Patent US2797879A successfully refreshed from Google Patents.
Patent US3254218A successfully refreshed from Google Patents.
← Back to Patent Explorer
US3254218A Expired / Lapsed US ⏱️ 0.0 years remaining

Pulse paralysis system for scintillation detectors

Assignee: Dresser Industries Inc
•
Filing: 1962-12-31
•
Granted: 1966-05-31
•
Expires: 1982-12-31
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

No abstract record available.

Inventors

  • 👤 Eric C Hopkinson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-08 19:07
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/16; G01T1/20; G01T1/208; G01V; G01V5/00; G01V5/04; G01V5/06

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 121 words
IN A RADIATION DETECTION SYSTEM INCLUDING A COMBINATION A PHOSPHOR ARRANGED AND ADAPTED TO PRODUCE A SCINTILLATION IN RESPONSE TO SUBSTANTIALLY EACH INCIDENT RADAATION OF SUITABLE CHARACTER; A NORMALLY CONDUCTING PHOTOMULTIPLIER TUBE HAVING A PHOTOCATHODE ARRANGED TO EMIT SEPARATE PULSES OF PRIMARY ELECTRONS IN RESPONSE TO SEPARATELY OCCURING SCINTILLATIONS, AT LEAST ONE DYNODE ARRANGED AT A FIRST POTENTIAL RELATIVE TO SAID PHOTOCATHODE TO ACCELERATE SAID PRIMARY ELECTRONS AND IN RESPONSE THERETO TO EMIT SECONDARY ELECTRONS, AND AN ANODE ARRANGED TO DEVELOP A FIRST PULSE OF ELECTRIC CURRENT FUNCTIONALLY RELATED TO SAID SECONDARY ELECTRONS; AND MEANS INCLUDING A CABLE CONNECTED BETWEEN SAID ANODE AND A POINT REMOTE FROM SAID SYSTEM FOR CONDUCTING SAID FIRST PULSE OF ELECTRIC CURRENT TO SAID REMOTE POINT;
Claim 2
Dependent Claim 121 words
IN A RADIATION DETECTION SYSTEM INCLUDING A COMBINATION A PHOSPHOR ARRANGED AND ADAPTED TO PRODUCE A SCINTILLATION IN RESPONSE TO SUBSTANTIALLY EACH INCIDENT RADAATION OF SUITABLE CHARACTER; A NORMALLY CONDUCTING PHOTOMULTIPLIER TUBE HAVING A PHOTOCATHODE ARRANGED TO EMIT SEPARATE PULSES OF PRIMARY ELECTRONS IN RESPONSE TO SEPARATELY OCCURING SCINTILLATIONS, AT LEAST ONE DYNODE ARRANGED AT A FIRST POTENTIAL RELATIVE TO SAID PHOTOCATHODE TO ACCELERATE SAID PRIMARY ELECTRONS AND IN RESPONSE THERETO TO EMIT SECONDARY ELECTRONS, AND AN ANODE ARRANGED TO DEVELOP A FIRST PULSE OF ELECTRIC CURRENT FUNCTIONALLY RELATED TO SAID SECONDARY ELECTRONS; AND MEANS INCLUDING A CABLE CONNECTED BETWEEN SAID ANODE AND A POINT REMOTE FROM SAID SYSTEM FOR CONDUCTING SAID FIRST PULSE OF ELECTRIC CURRENT TO SAID REMOTE POINT;

References Cited (Backward Citations)

US2991364A Cited
US2911535A Cited
US3102954A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1969-05-30 1969-11-29 1970-05-31 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1973-05-30 1973-11-29 1974-05-31 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1977-05-30 1977-11-29 1978-05-31 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag