Patent US4145612A successfully refreshed from Google Patents.
US4145612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
X-ray patient support stretcher and method for fabrication
Assignee: Dresser Industries Inc
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Filing: 1977-08-31
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Granted: 1979-03-20
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Expires: 1997-08-31
Abstract
Abstract A patient support stretcher for X-ray units is formed by curing a multiple layered composite in situ on a balsa wood core.
Inventors
- 👤 Adrianus A. G. Cooper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:04
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/04; A61B6/0407; A61B6/0442; B; B29; B29C; B29C70/00; B29C70/04; B29C70/28; B29C70/40; B29C70/42; B29C70/44; A61G; A61G1/00; A61G1/01; B29C43/00; B29C43/02; B29C43/10; B29C43/12
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
70 words
A radiolucent support stretcher for supporting patients during X-ray examination which comprises: a balsa wood core having a longitudinal axis; a skin, said skin having a plurality of layers of oriented fibers bound in a polymeric resin matrix, said plurality of layers being sandwiched between woven fabric prepreg; said skin being disposed about and bonded to said balsa wood core with said oriented fibers in parallel with said longitudinal axis.
Claim 2
Dependent Claim
70 words
A radiolucent support stretcher for supporting patients during X-ray examination which comprises: a balsa wood core having a longitudinal axis; a skin, said skin having a plurality of layers of oriented fibers bound in a polymeric resin matrix, said plurality of layers being sandwiched between woven fabric prepreg; said skin being disposed about and bonded to said balsa wood core with said oriented fibers in parallel with said longitudinal axis.
Claim 3
Dependent Claim
17 words
A radiolucent support stretcher as defined in claim 1, further comprising means for translating said support stretcher.
Claim 4
Dependent Claim
17 words
A radiolucent support stretcher as defined in claim 2, wherein said woven fabric prepreg includes aramid fibers.
Claim 5
Dependent Claim
16 words
A radiolucent support stretcher as defined in claim 3, wherein said polymeric resin is an epoxy.
Claim 6
Dependent Claim
17 words
A radiolucent support stretcher as defined in claim 4, wherein said layers of fibers include graphite fibers.
Claim 7
Dependent Claim
17 words
A radiolucent support stretcher as defined in claim 4, wherein said layers of fibers include carbon fibers.
Claim 8
Dependent Claim
17 words
A radiolucent support stretcher as defined in claim 4, wherein said layers of fibers include aramid fibers.
Claim 9
Dependent Claim
16 words
A radiolucent support stretcher as defined in claim 3, wherein said polymeric resin is a polyester.
Claim 10
Dependent Claim
17 words
A radiolucent support stretcher as defined in claim 8, wherein said layers of fibers include graphite fibers.
Claim 11
Dependent Claim
17 words
A radiolucent support stretcher as defined in claim 8, wherein said layers of fibers include carbon fibers.
Claim 12
Dependent Claim
84 words
A radiolucent support stretecher for supporting patients during X-ray examination which comprises: a balsa wood core having a longitudinal axis; a skin having a plurality of layers of a first composite with fibers oriented and bound in a polymeric resin matrix and at least two layers of a second composite with fibers oriented and bound in a polymeric resin matrix, the layers of said first composite being sandwiched between said second composite; said skin being disposed about and bonded to said balsa wood core.
Claim 13
Dependent Claim
84 words
A radiolucent support stretecher for supporting patients during X-ray examination which comprises: a balsa wood core having a longitudinal axis; a skin having a plurality of layers of a first composite with fibers oriented and bound in a polymeric resin matrix and at least two layers of a second composite with fibers oriented and bound in a polymeric resin matrix, the layers of said first composite being sandwiched between said second composite; said skin being disposed about and bonded to said balsa wood core.
Claim 14
Dependent Claim
38 words
A radiolucent support stretcher as defined in claim 11, wherein said skin includes a top skin bonded to the top of said balsa wood core and a bottom skin bonded to the bottom of said balsa wood core.
Claim 15
Dependent Claim
34 words
A radiolucent stretcher as defined in claim 12, wherein said fibers in said top skin and said fibers in said first composite of said bottom skin are all oriented parallel to said longitudinal axis.
Claim 16
Dependent Claim
29 words
A radiolucent support stretcher as defined in claim 13, wherein said polymeric resin in said first and second composites is selected from the group consisting of epoxy and polyester.
Claim 17
Dependent Claim
29 words
A radiolucent support stretcher as defined in claim 14, wherein said fibers in said first and second composites are selected from the group consisting of aramid, graphite and carbon.
Claim 18
Dependent Claim
25 words
A radiolucent support stretcher as defined in claim 15, wherein the same polymeric resin is used in said first composite and in said second composite.
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) | 1982-03-19 | 1982-09-18 | 1983-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-03-19 | 1986-09-18 | 1987-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-03-19 | 1990-09-18 | 1991-03-20 | $7700.00 | Window Closed / Lapsed |