US3304427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray beam defining apparatus having adjustable collimator plates disposed in three parallel planes
Assignee: Machlett Laboratories Inc
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Filing: 1964-02-13
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Granted: 1967-02-14
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Expires: 1984-02-13
Abstract
No abstract record available.
Inventors
- 👤 Leonard F Peyser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:46
CPC Classifications
G; G21; G21K; G21K1/00; G21K1/02; G21K1/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
AN X-RAY COLLIMATOR FOR ROTATING ANODE TUBES COMPRISING FIRST AND SECOND PAIRS OF COLLIMATING ELEMENTS MOVABLE IN PLANES AT RIGHT ANGLES TO EACH OTHER FOR DEFINING A RECTANGULAR BEAM OF ADJUSTABLE DIMENSIONS, A MOUNTING PLATE AT ONE END FOR ATTACHMENT TO AN X-RAY TUBE HOUSING, TWO PAIRS OF OPPOSING OFF-FOCUS RADIATION SHIELDING PLATES EXTENDING BEYOND SAID MOUNTING PLATE SO AS TO POSITION THEIR EDGE CLOSE TO THE WINDOW OF AN X-RAY TUBE WHEN THE MOUNTING PLATE IS FASTENED TO THE HOUSING THEREOF, ONE PAIR OF OPPOSED SHIELDING PLATES BEING STATIONARY, PARALLEL TO THE PLANES OF SAID FIRST PAIR OF COLLIMATING ELEMENTS AND TO THE PLANE OF ANODE ROTATION, AND SUBTENDING AN ANGLE ABOUT THE TUBE FOCAL SPOT SLIGHTLY GREATER THAN THE MAXIMUM ANGLE OF THE OPEN-
Claim 2
Dependent Claim
126 words
AN X-RAY COLLIMATOR FOR ROTATING ANODE TUBES COMPRISING FIRST AND SECOND PAIRS OF COLLIMATING ELEMENTS MOVABLE IN PLANES AT RIGHT ANGLES TO EACH OTHER FOR DEFINING A RECTANGULAR BEAM OF ADJUSTABLE DIMENSIONS, A MOUNTING PLATE AT ONE END FOR ATTACHMENT TO AN X-RAY TUBE HOUSING, TWO PAIRS OF OPPOSING OFF-FOCUS RADIATION SHIELDING PLATES EXTENDING BEYOND SAID MOUNTING PLATE SO AS TO POSITION THEIR EDGE CLOSE TO THE WINDOW OF AN X-RAY TUBE WHEN THE MOUNTING PLATE IS FASTENED TO THE HOUSING THEREOF, ONE PAIR OF OPPOSED SHIELDING PLATES BEING STATIONARY, PARALLEL TO THE PLANES OF SAID FIRST PAIR OF COLLIMATING ELEMENTS AND TO THE PLANE OF ANODE ROTATION, AND SUBTENDING AN ANGLE ABOUT THE TUBE FOCAL SPOT SLIGHTLY GREATER THAN THE MAXIMUM ANGLE OF THE OPEN-
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) | 1970-02-13 | 1970-08-15 | 1971-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-13 | 1974-08-15 | 1975-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-13 | 1978-08-15 | 1979-02-14 | $7700.00 | Window Closed / Lapsed |