US3238371A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray beam attenuator
Assignee: Picker X Ray Corp
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Filing: 1963-02-11
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Granted: 1966-03-01
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Expires: 1983-02-11
Abstract
No abstract record available.
Inventors
- 👤 Jr Thomas C Furnas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 01:52
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/02; G21K1/04; G01; G01N; G01N23/00; G01N23/20; G01N23/20008; G01N2223/00; G01N2223/10; G01N2223/101; G01N2223/1016; G01N2223/30; G01N2223/316; G01N2223/32
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
118 words
AN X-RAY BEAM ATTENUATOR COMPRISING: (A) A HOUSING DEFINING A THROUGH BEAM PASSAGE; (B) SAID HOUSING HAVING FIRST AND SECOND SPACED PAIRS OF PARALLEL BORES; (C) THE BORES OF EACH PAIR BEING SUBSTANTIALLY TANGENTIAL TO ONE ANOTHER; (D) EACH BORE INCLUDING SPACED END JOURNALLING PORTIONS AND A CENTRAL BEAM PORTION INTERSECTING SAID PASSAGE; (E) FIRST AND SECOND PAIRS OF ROTATABLE ATTENUATOR MEMBERS, EACH MEMBER BEING MOUNTED IN A DIFFERENT AND ASSOCIATED ONE OF THE BORES, EACH MEMBER INCLUDING A CENTRAL ECCENTRIC PORTION AND SPACED JOURNALLING PORTIONS JOURNALED IN THE JOURNALLING PORTIONS OF ITS ASSOCIATED BORE; AND, (F) THE MEMBERS OF EACH PAIR BEING ROTATABLE FROM A SUBSTANTIALLY FULLY CLOSED POSITION BLOCKING SAID PASSAGE TO A FULLY OPEN POSITION.
Claim 2
Dependent Claim
118 words
AN X-RAY BEAM ATTENUATOR COMPRISING: (A) A HOUSING DEFINING A THROUGH BEAM PASSAGE; (B) SAID HOUSING HAVING FIRST AND SECOND SPACED PAIRS OF PARALLEL BORES; (C) THE BORES OF EACH PAIR BEING SUBSTANTIALLY TANGENTIAL TO ONE ANOTHER; (D) EACH BORE INCLUDING SPACED END JOURNALLING PORTIONS AND A CENTRAL BEAM PORTION INTERSECTING SAID PASSAGE; (E) FIRST AND SECOND PAIRS OF ROTATABLE ATTENUATOR MEMBERS, EACH MEMBER BEING MOUNTED IN A DIFFERENT AND ASSOCIATED ONE OF THE BORES, EACH MEMBER INCLUDING A CENTRAL ECCENTRIC PORTION AND SPACED JOURNALLING PORTIONS JOURNALED IN THE JOURNALLING PORTIONS OF ITS ASSOCIATED BORE; AND, (F) THE MEMBERS OF EACH PAIR BEING ROTATABLE FROM A SUBSTANTIALLY FULLY CLOSED POSITION BLOCKING SAID PASSAGE TO A FULLY OPEN POSITION.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |