US3777148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collimator
Assignee: Case Western Reserve University
•
Filing: 1971-06-25
•
Granted: 1973-12-04
•
Expires: 1991-06-25
Abstract
Abstract A collimator having a front and rear and a longitudinal axis passing from the front to the rear. Spaced septa between the front and the rear defining openings and including a plurality of longitudinal sides parallel to the longitudinal axis and converging downwardly at different angles to form channels which converge to a single focal line. The septa further includes spaced parallel sides transverse to the longitudinal axis and intersecting with the longitudinal sides. The parallel sides form transverse channels which are non-focusing along the focal line.
Inventors
- 👤 F Miraldi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:58
CPC Classifications
G; G01; G01T; G01T1/00; G01T1/29; G01T1/2914; G01T1/2985; G01T1/16; G01T1/161; G01T1/164; G01T1/1641; G01T1/1642; A; A61; A61B; A61B6/00; A61B6/02; A61B6/03; A61B6/037
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
103 words
A collimator comprising: a body having a front and rear and a longitudinal axis passing from the front to the rear; spaced septa between the front and the rear defining openings and including a plurality of longitudinal sides parallel to the longitudinal axis, said longitudinal sides converging downwardly at different angles to form channels which converge to a single focal line which is parallel to the longitudinal axis of the collimator and the septa further including spaced parallel sides transverse to the longitudinal axis and intersecting with the longitudinal sides, the parallel sides forming transverse channels which are non-focusing along the focal line.
Claim 2
Dependent Claim
103 words
A collimator comprising: a body having a front and rear and a longitudinal axis passing from the front to the rear; spaced septa between the front and the rear defining openings and including a plurality of longitudinal sides parallel to the longitudinal axis, said longitudinal sides converging downwardly at different angles to form channels which converge to a single focal line which is parallel to the longitudinal axis of the collimator and the septa further including spaced parallel sides transverse to the longitudinal axis and intersecting with the longitudinal sides, the parallel sides forming transverse channels which are non-focusing along the focal line.
Claim 3
Dependent Claim
32 words
The collimator of claim 1 wherein the longitudinal sides are symmetric about either side of a line passing from the front to the rear and are substantially perpendicular to the parallel sides.
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) | 1976-12-03 | 1977-06-04 | 1977-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-12-03 | 1981-06-04 | 1981-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-12-03 | 1985-06-04 | 1985-12-04 | $7700.00 | Window Closed / Lapsed |