US2805345A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation detector
Assignee: US Philips Corp
•
Filing: 1953-02-24
•
Granted: 1957-09-03
•
Expires: 1973-02-24
Abstract
No abstract record available.
Inventors
- 👤 Warmoltz Nicolaas
- 👤 Schampers Paulus Philipp Maria
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:21
CPC Classifications
H; H01; H01J; H01J47/00; H01J47/02; H01J47/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
A RADIATION DETECTING DEVICE FOR DETERMINING AND INDICATING THE QUALITY AND INTENSITY OF INCIDENT RADIATION, COMPRISING A HERMETICALLY CLOSED VESSEL, AN INSULATING WALL MEMBER DISPOSED IN SAID VESSEL AND DIVIDING IT INTO TWO, SEPARATE, ADJACENT, SEALED PORTIONS, AN ELECTROSTATICALLY-OPERATING, INSULATED, INDICATOR SYSTEM DISPOSED IN ONE OF SAID SEALED PORTIONS AND TO WHICH AN ELECTROSTATIC CHARGE MAY BE IMPARTED AND RETAINED, A CONDUCTOR PASSING THROUGH A PORTION OF SAID WALL MEMBER AND COUPLING SAID INDICATOR SYSTEM TO THE OTHER OF SAID SEALED PORTIONS, AND A SMALL QUANTITY OF MOVABLE, CONDUCTIVE MATERIAL DISPOSED IN SAID OTHER SEALED PORTION AND ADAPTED TO COOPERATE THEREWITH TO GENERATE ON SAID CONDUCTIVE MATERIAL AN ELECTROSTATIC CHARGE, WHICH CAN BE IMPARTED TO THE INDICATOR SYSTEM VIA THE CONDUCTOR BY MOVING THE CONDUCTIVE MATERIAL INTO ENGAGEMENT WITH SAID CONDUCTOR, THE PORTION OF SAID WALL THROUGH WHICH SAID CONDUCTOR PASSES HAVING GOOD INSULATING PROPERTIES ENABLING CHARGES ASSOCIATED WITH SAID CONDUCTOR TO BE RETAINED, SAID OTHER SEALED PORTION HAVING WALL PORTIONS SPACED FROM SAID CONDUCTOR CONSTITUTED OF A MATERIAL HAVING SLIGHTLY CONDUCTIVE PROPERTIES ENABLING CHARGES GENERATED THEREON TO BE SLOWLY DISSIPATED.
Claim 2
Dependent Claim
181 words
A RADIATION DETECTING DEVICE FOR DETERMINING AND INDICATING THE QUALITY AND INTENSITY OF INCIDENT RADIATION, COMPRISING A HERMETICALLY CLOSED VESSEL, AN INSULATING WALL MEMBER DISPOSED IN SAID VESSEL AND DIVIDING IT INTO TWO, SEPARATE, ADJACENT, SEALED PORTIONS, AN ELECTROSTATICALLY-OPERATING, INSULATED, INDICATOR SYSTEM DISPOSED IN ONE OF SAID SEALED PORTIONS AND TO WHICH AN ELECTROSTATIC CHARGE MAY BE IMPARTED AND RETAINED, A CONDUCTOR PASSING THROUGH A PORTION OF SAID WALL MEMBER AND COUPLING SAID INDICATOR SYSTEM TO THE OTHER OF SAID SEALED PORTIONS, AND A SMALL QUANTITY OF MOVABLE, CONDUCTIVE MATERIAL DISPOSED IN SAID OTHER SEALED PORTION AND ADAPTED TO COOPERATE THEREWITH TO GENERATE ON SAID CONDUCTIVE MATERIAL AN ELECTROSTATIC CHARGE, WHICH CAN BE IMPARTED TO THE INDICATOR SYSTEM VIA THE CONDUCTOR BY MOVING THE CONDUCTIVE MATERIAL INTO ENGAGEMENT WITH SAID CONDUCTOR, THE PORTION OF SAID WALL THROUGH WHICH SAID CONDUCTOR PASSES HAVING GOOD INSULATING PROPERTIES ENABLING CHARGES ASSOCIATED WITH SAID CONDUCTOR TO BE RETAINED, SAID OTHER SEALED PORTION HAVING WALL PORTIONS SPACED FROM SAID CONDUCTOR CONSTITUTED OF A MATERIAL HAVING SLIGHTLY CONDUCTIVE PROPERTIES ENABLING CHARGES GENERATED THEREON TO BE SLOWLY DISSIPATED.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |