US2740897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for processing radiation detection devices
Assignee: Polaroid Corp
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Filing: 1951-04-05
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Granted: 1956-04-03
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Expires: 1971-04-05
Abstract
No abstract record available.
Inventors
- 👤 Murry N Fairbank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:56
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/02; G01T1/08; Y; Y10; Y10T; Y10T24/00; Y10T24/20; Y10T24/202; Y10T24/203; Y10T24/204
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
570 words
A DEVICE FOR INTERCEPTING, RESPONDING TO AND GIVE A VISIBLE INDICATION OF RADIATION TO WHICH THE USER THEREOF HAS BEEN EXPOSED, SAID DEVICE COMPRISING A DOSIMETER AND MEANS FOR MOUNTING KSAID DOSIMETER AND PROCESSING THE SAME, SAID DOSIMETER COMPRISING AN ELONGATED ENVELOPE AND CARRIED WITHIN SAID ENVELOPE AT LEAST A RUPTURABLE CONTAINER HOLDING A PROCESSING LIQUID AND A PHOTO SENSITIVE ELEMENT, THE WALLS OF SAID ENVELOPE BEING OPAQUE TO AT LEAST SO MUCH OF THE VISIBLE SPECTRUM AS IS ACTINIC TO SAID PHOTOSENSITIVE ELEMENT AND BEING TRANSPARENT AT LEAST IN PART TO SAID RADIATION, SAID DOSIMETER CARRYING PHOTOSENSITIVE REAGENTS IN SUFFICIENT QUANTITY TO PRODUCE A VISIBLE RECORD OF THE EXPOSURE OF THE PHOTOSENSITIVE ELEMENT AND SAID CONTAINER BEING SO LOCATED RELATIVE TO SAID PHOTOSENSITIVE ELEMENT AS TO BE CAPABLE OF RELEASING ITS LIQUID TO PERMEATE SAID ELEMENT, SAID LIQUID, WHEN RELEASED FROM SAID CONTAINER, RENDERING SAID REAGENTS EFFECTIVE TO FORM SAID VISIBLE RECORD, SAID ENVELOPE INCLUDING LEADER MEANS, SAID MOUNTING AND PROCESSING MEANS COMPRISING A BASE PLATE PROVIDING MEANS FOR SUPPORTING SAID DOSIMETER, A PAIR OF PRESSURE-APPLYING MEMBERS SUPPORTED BY SAID BASE PLATE ADJACENT ONE END THEREOF AND EXTENDING TRANSVERSELY OF SAID BASE PLATE, SAID DOSIMETER BEING ENGAGEABLE BY AND MOVABLE BETWEEN SAID PRESSUREAPPLY MEMBERS AND WHEN SUPPORTED ON SAID BASE PLATE HAVING THE LEADER MEANS THEREOF EXTENDING THROUGH AND ENGAGED BY SAID PRESSURE-APPLYING MEMBERS WHEREBY SAID DOSIMETER IS MOVABLE BETWEEN SAID PRESSURE-APPLYING MEMBERS BY EXERTING A PULLING FORCE ON THE LEADER MEANS OF THE DOSIMETER, SAID PRESSURE-APPLYING MEMBERS PROVIDING MEANS UPON DRAWING THE DOSIMETER THEREBETWEEN FOR RUPTURING SAID CONTAINER AND RELEASING THE CONTENTS THEREOF TO PERMEATE THE PHOTOSENSITIVE ELEMENT AND TO FORM IN SAID DOSIMETER A VISIBLE RECORD OF THE EXTENT OF THE PHOTOEXPOSURE OF THE PHOTOSENSITIVE ELEMENT, SAID PRESSURE-APPLYING MEMBERS BEING MOUNTED IN GENERAL OVERLYING RELATION TO EACH OTHER AND A FIRST ONE OF SAID PRESSURE-APPLYING MEMBERS BEING MOUNTED FOR MOVEMENT TOWARD AND AWAY FROM THE SECOND-APPLYING MEMBER, SPRING MEANS CARRIED BY SAID BASE PLATE AND OPERATIVELY CONNECTED TO SAID MOVABLE AND FIRST PRESSURE-APPLYING MEMBER FOR URGING SAID MOVABLE PRESSURE-APPLYING MEMBER INTO CONTACT WITH SAID SECOND PRESSURE-APPLYING MEMBER, AND MANUALLY OPERATED MEANS MOVABLE TOWARD AND AWAY FROM SAID BASE PLATE AND CONNECTED TO SAID MOVABLE PRESSURE-APPLYING MEMBER AND ACTUATABLE FOR EFFECTING THE SEPARATION OF SAID PRESSURE-APPLYING MEMBERS, SAID SPRING MEANS BEING SO FORMED AND SHAPED AS TO PREDETERMINEDLY LOAD SAID MEANS FOR RUPTURING SAID CONTAINER AND TO SUBSTANTIALLY CONSTANTLY URGE SAID MOVABLE PRESSURE-APPLYING MEMBER TOWARD SAID SECOND PRESSUREAPPLYING MEMBER BY A FORCE OF PREDETERMINED MAGNITUDE, SAID MANUALLY OPERATED MEANS HAVING A PORTION WHICH IS LOCATED IN OVERLYING TO ONE END OF SAID BASE PLATE AND WHICH IS CONTACTABLE BY A FINGER OF THE BASE FOR THE EXERTION THEREON OF PRESSURE SUFFICIENT TO OVERCOME THE RESISTANCE OF SAID SPRING MEANS AND TO MOVE SAID MANUALLY OPERATED MEANS FROM A POSITION WHEREIN IT IS FURTHEST REMOVED FROM SAID BASE TOWARD SAID BASE PLATE TO EFFECT THE MOVEMENT OF SAID MOVABLE PRESSURE-APPLYING MEMBER AWAY FROM SAID SECOND PRESSUREAPPLYING MEMBER WHEREBY TO PERMIT SAID DOSIMETER TO BY SUPPORTEDLY MOUNTED ON SAID BASE PLATE WITH THE LEADER MEANS OF THE DOSIMETER EXTENDING BETWEEN SAID PRESSURE-APPLYING MEMBERS FOR CARRYING OUT THE PROCESSING OF SAID DOSIMETER, SAID SPRING MEANS ALSO FUNCTIONING OF URGE SAID MANUALLY OPERATED MEANS INTO ITS POSITION FURTHEST REMOVED FROM SAID BASE PLATE AND TO RESTORE SAID MANUALLY OPERATED MEANS TO SAID POSITION UPON RELEASE OF PRESSURE UPON SAID MANUALLY OPERATED MEANS.
Claim 2
Independent Claim
570 words
A DEVICE FOR INTERCEPTING, RESPONDING TO AND GIVE A VISIBLE INDICATION OF RADIATION TO WHICH THE USER THEREOF HAS BEEN EXPOSED, SAID DEVICE COMPRISING A DOSIMETER AND MEANS FOR MOUNTING KSAID DOSIMETER AND PROCESSING THE SAME, SAID DOSIMETER COMPRISING AN ELONGATED ENVELOPE AND CARRIED WITHIN SAID ENVELOPE AT LEAST A RUPTURABLE CONTAINER HOLDING A PROCESSING LIQUID AND A PHOTO SENSITIVE ELEMENT, THE WALLS OF SAID ENVELOPE BEING OPAQUE TO AT LEAST SO MUCH OF THE VISIBLE SPECTRUM AS IS ACTINIC TO SAID PHOTOSENSITIVE ELEMENT AND BEING TRANSPARENT AT LEAST IN PART TO SAID RADIATION, SAID DOSIMETER CARRYING PHOTOSENSITIVE REAGENTS IN SUFFICIENT QUANTITY TO PRODUCE A VISIBLE RECORD OF THE EXPOSURE OF THE PHOTOSENSITIVE ELEMENT AND SAID CONTAINER BEING SO LOCATED RELATIVE TO SAID PHOTOSENSITIVE ELEMENT AS TO BE CAPABLE OF RELEASING ITS LIQUID TO PERMEATE SAID ELEMENT, SAID LIQUID, WHEN RELEASED FROM SAID CONTAINER, RENDERING SAID REAGENTS EFFECTIVE TO FORM SAID VISIBLE RECORD, SAID ENVELOPE INCLUDING LEADER MEANS, SAID MOUNTING AND PROCESSING MEANS COMPRISING A BASE PLATE PROVIDING MEANS FOR SUPPORTING SAID DOSIMETER, A PAIR OF PRESSURE-APPLYING MEMBERS SUPPORTED BY SAID BASE PLATE ADJACENT ONE END THEREOF AND EXTENDING TRANSVERSELY OF SAID BASE PLATE, SAID DOSIMETER BEING ENGAGEABLE BY AND MOVABLE BETWEEN SAID PRESSUREAPPLY MEMBERS AND WHEN SUPPORTED ON SAID BASE PLATE HAVING THE LEADER MEANS THEREOF EXTENDING THROUGH AND ENGAGED BY SAID PRESSURE-APPLYING MEMBERS WHEREBY SAID DOSIMETER IS MOVABLE BETWEEN SAID PRESSURE-APPLYING MEMBERS BY EXERTING A PULLING FORCE ON THE LEADER MEANS OF THE DOSIMETER, SAID PRESSURE-APPLYING MEMBERS PROVIDING MEANS UPON DRAWING THE DOSIMETER THEREBETWEEN FOR RUPTURING SAID CONTAINER AND RELEASING THE CONTENTS THEREOF TO PERMEATE THE PHOTOSENSITIVE ELEMENT AND TO FORM IN SAID DOSIMETER A VISIBLE RECORD OF THE EXTENT OF THE PHOTOEXPOSURE OF THE PHOTOSENSITIVE ELEMENT, SAID PRESSURE-APPLYING MEMBERS BEING MOUNTED IN GENERAL OVERLYING RELATION TO EACH OTHER AND A FIRST ONE OF SAID PRESSURE-APPLYING MEMBERS BEING MOUNTED FOR MOVEMENT TOWARD AND AWAY FROM THE SECOND-APPLYING MEMBER, SPRING MEANS CARRIED BY SAID BASE PLATE AND OPERATIVELY CONNECTED TO SAID MOVABLE AND FIRST PRESSURE-APPLYING MEMBER FOR URGING SAID MOVABLE PRESSURE-APPLYING MEMBER INTO CONTACT WITH SAID SECOND PRESSURE-APPLYING MEMBER, AND MANUALLY OPERATED MEANS MOVABLE TOWARD AND AWAY FROM SAID BASE PLATE AND CONNECTED TO SAID MOVABLE PRESSURE-APPLYING MEMBER AND ACTUATABLE FOR EFFECTING THE SEPARATION OF SAID PRESSURE-APPLYING MEMBERS, SAID SPRING MEANS BEING SO FORMED AND SHAPED AS TO PREDETERMINEDLY LOAD SAID MEANS FOR RUPTURING SAID CONTAINER AND TO SUBSTANTIALLY CONSTANTLY URGE SAID MOVABLE PRESSURE-APPLYING MEMBER TOWARD SAID SECOND PRESSUREAPPLYING MEMBER BY A FORCE OF PREDETERMINED MAGNITUDE, SAID MANUALLY OPERATED MEANS HAVING A PORTION WHICH IS LOCATED IN OVERLYING TO ONE END OF SAID BASE PLATE AND WHICH IS CONTACTABLE BY A FINGER OF THE BASE FOR THE EXERTION THEREON OF PRESSURE SUFFICIENT TO OVERCOME THE RESISTANCE OF SAID SPRING MEANS AND TO MOVE SAID MANUALLY OPERATED MEANS FROM A POSITION WHEREIN IT IS FURTHEST REMOVED FROM SAID BASE TOWARD SAID BASE PLATE TO EFFECT THE MOVEMENT OF SAID MOVABLE PRESSURE-APPLYING MEMBER AWAY FROM SAID SECOND PRESSUREAPPLYING MEMBER WHEREBY TO PERMIT SAID DOSIMETER TO BY SUPPORTEDLY MOUNTED ON SAID BASE PLATE WITH THE LEADER MEANS OF THE DOSIMETER EXTENDING BETWEEN SAID PRESSURE-APPLYING MEMBERS FOR CARRYING OUT THE PROCESSING OF SAID DOSIMETER, SAID SPRING MEANS ALSO FUNCTIONING OF URGE SAID MANUALLY OPERATED MEANS INTO ITS POSITION FURTHEST REMOVED FROM SAID BASE PLATE AND TO RESTORE SAID MANUALLY OPERATED MEANS TO SAID POSITION UPON RELEASE OF PRESSURE UPON SAID MANUALLY OPERATED MEANS.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-03 | 1959-10-03 | 1960-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-03 | 1963-10-03 | 1964-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-03 | 1967-10-03 | 1968-04-03 | $7700.00 | Window Closed / Lapsed |