Hand dryer with point of ingress dependent air delay and filter sensor
First Claim
Patent Images
1. A lavatory system comprising:
- a wash basin with a back wall, a front wall, and side walls joining the back and front walls;
a faucet operably connected to the wash basin;
a hand dryer in fluid communication with the wash basin and including a hand-receiving cavity, a top portion with an air outlet, and a bottom portion with an air outlet;
a first point of entry configured to receive a user'"'"'s hands along the front wall of the wash basin such that when drying hands, the user presents hands to be dried into a front of the hand-receiving cavity and draws the hands out of the hand-receiving cavity back toward the front wall of the wash basin;
a second point of entry configured to receive the user'"'"'s hands between the side walls such that when drying hands, the user presents hands to be dried into a side of the hand-receiving cavity and draws the hands out of the hand-receiving cavity toward the front wall of the wash basin;
a blower motor in fluid communication with the air outlets for blowing air through the air outlets; and
a controller that activates the blower motor after observance of a first delay period of a predetermined time if an object to be dried is presented to the hand-receiving cavity at the first point of entry and activates the blower motor after observance of a second delay period of a predetermined time longer than the predetermined time of the first delay period if an object to be dried is presented to the hand-receiving cavity at the second point of entry.
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Abstract
A lavatory system includes a hand dryer with at least a first proximity sensor and a second proximity sensor to detect an object for drying. A controller is communicatively linked to the first and second proximity sensors. The controller activates a drying operation after a first delay period if the first proximity sensor first detects the object for drying and activates a drying operation after a second delay period if the second proximity sensor first detects the object for drying. A filter flow sensor may also be provided to ensure proper filtering of the dryer'"'"'s air.
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Citations
17 Claims
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1. A lavatory system comprising:
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a wash basin with a back wall, a front wall, and side walls joining the back and front walls; a faucet operably connected to the wash basin; a hand dryer in fluid communication with the wash basin and including a hand-receiving cavity, a top portion with an air outlet, and a bottom portion with an air outlet; a first point of entry configured to receive a user'"'"'s hands along the front wall of the wash basin such that when drying hands, the user presents hands to be dried into a front of the hand-receiving cavity and draws the hands out of the hand-receiving cavity back toward the front wall of the wash basin; a second point of entry configured to receive the user'"'"'s hands between the side walls such that when drying hands, the user presents hands to be dried into a side of the hand-receiving cavity and draws the hands out of the hand-receiving cavity toward the front wall of the wash basin; a blower motor in fluid communication with the air outlets for blowing air through the air outlets; and a controller that activates the blower motor after observance of a first delay period of a predetermined time if an object to be dried is presented to the hand-receiving cavity at the first point of entry and activates the blower motor after observance of a second delay period of a predetermined time longer than the predetermined time of the first delay period if an object to be dried is presented to the hand-receiving cavity at the second point of entry. - View Dependent Claims (2, 3, 4)
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5. A lavatory system comprising:
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a wash basin with side walls along a front and sides of the wash basin and a backsplash along a back side of the wash basin; a hand dryer in fluid communication with the wash basin and including a hand-receiving cavity, a generally horizontal top portion extending from the backsplash above the wash basin with a first outlet port, and a bottom portion extending from the wash basin with a second outlet port, the hand-receiving cavity having a front opening point of entry and a side opening point of entry; a blower motor for blowing air through the outlet ports in fluid communication with the first and second outlet ports with a first and second hose, respectively; a faucet extending from the backsplash between the side walls; a controller that activates the blower motor after an object is placed between the outlet ports, wherein the contoller activates the blower motor after observance of a first delay period if an object to be dried is presented to the front opening point of entry and a second delay period if an object to be dried is presented to the side opening point of entry, wherein the second period of time is greater than the first period of time. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A lavatory system comprising:
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a wash basin with side walls along a front and sides of the wash basin and a backsplash along a back side of the wash basin; a hand dryer in fluid communication with the wash basin and including a hand-receiving cavity, a generally horizontal top portion extending from the backsplash above the wash basin with a first outlet port, and a bottom portion extending from the wash basin with a second outlet port, the hand-receiving cavity having first and second points of entry; a blower motor in fluid communication with the first and second outlet ports for blowing air through the outlet ports; a faucet extending from the backsplash between the side walls; and a controller communicatively linked to a first and a second proximity sensor that activates the blower motor after an object is placed between the first and second outlet ports, wherein the controller delays the start of the blower motor when the object is presented in the second point of entry, and wherein the blower motor is started without a delay when the object is presented in the first point of entry; and wherein the first point of entry is defined generally at a side of the hand-receiving cavity and the second point of entry is defined at a front of the hand-receiving cavity. - View Dependent Claims (13, 14, 15, 16, 17)
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Specification