US3370503A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiation comparison system
Assignee: Beckman Coulter Inc
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Filing: 1963-12-09
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Granted: 1968-02-27
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Expires: 1983-12-09
Abstract
No abstract record available.
Inventors
- 👤 Keahl Gerald Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:28
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/31; G01N21/314; G01J; G01J1/00; G01J1/10; G01J1/20; G01J1/22; G01J1/24; G01J1/42; G01J2001/4242; G01J3/00; G01J3/12; G01J2003/1226
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A RADIATION COMPARISON SYSTEM HAVING AN OPTICAL BEAM PATH FOR PASSING RADIATION FROM A SOURCE TO A SAMPLE, THE IMPROVEMENT COMPRISING: CHOPPER ATTENUATOR MEANS INCLUDING A FIRST ROTATABLE MEANS HAVING AT LEAST TWO APERTURES THEREIN FOR CHOPPING SAID RADIATION TO FORM DISCRETE RADIATION PULSES AND A SECOND ROTATABLE MEANS FOR ROTATION WITH SAID FIRST ROTATABLE MEANS AND INCLUDING MEANS FOR PROGRESSIVELY BLOCKING AT LEAST ONE OF THE APERTURES IN SAID FIRST ROTATABLE MEANS FOR ATTENUATING ALTERNATE ONES OF SAID RADIATION PULSES BY CHANGING THE PHASE OF SAID SECOND ROTATABLE MEANS WITH RESPECT TO SAID FIRST ROTATABLE MEANS; WAVELENGTH DISPERSING MEANS OPERATED IN SYNCHRONISM WITH SAID FIRST ROTATABLE MEANS AND PROVIDING A FIRST SPECTRAL REGION DURING ALTERNATE ONES OF SAID RADIATION PULSES AND A SECOND SPECTRAL REGION DURING INTERMEDIATE ONES OF SAID RADIATION PULSES; MEANS COMPARING THE ENERGY IN SAID FIRST AND SECOND SPECTRAL REGIONS, SAID MEANS BEING CONNECTED TO SAID CHOPPER ATTENUATOR MEANS FOR CONTROLLING THE PHASE OF SAID SECOND ROTATABLE MEANS WITH RESPECT TO SAID FIRST ROTATABLE MEANS FOR EQUALIZING THE ENERGY IN SAID FIRST AND SECOND SPECTRAL REGIONS.
Claim 2
Dependent Claim
180 words
A RADIATION COMPARISON SYSTEM HAVING AN OPTICAL BEAM PATH FOR PASSING RADIATION FROM A SOURCE TO A SAMPLE, THE IMPROVEMENT COMPRISING: CHOPPER ATTENUATOR MEANS INCLUDING A FIRST ROTATABLE MEANS HAVING AT LEAST TWO APERTURES THEREIN FOR CHOPPING SAID RADIATION TO FORM DISCRETE RADIATION PULSES AND A SECOND ROTATABLE MEANS FOR ROTATION WITH SAID FIRST ROTATABLE MEANS AND INCLUDING MEANS FOR PROGRESSIVELY BLOCKING AT LEAST ONE OF THE APERTURES IN SAID FIRST ROTATABLE MEANS FOR ATTENUATING ALTERNATE ONES OF SAID RADIATION PULSES BY CHANGING THE PHASE OF SAID SECOND ROTATABLE MEANS WITH RESPECT TO SAID FIRST ROTATABLE MEANS; WAVELENGTH DISPERSING MEANS OPERATED IN SYNCHRONISM WITH SAID FIRST ROTATABLE MEANS AND PROVIDING A FIRST SPECTRAL REGION DURING ALTERNATE ONES OF SAID RADIATION PULSES AND A SECOND SPECTRAL REGION DURING INTERMEDIATE ONES OF SAID RADIATION PULSES; MEANS COMPARING THE ENERGY IN SAID FIRST AND SECOND SPECTRAL REGIONS, SAID MEANS BEING CONNECTED TO SAID CHOPPER ATTENUATOR MEANS FOR CONTROLLING THE PHASE OF SAID SECOND ROTATABLE MEANS WITH RESPECT TO SAID FIRST ROTATABLE MEANS FOR EQUALIZING THE ENERGY IN SAID FIRST AND SECOND SPECTRAL REGIONS.
References Cited (Backward Citations)
US2439373A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |