Hand sanitizing station

• US 4,942,631 A
• Filed: 09/21/1988
• Issued: 07/24/1990
• Est. Priority Date: 06/29/1988
• Status: Expired due to Term

• Current Assignee: Bi-Line Systems, Inc.
• Original Assignee: Barry Robertson, Rudy Rosa
• Inventors: Rosa, Rudy
• Primary Examiner(s): Recla, Henry J.
• Assistant Examiner(s): Donovan, Edward C.
• Application Number:
  US07/247,382
• Time in Patent Office: 671 Days
• Field of Search: 4/623, 4/638, 4/624, 4/620, 4/605, 4/628, 222/644, 222/132
• US Class Current: 4/623
• CPC Class Codes: E03C 1/057 touchless, i.e. using sensors

Abstract

A sanitizing station suitable for use in institutional kitchens and the like includes a plumbing cabinet, a sink mounted on top of the cabinet and a spray manifold for spraying a sanitizing solution mounted above the sink. The solution is a mixture of water and a sanitizing chemical. A pump is used to inject the sanitizing chemical into a water pipe that is connected to the spray manifold. Tubing connects an outlet of this pump to the pipe. An infrared proximity switch mounted above the sink operates both the pump and a solenoid valve located in the water pipe for a preset period of time upon placement of the user'"'"'s hands at a predetermined location above or in the sink. A covering hood can be mounted above the sink and it can provide support for the spray manifold and the switch.

Claims

1. A sanitizing device comprising as sink, spray means for spraying a sanitizing solution containing water located above said sink, pipe means for delivering said sanitizing solution to said spray means, said pipe means being adapted for connection to a source of water under pressure, an electrically operated valve for controlling the flow of water through said pipe means, said valve when open permitting water to flow therethrough, a feed pump for delivering a sanitizing chemical concentrate to water passing through said pipe means, first tubing connecting an outlet of said pump to said pipe means, second tubing connected at one end to an inlet of said pump and having an opposite end adapted for placement in a source of said concentrate, and electrical switch means for operating said device, said switch having both an off and an on condition and switching to the one condition upon placement of a user'"'"'s hands at a predetermined location near said sink, said switch being operatively connected to both said feed pump and said valve and in the on condition causing both said valve to pen and said feed pump to operate simultaneously, wherein said concentrate mixes with the water in said pipe means to form said sanitizing solution.

2. A sanitizing device according to claim 1 wherein said switch means is an infrared proximity switch mounted in the region of said sink.

3. A sanitizing device according to claim 2 wherein said pipe means is connected to sources of cold and hot water under pressure and said valve controlling the flow of water is a single solenoid valve mounted in said pipe means downstream of a pipe junction where the cold and hot water are mixed.

4. A sanitizing device according to claim 2 including further spray means and further pipe means connected thereto, said further spray means being mounted above said sink and adapted to provide a spray rinse and said further pipe means being connected to a source of water under pressure.

5. A sanitizing device according to claim 1 including a hood mounted above said sink and containing said spray means, said hood and sink together forming an open-sided spray chamber.

6. A sanitizing device according to claim 1 including a plumbing cabinet on which said sink is mounted, said cabinet containing said feed pump and said first and second tubing and having space to accommodate said source of said concentrate.

7. A sanitizing device according to claim 1 including said source of chemical concentrate in the form of a disposable container with a quantity of liquid sanitizing chemical therein, said opposite end of said second tubing being disposed in said chemical in said container.

8. A sanitizing device according to claim 1 including a plumbing cabinet on which said sink is mounted, a drain connected to the bottom of said sink and located at least in part in said cabinet, and said source of chemical concentrate.

9. A sanitizing device comprising a sink, a spray manifold with means for spraying a sanitizing liquid containing water arranged thereon, pipe means for delivering said liquid to said manifold, said pipe means being adapted for connection to a source of water under pressure at one end;

an electrically operated valve for controlling the flow of water through said pipe means, said valve in an open position permitting water to flow therethrough, pump means for injecting a sanitizing chemical into water in said pipe means in order to produce a mixture of said chemical and water comprising said sanitizing liquid;

means for connecting an outlet of said pump means to said pipe means; and

electrical switch means for operating said device, said switch having an off and an on condition and switching to the on condition upon placement of a user'"'"'s hands at a preset location near said sink, said switch being electrically connected to both said pump means and said valve and in the on condition causing both said pump means to operate and said valve to open.

10. A sanitizing device according to claim 9 wherein said switch is an infrared proximity switch fixedly mounted above said sink.

11. A sanitizing device according to claim 10 including a disposable container having a quantity of said sanitizing chemical therein and a plumbing cabinet on which said sink is mounted, said container being located in said cabinet.

12. A sanitizing device according to claim 10 including a covering hood mounted above said sink and spaced therefrom, said hood containing said spray manifold and said switch.

13. A sanitizing device according to claim 10 wherein said pipe means is connected to sources of both hot and cold water under pressure.

14. A sanitizing device according to claim 10 wherein said valve is to a solenoid valve controlling the flow of water through said pipe means.

15. A sanitizing device according to claim 9 including a second spray manifold with means for spraying a rinsing liquid arranged thereon and further pipe means for delivering said rinsing liquid to said second manifold.

16. A sanitizing device according to claim 9 including tubing connected to an inlet of said pump means at one end, the other end of said tubing being placed in said chemical in a container.

17. A sanitizing device according to claim 9 including a plumbing cabinet on which said sink is mounted, said cabinet containing said pump means and having accommodating space for a container of said sanitizing chemical.

18. A sanitizing device comprising a plumbing cabinet, a sink mounted on top of said cabinet, a spray manifold for spraying a sanitizing solution mounted above said sink, said solution comprising a mixture of water and a sanitizing chemical, a pump for said sanitizing chemical, pipe means connected to said spray manifold at one end and adapted for connection to a source of water under pressure at the other end thereof, an electrically operated valve for controlling the flow of water through said pipe means, said valve when open permitting water to flow therethrough, means for connecting an outlet of said pump to said pipe means whereby said pump can inject said chemical into water in said pipe means to form said solution, and an infrared proximity switch mounted above said sink and adapted to operate said device, said switch having both an off and an on condition and switching to the on condition upon placement of a user'"'"'s hands at a predetermined location near said sink, said switch being electrically connected to both said valve and said pump and in the on condition causing both said valve to open and said pump to operate.

19. A sanitizing device according to claim 18 including a covering hood mounted above said sink and supporting said spray manifold and said proximity switch.

20. A sanitizing device according to claim 18 wherein said valve is a solenoid valve.