System to identify bags disinfected by irradiation which punches

Details System to identify bags disinfected by irradiation which punches System to identify bags disinfected by irradiation which punches

Filed on

1994-12-20

Date issued

1996-09-17

Examiner

Allen, Stephone

Patent Class

Radiant energy

SubClass

Photocells; circuits and apparatus

SubSubClass

Optical or pre-photocell system

Other Related Categories

2505594, 250223B, 340686, 356 39, 356240, H01J 4014

Type

Patent

Status

active

Patent number

055570984

Description

ABSTRACT:
A system and a method are provided for detecting a bag that has been subjected to a process, such as illumination, wherein the contents of the bag require processing before subsequent use. The system (1) has a drawer (10) on which one or more bags may be placed and properly oriented. Punches (22) are provided for punching slugs from the bag indicative of a status of the processing of the bag. The punches (22) are aligned with die apertures (26) of a die (24) and corresponding punch apertures (20) through the drawer (10). The bag may include polarizing materials (50) such that the status of the processing of the bag (52) may be sensed. To this end, a rotating polarizing piece (70) is provided as well as a light source (34) and a sensor (38). The polarities between the polarizing piece (50) of the bag and the rotating polarizing piece (70) is monitored by the sensor (38) to indicate a condition or status of the processing of the bag and/or to further indicate tampering taking place in the process.

REFERENCES:
patent: 3316411 (1963-06-01), Linderman
patent: 3677627 (1971-02-01), Johnston et al.
patent: 3838291 (1974-09-01), Marion et al.
patent: 4205769 (1980-06-01), Blitchington
patent: 4866282 (1989-09-01), Miripol et al.
patent: 4952812 (1990-08-01), Miripol et al.
patent: 5141110 (1992-08-01), Trischan et al.
patent: 5290221 (1994-03-01), Wolf, Jr. et al.
patent: 5296715 (1994-03-01), Kronberg
patent: 5305081 (1994-04-01), Gooch et al.

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