X-ray devices using epoxy resins strengthened with carbonic fibrous material

{
  "publication_number": "US4146793A",
  "country": "US",
  "kind": "A",
  "title": "X-ray devices using epoxy resins strengthened with carbonic fibrous material",
  "abstract": "Cast resins strengthened with carbonic fibrous material are used as the material for making parts which transmit X-rays and at the same time are subject to mechanical stresses.",
  "claims": [
    "1. For the transmission of X-rays in medical X-ray examination and therapy devices, the use of carbon fiber tissue embedded in epoxy synthetic resin matrices for the patients table top, for the side of the casing of the X-ray image-intensifier directed toward the source of the X-rays, for the side of the casing of the X-ray spotfilm device directed toward the source of the X-rays and for the sides of cassettes directed toward the source of the X-rays.",
    "2. An X-ray device according to claim 1 having a patient's table top manufactured by epoxy resins strengthened with carbon-fibers.",
    "3. An X-ray device according to claim 2 having a patient's table top with a plate manufactured of epoxy resins strengthened with carbon-fibers, said plate being stretched between longitudinal bars of said table top.",
    "4. An X-ray device according to claim 3, wherein said bars have grooves and wherein the longitudinal edges of said plate have head-like thickened parts fixed in said grooves.",
    "5. An X-ray device according to claim 1, having a table top manufactured of top and bottom covering layers having a core of hard foam engaged between said layers, said layers being manufactured by resins strengthened with carbon-fibers.",
    "6. An X-ray device according to claim 5 wherein said top and bottom layers are interconnected at least at the longitudinal sides of the table top.",
    "7. An X-ray device according to claim 1 having the side of an X-ray image amplifying casing directed toward the source of X-rays manufactured by epoxy resins strengthened with carbon-fibers.",
    "8. An X-ray device according to claim 1 having the side of the casing of an X-ray spotfilm directed toward the source of X-rays manufactured by epoxy resins strengthened with carbon-fibers.",
    "9. An X-ray device according to claim 1 having X-ray film cassettes, the side of said cassettes directed toward the source of X-rays being manufactured by epoxy resins strengthened with carbon-fibers.",
    "10. A process for X-ray examination and X-ray therapy wherein the ray dose being applied is diminished and using an X-ray examination and therapy device having parts which are penetrated by the rays and are subjected to high mechanical loads, said parts being composed of a material built from epoxy resin which is strengthened by inserted carbon fibers.",
    "11. A casing of an image intensifier having a side directed toward a source of X-rays, said side consisting of a carbon fiber tissue embedded in an epoxy resin.",
    "12. A casing of an X-ray spotfilm device having a side directed toward a source of X-rays, said side consisting of a carbon fiber tissue embedded in an epoxy resin.",
    "13. An X-ray cassette having a side directed toward a source of X-rays, said side consisting of a carbon fiber tissue embedded in an epoxy resin."
  ],
  "description_excerpt": "The present application is a continuation in part of a co-pending patent applicaton Ser. No. 522,229, filed Nov. 8, 1974 which is a divisional application of prior co-pending application Ser. No. 382,013 filed July 23, 1973 both abandoned.\n\nThis invention relates to new uses of cast resins strengthened with carbonic fibrous material.\n\nA synthetic substance having the base of epoxyde synthetic resin is known, the mechanical strength of which is greatly increased by intercalating a carbonic fibrous material. The uses of this new synthetic substance are described at length in the prospectus of the film Fothergill & Harvey Ltd., Composite Materials Division, Littleborough, Lancashire, England, publication No. 27 B 1971, printed in England. These uses were described as advantageous due to the saving in weight, resistance against chemical action and small coefficient of friction. Among others the following uses were indicated: airplane cells, sporting devices, artificial members, rotary parts of centrifuges, rotary sheets, containers, parts of ships, self lubricating bearings and tools.\n\nThe present invention is based on extensive experimentation which was actually carried out and which has discovered completely new clearly apparent properties of cast resin strengthened with carbonic fibrous material. Due to these properties the present invention provides the use of these synthetic substances as material for producing parts which transmit X-rays and at the same time are subject to mechanical stresses.",
  "cpc": [
    "A61B 6/0442",
    "A61B 6/0428",
    "B29C 70/04",
    "B29K 2307/00"
  ],
  "ipc": [
    "A61B 6/04"
  ],
  "assignees": [
    "Siemens Corp"
  ],
  "inventors": [
    "Lennart Bergstrom",
    "Hans E. Warden"
  ],
  "filing_date": "1976-04-12",
  "publication_date": "1979-03-27",
  "grant_date": "1979-03-27",
  "priority_date": "1972-07-27",
  "application_number": "US-67578576-A",
  "family_id": "25763627",
  "cited_by_count": 67,
  "citations": [
    "US2930305A",
    "US3449570A",
    "US3897345A",
    "US3947686A"
  ]
}