Collector and separator apparatus for lawn and garden

• US 7,354,466 B2
• Filed: 06/03/2005
• Issued: 04/08/2008
• Est. Priority Date: 11/09/2000
• Status: Expired due to Fees

• Current Assignee: Bestrake, LLC
• Original Assignee: Bestrake, LLC
• Inventors: Saathoff, Richard Bernard, Dunning, Charles Everett
• Primary Examiner(s): FABIAN-KOVACS, ARPAD
• Application Number:
  US11/145,289
• Publication Number:
  US 20050217234A1
• Time in Patent Office: 1,040 Days
• Field of Search: 563/022, 562/02, 56/131, 56/132, 56/169, 563/44, 56/129, 56/135, 56/143, 56D/IG.8, 56D/IG.12, 153/404, 153/46, 15/83, 153/403, 553/851, 553/99, 554/593, 952/69, 952/71
• US Class Current: 55/385.1
• CPC Class Codes: A01G 20/47 Vacuum or blower devices
• CPC Class Codes: A47L 9/1608 Cyclonic chamber constructions
• CPC Class Codes: A47L 9/165 Construction of inlets
• CPC Class Codes: A47L 9/1658 Construction of outlets
• CPC Class Codes: B02C 13/04 with beaters hinged to the rotor; Hammer mills
• CPC Class Codes: B02C 13/282 Shape or inner surface of mill-housings
• CPC Class Codes: B02C 18/06 with rotating knives
• CPC Class Codes: B02C 18/14 within horizontal containers B02C18/062, B02C18/065 take precedence
• CPC Class Codes: B02C 2201/066 for garden waste

Abstract

An apparatus for collection and reduction of twig-containing yard debris combining a frontally facing twig breaker with a chipper-shredder-blower unit to induce airflow for entraining debris collected at the vacuum pick up; reduce the entrained debris to a more manageable volume; impel the reduced debris to a free-flow-separator device for removing the debris from the air in which it is entrained; and deposit the debris in a detachable accumulator for subsequent dumping.

Claims

1. An apparatus for collecting yard debris adapted to be disposed on a surface, said apparatus for collecting yard debris comprising:

a. a frame;

b. a blower unit mounted on said frame adapted to induce entraining air flow adjacent said surface and collect said yard debris in said entraining air flow;

c. means for conducting said yard debris in said entraining air flow through said blower;

d. an air-solids separator means operatively connected to said blower unit for separating said yard debris in said entraining air flow into a debris-enriched stream and a debris-depleted stream, said air-solids separator means having sidewalls inclined upwardly and inwardly at from about 5 degrees to about 25 degrees from the vertical and comprising a free-flow apparatus for separating said yard debris in said entraining air flow into said debris-enriched stream and said debris-depleted stream by action of body forces thereupon; and

e. a detachable accumulation means adapted to receive said debris-enriched stream from said air-solids separator means;

said detachable accumulation means being generally impervious to air and being adapted to be detachably sealed to said air-solids separator means.

2. The apparatus of claim 1, wherein said detachable accumulation means is chosen from the group consisting of polymeric containers, polymeric bags, paper bags and generally air-impervious fabric bags.

3. The apparatus of claim 1 wherein said detachable accumulation means has at least one attached roller means adapted to support said accumulation means.

4. The apparatus in claim 1 wherein said air-solids separator means further comprises:

a. a separation chamber having an outer chamber wall, a roof, and an opening means for receiving said stream of entrained lawn debris, said roof having defined therethrough a substantially centrally located passage with a passage entrance and a passage exit;

b. a duct having a duct entrance, an outer duct wall, and a duct exit connected to said opening means, said duct entrance being operatively connected to said blower, and said duct being adapted for;

i. accepting said yard debris in said entraining air flow from said blower unit,

ii. conducting said yard debris in said entraining air flow from said duct entrance to said opening means in said separation chamber, and

iii. directing said yard debris in said entraining air flow into said separation chamber in a direction primarily tangential to said outer chamber wall;

c. said separation chamber being adapted to separate said yard debris in said entraining air flow into an outerly located debris-enriched stream and an innerly located debris-depleted stream;

d. said substantially centrally located passage being adapted to exhaust said debris-depleted stream from said separation chamber into the atmosphere;

e. said detachable accumulation means being adapted for receiving said debris-enriched stream; and

f. a baffle means being disposed between said separation chamber and said detachable accumulation means, said baffle means being adapted for inhibiting secondary flow from said detachable accumulation means into said separation chamber and impeding re-entrainment of fine particulates from said detachable accumulation means into said debris-depleted stream, said separation chamber having means providing an opening around said baffle into said detachable accumulation means for permitting passage of said outerly located debris-enriched stream from said separation chamber into said detachable accumulation means.

5. The apparatus of claim 1 wherein said detachable accumulation means has a generally polyhedral shape.

6. The apparatus of claim 1 wherein said detachable accumulation means has a generally hexahedral shape.

7. The apparatus of claim 1 wherein said detachable accumulation means has a generally heptahedral shape.

8. The apparatus of claim 3 wherein said detachable accumulation means is detachably sealed to said air-solids separator means and wherein said roller means is adapted to support said accumulation means.

9. The apparatus of claim 1 wherein said apparatus for collecting said yard debris further comprises ramp means for raising said detachable accumulation means from said surface as said detachable accumulation means is being attached to said apparatus.

10. The apparatus of claim 1 wherein said apparatus for collecting said yard debris further comprises ramp means for raising said detachable accumulation means from said surface as said detachable accumulation means is being pushed forward into attachment with said apparatus.

11. The apparatus of claim 1 wherein said detachable accumulation means and said air-solids separator means have matching tongue-and-groove means enabling said detachable accumulation means to be slidably sealed to said air-solids separator means in supporting engagement therewith.

12. The apparatus of claim 11 wherein the entrance ends of grooves on said air-solids separator means are downwardly flared to facilitate engagement of tongue rails on said accumulation means with said grooves.

13. The apparatus of claim 1 further comprising a fastener adapted for securing said detachable accumulation means in sealed engagement with said air-solids separator means.

14. The apparatus of claim 1 further comprising a mechanical-advantage fastener adapted for securing said detachable accumulation means in sealed engagement with said air-solids separator means.

15. The apparatus of claim 1 wherein said detachable accumulation means is releasably secured to said air-solids separator means.

16. The apparatus of claim 1 wherein said detachable accumulation means has a perimetral frame detachably sealed to, and pivotably mounted to, said air-solids separator means.

17. The apparatus of claim 1 wherein said detachable accumulation means is pivotably mounted to said frame and is adapted to be sealingly secured to said air-solids separator means.

18. The apparatus of claim 1 wherein said detachable accumulation means and said frame have matching tongue-and-groove means enabling said detachable accumulation means to be slidably sealed to and supported by said frame.

19. The apparatus of claim 1 wherein a maneuvering handle is attached to said detachable accumulation means.

20. The apparatus of claim 1 further comprising at least one auxiliary handle means attached to said detachable accumulation means for lifting said detachable accumulation means.

21. The apparatus of claim 1 wherein said accumulation means has one or more observation panels affording observation of the debris level within said accumulation means.

22. The apparatus of claim 1 wherein said accumulation means has one or more adjustable leg means suitable for supporting one end of said accumulation means.

23. The apparatus of claim 1 wherein said blower unit is operatively connected to said air-solids separator via a duct extending between said blower unit and said air-solids separator means.

24. The apparatus of claim 23 further comprising an adjustable flow-restricting device disposed within said duct extending between said blower unit and said air-solids separator.

25. The apparatus of claim 23 wherein said adjustable flow-restricting device is a pivotable damper.

26. The apparatus of claim 23 wherein said adjustable flow-restricting device is a sliding-gate device.

27. The apparatus of claim 1 further comprising an adjustable flow-restricting device disposed within said means for conducting said yard debris in said entraining air flow through said blower.

28. The apparatus of claim 1 wherein said blower unit comprises a shredder/rotor.

29. The apparatus of claim 1 wherein said blower unit comprises a chipper/shredder.

30. An apparatus for collecting yard debris adapted to be disposed on a surface, said apparatus for collecting yard debris comprising:

a. a frame;

b. a blower unit mounted on said frame adapted to induce entraining air flow and entrain said yard debris in said entraining air flow;

c. means for conducting said yard debris in said entraining air flow through said blower;

d. an air-solids separator means operatively connected to said blower unit for separating said yard debris in said entraining air flow into a debris-enriched stream and a debris-depleted stream, said air-solids separator means having sidewalls inclined upwardly and inwardly at from about 5 degrees to about 25 degrees from the vertical and comprising a free-flow apparatus for separating said yard debris in said entraining air flow into said debris-enriched stream and said debris-depleted stream by action of body forces thereupon; and

e. an accumulation means adapted to receive said debris-enriched stream from said air-solids separator means;

said accumulation means being generally impervious to air.

31. The apparatus of claim 30, wherein said accumulation means is adapted to be detached from said air-solids separator means.

32. The apparatus of claim 31 wherein said accumulation means has at least one attached roller means adapted to support said accumulation means.

33. The apparatus of claim 32 wherein said accumulation means is detachably sealed to said air-solids separator means and wherein said roller means is adapted to support said accumulation means upon detachment of said accumulation means from said air-solids separator means.

34. The apparatus of claim 30, wherein said accumulation means is chosen from the group consisting of polymeric containers, polymeric bags, paper bags and generally air-impervious fabric bags.

35. The apparatus in claim 30 wherein said air-solids separator means further comprises:

a. a separation chamber having an outer chamber wall, a roof, and an opening means for receiving said stream of entrained lawn debris, said roof having defined therethrough a substantially centrally located passage with a passage entrance and a passage exit;

b. a duct having a duct entrance, an outer duct wall, and a duct exit connected to said opening means, said duct entrance being operatively connected to said blower, and said duct being adapted for;

i. accepting said yard debris in said entraining air flow from said blower unit,

ii. conducting said yard debris in said entraining air flow from said duct entrance to said opening means in said separation chamber, and

iii. directing said yard debris in said entraining air flow into said separation chamber in a direction primarily tangential to said outer chamber wall;

c. said separation chamber being adapted to separate said yard debris in said entraining air flow into an outerly located debris-enriched stream and an innerly located debris-depleted stream;

d. said substantially centrally located passage being adapted to exhaust said debris-depleted stream from said separation chamber into the atmosphere; and

e. said accumulation means being adapted for receiving said debris-enriched stream.

36. The apparatus of claim 30 wherein said accumulation means has a generally polyhedral shape.

37. The apparatus of claim 30 wherein said accumulation means has a generally hexahedral shape.

38. The apparatus of claim 30 wherein said accumulation means has a generally heptahedral shape.

39. The apparatus of claim 30 wherein said accumulation means is releasably secured to said air-solids separator means.

40. The apparatus of claim 30 wherein said accumulation means has a perimetral frame detachably sealed to, and pivotably mounted to, said air-solids separator means.

41. The apparatus of claim 30 wherein said accumulation means is pivotably mounted to said frame and is adapted to be sealingly secured to said air-solids separator means.

42. The apparatus of claim 30 wherein said blower unit is operatively connected to said air-solids separator via a duct extending between said blower unit and said air-solids separator means.

43. The apparatus of claim 42 further comprising an adjustable flow-restricting device disposed within said duct extending between said blower unit and said air-solids separator.

44. The apparatus of claim 30 wherein said blower unit comprises a shredder/rotor.

45. The apparatus of claim 30 wherein said blower unit comprises a chipper/shredder.

46. An apparatus for collecting yard debris disposed on a surface, said apparatus for collecting yard debris comprising:

a. a frame;

b. a blower unit mounted on said frame adapted to induce air flow and entrain yard debris in said air flow;

c. means for conducting said yard debris in said air flow through said blower;

d. an air-solids separator means operatively connected to said blower unit for separating said yard debris in said entraining air flow into a debris-enriched stream and a debris-depleted stream, said air-solids separator means having sidewalls inclined upwardly and inwardly at from about 5 degrees to about 25 degrees from the vertical and comprising a free-flow apparatus for separating said yard debris in said entraining air flow into said debris-enriched stream and said debris-depleted stream by action of body forces thereupon; and

e. a detachable accumulation means adapted to receive said debris-enriched stream from said air-solids separator means;

said detachable accumulation means being generally impervious to air and being adapted to be deployed within a housing and detachable from said air-solids separator means.

47. The apparatus of claim 46, wherein said detachable accumulation means is chosen from the group consisting of polymeric containers, polymeric bags, paper bags and generally air-impervious fabric bags.

48. The apparatus of claim 46 wherein said detachable accumulation means is releasably secured to said air-solids separator means.