Hand-held fluid dispenser system and method of operating hand-held fluid dispenser systems

• US 6,938,795 B2
• Filed: 07/08/2004
• Issued: 09/06/2005
• Est. Priority Date: 11/26/2003
• Status: Expired due to Fees

• Current Assignee: Nordson Corporation
• Original Assignee: Nordson Corporation
• Inventors: Mendoza, Jeffrey, Barton, John D. Jr.
• Primary Examiner(s): Bomberg, Kenneth
• Application Number:
  US10/887,001
• Publication Number:
  US 20050109791A1
• Time in Patent Office: 425 Days
• Field of Search: 222/1, 222/52, 222/63, 222/113, 222/333, 222/470, 222/465.1
• US Class Current: 222/1
• CPC Class Codes: B05B 12/00 Arrangements for controlling delivery; Arrangements for controlling the spray area
• CPC Class Codes: B05C 17/002 with feed system for supplying material from an external source; Supply controls therefor B05C17/02 takes precedence
• CPC Class Codes: B05C 17/0133 Nut and bolt advancing mechanism, e.g. threaded piston rods

Abstract

A hand-held fluid dispenser having an enclosure for supporting a container holding a fluid to be dispensed, and a method of operating such hand-held fluid dispensers. A first proximity sensor is located inside the enclosure immediately adjacent one side of the enclosure, and a second proximity sensor is located inside the enclosure immediately adjacent an opposite side of the enclosure. An actuation circuit is supported inside the enclosure and is electrically connected to the first and second proximity sensors. The actuation circuit produces an actuation signal in response to detecting opposed digits of an operator being simultaneously in close proximity to the first and second proximity sensors.

Claims

1. A hand grip for an operator of a fluid dispenser system used to dispense a fluid, comprising:

an enclosure adapted to be held by the operator;

a first proximity sensor disposed inside said enclosure;

a second proximity sensor disposed inside said enclosure; and

an actuation circuit supported inside said enclosure and electrically connected to said first proximity sensor and to said second proximity sensor, said actuation circuit producing an actuation signal in response to sensing a first digit of the operator near said first proximity sensor and a second digit of the operator near said second proximity sensor that is effective to cause the fluid dispenser system to dispense an amount of the fluid.

2. The fluid dispenser of claim 1 wherein said enclosure further comprises a lamp electrically coupled with said actuation circuit, said lamp being powered by said actuation circuit in response to detecting the first digit proximate to said first proximity sensor.

3. The fluid dispenser of claim 1 wherein said enclosure includes a body portion and a grip portion extending from said body portion, said body portion has a first side and a second side opposite said first side, and said grip portion is adapted to be grasped by the operator.

4. The fluid dispenser of claim 3 wherein a first recess and said second recess are each shaped to receive one of the first and second digits of the operator.

5. The fluid dispenser of claim 3 wherein said first side of said body portion includes a first recess separated by a first area of said body portion from said first proximity sensor and said second side of said body portion includes a second recess separated by a second area of said body portion from said second proximity sensor.

6. The fluid dispenser of claim 5 wherein said first proximity sensor is disposed inside said enclosure adjacent said first side of said enclosure and proximate to said first recess, and said second proximity sensor is disposed inside said enclosure adjacent said second side of said enclosure and proximate to said second recess.

7. The fluid dispenser of claim 6 wherein said first proximity sensor includes an electrode facing toward said first recess and said second proximity sensor includes an electrode facing toward said second recess.

8. The fluid dispenser of claim 1 wherein said enclosure is further adapted to support a container holding the fluid to be dispensed.

9. A method of operating a fluid dispenser system for dispensing a fluid from a hand grip of the fluid dispenser system held by an operator, comprising:

sensing a proximity of a first digit of the operator to the hang grip;

sensing a proximity of a second digit of the operator to the hand grip; and

causing the fluid dispenser system to dispense the amount of the fluid in response to simultaneously sensing the proximity of the first digit to the hand grip and the proximity of the second digit to the hand grip.

10. The method of claim 9 wherein sensing the proximity of the first digit occurs before sensing the proximity of the second digit.

11. The method of claim 9 wherein sensing the proximity of the second digit occurs before sensing the proximity of the first digit.

12. The method of claim 9 further comprising:

energizing a lamp carried by the fluid dispenser in response to sensing the proximity of the first digit.

13. The method of claim 9 wherein sensing the proximity of the first digit further comprises:

sensing the proximity of the first digit with the first digit separated from the fluid dispenser in a non-contacting relationship.

14. The method of claim 9 wherein sensing the proximity of the second digit further comprises:

sensing the proximity of the second digit with the second digit separated from the fluid dispenser in a non-contacting relationship.

15. The method of claim 9 wherein the hand grip carries a container holding a reservoir of the fluid, and causing the fluid dispenser system to dispense the amount of the fluid further comprises:

producing an actuation signal in response to detecting the first digit of the operator near said first proximity sensor and a second digit of the operator near said second proximity sensor; and

transmitting the actuation signal to the fluid dispenser system that is effective to cause the fluid dispenser system to dispense the amount of the fluid from the container.