Lint collector

• US 5,143,528 A
• Filed: 02/14/1990
• Issued: 09/01/1992
• Est. Priority Date: 02/14/1990
• Status: Expired due to Fees

• Current Assignee: Washex, LLC
• Original Assignee: Challenge Industries
• Inventors: Dongelmans, Anthony A.
• Primary Examiner(s): Bennet, Henry A.
• Application Number:
  US07/479,715
• Time in Patent Office: 930 Days
• Field of Search: 34/85, 34/82, 34/32, 55/294, 55/468, 55/290, 55/267, 55/269, 55/302, 55/283, 55/490, 55/492, 55/494
• US Class Current: 55/283
• CPC Class Codes: B01D 2265/028 Snap, latch or clip connecting means
• CPC Class Codes: B01D 46/2403 characterised by the physical shape or structure of the filtering element
• CPC Class Codes: B01D 46/4254 Allowing or improving visual supervision, e.g. lamps, transparent parts, windows
• CPC Class Codes: B01D 46/71 with pressurised gas, e.g. pulsed air

Abstract

An apparatus for collecting lint from a gas comprising a shell, a gas passageway through the shell, and a lint-collecting component positioned to collect lint from the gas. The lint-collecting component has a vertical longitudinal axis and a collecting surface, preferably cylindrical, surrounding the longitudinal axis. The apparatus also includes a cage which causes the lint to accumulate in a plurality of sections on the collecting surface. The shell has a smooth interior surface to allow the lint to travel over the surface without hang-up. A blow-off system is provided to remove accumulated lint from the collecting surface. The blow-off system includes an air reservoir and a regulator/filter for filling the reservoir with air from a supply line at a controlled rate. A control system activates the blow-off system and includes a timed delay to allow the effects of coasting to minimize.

Claims

1. An apparatus for collecting lint from a gas, comprising a substantially gas impervious shell, a gas passageway through said shell, and a lint-collecting component having a longitudinal axis and including a lint-collecting surface substantially surrounding said longitudinal axis, said lint-collecting surface including a substantially cylindrical screen, said longitudinal axis being positioned in a relatively vertical direction, said shell including a shell cylindrical portion and said cylindrical screen being positioned in a coaxial arrangement with said shell cylindrical portion, said lint collecting surface including a substantially planar circular screen substantially completely covering an axial end of said cylindrical screen, said axial end being a bottom axial end of said cylindrical screen.

2. An apparatus as set forth in claim 1 wherein at least one of said screens is made of a material including stainless steel.

3. An apparatus as set forth in claim 1 wherein said gas passageway includes an inlet and an outlet, said inlet and said outlet being positioned whereby such gas must travel radially inward to reach said outlet.

4. An apparatus as set forth in claim 3 wherein a diameter dimension of said cylindrical screen is approximately equal to twenty-four inches and a diameter dimension of said shell cylindrical portion approximately equal to twenty-four inches, whereby an annular space of five inch thickness is defined between said cylindrical screen and said shell cylindrical portion.

19. An apparatus as set forth in claim 4, further comprising cage means for causing such lint to accumulate in a plurality of sections.

20. An apparatus as set forth in claim 19 further comprising a blow-off system;

said blow-off system including;

an air reservoir;

a connection line connecting said air reservoir to an air line; and

air regulating means for filling said air reservoir with air from such air line at a controlled rate.

21. An apparatus as set forth in claim 20, wherein said shell has a smooth interior surface to allow such lint to travel over said surface without hang-up.

39. An apparatus as set forth in claim 21, further comprising a lint collector drum positioned at an axial end of said shell.

5. An apparatus for collecting lint from a gas, comprising a shell, a gas passageway through said shell, a lint-collecting component having a longitudinal axis and including a lint-collecting surface substantially surrounding said longitudinal axis, cage means for causing such lint to accumulate in a plurality of sections, and a blow-off system, said blood-off system including an air reservoir, a connection line connecting said air reservoir to an air line, air regulating means for filling said air reservoir with air from such air line at a controlled rate, orifice means in said connection line for preventing a low pressure surge in said air line during such filling of said air reservoir with air, air spray means within said lint-collecting component, and an air inlet line connecting said air reservoir to said air spray means, said air spray means being movable relative to said lint-collecting surface for directing air from said reservoir through said lint-collecting surface to progressively remove the lint in sections from said lint-collecting surface.

6. An apparatus as set forth in claim 5, wherein said shell has a smooth interior surface to allow such lint to travel over said surface without hang-up.

7. An apparatus as set forth in claim 6, further comprising a lint collecting drum positioned at an axial end of said shell.

33. An apparatus as set forth in claim 5, wherein said inlet line includes a normally closed solenoid valve, and control means are provided for activating said solenoid valve to supply air from said air reservoir to said air spray means.

8. An apparatus for collecting lint from a gas, comprising a shell, a gas passageway through such shell, a lint-collecting component positioned to collect lint from such gas, said component including a lint collecting surface, cage means for causing such lint to accumulate in a plurality of sections on said lint-collecting surface, said gas passageway including an inlet and an outlet, said cage means being positioned between said collecting surface and said outlet, said cage means including interlocking bars forming a plurality of cage openings, and air spray means movable relative to said lint-collecting surface for directing compressed air through said lint-collecting surface to progressively remove the lint in sections substantially corresponding in size to said cage openings from said lint-collecting surface.

9. An apparatus as set forth in claim 8 wherein at least some of said cage openings are polygonal.

10. An apparatus as set forth in claim 9 wherein at least some of said cage openings are square.

11. An apparatus ass et forth in claim 10 wherein said cage openings have a side dimension between two and twelve inches.

12. An apparatus as set forth in claim 11 wherein said cage openings have a side dimension approximately equal to six inches.

13. An apparatus as set forth in claim 11 wherein said cage means is made from steel mesh.

14. An apparatus for collecting lint from a gas comprising a substantially gas impervious shell, a gas passageway through such shell, and a lint-collecting component positioned to collect lint from such gas, said lint-collecting component having a longitudinal axis and including a first lint-collecting screen substantially surrounding said longitudinal axis, said longitudinal axis being positioned in a relatively vertical direction, and a second substantially planar lint-collecting screen substantially completely covering a bottom axial end of said first screen.

15. An apparatus as set forth in claim 14, wherein said shell has a smooth interior surface to allow such lint to travel over said surface without hang-ups, said shell including an upper cylindrical portion and a lower conical portion, said conical portion including a top edge bent to engage an exterior surface of said cylindrical portion, said top edge of said conical portion being welded to said exterior surface of said cylindrical portion.

16. An apparatus as set forth in claim 15 wherein said cylindrical portion includes a bottom edge that is smoothed off so as to be flush with an interior surface of said conical portion.

17. An apparatus as set forth in claim 16, further comprising cage means for causing such lint to accumulate in a plurality of sections.

18. An apparatus as set forth in claim 17 further comprising a blow-off system;

said blow-off system including;

an air reservoir;

a connection line connecting said air reservoir to an air line;

air regulating means for filling said air reservoir with air from such air line at a controlled rate, and means for directing such air from said reservoir through said lint-collecting component to remove lint from said lint-collecting component, said longitudinal axis being positioned in a relatively vertical direction.

22. An apparatus as set forth in claim 16 further comprising a blow-off system for blowing lint off said second lint-collecting screens, said blow-off system including an air reservoir, a connection line connecting said air reservoir to an air line, air regulating means for filling said air reservoir with air from such air line at a controlled rate, and air spray means movable relative to said first and second screens to direct air received from said reservoir radially outward and axially downward to remove lint from said first and second screens.

23. An apparatus as set forth in claim 16, where said shell has a smooth interior surface to allow such lint to travel over said surface without hang-up.

24. An apparatus as set forth in claim 23 wherein said shell includes an upper cylindrical portion and a lower conical portion, said conical portion including a top edge bent to engage an exterior surface of said cylindrical portion, said top edge of said conical portion being welded to said exterior surface of said cylindrical portion.

25. An apparatus as set forth in claim 16 further comprising cage means for causing such lint to accumulate in a plurality of sections on said lint-collecting component, said cage means including interlocking bars forming a plurality of cage openings.

38. An apparatus as set forth in claim 22, wherein said air spray means includes vertical and horizontal spray pipe means containing a plurality of air nozzles for directing such air received from said reservoir radially outward and axially downward to below lint off said first and second screens.

26. An apparatus for collecting lint from a gas comprising a shell, a gas passageway through such shell, a lint-collecting component positioned to collect lint from such gas, said component including a lint-collecting surface, cage means for causing such lint to accumulate in a plurality of sections on said lint-collecting surface, said cage means including interlocking bars forming a plurality of cage openings, and air spray means movable relative to said lint-collecting surface for directing compressed air through said lint-collecting surface to progressively remove the lint in sections substantially corresponding in size to said cage openings from said lint-collecting surface.

27. An apparatus as set forth in claim 26, wherein said gas passageway includes an inlet and an outlet, said cage means being positioned between said lint-collecting surface and said outlet.

28. An apparatus as set forth in claim 26, wherein said lint-collecting component has a longitudinal axis and at least a portion of said lint-collecting surface substantially surrounds said longitudinal axis.

29. An apparatus as set forth in claim 28, wherein said cage means includes a cylindrical portion surrounded by a cylindrical portion of said lint-collecting surface.

30. An apparatus for collecting lint from a gas comprising a substantially gas impervious shell, a gas passageway through said shell, a lint-collecting component positioned to collecting from said gas, said component including a lint-collecting surface, and blow-off means for blowing lint off said lint-collecting surface, said blow-off means comprising an air reservoir, a connection line connecting said air reservoir to an air line, a air regulating means for filling said air reservoir with air from such air line at a controlled rate, orifice means in said connection line for preventing a low pressure surge in said air line during such filling of said air reservoir with air, and means for directing such air from said reservoir through said lint-collecting surface to remove lint from said lint-collecting surface.

31. An apparatus as set forth in claim 30, wherein said shell has a smooth interior surface to allow such lint to travel over said interior surface without hang-up.

32. An apparatus as set forth in claim 31 wherein said longitudinal axis is positioned in a relatively vertical direction.

34. An apparatus for collecting lint from a gas, comprising a shell, a gas passageway through said shell, a lint-collecting component having a longitudinal axis and including a lint-collecting surface substantially surrounding said longitudinal axis, cage means for causing such lint to accumulate in a plurality of sections, sand a blow-off system, said blow-off system including an air reservoir, a connection line connecting said air reservoir to an air line, air regulating means for filling said air reservoir with air from such air line at a controlled rate, air spray means within said lint-collecting component, and an air inlet line connecting said air reservoir to said air spray means, said air spray means being movable relative to said lint-collecting surface for directing air from said reservoir through said lint-collecting surface to progressively remove the lint in sections from said lint-collecting surface, said inlet line including a normally closed solenoid valve, and control means are provided for activating said solenoid valve to supply air from said air reservoir to said air spray means, said control means including delay means for delaying opening of said solenoid valve for a set period of time, said delay means including an adjustable timer.

35. An apparatus as set forth in claim 34, wherein said control means includes a second timer for closing said solenoid valve after said solenoid valve has been opened by said adjustable timer for a set period of time.

36. An apparatus for collecting lint from a gas, comprising a shell, a gas passageway through said shell, a lint-collecting component having a longitudinal axis and including a first lint-collecting screen substantially surrounding said longitudinal axis, said longitudinal axis being positioned in a relatively vertical direction, and a second lint-collecting screen overlying a bottom axial end of said first screen, cage means for causing such lint to accumulate in a plurality of sections, and a blow-off system, said blow-off system including an air reservoir, a connection line connecting said air reservoir to an air line, air regulating means or filling said air reservoir with air from such air line at a controlled rate, air spray means within said lint-collecting component, and an air inlet line connecting said air reservoir to said air spray means, said air spray means being movable relative to said lint-collecting surface for directing air from said reservoir through said lint-collecting surface to progressively remove the lint in sections from said lint-collecting surface, said air spray means including vertical and horizontal spray pipe means containing a plurality of air nozzles for directing such air received from said reservoir radially outward and axially downward to blow lint off said first and second screens.

37. An apparatus as set forth in claim 36, further comprising means for allowing a controlled amount of such air received from said reservoir to escape from said air spray means in a direction causing said air spray means to move relative to said lint-collecting component.