Wirelessly controlled trigger start and chemical tank change-over for pressure washers
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B05B-007/32
B05B-009/01
B05B-003/02
B05B-012/08
B05B-012/14
B05B-009/00
B05B-012/00
B08B-003/02
B08B-003/08
B05B-007/24
B05B-007/04
B05B-009/04
출원번호
US-0051325
(2013-10-10)
등록번호
US-10130962
(2018-11-20)
발명자
/ 주소
Dey, John
Palicki, Brandon
Radwill, James
출원인 / 주소
Briggs & Stratton Corporation
대리인 / 주소
Foley & Lardner LLP
인용정보
피인용 횟수 :
0인용 특허 :
108
초록▼
A pressure washer includes a prime mover, a pump driven by the prime mover, and a spray gun fluidly coupled to the pump. The spray gun includes a flow-control valve movable between an open position and a closed position to control a fluid flow from the spray gun, a user interface for controlling the
A pressure washer includes a prime mover, a pump driven by the prime mover, and a spray gun fluidly coupled to the pump. The spray gun includes a flow-control valve movable between an open position and a closed position to control a fluid flow from the spray gun, a user interface for controlling the flow-control valve, a sensor configured to detect the state of the user interface, and a first wireless system electrically coupled to the sensor. In a first state of the user interface, the flow-control valve is in the closed position. In a second state of the user interface, the flow-control valve is in the open position. The pressure washer further includes a second wireless system electrically coupled to the prime mover. The second wireless system signals the prime mover to start to drive the pump to provide fluid to the spray gun upon receiving a start signal from the first wireless system indicating that the sensor detects the user interface in the second state.
대표청구항▼
1. A pressure washer, comprising: a prime mover;a pump driven by the prime mover;a spray gun fluidly coupled to the pump, the spray gun including a flow-control valve movable between an open position and a closed position to control a fluid flow from the spray gun, a user interface for controlling t
1. A pressure washer, comprising: a prime mover;a pump driven by the prime mover;a spray gun fluidly coupled to the pump, the spray gun including a flow-control valve movable between an open position and a closed position to control a fluid flow from the spray gun, a user interface for controlling the flow-control valve such that in a first state of the user interface, the flow-control valve is in the closed position, and in a second state of the user interface, the flow-control valve is in the open position, a sensor configured to detect the state of the user interface, a first wireless system electrically coupled to the sensor, and a power source configured to provide power to the first wireless system and the sensor;a second wireless system electrically coupled to the prime mover;a first chemical container fluidly coupled to the spray gun, the first chemical container configured to contain a first chemical;a second chemical container fluidly coupled to the spray gun, the second chemical container configured to contain a second chemical;a first chemical control valve fluidly coupled between the first chemical container and the spray gun to control the flow of the first chemical to the spray gun, the first chemical control valve electrically coupled to the second wireless system;a second chemical control valve fluidly coupled between the second chemical container and the spray gun to control the flow of the second chemical to the spray gun, the second chemical control valve electrically coupled to the second wireless system;a first position sensor configured to detect that the first chemical control valve is open, the first position sensor electrically coupled to the second wireless system; anda second position sensor configured to detect that the second chemical control valve is open, the second position sensor electrically coupled to the second wireless system;wherein the second wireless system signals the prime mover to start, thereby driving the pump to provide fluid to the spray gun upon receiving a start signal from the first wireless system indicating that the sensor detects the user interface in the second state:wherein the spray gun further includes a chemical user interface electrically coupled to the first wireless system, the chemical user interface configured to select between a first chemical mode, a second chemical mode, and a no chemical mode;wherein in the first chemical mode, the second wireless system signals the first chemical control valve to open upon receiving a first chemical mode signal from the first wireless system in response to selecting the first chemical mode with the chemical user interface;wherein in the second chemical mode, the second wireless system signals the second chemical control valve to open upon receiving a second chemical mode signal from the first wireless system in response to selecting the second chemical mode with the chemical user interface;wherein in the no chemical mode, the first chemical control valve is closed and the second chemical control valve is closedwherein the spray gun further includes a first chemical mode indicator electrically coupled to the first wireless system and a second chemical mode indicator electrically coupled to the first wireless system;wherein in the first chemical mode, the first wireless system signals the first chemical mode indicator to turn on upon receiving a first chemical mode indicator feedback signal from the second wireless system in response to the first position sensor detecting that the first chemical control valve is open; andwherein in the second chemical mode, the first wireless system signals the second chemical mode indicator to turn on upon receiving a second chemical mode indicator feedback signal from the second wireless system in response to the second position sensor detecting that the second chemical control valve is open. 2. The pressure washer of claim 1, wherein the second wireless system signals the prime mover to stop when the start signal from the first wireless system stops. 3. The pressure washer of claim 2, wherein the first wireless system continuously sends the start signal to second wireless system as long as the user interface is in the second state. 4. The pressure washer of claim 1, wherein the second wireless system signals the prime mover to stop when the start signal from the first wireless system stops for a predetermined amount of time. 5. The pressure washer of claim 4, further comprising: a stop delay user input device for varying the predetermined amount of time. 6. The pressure washer of claim 1, wherein the first position sensor and the second position sensor each comprises a voltage sensor. 7. The pressure washer of claim 1, further comprising: a frame supporting the prime mover, the pump, the first chemical container, and the second chemical container. 8. The pressure washer of claim 1, wherein the spray gun further comprises a lock that prevents the user interface from transitioning from the first state to the second state unless the lock is disengaged. 9. A pressure washer, comprising: a prime mover;a pump driven by the prime mover;a spray gun fluidly coupled to the pump, the spray gun including a first wireless system and a chemical user interface electrically coupled to the first wireless system, the chemical user interface configured to select between a first chemical mode, a second chemical mode, and a no chemical mode;a second wireless system;a first chemical container fluidly coupled to the spray gun, the first chemical container configured to contain a first chemical;a second chemical container fluidly coupled to the spray gun, the second chemical container configured to contain a second chemical;a first chemical control valve fluidly coupled between the first chemical container and the spray gun to control the flow of the first chemical to the spray gun, the first chemical control valve electrically coupled to the second wireless system; anda second chemical control valve fluidly coupled between the second chemical container and the spray gun to control the flow of the second chemical to the spray gun, the second chemical control valve electrically coupled to the second wireless system;a first position sensor configured to detect that the first chemical control valve is open, the first position sensor electrically coupled to the second wireless system;a second position sensor configured to detect that the second chemical control valve is open, the second position sensor electrically coupled to the second wireless system;wherein the spray gun further includes a first chemical mode indicator electrically coupled to the first wireless system and a second chemical mode indicator electrically coupled to the first wireless system;wherein in the first chemical mode, the first wireless system signals the first chemical mode indicator to turn on upon receiving a first chemical mode indicator feedback signal from the second wireless system in response to the first position sensor detecting that the first chemical control valve is open and the second wireless system signals the first chemical control valve to open upon receiving a first chemical mode signal from the first wireless system in response to selecting the first chemical mode with the chemical user interface;wherein in the second chemical mode, the first wireless system signals the second chemical mode indicator to turn on upon receiving a second chemical mode indicator feedback signal from the second wireless system in response to the second position sensor detecting that the second chemical control valve is open and the second wireless system signals the second chemical control valve to open upon receiving a second chemical mode signal from the first wireless system in response to selecting the second chemical mode with the chemical user interface; andwherein in the no chemical mode, the first chemical control valve is closed and the second chemical control valve is closed. 10. The pressure washer of claim 9, wherein the first position sensor and the second position sensor each comprises a voltage sensor. 11. The pressure washer of claim 9, further comprising: a frame supporting the prime mover, the pump, the first chemical container, and the second chemical container. 12. The pressure washer of claim 1, wherein the user interface comprises a trigger, wherein the sensor comprises a switch that completes a circuit when the trigger is pulled. 13. The pressure washer of claim 1, wherein the user interface comprises a trigger further comprising a locking switch configured to lock the trigger, the locking switch movable between a locked position and an unlocked position, wherein the sensor comprises a switch that completes a circuit when the locking switch is moved from the locked position. 14. The pressure washer of claim 9, wherein when switching between the first chemical mode and the second chemical mode, the second wireless system delays signaling the second chemical control valve to open upon receiving the second chemical mode signal from the first wireless system in response to selecting the second chemical mode with the chemical user interface. 15. The pressure washer of claim 14, wherein during the delay, the first chemical mode indicator is off and the second chemical mode indicator is off.
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