US3947686A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graphite composite X-ray transparent patient support
Assignee: Dresser Industries Inc
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Filing: 1974-04-25
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Granted: 1976-03-30
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Expires: 1994-04-25
Abstract
Abstract A patient support of an X-ray unit fabricated from a generally radiolucent graphite fiber reinforced epoxy outer shell and an inner foam core.
Inventors
- 👤 Adrianus A. G. Cooper
- 👤 Phillip M. Leopold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:14
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/04; A61B6/0407; A61B6/0442
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
140 words
An X-ray machine system having an X-ray emitter, a film cassette and a patient support having a longitudinal axis and end portions disposed between the emitter and the film cassette wherein the patient support comprises, a supporting platform having a shell, a portion of said shell being fabricated from a plurality of layers of generally radiolucent unidirectional graphite fiber epoxy composite, each layer having a longitudinal axis, the graphite fibers in each layer being oriented parallel to the longitudinal axis of the layer and the composite layers being oriented parallel to the longitudinal axis of the support, an inner core fabricated from a generally radiolucent polyurethane foam, said inner core being joined to said composite layers by a generally radiolucent bonding epoxy, means for closing the end portions of said shell, and means for attaching the support to a stand.
Claim 2
Dependent Claim
140 words
An X-ray machine system having an X-ray emitter, a film cassette and a patient support having a longitudinal axis and end portions disposed between the emitter and the film cassette wherein the patient support comprises, a supporting platform having a shell, a portion of said shell being fabricated from a plurality of layers of generally radiolucent unidirectional graphite fiber epoxy composite, each layer having a longitudinal axis, the graphite fibers in each layer being oriented parallel to the longitudinal axis of the layer and the composite layers being oriented parallel to the longitudinal axis of the support, an inner core fabricated from a generally radiolucent polyurethane foam, said inner core being joined to said composite layers by a generally radiolucent bonding epoxy, means for closing the end portions of said shell, and means for attaching the support to a stand.
Claim 3
Dependent Claim
25 words
A support as in claim 1 wherein a portion of the shell includes side walls fabricated from a plurality of two directional fiber composite layers.
Claim 4
Dependent Claim
29 words
A support as in claim 2 wherein a transition from the graphite fiber to the two directional fiber layers is arranged in a lap joint of multiple fiber layers.
Claim 5
Dependent Claim
23 words
A support as in claim 2 wherein a portion of the support is fabricated from a plurality of layers of glass fabric epoxy.
Claim 6
Dependent Claim
33 words
A support as in claim 4 wherein the transition from the glass fabric layers to the graphite and the two directional fiber layers is arranged in a lap joint of multiple fiber layers.
Claim 7
Dependent Claim
24 words
A support as in claim 1 wherein a linen sheet is employed in the bonding epoxy to contain and evenly distribute said bonding epoxy.
Claim 8
Dependent Claim
103 words
An article of manufacture comprising, an X-ray patient support having a longitudinal axis which includes, a supporting platform having a shell, a portion of said shell being fabricated from a plurality of layers of generally radiolucent unidirectional graphite fiber epoxy composite, each layer having a longitudinal axis, the graphite fibers in each layer being oriented parallel to the longitudinal axis of the layer and the composite layers being oriented parallel to the longitudinal axis of the support, an inner core fabricated from a generally radiolucent polyurethane form, and said inner core being joined to said composite layers by a generally radiolucent bonding epoxy.
Claim 9
Dependent Claim
103 words
An article of manufacture comprising, an X-ray patient support having a longitudinal axis which includes, a supporting platform having a shell, a portion of said shell being fabricated from a plurality of layers of generally radiolucent unidirectional graphite fiber epoxy composite, each layer having a longitudinal axis, the graphite fibers in each layer being oriented parallel to the longitudinal axis of the layer and the composite layers being oriented parallel to the longitudinal axis of the support, an inner core fabricated from a generally radiolucent polyurethane form, and said inner core being joined to said composite layers by a generally radiolucent bonding epoxy.
References Cited (Backward Citations)
US3449570A
Cited
US3897345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-03-30 | 1979-09-29 | 1980-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-30 | 1983-09-29 | 1984-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-30 | 1987-09-29 | 1988-03-30 | $7700.00 | Window Closed / Lapsed |