Method for manufacturing a joint and a joint between sections to be joined to each other and surrounded by a joining compound

{
  "publication_number": "US5181747A",
  "country": "US",
  "kind": "A",
  "title": "Method for manufacturing a joint and a joint between sections to be joined to each other and surrounded by a joining compound",
  "abstract": "The invention relates to a method for manufacturing a joint, in which method around the sections (14, 15) to be joined to each other sections of a sealing element (12, 13) are placed and the joint (16) is heated by a form (10). A reinforced plastic is used for the joining compound (12, 13), and sections (11a, 11b) of the form (10) are pressed, in a manner known per se, around the members (14, 15) surrounded by the reinforced plastic sealing member sections and to be joined to each other in the joint (16). The invention also relates to a joint manufactured by the aforementioned method.",
  "claims": [
    "1. A method for manufacturing a T-joint between a first pipe member and a second pipe member, said method comprising the steps of: bringing said first and second pipe members to be jointed into contact with each other; covering an area between said first and second pipe members to be jointed with an unheated flexible sheet material selected from the group consisting of sheet molding compounds and glass mat thermoplastics and thereafter; pressing a mold against said sheet material covering said area to be jointed; and heating said mold to harden and join said sheet material to said first and second pipe members; and removing said mold out of contact with said joint area.",
    "2. The method of claim 1, further comprising using a plurality of flexible sections of said sheet material to cover said joint area."
  ],
  "description_excerpt": "The invention relates to a method for manufacturing a joint, in which method a joining compound is placed around the members to be joined to each other and the joint is heated by means of a form. The invention also comprises a joint between members joined to each other and surrounded by a joining compound. As for the prior art, reference is made to U.S. Pat. No. 4,793,879, in which is described a method for repairing a damaged area of a composite structure. In this known method, a fettling compound is spread on the area to be repaired, which compound is heated via an opposite side of the composite structure, and after this, pressure is increased into the area to be repaired, whereafter the fettling compound is hardened.\n\nAn object of the invention is the construction of a joint manufactured of cold-set plastic or thermoplast, the manufacture of which joint is simple and easy to perform. Another object of the invention is to develop such a method as can be practiced on site without having to move the members when manufacturing the joint. For achieving the objects presented above and hereinafter, the method according to the invention is mainly characterized in that a reinforced plastic intermediate product is used as the joining compound and in that the sections of the form are pressed, in a manner known per se, around the members surrounded by the reinforced plastic and to be joined to each other for achieving the joint.",
  "cpc": [
    "B29D 23/008",
    "B29C 43/00",
    "B29C 65/18",
    "B29C 65/4815",
    "B29C 65/5042",
    "B29C 65/5071",
    "B29C 65/70",
    "B29C 66/112",
    "B29C 66/1122",
    "B29C 66/114",
    "B29C 66/52241",
    "B29C 66/5229",
    "B29C 66/54741",
    "B29C 66/7212",
    "B29C 66/7392",
    "B29C 66/8322",
    "B29C 70/86",
    "B29K 2105/06",
    "B29L 2031/246",
    "F16B 11/006",
    "Y10T 403/4966"
  ],
  "ipc": [
    "B29C 43/00",
    "B29C 65/50",
    "B29C 65/70",
    "B29C 70/86",
    "B29D 23/00"
  ],
  "assignees": [
    "NESTE OY"
  ],
  "inventors": [
    "JOVERO OLLI"
  ],
  "filing_date": "1990-11-02",
  "publication_date": "1993-01-26",
  "grant_date": "1993-01-26",
  "priority_date": "1989-11-07",
  "application_number": "US-60824990-A",
  "family_id": "8529299",
  "citations": [
    "US3563276A",
    "US3865662A",
    "US4576671A",
    "US4876041A",
    "US4876788A",
    "US4950437A",
    "US676582A"
  ]
}