Ejector discharge safety chute

• US 6,372,189 B1
• Filed: 04/30/1999
• Issued: 04/16/2002
• Est. Priority Date: 04/30/1999
• Status: Expired due to Fees

• Current Assignee: John Bean Technologies Corporation
• Original Assignee: EMC Corporation (Dell Technologies Inc.)
• Inventors: Veltman, Joost, Stavig, Tracy
• Primary Examiner(s): Warden, Sr., Robert J.
• Assistant Examiner(s): CONLEY, SEAN EVERETT
• Application Number:
  US09/303,773
• Time in Patent Office: 1,082 Days
• Field of Search: 221/13, 221/21, 221/80, 221/81, 221/82, 993/60, 993/61, 993/62, 994/83, 141/21, 222/21, 222/22, 222/41, 222/47, 222/49, 53/58, 535/00, 422/26, 422/28, 422/302-304, 134/134
• US Class Current: 422/302
• CPC Class Codes: A23L 3/001 Details of apparatus, e.g. for transport, for loading or unloading manipulation, pressure feed valves
• CPC Class Codes: A23L 3/003 Control or safety devices for sterilisation or pasteurisation systems
• CPC Class Codes: A61L 2/04 Heat A61L2/08 takes precedence
• CPC Class Codes: A61L 2/24 Apparatus using programmed or automatic operation

Abstract

A safety sensor mechanism (10) for a rotary sterilizer (16) including a slider plate (40) positioned in the revolving path of cans (11) and movable away from a discharge opening (28) of the sterilizer. The safety mechanism includes slider bars (44) and tubular housings (48) with coil springs (50) for creating a spring-loaded slider plate that yields if engaged by a misaligned can that does not proper eject from the sterilizer.

Claims

1. An apparatus for monitoring proper discharge of cans from a rotary sterilizer having a rotary reel, a plurality of reel angles at the periphery of the rotary reel for moving the cans around a revolving path within the sterilizer, a spiral rail for guiding the cans from one end of the sterilizer to the other end along a spiral path, a discharge chute for receiving discharged cans from the sterilizer, and an ejector for discharging the cans onto the discharge chute, the apparatus comprising:

a sensor for detecting the presence of a can not properly discharged from the sterilizer, the sensor detecting the can at a point within the sterilizer and beyond the discharge point of the can.

2. An apparatus for monitoring proper discharge of cans from a rotary sterilizer having a rotary reel, a discharge chute for receiving discharged cans from the reel, and an ejector for discharging the cans onto the discharge chute, the apparatus comprising:

a discharge chute extension extending into a revolving path of the cans and movable in reaction to engagement with a can that is not discharged by the ejector; and

a sensor detecting movement of the discharge chute extension when a can is not properly discharged from the sterilizer and engages and moves the discharge chute extension.

3. The apparatus of claim 2 wherein,

the sensor provides a signal stopping operation of the sterilizer in order to retrieve the can.

4. The apparatus of claim 2 wherein,

the discharge chute extension is movable at least partially in the direction of movement of the revolving path of cans.

5. The apparatus of claim 2 wherein,

the discharge chute extension forms part of the discharge chute.

6. The apparatus of claim 2 wherein,

the discharge cute extension includes a spring bias against which a non-discharged can must work to move the extension.

7. The apparatus of claim 5 wherein,

the discharge chute extension is movable out of the revolving path of the cans upon engagement with a can not properly discharged.

8. The apparatus of claim 7 wherein,

the discharge chute extension is movable along a linear path.

9. The apparatus of claim 8 wherein,

the discharge chute extension includes a guide mechanism for limiting movement of the discharge chute extension along the linear path.

10. The apparatus of claim 4 wherein,

the discharge chute extension includes a limit device for limiting the length of movement of the discharge chute extension.

11. The apparatus of claim 6 wherein,

the spring bias is adjustable.

12. A rotary sterilizer for processing cans, comprising,

a rotary reel,

a plurality of reel angles at the periphery of the rotary reel for moving the cans around a revolving path within the sterilizer,

a spiral rail for guiding the cans from one end of the sterilizer to the other end along a spiral path,

a discharge chute for receiving discharged cans from the sterilizer,

an ejector for discharging the cans onto the discharge chute, and

a discharge chute extension apparatus for monitoring proper discharge of cans from the sterilizer, the discharge chute extension projecting into the revolving path of the cans and being movable in reaction to engagement with a can that is not discharged by the ejector.

13. The sterilizer of claim 12 wherein,

the discharge chute extension is positioned in the revolving path of the cans at a point for engagement with cans not properly discharged onto the discharge chute.

14. The sterilizer of claim 13 wherein,

the discharge chute extension is movable at least partially in the direction of movement of a revolving can.

15. The sterilizer of claim 13 wherein,

the discharge chute extension forms part of the discharge chute.

16. The sterilizer of claim 15 wherein,

the discharge chute extension is movable out of the revolving path of the cans upon engagement with a can not properly discharged.

17. The sterilizer of claim 16 wherein,

the discharge chute extension is movable along a linear path.

18. The sterilizer of claim 17 wherein,

the discharge chute extension includes a guide mechanism for limiting movement of the discharge chute extension along the linear path.

19. The sterilizer of claim 17 wherein,

the discharge chute extension includes a limit device for limiting the length of movement of the discharge chute extension.

20. The sterilizer of claim 12 and further comprising a sensor for detecting movement of the discharge chute extension.

21. The sterilizer of claim 12 wherein,

the discharge chute extension includes a spring bias against which a non-discharged can must work to move the extension.

22. The sterilizer of claim 21 wherein,

the spring bias is adjustable.