Spot cleaning system and method

• US 5,203,044 A
• Filed: 09/06/1991
• Issued: 04/20/1993
• Est. Priority Date: 09/06/1991
• Status: Expired due to Fees

• Current Assignee: Cherokee Air Products Inc.
• Original Assignee: Cherokee Air Products Inc.
• Inventors: Jung, Herbert C. Jr.
• Primary Examiner(s): Coe, Philip R.
• Application Number:
  US07/755,637
• Time in Patent Office: 592 Days
• Field of Search: 8/149.1, 8/149.3, 8/158, 68/5 R, 68/5 A, 68/6, 68/20, 68/205 R, 68/222, 68/240
• US Class Current: 8/149.1
• CPC Class Codes: D06B 5/24 through articles, e.g. stockings
• CPC Class Codes: D06F 43/002 Spotting apparatus

Abstract

A substantially self-contained system and corresponding method provides practical spot cleaning of soiled garments without requiring the use of chlorinated solvents. A soiled garment may optionally be pretreated with a water base, nonchlorinated cleaner. Thereafter, a relatively high level of vacuum force is applied to the soiled garment to be cleaned while steam is directed onto the spot. The steam comprises the main cleaner when no pretreatment is used, and comprises the flushing agent whenever a water-based pretreatment cleaner is used. Drying effects obtained with the vacuum force may be augmented by the addition of compressed air directed onto the garment. A self-contained workstation practicing such methodology may include an electric water boiler for generating steam and an industrial grade vacuum pick-up with a waste collector for generating the relatively high vacuum force, preferably at least about 80 inches of mercury of static pressure.

Claims

1. A substantially self-contained spot cleaning system, comprising:

a self-supporting workstation, adapted for supporting other system components thereon, and including a generally upright vacuum arm with a vacuum area at which vacuum force applied to said vacuum arm is focused;

electric water boiler means, supported on said workstation, for generating steam at a steam output thereof;

a controllable steam spray gun and steam hose operatively interconnected with said boiler means steam output; and

vacuum means, supported on said workstation, for supplying a relatively high vacuum force to said vacuum arm, so that such vacuum force is applied to a soiled garment to be cleaned and which is received on said vacuum arm at said vacuum area thereof, and to which garment is applied steam with said controllable steam spray gun.

2. A system as in claim 1, wherein said system further includes:

means for holding additional water, supported on said workstation, for replenishing water to said boiler means; and

vacuum waste collector means, supported on said workstation, for receiving materials vacuumed through said vacuum arm under said vacuum force.

3. A system as in claim 1, wherein said relatively high vacuum force is at least about eighty inches of mercury of static pressure.

4. A system as in claim 1, wherein said system further includes a compressed air gun and associated hose for selected use with a source of compressed air for subsequently drying the garment to be cleaned.

5. A system as in claim 4, wherein said system further includes an electric air compressor, supported on said workstation, and connected to said air hose for driving said compressed air gun.

6. A system as in claim 1, wherein said workstation includes a support rack on which said boiler means and said vacuum means are received, an upper work surface on which a system user may work with the garment to be cleaned, and an upright hanging bar extending above said upper work surface and from which said steam spray gun may be suspended when not in use.

7. A system as in claim 6, wherein said workstation further includes adjustable legs for leveling of said upper work surface thereof, a sink built into said upper work surface, and a splashback panel adjacent said upper work surface.

8. A system as in claim 1, further including means for adjusting the position of said vacuum arm to facilitate access thereto by a system user.

9. A system as in claim 1, further including means for pretreating the soiled garment to be cleaned with a water-based cleaner prior to the application of steam thereto.

10. A method for substantially self-contained spot cleaning of soiled garments, comprising:

providing a self-supporting workstation supporting thereon a generally upright vacuum arm with a vacuum area at which vacuum force applied to said vacuum arm is focused, an electric water boiler means for generating steam at a steam output thereof, a controllable steam spray gun and steam hose operatively interconnected with said boiler means steam output, and vacuum means for supplying a relatively high vacuum force to said vacuum arm;

placing a soiled garment to be cleaned onto said vacuum arm with a spot or stain on such garment situated at said vacuum area; and

operating said vacuum means and manipulating said steam spray gun so as to apply steam to such garment while also applying said relatively high vacuum force thereto so that the garment is steam cleaned and dried.

11. A method as in claim 10, further including pretreating the soiled garment to be cleaned with a water-based cleaner so that said applying of steam acts as a flushing agent for such cleaner and said relatively high vacuum force acts as a drying agent for such cleaner.

12. A method as in claim 11, further including applying a stream of compressed air to said garment to supplement drying thereof with said vacuum force.

13. A method as in claim 10, further including:

providing means for holding additional water, supported on said workstation, for replenishing water to said boiler means; and

providing vacuum waste collector means, supported on said workstation, for receiving materials vacuumed through said vacuum arm under said vacuum force.

14. A method as in claim 10, wherein said relatively high vacuum force is at least about eighty inches of mercury of static pressure.

15. A method as in claim 10, further including:

providing a compressed air gun and associated hose for selected use with a source of compressed air for subsequently drying the garment to be cleaned; and

providing an electric air compressor, supported on said workstation, and connected to said air hose for driving said compressed air gun.

16. A method as in claim 10, further including providing said workstation with a support rack on which said boiler means and said vacuum means are received, an upper work surface on which a system user may work with the garment to be cleaned, and an upright hanging bar extending above said upper work surface and from which said steam spray gun may be suspended when not in use.

17. A method as in claim 16, further including providing said workstation with adjustable legs for leveling said upper work surface thereof, a sink built into said upper work surface, and a splashback panel adjacent said upper work surface.

18. A method of commercially spot cleaning soiled garments without the use of chlorinated solvents, said method comprising:

pretreating spots on the soiled garment to be cleaned by the application of water-based nonchlorinated cleaners thereto;

applying a relatively high vacuum force to the pretreated spots;

directing a flushing agent onto the pretreated spot of the garment being cleaned while continuing to apply said vacuum force thereto, so as to remove both soil and pretreatment cleaner therefrom; and

subsequently drying the garment being cleaned.

19. A method as in claim 18, wherein:

said flushing agent comprises steam; and

said drying includes continuing to apply said vacuum force to the garment after completing said directing of flushing agent thereto.

20. A method as in claim 19, wherein said drying further includes directing a stream of compressed air onto the garment for enhanced drying thereof.

21. A method as in claim 18, wherein said flushing agent is steam and said relatively high vacuum force is at least about 80 inches of mercury of static pressure.

22. A method as in claim 21, further including providing a substantially self-contained workstation having an upper work surface on which a user may work a soiled garment to be cleaned for pretreating same, a self-contained vacuum means for generating said relatively high vacuum force, a stand-up vacuum arm connected to said vacuum means and adapted for receiving a soiled garment thereon, and a self-contained steam generator means and associated steam spray gun and interconnecting hose for applying said steam to the soiled garment.

23. A method as in claim 22, further including:

providing an air compressor and air gun carried on said workstation for selectively applying compressed air to the garment for enhanced drying thereof; and

providing vacuum waste collector means carried on said workstation and associated with said vacuum means for collecting waste materials vacuumed through said vacuum arm under said vacuum force.

24. A system for commercially spot cleaning soiled garments without the use of chlorinated solvents, said system comprising:

a user workstation;

means for pretreating spots on the soiled garment to be cleaned by the application of water-based nonchlorinated cleaners thereto;

vacuum means for selectively applying a relatively high vacuum force to the pretreated spots; and

spray means for selectively directing a flushing agent onto the pretreated spot of the garment being cleaned while continuing to apply said vacuum force thereto, so as to remove both soil and pretreatment cleaner therefrom as such garment is dried with said vacuum force.

25. A system as in claim 24, wherein:

said spray means comprises means for spraying steam; and

said relatively high vacuum force is at least about 80 inches of mercury of static pressure.

26. A system as in claim 25, wherein:

said workstation includes a substantially self-contained workstation having an upper work surface on which a user may work a soiled garment to be cleaned for pretreating same, a self-contained vacuum means for generating said relatively high vacuum force, and a stand-up vacuum arm connected to said vacuum means and adapted for receiving a soiled garment thereon; and

said means for spraying steam includes a self-contained stream generator means and associated steam spray gun and interconnecting hose for spraying said steam on the soiled garment.

27. A system as in claim 26, further including an air compressor and air gun carried on said workstation for selectively applying compressed air to the garment for enhanced drying thereof.

28. A system as in claim 27, further including vacuum waste collector means carried on said workstation and associated with said vacuum means for collecting waste materials vacuumed through said vacuum arm under said vacuum force.

29. A method for commercially cleaning spots from garments using a water-based nonchlorinated solvent, said method including:

providing a substantially self-contained user workstation operating on electrical power supplied thereto, said workstation having an upper work surface;

a stand-up vacuum arm;

an electrically powered self-contained water boiler steam generation system having a supply of water and an associated controllable steam spraying gun and steam hose;

means for resting said steam spray gun when not in use;

an electrically powered self-contained vacuum means for selectively supplying at least about 80 inches of mercury of static pressure vacuum force to said vacuum arm;

a vacuum exhaust waste collector for collecting debris and dirty liquids vacuumed up with said vacuum force; and

an electrically powered self-contained air compressor with an associated air spray gun and air hose;

providing electrical power to said workstation;

penetrating spots on a garment to be cleaned by applying a water-based nonchlorinated cleaner thereto;

operating said steam generation system so as to generate steam available to a workstation user through operation of said controllable steam spray gun;

placing the pretreated garment to be cleaned onto said vacuum arm;

applying said vacuum force of at least about 80 inches of mercury of static pressure to the garment to be cleaned by activating said vacuum means;

with said vacuum force applied, operating said steam spray gun for working the pretreated garment spot with steam, so as to clean the garment of its spot and flush the cleaner therefrom to be received under said vacuum force in said vacuum exhaust waste collector; and

drying the garment by operating said air spray gun so as to direct compressed air into the garment while continuing to apply said vacuum force to the garment, which garment is thereby cleaned and dried with a water-based solvent in a substantially self-contained system and without use of chlorinated substances.

30. A method of commercially spot cleaning soiled garments without the use of chlorinated solvents, said method comprising:

pretreating spots on the soiled garment to be cleaned by the application of nonchlorinated cleaners thereto; and

applying a relatively high vacuum force to the pretreated spots so as to flush both soil and pretreatment cleaner therefrom and for drying the garment being cleaned.

31. A method as in claim 30, wherein said relatively high vacuum force is at least about 80 inches of mercury of static pressure.

32. A method as in claim 31, further including providing a substantially self-contained workstation having an upper work surface on which a user may work a soiled garment to be cleaned for pretreating same, a self-contained vacuum means for generating said relatively high vacuum force, a stand-up vacuum arm connected to said vacuum means and adapted for receiving a soiled garment thereon, and vacuum waste collector means carried on said workstation and associated with said vacuum means for collecting waste materials vacuumed through said vacuum arm under said vacuum force.

33. A method as in claim 30, wherein said nonchlorinated cleaner is petroleum based.

34. A system for commercially spot cleaning soiled garments without the use of chlorinated solvents, said system comprising:

a user workstation;

means for pretreating spots on the soiled garment to be cleaned by the application of nonchlorinated cleaners thereto; and

vacuum means for selectively applying a relatively high vacuum force to the pretreated spots, so as to flush both soil and pretreatment cleaner therefrom as such garment is drying with said vacuum force.

35. A system as in claim 34, wherein said relatively high vacuum force is at least about 80 inches of mercury of static pressure.

36. A system as in claim 35, wherein said workstation includes a substantially self-contained workstation having an upper work surface on which a user may work a soiled garment to be cleaned for pretreating same, a self-contained vacuum means for generating said relatively high vacuum force, a stand-up vacuum arm connected to said vacuum means and adapted for receiving a soiled garment thereon, and vacuum waste collector means carried on said workstation and associated with said vacuum means for collecting waste materials vacuumed through said vacuum arm under said vacuum force.

37. A system as in claim 34, wherein said nonchlorinated cleaner is petroleum based.