Apparatus for piercing garbage bags and collecting nonrigid, elongate objects and powder

• US 20070084765A1
• Filed: 10/13/2005
• Published: 04/19/2007
• Est. Priority Date: 10/13/2005
• Status: Active Grant

• Current Assignee: WST International (Holdings) Limited
• Original Assignee: WST International (Holdings) Limited
• Inventors: Tse, Steven
• Granted Patent: US 7,416,084 B2
• Time in Patent Office: Days
• US Class Current: 209/689
• CPC Class Codes: B02C 17/007 specially adapted for disintegrating refuse
• CPC Class Codes: B02C 17/02 with perforated container
• CPC Class Codes: B03B 9/06 specially adapted for refuse
• CPC Class Codes: B07B 1/24 with fixed or moving interior agitators
• CPC Class Codes: B07B 1/524 the brushes being rotating
• CPC Class Codes: B07B 1/55 with fluid jets
• CPC Class Codes: B65B 69/0008 Opening and emptying bags
• CPC Class Codes: B65B 69/0041 by puncturing
• CPC Class Codes: Y02W 30/52 Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
• CPC Class Codes: Y10S 209/93 Municipal solid waste sorting

Abstract

Provided is an apparatus comprising a screen assembly for sifting powder including a rear feeding device, a first conveyor adapted to convey garbage bags from the feeding device to the screen assembly, an inclined board extended downwardly from a front end of the screen assembly, and a second conveyor provided below the board, the second conveyor being adapted to convey materials leaving the screen assembly to a subsequent station for processing; and a nonrigid, elongate object collection assembly extended from the rear of the screen assembly through the screen assembly to a point in front of the screen assembly, the object collection assembly including an elongate housing of rectangular section, a gable roof provided on the housing, a lengthwise gap provided on a top of the gable roof, and a container provided below a front end thereof for collecting nonrigid, elongate objects dropped therefrom.

Claims

1. An apparatus for disposing garbage bags comprising:

a rotatable, hollow, cylindrical screen assembly for sifting powder including a feeding device spaced from a rear end, a first conveyor adapted to convey the garbage bags from the feeding device to the screen assembly, an inclined board extended downwardly from a lower portion of a front end of the screen assembly, and a second conveyor provided below the board, the second conveyor being adapted to convey materials leaving the screen assembly to a subsequent station for processing; and

a nonrigid, elongate object collection assembly extended from the rear end of the screen assembly through the screen assembly to a point in front of the screen assembly, the object collection assembly including an elongate housing of rectangular section, a gable roof provided on the housing, a lengthwise gap provided on a top of the gable roof, and a first container provided below a front end thereof for collecting nonrigid, elongate objects dropped therefrom.

2. The apparatus of claim 1, wherein the screen assembly further comprises a plurality of rectangular holes formed on an outer surface thereof, a gear provided around a middle portion thereof, a pinion provided at one side thereof and being in gear engagement with the gear, and a first drive source adapted to drive the pinion.

3. The apparatus of claim 1, wherein the screen assembly further comprises a lengthwise plate having a curved surface provided on an inner surface thereof, the plate including a plurality of paws formed on the curved surface, and a plurality of pointed blades formed on the inner surface thereof, the blades being disposed lengthwise and opposite the plate.

4. The apparatus of claim 1, further comprising a second drive source, an endless transmission being driven by the second drive source and enclosed by the housing, the transmission including two parallel endless chains, and a plurality of equally spaced posts fixedly connected between the chains.

5. The apparatus of claim 1, wherein the screen assembly is inclined from its rear end to its front end.

6. The apparatus of claim 1, wherein the screen assembly further comprises a support including a plurality of top rollers at either side of the screen assembly for rotatably supporting the screen assembly above a bottom of the support by a predetermined distance.

7. The apparatus of claim 1, wherein the feeding device comprises a chute above the first conveyor.

8. The apparatus of claim 2, further comprising a cleaning assembly provided at one side of the screen assembly and faced the holes, the cleaning assembly including two spaced brackets, a drive shaft formed between the brackets, a plurality of brush wheels rotatably formed on the drive shaft, and a drive and transmission device, the drive and transmission device being adapted to push the brush wheels to contact the holes and rotate the brush wheels for cleaning blockage in the holes.