Method and system for improving hand cleanliness

• US 5,812,059 A
• Filed: 02/23/1996
• Issued: 09/22/1998
• Est. Priority Date: 02/23/1996
• Status: Expired due to Term

• Current Assignee: Sloan Valve Company
• Original Assignee: Sloan Valve Company
• Inventors: Adler, Lee M., Shaw, Daniel C.
• Primary Examiner(s): Wu, Daniel J.
• Application Number:
  US08/605,991
• Time in Patent Office: 942 Days
• Field of Search: 340/286.09, 340/286.07, 340/573, 340/691, 340/541, 340/567, 340/545, 340/539, 367/93, 455/88
• US Class Current: 340/573.1
• CPC Class Codes: G08B 21/245 Reminder of hygiene compliance policies, e.g. of washing hands

Abstract

A system and corresponding method for enhancing hygiene in a food handling environment include an indicator to be worn by a worker in the food handling area, an activating device located outside of the food handling area, a hand cleaning station located proximate or within the food handling area (remote from the restroom), and a deactivating device operatively associated with the hand cleaning station. Upon leaving the food handling area, the indicator worn by the worker is activated when the worker enters a predetermined area proximate the activating device. Thereafter, the indicator is deactivated by the deactivating device only when it is determined that the worker has utilized the hand cleaning station proximate the food handling area. In such a manner, the prior art problem of worker contamination occurring between, for example, the restroom and food handling area is substantially eliminated. According to alternative embodiments, the system and method may be used in hospital environments so as to prevent germs from spreading from one patient to another by way of medical personnel.

Claims

1. A system for enhancing worker hygiene in a food handling environment including a food handling area and a bathroom, the system comprising:

an indicator to be worn by a worker in the food handling environment, said indicator for generating an alarm signal when in an activated state indicative of possible worker contamination, said alarm signal only being generated after a predetermined delay period has expired following activation of the indicator;

a continuously activated activating device located outside of and between said food handling area and said bathroom, said activating device for continuously emitting a first activating signal which activates said indicator when the worker wearing said indicator exits said food handling area;

a hand cleaning station located proximate said food handling area and remote from said bathroom, said hand cleaning station for allowing the worker wearing the indicator to clean his/her hands after leaving said bathroom but before handling food and before said predetermined delay period has expired; and

a deactivating device operatively associated with said hand cleaning station and disposed proximate the food handling area, said deactivating device emitting a second deactivating signal which deactivates said indicator worn by the worker when it is determined that the user has used said hand cleaning station so that the possibility of worker contamination in the food handling area is reduced.

2. The system of claim 1, wherein said hand cleaning station and said deactivating device are located in said food handling area.

3. The system of claim 2, further comprising means for causing said indicator to generate the alarm signal when said indicator has not been activated for a predetermined period of time.

4. The system of claim 2, further comprising means for causing said deactivating device to emit said second signal after it has been determined that the worker has dried his/her hands by way of a towel dispenser or blower at said hand cleaning station.

5. The system of claim 1, wherein said alarm signal is generated by one of an optical light emitting device, a vibrating device, or a buzzer.

6. The system of claim 1, further comprising means for causing said indicator to generate the alarm signal when said indicator has not been deactivated from the activated state for a predetermined period of time.

7. A method of improving hand cleanliness in a food handling area, requiring clean hands, the method comprising the steps of:

providing a clean area where clean hands are required;

providing an indicator to be worn by a user in the clean area, the indicator for emitting an alarm signal if not subject to a deactivating signal within a predetermined time period;

counting down the predetermined time period;

resetting the predetermined time period upon the indicator receiving the deactivating signal, the deactivating signal being generated upon determination that the user has cleaned his/her hands at a hand cleaning station; and

emitting an alarm signal from the indicator when the indicator does not receive the deactivating signal during the predetermined time period, whereby the alarm signal is emitted when the user fails to clean his/her hands before expiration of the predetermined time period.

8. The method of claim 7, wherein the clean area is a food handling area, whereby potential contamination of food by way of the user'"'"'s hands is substantially reduced.

9. The method of claim 8, wherein the predetermined time period is less than about one hour, and the hand cleaning station and deactivating device for generating the deactivating signal are both located in the food handling area.

10. A system for enhancing worker hygiene in a food handling area, the system comprising:

an indicator to be worn by a worker in the food handling area, said indicator for generating an alarm signal if it does not receive a deactivating signal within a predetermined time period;

a hand cleaning station located proximate said food handling area, said hand cleaning station for allowing the worker wearing the indicator to clean his/her hands;

a deactivating device operatively associated with said hand cleaning station, said deactivating device for emitting a deactivating signal to be received by the indicator when it is determined that the user has used said hand cleaning station; and

means for causing said indicator to emit said alarm signal when said predetermined time period expires before said indicator receives said deactivating signal, whereby the worker is required to clean his/her hands at said hand cleaning station at some time during every predetermined time period in order to avoid emittance of said alarm signal thereby enhancing hand cleanliness within the food handling area.

11. The system of claim 10, wherein said means for causing said indicator to emit said alarm signal includes a timer for counting down each said predetermined time period, and resetting means for resetting said timer each time said indicator receives said deactivating signal.

12. The system of claim 11, wherein said deactivating device is located within the food handling area, and said deactivating signal includes one of an infrared (IR) or a radio frequency (RF) based signal.

13. The system of claim 12, wherein said alarm signal emitted from said indicator includes one of an audio signal, a vibration based signal, or an optical signal.