (14).

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EP16183796.8A 2015-08-11 2016-08-11 Automatischer abzugverriegelungssicherheitsmechanismus Withdrawn EP3130406A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2015/068484 WO2017025138A1 (en) 2015-08-11 2015-08-11 Automatic trigger-lock safety mechanism, device comprising an automatic triggerlock safety mechanism and method for automatically locking a device such as an airless spray gun or a high pressure spray gun

Publications (1)

Publication Number Publication Date
EP3130406A1 true EP3130406A1 (de) 2017-02-15

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Application Number Title Priority Date Filing Date
EP16183796.8A Withdrawn EP3130406A1 (de) 2015-08-11 2016-08-11 Automatischer abzugverriegelungssicherheitsmechanismus

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MA (1) MA41000A (de)
WO (1) WO2017025138A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160279655A1 (en) * 2013-12-12 2016-09-29 Alfred Kärcher Gmbh & Co. Kg Valve gun for a high-pressure cleaner
US20190255549A1 (en) * 2018-02-22 2019-08-22 James A. McCommons Garden hose nozzle with trigger lock

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11406995B2 (en) * 2019-01-25 2022-08-09 Graco Minnesota Inc. Material spray gun
PL440204A1 (pl) * 2022-01-24 2023-07-31 Cobotex Spółka Z Ograniczoną Odpowiedzialnością Pistolet lakierniczy

Citations (8)

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Publication number Priority date Publication date Assignee Title
US4105164A (en) 1976-11-26 1978-08-08 Binks Manufacturing Company Trigger lock mechanism for spray guns
US4225087A (en) 1977-02-22 1980-09-30 The Sherwin-Williams Company Lock-off means for airless sprayer
US5199642A (en) * 1991-08-22 1993-04-06 Rankin George J High pressure water spray gun
US5636789A (en) * 1995-05-01 1997-06-10 Nlb Corp Fluid delivery system
US5975429A (en) * 1997-12-23 1999-11-02 J. Edward Stachowiak High pressure fluid apparatus for blast cleaning
US20070228190A1 (en) 2006-03-29 2007-10-04 Spraying Systems Co. Hand held trigger-operated spray gun
CN201768651U (zh) * 2010-08-26 2011-03-23 王瑛 无动力吸液式喷枪
WO2014189655A1 (en) * 2013-05-23 2014-11-27 Finishing Brands Holdings Inc. Spray tool locking system

Family Cites Families (3)

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Publication number Priority date Publication date Assignee Title
US3181798A (en) * 1962-07-18 1965-05-04 Spraying Systems Co Airless spray gun having spray and valve safety means
US5114049A (en) * 1990-10-31 1992-05-19 Calmar Inc. Child-resistant trigger sprayer
US7677476B2 (en) * 2005-05-02 2010-03-16 Campbell Hausfeld/Scott Fetzer Company Extension pole apparatus

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4105164A (en) 1976-11-26 1978-08-08 Binks Manufacturing Company Trigger lock mechanism for spray guns
US4225087A (en) 1977-02-22 1980-09-30 The Sherwin-Williams Company Lock-off means for airless sprayer
US5199642A (en) * 1991-08-22 1993-04-06 Rankin George J High pressure water spray gun
US5636789A (en) * 1995-05-01 1997-06-10 Nlb Corp Fluid delivery system
US5975429A (en) * 1997-12-23 1999-11-02 J. Edward Stachowiak High pressure fluid apparatus for blast cleaning
US20070228190A1 (en) 2006-03-29 2007-10-04 Spraying Systems Co. Hand held trigger-operated spray gun
CN201768651U (zh) * 2010-08-26 2011-03-23 王瑛 无动力吸液式喷枪
WO2014189655A1 (en) * 2013-05-23 2014-11-27 Finishing Brands Holdings Inc. Spray tool locking system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20160279655A1 (en) * 2013-12-12 2016-09-29 Alfred Kärcher Gmbh & Co. Kg Valve gun for a high-pressure cleaner
US9993832B2 (en) * 2013-12-12 2018-06-12 Alfred Kärcher Gmbh & Co. Kg Valve gun for a high-pressure cleaner
US20190255549A1 (en) * 2018-02-22 2019-08-22 James A. McCommons Garden hose nozzle with trigger lock

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Publication number Publication date
MA41000A (fr) 2017-09-26
WO2017025138A1 (en) 2017-02-16

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